diff --git a/libc/calls/cfgetispeed.c b/libc/calls/cfgetispeed.c
index 14cc6ba23..51fefc120 100644
--- a/libc/calls/cfgetispeed.c
+++ b/libc/calls/cfgetispeed.c
@@ -20,6 +20,9 @@
 #include "libc/sysv/consts/termios.h"
 
 uint32_t cfgetispeed(const struct termios *t) {
-  /* return t->c_cflag & CBAUD; */ /* ??? */
-  return t->c_ispeed;
+  if (CBAUD) {
+    return t->c_cflag & CBAUD;
+  } else {
+    return t->c_ispeed;
+  }
 }
diff --git a/libc/calls/cfgetospeed.c b/libc/calls/cfgetospeed.c
index 8b57f02ca..f0e57fc16 100644
--- a/libc/calls/cfgetospeed.c
+++ b/libc/calls/cfgetospeed.c
@@ -20,6 +20,9 @@
 #include "libc/sysv/consts/termios.h"
 
 uint32_t cfgetospeed(const struct termios *t) {
-  /* return t->c_cflag & CBAUD; */ /* ??? */
-  return t->c_ospeed;
+  if (CBAUD) {
+    return t->c_cflag & CBAUD;
+  } else {
+    return t->c_ospeed;
+  }
 }
diff --git a/libc/calls/cfsetospeed.c b/libc/calls/cfsetospeed.c
index 5c2696c0d..e996ec1ac 100644
--- a/libc/calls/cfsetospeed.c
+++ b/libc/calls/cfsetospeed.c
@@ -22,11 +22,15 @@
 
 int cfsetospeed(struct termios *t, int speed) {
   if (CBAUD) {
-    if (speed & ~CBAUD) return einval();
-    t->c_cflag &= ~CBAUD;
-    t->c_cflag |= speed;
+    if (!(speed & ~CBAUD)) {
+      t->c_cflag &= ~CBAUD;
+      t->c_cflag |= speed;
+      return 0;
+    } else {
+      return einval();
+    }
   } else {
     t->c_ospeed = speed;
+    return 0;
   }
-  return 0;
 }
diff --git a/libc/dns/dns.h b/libc/dns/dns.h
index 31764a4f5..60f9f0b7d 100644
--- a/libc/dns/dns.h
+++ b/libc/dns/dns.h
@@ -64,8 +64,8 @@ int CompareDnsNames(const char *, const char *) paramsnonnull();
 int PascalifyDnsName(uint8_t *, size_t, const char *) paramsnonnull();
 int ResolveDns(const struct ResolvConf *, int, const char *, struct sockaddr *,
                uint32_t) paramsnonnull();
-int ResolveDnsReverse(const struct ResolvConf *resolvconf, int, const char *,
-                      char *, size_t) paramsnonnull();
+int ResolveDnsReverse(const struct ResolvConf *, int, const char *, char *,
+                      size_t) paramsnonnull();
 struct addrinfo *newaddrinfo(uint16_t);
 
 COSMOPOLITAN_C_END_
diff --git a/libc/dns/ent.h b/libc/dns/ent.h
index 930ce0f31..13180ba92 100644
--- a/libc/dns/ent.h
+++ b/libc/dns/ent.h
@@ -1,7 +1,6 @@
 #ifndef COSMOPOLITAN_LIBC_DNS_ENT_H_
 #define COSMOPOLITAN_LIBC_DNS_ENT_H_
 #include "libc/dns/dns.h"
-
 #if !(__ASSEMBLER__ + __LINKER__ + 0)
 COSMOPOLITAN_C_START_
 
diff --git a/libc/dns/getaddrinfo.c b/libc/dns/getaddrinfo.c
index 0d6865b22..b30ce2e32 100644
--- a/libc/dns/getaddrinfo.c
+++ b/libc/dns/getaddrinfo.c
@@ -50,7 +50,6 @@ int getaddrinfo(const char *name, const char *service,
   struct addrinfo *ai;
   char proto[32];
   port = 0;
-
   if (!name && !service) return EAI_NONAME;
   if (!name && (hints->ai_flags & AI_CANONNAME)) return EAI_BADFLAGS;
   if (service && (port = parseport(service)) == -1) {
@@ -60,10 +59,10 @@ int getaddrinfo(const char *name, const char *service,
       strcpy(proto, "udp");
     else /* ai_socktype == 0 */
       strcpy(proto, "");
-
     if ((port = LookupServicesByName(service, proto, sizeof(proto), NULL, 0,
-                                     NULL)) == -1)
+                                     NULL)) == -1) {
       return EAI_NONAME;
+    }
   }
   if (!(ai = newaddrinfo(port))) return EAI_MEMORY;
   if (service) ai->ai_addr4->sin_port = htons(port);
diff --git a/libc/dns/gethostbyaddr.c b/libc/dns/gethostbyaddr.c
index ad30f2a24..1f570f825 100644
--- a/libc/dns/gethostbyaddr.c
+++ b/libc/dns/gethostbyaddr.c
@@ -23,7 +23,6 @@
 │ OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,        │
 │ ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR        │
 │ OTHER DEALINGS IN THE SOFTWARE.                                              │
-│                                                                              │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/dns/ent.h"
 #include "libc/mem/mem.h"
@@ -35,35 +34,25 @@ struct hostent *gethostbyaddr(const void *s_addr, socklen_t len, int type) {
   static char *h_aliases[1];
   static char *h_addr_list[2];
   static char h_addr_list0[4];
-
   struct sockaddr_in addr;
-
   if (!ptr1) {
     he1.h_name = h_name;
-
     he1.h_aliases = h_aliases;
     he1.h_aliases[0] = NULL;
-
     he1.h_addrtype = AF_INET;
     he1.h_length = 4;
     he1.h_addr_list = h_addr_list;
-
     he1.h_addr_list[0] = h_addr_list0;
     he1.h_addr_list[1] = NULL;
-
     ptr1 = &he1;
   }
-
   if (type != AF_INET || len != sizeof(uint32_t)) return NULL;
   addr.sin_family = AF_INET;
   addr.sin_port = 0;
   addr.sin_addr.s_addr = *(uint32_t *)(s_addr);
-
   if (getnameinfo((struct sockaddr *)&addr, sizeof(addr), ptr1->h_name,
                   DNS_NAME_MAX, NULL, 0, 0))
     return NULL;
-
   *((uint32_t *)ptr1->h_addr_list[0]) = (addr.sin_addr.s_addr);
-
   return ptr1;
 }
diff --git a/libc/dns/gethostbyname.c b/libc/dns/gethostbyname.c
index cc7d4365e..dd70de244 100644
--- a/libc/dns/gethostbyname.c
+++ b/libc/dns/gethostbyname.c
@@ -23,7 +23,6 @@
 │ OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,        │
 │ ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR        │
 │ OTHER DEALINGS IN THE SOFTWARE.                                              │
-│                                                                              │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/dns/ent.h"
 #include "libc/mem/mem.h"
diff --git a/libc/dns/getnameinfo.c b/libc/dns/getnameinfo.c
index 10a62f5ae..0966a676b 100644
--- a/libc/dns/getnameinfo.c
+++ b/libc/dns/getnameinfo.c
@@ -23,7 +23,6 @@
 │ OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,        │
 │ ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR        │
 │ OTHER DEALINGS IN THE SOFTWARE.                                              │
-│                                                                              │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/bits/safemacros.internal.h"
 #include "libc/calls/calls.h"
diff --git a/libc/dns/getntprotocolstxtpath.c b/libc/dns/getntprotocolstxtpath.c
new file mode 100644
index 000000000..8717b5ab8
--- /dev/null
+++ b/libc/dns/getntprotocolstxtpath.c
@@ -0,0 +1,41 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ This is free and unencumbered software released into the public domain.      │
+│                                                                              │
+│ Anyone is free to copy, modify, publish, use, compile, sell, or              │
+│ distribute this software, either in source code form or as a compiled        │
+│ binary, for any purpose, commercial or non-commercial, and by any            │
+│ means.                                                                       │
+│                                                                              │
+│ In jurisdictions that recognize copyright laws, the author or authors        │
+│ of this software dedicate any and all copyright interest in the              │
+│ software to the public domain. We make this dedication for the benefit       │
+│ of the public at large and to the detriment of our heirs and                 │
+│ successors. We intend this dedication to be an overt act of                  │
+│ relinquishment in perpetuity of all present and future rights to this        │
+│ software under copyright law.                                                │
+│                                                                              │
+│ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,              │
+│ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF           │
+│ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.       │
+│ IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR            │
+│ OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,        │
+│ ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR        │
+│ OTHER DEALINGS IN THE SOFTWARE.                                              │
+╚─────────────────────────────────────────────────────────────────────────────*/
+#include "libc/dns/prototxt.h"
+#include "libc/nt/systeminfo.h"
+
+textwindows char *GetNtProtocolsTxtPath(char *pathbuf, uint32_t size) {
+  /* protocol, not plural */
+  const char *const kWinHostsPath = "\\drivers\\etc\\protocol";
+  uint32_t len = GetSystemDirectoryA(&pathbuf[0], size);
+  if (len && len + strlen(kWinHostsPath) + 1 < size) {
+    if (pathbuf[len] == '\\') pathbuf[len--] = '\0';
+    memcpy(&pathbuf[len], kWinHostsPath, strlen(kWinHostsPath) + 1);
+    return &pathbuf[0];
+  } else {
+    return NULL;
+  }
+}
diff --git a/libc/dns/getntservicestxtpath.c b/libc/dns/getntservicestxtpath.c
new file mode 100644
index 000000000..7f02cac88
--- /dev/null
+++ b/libc/dns/getntservicestxtpath.c
@@ -0,0 +1,40 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ This is free and unencumbered software released into the public domain.      │
+│                                                                              │
+│ Anyone is free to copy, modify, publish, use, compile, sell, or              │
+│ distribute this software, either in source code form or as a compiled        │
+│ binary, for any purpose, commercial or non-commercial, and by any            │
+│ means.                                                                       │
+│                                                                              │
+│ In jurisdictions that recognize copyright laws, the author or authors        │
+│ of this software dedicate any and all copyright interest in the              │
+│ software to the public domain. We make this dedication for the benefit       │
+│ of the public at large and to the detriment of our heirs and                 │
+│ successors. We intend this dedication to be an overt act of                  │
+│ relinquishment in perpetuity of all present and future rights to this        │
+│ software under copyright law.                                                │
+│                                                                              │
+│ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,              │
+│ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF           │
+│ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.       │
+│ IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR            │
+│ OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,        │
+│ ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR        │
+│ OTHER DEALINGS IN THE SOFTWARE.                                              │
+╚─────────────────────────────────────────────────────────────────────────────*/
+#include "libc/dns/servicestxt.h"
+#include "libc/nt/systeminfo.h"
+
+textwindows char *GetNtServicesTxtPath(char *pathbuf, uint32_t size) {
+  const char *const kWinHostsPath = "\\drivers\\etc\\services";
+  uint32_t len = GetSystemDirectoryA(&pathbuf[0], size);
+  if (len && len + strlen(kWinHostsPath) + 1 < size) {
+    if (pathbuf[len] == '\\') pathbuf[len--] = '\0';
+    memcpy(&pathbuf[len], kWinHostsPath, strlen(kWinHostsPath) + 1);
+    return &pathbuf[0];
+  } else {
+    return NULL;
+  }
+}
diff --git a/libc/dns/getprotobyname.c b/libc/dns/getprotobyname.c
index 5a7099b2f..f15fd744c 100644
--- a/libc/dns/getprotobyname.c
+++ b/libc/dns/getprotobyname.c
@@ -23,7 +23,6 @@
 │ OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,        │
 │ ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR        │
 │ OTHER DEALINGS IN THE SOFTWARE.                                              │
-│                                                                              │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/dns/ent.h"
 #include "libc/dns/prototxt.h"
diff --git a/libc/dns/getprotobynumber.c b/libc/dns/getprotobynumber.c
index 800d3efab..9f92dbda2 100644
--- a/libc/dns/getprotobynumber.c
+++ b/libc/dns/getprotobynumber.c
@@ -23,7 +23,6 @@
 │ OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,        │
 │ ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR        │
 │ OTHER DEALINGS IN THE SOFTWARE.                                              │
-│                                                                              │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/dns/ent.h"
 #include "libc/dns/prototxt.h"
diff --git a/libc/dns/getservbyname.c b/libc/dns/getservbyname.c
index 4c20cc43a..293fd528e 100644
--- a/libc/dns/getservbyname.c
+++ b/libc/dns/getservbyname.c
@@ -23,7 +23,6 @@
 │ OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,        │
 │ ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR        │
 │ OTHER DEALINGS IN THE SOFTWARE.                                              │
-│                                                                              │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/dns/ent.h"
 #include "libc/dns/servicestxt.h"
@@ -35,7 +34,6 @@ struct servent *getservbyname(const char *name, const char *proto) {
   static char s_name[DNS_NAME_MAX + 1];
   static char localproto[DNS_NAME_MAX + 1];
   int p;
-
   if (!ptr0) {
     se0.s_name = s_name;
     if (!(se0.s_aliases = calloc(1, sizeof(char *)))) return NULL;
@@ -43,17 +41,13 @@ struct servent *getservbyname(const char *name, const char *proto) {
     se0.s_proto = localproto;
     ptr0 = &se0;
   }
-
   if (proto) {
     if (!memccpy(localproto, proto, '\0', DNS_NAME_MAX)) return NULL;
   } else
     strcpy(localproto, "");
-
   p = LookupServicesByName(name, ptr0->s_proto, DNS_NAME_MAX, ptr0->s_name,
                            DNS_NAME_MAX, NULL);
   if (p == -1) return NULL;
-
   ptr0->s_port = htons(p);
-
   return ptr0;
 }
diff --git a/libc/dns/getservbyport.c b/libc/dns/getservbyport.c
index 891766b7c..091674823 100644
--- a/libc/dns/getservbyport.c
+++ b/libc/dns/getservbyport.c
@@ -23,7 +23,6 @@
 │ OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,        │
 │ ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR        │
 │ OTHER DEALINGS IN THE SOFTWARE.                                              │
-│                                                                              │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/dns/ent.h"
 #include "libc/dns/servicestxt.h"
@@ -34,7 +33,6 @@ struct servent *getservbyport(int port, const char *proto) {
   static struct servent *ptr1, se1;
   static char s_name[DNS_NAME_MAX + 1];
   static char localproto[DNS_NAME_MAX + 1];
-
   if (!ptr1) {
     se1.s_name = s_name;
     if (!(se1.s_aliases = calloc(1, sizeof(char *)))) return NULL;
@@ -42,16 +40,14 @@ struct servent *getservbyport(int port, const char *proto) {
     se1.s_proto = localproto;
     ptr1 = &se1;
   }
-
   if (proto) {
     if (!memccpy(localproto, proto, '\0', DNS_NAME_MAX)) return NULL;
   } else
     strcpy(localproto, "");
-
   if (LookupServicesByPort(ntohs(port), ptr1->s_proto, DNS_NAME_MAX,
-                           ptr1->s_name, DNS_NAME_MAX, NULL) == -1)
+                           ptr1->s_name, DNS_NAME_MAX, NULL) == -1) {
     return NULL;
-
+  }
   ptr1->s_port = port;
   return ptr1;
 }
diff --git a/libc/dns/herror.c b/libc/dns/herror.c
index fc11db00b..7b9480714 100644
--- a/libc/dns/herror.c
+++ b/libc/dns/herror.c
@@ -23,11 +23,10 @@
 │ OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,        │
 │ ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR        │
 │ OTHER DEALINGS IN THE SOFTWARE.                                              │
-│                                                                              │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/dns/ent.h"
 
-int h_errno = 0;
+int h_errno;
 
 void herror(const char *s) {
 }
diff --git a/libc/dns/hostent.c b/libc/dns/hostent.c
index b376c6ac0..86f98f129 100644
--- a/libc/dns/hostent.c
+++ b/libc/dns/hostent.c
@@ -23,7 +23,6 @@
 │ OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,        │
 │ ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR        │
 │ OTHER DEALINGS IN THE SOFTWARE.                                              │
-│                                                                              │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/dns/ent.h"
 
diff --git a/libc/dns/prototxt.c b/libc/dns/lookupprotobyname.c
similarity index 64%
rename from libc/dns/prototxt.c
rename to libc/dns/lookupprotobyname.c
index e974ab442..921cf371d 100644
--- a/libc/dns/prototxt.c
+++ b/libc/dns/lookupprotobyname.c
@@ -23,103 +23,12 @@
 │ OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,        │
 │ ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR        │
 │ OTHER DEALINGS IN THE SOFTWARE.                                              │
-│                                                                              │
 ╚─────────────────────────────────────────────────────────────────────────────*/
-#include "libc/dns/prototxt.h"
-
 #include "libc/bits/safemacros.internal.h"
-#include "libc/dce.h"
+#include "libc/dns/prototxt.h"
 #include "libc/errno.h"
 #include "libc/fmt/conv.h"
-#include "libc/fmt/fmt.h"
 #include "libc/macros.internal.h"
-#include "libc/mem/mem.h"
-#include "libc/nt/systeminfo.h"
-#include "libc/runtime/runtime.h"
-#include "libc/str/str.h"
-
-static textwindows noinline char *GetNtProtocolsTxtPath(char *pathbuf,
-                                                        uint32_t size) {
-  /* protocol, not plural */
-  const char *const kWinHostsPath = "\\drivers\\etc\\protocol";
-  uint32_t len = GetSystemDirectoryA(&pathbuf[0], size);
-  if (len && len + strlen(kWinHostsPath) + 1 < size) {
-    if (pathbuf[len] == '\\') pathbuf[len--] = '\0';
-    memcpy(&pathbuf[len], kWinHostsPath, strlen(kWinHostsPath) + 1);
-    return &pathbuf[0];
-  } else {
-    return NULL;
-  }
-}
-
-/**
- * Opens and searches /etc/protocols to find name for a given number.
- *
- * format of /etc/protocols is like this:
- *
- * # comment
- * # NAME           PROTOCOL        ALIASES
- * ip               0               IP
- * icmp             1               ICMP
- *
- * @param protonum is the protocol number
- * @param buf is a buffer to store the official name of the protocol
- * @param bufsize is the size of buf
- * @param filepath is the location of the protocols file
- *          (if NULL, uses /etc/protocols)
- * @return 0 on success, -1 on error
- *
- * @note aliases are not read from the file.
- */
-int LookupProtoByNumber(const int protonum, char *buf, size_t bufsize,
-                        const char *filepath) {
-  FILE *f;
-  char *line;
-  char pathbuf[PATH_MAX];
-  const char *path;
-  size_t linesize;
-  int found;
-  char *name, *number, *comment, *tok;
-
-  if (!(path = filepath)) {
-    path = "/etc/protocols";
-    if (IsWindows()) {
-      path =
-          firstnonnull(GetNtProtocolsTxtPath(pathbuf, ARRAYLEN(pathbuf)), path);
-    }
-  }
-
-  if (bufsize == 0 || !(f = fopen(path, "r"))) {
-    return -1;
-  }
-  line = NULL;
-  linesize = 0;
-  found = 0;
-
-  while (found == 0 && (getline(&line, &linesize, f)) != -1) {
-    if ((comment = strchr(line, '#'))) *comment = '\0';
-    name = strtok_r(line, " \t\r\n\v", &tok);
-    number = strtok_r(NULL, " \t\r\n\v", &tok);
-    if (name && number && protonum == atoi(number)) {
-      if (!memccpy(buf, name, '\0', bufsize)) {
-        strcpy(buf, "");
-        break;
-      }
-      found = 1;
-    }
-  }
-  free(line);
-
-  if (ferror(f)) {
-    errno = ferror(f);
-    return -1;
-  }
-  fclose(f);
-
-  if (!found) return -1;
-
-  return 0;
-}
 
 /**
  * Opens and searches /etc/protocols to find number for a given name.
@@ -144,7 +53,6 @@ int LookupProtoByName(const char *protoname, char *buf, size_t bufsize,
   size_t linesize;
   int found, result;
   char *name, *number, *alias, *comment, *tok;
-
   if (!(path = filepath)) {
     path = "/etc/protocols";
     if (IsWindows()) {
@@ -152,7 +60,6 @@ int LookupProtoByName(const char *protoname, char *buf, size_t bufsize,
           firstnonnull(GetNtProtocolsTxtPath(pathbuf, ARRAYLEN(pathbuf)), path);
     }
   }
-
   if (bufsize == 0 || !(f = fopen(path, "r"))) {
     return -1;
   }
@@ -160,7 +67,6 @@ int LookupProtoByName(const char *protoname, char *buf, size_t bufsize,
   linesize = 0;
   found = 0;
   result = -1;
-
   while (found == 0 && (getline(&line, &linesize, f)) != -1) {
     if ((comment = strchr(line, '#'))) *comment = '\0';
     name = strtok_r(line, " \t\r\n\v", &tok);
@@ -169,7 +75,6 @@ int LookupProtoByName(const char *protoname, char *buf, size_t bufsize,
       alias = name;
       while (alias && strcasecmp(alias, protoname) != 0)
         alias = strtok_r(NULL, " \t\r\n\v", &tok);
-
       if (alias) /* alias matched with protoname */
       {
         if (!memccpy(buf, name, '\0', bufsize)) {
@@ -182,14 +87,11 @@ int LookupProtoByName(const char *protoname, char *buf, size_t bufsize,
     }
   }
   free(line);
-
   if (ferror(f)) {
     errno = ferror(f);
     return -1;
   }
   fclose(f);
-
   if (!found) return -1;
-
   return result;
 }
diff --git a/libc/dns/lookupprotobynumber.c b/libc/dns/lookupprotobynumber.c
new file mode 100644
index 000000000..c543b047c
--- /dev/null
+++ b/libc/dns/lookupprotobynumber.c
@@ -0,0 +1,93 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ This is free and unencumbered software released into the public domain.      │
+│                                                                              │
+│ Anyone is free to copy, modify, publish, use, compile, sell, or              │
+│ distribute this software, either in source code form or as a compiled        │
+│ binary, for any purpose, commercial or non-commercial, and by any            │
+│ means.                                                                       │
+│                                                                              │
+│ In jurisdictions that recognize copyright laws, the author or authors        │
+│ of this software dedicate any and all copyright interest in the              │
+│ software to the public domain. We make this dedication for the benefit       │
+│ of the public at large and to the detriment of our heirs and                 │
+│ successors. We intend this dedication to be an overt act of                  │
+│ relinquishment in perpetuity of all present and future rights to this        │
+│ software under copyright law.                                                │
+│                                                                              │
+│ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,              │
+│ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF           │
+│ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.       │
+│ IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR            │
+│ OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,        │
+│ ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR        │
+│ OTHER DEALINGS IN THE SOFTWARE.                                              │
+╚─────────────────────────────────────────────────────────────────────────────*/
+#include "libc/bits/safemacros.internal.h"
+#include "libc/dns/prototxt.h"
+#include "libc/errno.h"
+#include "libc/fmt/conv.h"
+#include "libc/macros.internal.h"
+
+/**
+ * Opens and searches /etc/protocols to find name for a given number.
+ *
+ * The format of /etc/protocols is like this:
+ *
+ *     # comment
+ *     # NAME           PROTOCOL        ALIASES
+ *     ip               0               IP
+ *     icmp             1               ICMP
+ *
+ * @param protonum is the protocol number
+ * @param buf is a buffer to store the official name of the protocol
+ * @param bufsize is the size of buf
+ * @param filepath is the location of the protocols file
+ *          (if NULL, uses /etc/protocols)
+ * @return 0 on success, -1 on error
+ * @note aliases are not read from the file.
+ */
+int LookupProtoByNumber(const int protonum, char *buf, size_t bufsize,
+                        const char *filepath) {
+  FILE *f;
+  char *line;
+  char pathbuf[PATH_MAX];
+  const char *path;
+  size_t linesize;
+  int found;
+  char *name, *number, *comment, *tok;
+  if (!(path = filepath)) {
+    path = "/etc/protocols";
+    if (IsWindows()) {
+      path =
+          firstnonnull(GetNtProtocolsTxtPath(pathbuf, ARRAYLEN(pathbuf)), path);
+    }
+  }
+  if (bufsize == 0 || !(f = fopen(path, "r"))) {
+    return -1;
+  }
+  line = NULL;
+  linesize = 0;
+  found = 0;
+  while (found == 0 && (getline(&line, &linesize, f)) != -1) {
+    if ((comment = strchr(line, '#'))) *comment = '\0';
+    name = strtok_r(line, " \t\r\n\v", &tok);
+    number = strtok_r(NULL, " \t\r\n\v", &tok);
+    if (name && number && protonum == atoi(number)) {
+      if (!memccpy(buf, name, '\0', bufsize)) {
+        strcpy(buf, "");
+        break;
+      }
+      found = 1;
+    }
+  }
+  free(line);
+  if (ferror(f)) {
+    errno = ferror(f);
+    return -1;
+  }
+  fclose(f);
+  if (!found) return -1;
+  return 0;
+}
diff --git a/libc/dns/servicestxt.c b/libc/dns/lookupservicesbyname.c
similarity index 62%
rename from libc/dns/servicestxt.c
rename to libc/dns/lookupservicesbyname.c
index 24742066a..ffefbf45c 100644
--- a/libc/dns/servicestxt.c
+++ b/libc/dns/lookupservicesbyname.c
@@ -23,117 +23,12 @@
 │ OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,        │
 │ ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR        │
 │ OTHER DEALINGS IN THE SOFTWARE.                                              │
-│                                                                              │
 ╚─────────────────────────────────────────────────────────────────────────────*/
-#include "libc/dns/servicestxt.h"
-
 #include "libc/bits/safemacros.internal.h"
-#include "libc/dce.h"
+#include "libc/dns/servicestxt.h"
 #include "libc/errno.h"
 #include "libc/fmt/conv.h"
-#include "libc/fmt/fmt.h"
 #include "libc/macros.internal.h"
-#include "libc/mem/mem.h"
-#include "libc/nt/systeminfo.h"
-#include "libc/runtime/runtime.h"
-#include "libc/str/str.h"
-
-static textwindows noinline char *GetNtServicesTxtPath(char *pathbuf,
-                                                       uint32_t size) {
-  const char *const kWinHostsPath = "\\drivers\\etc\\services";
-  uint32_t len = GetSystemDirectoryA(&pathbuf[0], size);
-  if (len && len + strlen(kWinHostsPath) + 1 < size) {
-    if (pathbuf[len] == '\\') pathbuf[len--] = '\0';
-    memcpy(&pathbuf[len], kWinHostsPath, strlen(kWinHostsPath) + 1);
-    return &pathbuf[0];
-  } else {
-    return NULL;
-  }
-}
-
-/**
- * Opens and searches /etc/services to find name for a given port.
- *
- * format of /etc/services is like this:
- *
- * # comment
- * # NAME       PORT/PROTOCOL       ALIASES
- * ftp          21/tcp
- * fsp          21/udp              fspd
- * ssh          22/tcp
- *
- * @param servport is the port number
- * @param servproto is a NULL-terminated string (eg "tcp", "udp")
- *          (if servproto is an empty string,
- *           if is filled with the first matching
- *           protocol)
- * @param servprotolen the size of servproto
- * @param buf is a buffer to store the official name of the service
- * @param bufsize is the size of buf
- * @param filepath is the location of the services file
- *          (if NULL, uses /etc/services)
- * @return 0 on success, -1 on error
- *
- * @note aliases are not read from the file.
- */
-int LookupServicesByPort(const int servport, char *servproto,
-                         size_t servprotolen, char *buf, size_t bufsize,
-                         const char *filepath) {
-  FILE *f;
-  char *line;
-  char pathbuf[PATH_MAX];
-  const char *path;
-  size_t linesize;
-  int found;
-  char *name, *port, *proto, *comment, *tok;
-
-  if (!(path = filepath)) {
-    path = "/etc/services";
-    if (IsWindows()) {
-      path =
-          firstnonnull(GetNtServicesTxtPath(pathbuf, ARRAYLEN(pathbuf)), path);
-    }
-  }
-
-  if (servprotolen == 0 || bufsize == 0 || !(f = fopen(path, "r"))) {
-    return -1;
-  }
-  line = NULL;
-  linesize = 0;
-  found = 0;
-  strcpy(buf, "");
-
-  while (found == 0 && (getline(&line, &linesize, f)) != -1) {
-    if ((comment = strchr(line, '#'))) *comment = '\0';
-    name = strtok_r(line, " \t\r\n\v", &tok);
-    port = strtok_r(NULL, "/ \t\r\n\v", &tok);
-    proto = strtok_r(NULL, " \t\r\n\v", &tok);
-    if (name && port && proto && servport == atoi(port)) {
-      if (!servproto[0] || strncasecmp(proto, servproto, servprotolen) == 0) {
-        if (!servproto[0] && !memccpy(servproto, proto, '\0', servprotolen)) {
-          strcpy(servproto, "");
-          break;
-        }
-        if (!memccpy(buf, name, '\0', bufsize)) {
-          strcpy(buf, "");
-          break;
-        }
-        found = 1;
-      }
-    }
-  }
-  free(line);
-
-  if (ferror(f)) {
-    errno = ferror(f);
-    return -1;
-  }
-  fclose(f);
-
-  if (!found) return -1;
-
-  return 0;
-}
 
 /**
  * Opens and searches /etc/services to find port for a given name.
@@ -149,9 +44,7 @@ int LookupServicesByPort(const int servport, char *servproto,
  * @param bufsize is the size of buf
  * @param filepath is the location of services file
  *          (if NULL, uses /etc/services)
- * @return -1 on error, or
- *          positive port number
- *
+ * @return -1 on error, or positive port number
  * @note aliases are read from file for comparison, but not returned.
  * @see LookupServicesByPort
  */
@@ -165,7 +58,6 @@ int LookupServicesByName(const char *servname, char *servproto,
   size_t linesize;
   int found, result;
   char *name, *port, *proto, *alias, *comment, *tok;
-
   if (!(path = filepath)) {
     path = "/etc/services";
     if (IsWindows()) {
@@ -173,7 +65,6 @@ int LookupServicesByName(const char *servname, char *servproto,
           firstnonnull(GetNtServicesTxtPath(pathbuf, ARRAYLEN(pathbuf)), path);
     }
   }
-
   if (servprotolen == 0 || !(f = fopen(path, "r"))) {
     return -1;
   }
@@ -182,7 +73,6 @@ int LookupServicesByName(const char *servname, char *servproto,
   found = 0;
   result = -1;
   if (buf && bufsize != 0) strcpy(buf, "");
-
   while (found == 0 && (getline(&line, &linesize, f)) != -1) {
     if ((comment = strchr(line, '#'))) *comment = '\0';
     name = strtok_r(line, " \t\r\n\v", &tok);
@@ -192,7 +82,6 @@ int LookupServicesByName(const char *servname, char *servproto,
       alias = name;
       while (alias && strcasecmp(alias, servname) != 0)
         alias = strtok_r(NULL, " \t\r\n\v", &tok);
-
       if (alias) /* alias matched with servname */
       {
         if (!servproto[0] || strncasecmp(proto, servproto, servprotolen) == 0) {
@@ -211,14 +100,11 @@ int LookupServicesByName(const char *servname, char *servproto,
     }
   }
   free(line);
-
   if (ferror(f)) {
     errno = ferror(f);
     return -1;
   }
   fclose(f);
-
   if (!found) return -1;
-
   return result;
 }
diff --git a/libc/dns/lookupservicesbyport.c b/libc/dns/lookupservicesbyport.c
new file mode 100644
index 000000000..4fa9a364c
--- /dev/null
+++ b/libc/dns/lookupservicesbyport.c
@@ -0,0 +1,108 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ This is free and unencumbered software released into the public domain.      │
+│                                                                              │
+│ Anyone is free to copy, modify, publish, use, compile, sell, or              │
+│ distribute this software, either in source code form or as a compiled        │
+│ binary, for any purpose, commercial or non-commercial, and by any            │
+│ means.                                                                       │
+│                                                                              │
+│ In jurisdictions that recognize copyright laws, the author or authors        │
+│ of this software dedicate any and all copyright interest in the              │
+│ software to the public domain. We make this dedication for the benefit       │
+│ of the public at large and to the detriment of our heirs and                 │
+│ successors. We intend this dedication to be an overt act of                  │
+│ relinquishment in perpetuity of all present and future rights to this        │
+│ software under copyright law.                                                │
+│                                                                              │
+│ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,              │
+│ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF           │
+│ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.       │
+│ IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR            │
+│ OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,        │
+│ ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR        │
+│ OTHER DEALINGS IN THE SOFTWARE.                                              │
+╚─────────────────────────────────────────────────────────────────────────────*/
+#include "libc/bits/safemacros.internal.h"
+#include "libc/dns/servicestxt.h"
+#include "libc/errno.h"
+#include "libc/fmt/conv.h"
+#include "libc/macros.internal.h"
+
+/**
+ * Opens and searches /etc/services to find name for a given port.
+ *
+ * The format of /etc/services is like this:
+ *
+ *     # comment
+ *     # NAME       PORT/PROTOCOL       ALIASES
+ *     ftp          21/tcp
+ *     fsp          21/udp              fspd
+ *     ssh          22/tcp
+ *
+ * @param servport is the port number
+ * @param servproto is a NULL-terminated string (eg "tcp", "udp")
+ *          (if servproto is an empty string,
+ *           if is filled with the first matching
+ *           protocol)
+ * @param servprotolen the size of servproto
+ * @param buf is a buffer to store the official name of the service
+ * @param bufsize is the size of buf
+ * @param filepath is the location of the services file
+ *          (if NULL, uses /etc/services)
+ * @return 0 on success, -1 on error
+ * @note aliases are not read from the file.
+ */
+int LookupServicesByPort(const int servport, char *servproto,
+                         size_t servprotolen, char *buf, size_t bufsize,
+                         const char *filepath) {
+  FILE *f;
+  char *line;
+  char pathbuf[PATH_MAX];
+  const char *path;
+  size_t linesize;
+  int found;
+  char *name, *port, *proto, *comment, *tok;
+  if (!(path = filepath)) {
+    path = "/etc/services";
+    if (IsWindows()) {
+      path =
+          firstnonnull(GetNtServicesTxtPath(pathbuf, ARRAYLEN(pathbuf)), path);
+    }
+  }
+  if (servprotolen == 0 || bufsize == 0 || !(f = fopen(path, "r"))) {
+    return -1;
+  }
+  line = NULL;
+  linesize = 0;
+  found = 0;
+  strcpy(buf, "");
+  while (found == 0 && (getline(&line, &linesize, f)) != -1) {
+    if ((comment = strchr(line, '#'))) *comment = '\0';
+    name = strtok_r(line, " \t\r\n\v", &tok);
+    port = strtok_r(NULL, "/ \t\r\n\v", &tok);
+    proto = strtok_r(NULL, " \t\r\n\v", &tok);
+    if (name && port && proto && servport == atoi(port)) {
+      if (!servproto[0] || strncasecmp(proto, servproto, servprotolen) == 0) {
+        if (!servproto[0] && !memccpy(servproto, proto, '\0', servprotolen)) {
+          strcpy(servproto, "");
+          break;
+        }
+        if (!memccpy(buf, name, '\0', bufsize)) {
+          strcpy(buf, "");
+          break;
+        }
+        found = 1;
+      }
+    }
+  }
+  free(line);
+  if (ferror(f)) {
+    errno = ferror(f);
+    return -1;
+  }
+  fclose(f);
+  if (!found) return -1;
+  return 0;
+}
diff --git a/libc/dns/netent.c b/libc/dns/netent.c
index abca500f0..f534c6a58 100644
--- a/libc/dns/netent.c
+++ b/libc/dns/netent.c
@@ -23,7 +23,6 @@
 │ OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,        │
 │ ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR        │
 │ OTHER DEALINGS IN THE SOFTWARE.                                              │
-│                                                                              │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/dns/ent.h"
 
diff --git a/libc/dns/protoent.c b/libc/dns/protoent.c
index bcc35c254..c03ff56ad 100644
--- a/libc/dns/protoent.c
+++ b/libc/dns/protoent.c
@@ -23,7 +23,6 @@
 │ OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,        │
 │ ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR        │
 │ OTHER DEALINGS IN THE SOFTWARE.                                              │
-│                                                                              │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/dns/ent.h"
 
diff --git a/libc/dns/prototxt.h b/libc/dns/prototxt.h
index 0b6d6f9ba..61d19a228 100644
--- a/libc/dns/prototxt.h
+++ b/libc/dns/prototxt.h
@@ -2,7 +2,6 @@
 #define COSMOPOLITAN_LIBC_DNS_PROTOTXT_H_
 #include "libc/sock/sock.h"
 #include "libc/stdio/stdio.h"
-
 #if !(__ASSEMBLER__ + __LINKER__ + 0)
 COSMOPOLITAN_C_START_
 
@@ -10,6 +9,7 @@ int LookupProtoByNumber(const int, char *, size_t, const char *)
     paramsnonnull((2));
 int LookupProtoByName(const char *, char *, size_t, const char *)
     paramsnonnull((1, 2));
+char *GetNtProtocolsTxtPath(char *, uint32_t);
 
 /* TODO: implement like struct HostsTxt? */
 
diff --git a/libc/dns/resolvednsreverse.c b/libc/dns/resolvednsreverse.c
index a0efe532e..146e1c479 100644
--- a/libc/dns/resolvednsreverse.c
+++ b/libc/dns/resolvednsreverse.c
@@ -23,7 +23,6 @@
 │ OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,        │
 │ ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR        │
 │ OTHER DEALINGS IN THE SOFTWARE.                                              │
-│                                                                              │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/bits/bits.h"
 #include "libc/calls/calls.h"
@@ -52,7 +51,6 @@
  * @param name is a reversed IP address string ending with .in-addr.arpa
  * @param buf to store the obtained hostname if any
  * @param bufsize is size of buf
- *
  * @return 0 on success, or -1 w/ errno
  * @error EAFNOSUPPORT, ENETDOWN, ENAMETOOLONG, EBADMSG
  */
@@ -63,7 +61,6 @@ int ResolveDnsReverse(const struct ResolvConf *resolvconf, int af,
   struct DnsHeader h, h2;
   uint8_t *p, *pe, msg[512];
   uint16_t rtype, rclass, rdlength;
-
   if (af != AF_INET && af != AF_UNSPEC) return eafnosupport();
   if (!resolvconf->nameservers.i) return 0;
   memset(&h, 0, sizeof(h));
@@ -76,7 +73,6 @@ int ResolveDnsReverse(const struct ResolvConf *resolvconf, int af,
   q.qclass = DNS_CLASS_IN;
   memset(msg, 0, sizeof(msg));
   SerializeDnsHeader(msg, &h);
-
   if ((n = SerializeDnsQuestion(msg + 12, 500, &q)) == -1) return -1;
   if ((fd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) == -1) return -1;
   if (sendto(fd, msg, 12 + n, 0, resolvconf->nameservers.p,
@@ -103,7 +99,6 @@ int ResolveDnsReverse(const struct ResolvConf *resolvconf, int af,
             rclass = READ16BE(p), p += 2;
             /* ttl */ p += 4;
             rdlength = READ16BE(p), p += 2;
-
             if (p + rdlength <= pe && rtype == DNS_TYPE_PTR &&
                 rclass == DNS_CLASS_IN) {
               if (strnlen((char *)p, pe - p) + 1 > bufsize)
diff --git a/libc/dns/servent.c b/libc/dns/servent.c
index 8df8d3332..73a3d29a8 100644
--- a/libc/dns/servent.c
+++ b/libc/dns/servent.c
@@ -23,7 +23,6 @@
 │ OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,        │
 │ ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR        │
 │ OTHER DEALINGS IN THE SOFTWARE.                                              │
-│                                                                              │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/dns/ent.h"
 
diff --git a/libc/dns/servicestxt.h b/libc/dns/servicestxt.h
index 28e69eb37..2bd39dd28 100644
--- a/libc/dns/servicestxt.h
+++ b/libc/dns/servicestxt.h
@@ -2,7 +2,6 @@
 #define COSMOPOLITAN_LIBC_DNS_SERVICESTXT_H_
 #include "libc/sock/sock.h"
 #include "libc/stdio/stdio.h"
-
 #if !(__ASSEMBLER__ + __LINKER__ + 0)
 COSMOPOLITAN_C_START_
 
@@ -10,6 +9,7 @@ int LookupServicesByPort(const int, char *, size_t, char *, size_t,
                          const char *) paramsnonnull((2, 4));
 int LookupServicesByName(const char *, char *, size_t, char *, size_t,
                          const char *) paramsnonnull((1, 2));
+char *GetNtServicesTxtPath(char *, uint32_t);
 
 /* TODO: implement like struct HostsTxt? */
 
diff --git a/libc/log/backtrace3.c b/libc/log/backtrace3.c
index 85a1c4982..e0708ad30 100644
--- a/libc/log/backtrace3.c
+++ b/libc/log/backtrace3.c
@@ -33,7 +33,7 @@
 /**
  * Prints stack frames with symbols.
  *
- *   PrintBacktraceUsingSymbols(STDOUT_FILENO, NULL, GetSymbolTable());
+ *     PrintBacktraceUsingSymbols(STDOUT_FILENO, NULL, GetSymbolTable());
  *
  * @param f is output stream
  * @param bp is rbp which can be NULL to detect automatically
diff --git a/libc/log/startfatal.c b/libc/log/startfatal.c
index abecaa951..ad8eadd30 100644
--- a/libc/log/startfatal.c
+++ b/libc/log/startfatal.c
@@ -22,7 +22,6 @@
 #include "libc/log/internal.h"
 #include "libc/runtime/runtime.h"
 #include "libc/str/str.h"
-#include "libc/sysv/consts/fileno.h"
 
 /**
  * Prints initial part of fatal message.
@@ -31,18 +30,21 @@
  * @see __start_fatal_ndebug()
  */
 relegated void __start_fatal(const char *file, int line) {
-  char s[16 + 16 + 16 + 16 + PATH_MAX + 16 + NAME_MAX + 16], *p;
-  p = stpcpy(s, CLS);
-  p = stpcpy(p, RED);
+  bool colorful;
+  char s[16 + 16 + 16 + 16 + PATH_MAX + 16 + NAME_MAX + 16], *p = s;
+  colorful = cancolor();
+  *p++ = '\r';
+  if (colorful) p = stpcpy(p, "\e[J\e[30;101m");
   p = stpcpy(p, "error");
-  p = stpcpy(p, BLUE1);
-  p = stpcpy(p, ":");
+  if (colorful) p = stpcpy(p, "\e[94;49m");
+  *p++ = ':';
   p = stpcpy(p, file);
-  p = stpcpy(p, ":");
+  *p++ = ':';
   p += int64toarray_radix10(line, p);
-  p = stpcpy(p, ":");
+  *p++ = ':';
   p = stpcpy(p, program_invocation_short_name);
-  p = stpcpy(p, RESET);
-  p = stpcpy(p, ": ");
+  if (colorful) p = stpcpy(p, "\e[0m");
+  *p++ = ':';
+  *p++ = ' ';
   write(2, s, p - s);
 }
diff --git a/libc/log/startfatal_ndebug.c b/libc/log/startfatal_ndebug.c
index 6e900b503..6a7d96540 100644
--- a/libc/log/startfatal_ndebug.c
+++ b/libc/log/startfatal_ndebug.c
@@ -16,8 +16,9 @@
 │ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
+#include "libc/calls/calls.h"
 #include "libc/log/color.internal.h"
-#include "libc/runtime/runtime.h"
+#include "libc/log/internal.h"
 #include "libc/stdio/stdio.h"
 
 /**
@@ -27,8 +28,11 @@
  * @see __start_fatal()
  */
 relegated void __start_fatal_ndebug(void) {
-  if (cancolor()) __print_string("\r\e[J");
-  __print_string("error:");
-  __print_string(program_invocation_name);
-  __print_string(": ");
+  char s[16 + 16 + 16 + 16 + PATH_MAX + 16], *p = s;
+  *p++ = '\r';
+  if (cancolor()) p = stpcpy(p, "\e[J");
+  p = stpcpy(p, "error:");
+  p = stpcpy(p, program_invocation_name);
+  p = stpcpy(p, ": ");
+  write(2, s, p - s);
 }
diff --git a/third_party/python/Modules/_asynciomodule.c b/third_party/python/Modules/_asynciomodule.c
index d2c02139c..37666b4c7 100644
--- a/third_party/python/Modules/_asynciomodule.c
+++ b/third_party/python/Modules/_asynciomodule.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/boolobject.h"
 #include "third_party/python/Include/descrobject.h"
diff --git a/third_party/python/Modules/_bisectmodule.c b/third_party/python/Modules/_bisectmodule.c
index e8e0650eb..ba150569d 100644
--- a/third_party/python/Modules/_bisectmodule.c
+++ b/third_party/python/Modules/_bisectmodule.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #define PY_SSIZE_T_CLEAN
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/longobject.h"
diff --git a/third_party/python/Modules/_codecsmodule.c b/third_party/python/Modules/_codecsmodule.c
index 00ca0570e..3179b295c 100644
--- a/third_party/python/Modules/_codecsmodule.c
+++ b/third_party/python/Modules/_codecsmodule.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #define PY_SSIZE_T_CLEAN
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/bytesobject.h"
diff --git a/third_party/python/Modules/_cryptmodule.c b/third_party/python/Modules/_cryptmodule.c
index edfa461a2..294e824b5 100644
--- a/third_party/python/Modules/_cryptmodule.c
+++ b/third_party/python/Modules/_cryptmodule.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/modsupport.h"
 #include "third_party/python/Include/object.h"
 #include "third_party/python/Include/pymacro.h"
diff --git a/third_party/python/Modules/_curses_panel.c b/third_party/python/Modules/_curses_panel.c
index 6b8ef4fd4..0856b9a4c 100644
--- a/third_party/python/Modules/_curses_panel.c
+++ b/third_party/python/Modules/_curses_panel.c
@@ -1,4 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
+
 /*
  *   Interface to the ncurses panel library
  *
diff --git a/third_party/python/Modules/_datetimemodule.c b/third_party/python/Modules/_datetimemodule.c
index c3bd82242..ec621a707 100644
--- a/third_party/python/Modules/_datetimemodule.c
+++ b/third_party/python/Modules/_datetimemodule.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/assert.h"
 #include "libc/calls/weirdtypes.h"
 #include "libc/fmt/fmt.h"
diff --git a/third_party/python/Modules/_decimal/_decimal.c b/third_party/python/Modules/_decimal/_decimal.c
index 0273e1a89..4ae4dbf7e 100644
--- a/third_party/python/Modules/_decimal/_decimal.c
+++ b/third_party/python/Modules/_decimal/_decimal.c
@@ -1,5 +1,5 @@
 /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
-│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
 ╞══════════════════════════════════════════════════════════════════════════════╡
 │ Copyright (c) 2008-2016 Stefan Krah. All rights reserved.                    │
 │                                                                              │
@@ -27,7 +27,6 @@
 │ OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,            │
 │ EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.                           │
 ╚─────────────────────────────────────────────────────────────────────────────*/
-
 #include "libc/fmt/fmt.h"
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/boolobject.h"
@@ -5946,5 +5945,3 @@ error:
 
     return NULL; /* GCOV_NOT_REACHED */
 }
-
-
diff --git a/third_party/python/Modules/_decimal/libmpdec/basearith.c b/third_party/python/Modules/_decimal/libmpdec/basearith.c
index 43d3e7fb2..e0fc20f3c 100644
--- a/third_party/python/Modules/_decimal/libmpdec/basearith.c
+++ b/third_party/python/Modules/_decimal/libmpdec/basearith.c
@@ -1,5 +1,5 @@
 /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
-│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
 ╞══════════════════════════════════════════════════════════════════════════════╡
 │ Copyright (c) 2008-2016 Stefan Krah. All rights reserved.                    │
 │                                                                              │
@@ -654,6 +654,3 @@ _mpd_shortdiv_b(mpd_uint_t *w, const mpd_uint_t *u, mpd_size_t n,
 
     return rem;
 }
-
-
-
diff --git a/third_party/python/Modules/_decimal/libmpdec/constants.c b/third_party/python/Modules/_decimal/libmpdec/constants.c
index 52a7f79b4..198843794 100644
--- a/third_party/python/Modules/_decimal/libmpdec/constants.c
+++ b/third_party/python/Modules/_decimal/libmpdec/constants.c
@@ -1,5 +1,5 @@
 /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
-│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
 ╞══════════════════════════════════════════════════════════════════════════════╡
 │ Copyright (c) 2008-2016 Stefan Krah. All rights reserved.                    │
 │                                                                              │
@@ -133,5 +133,3 @@ const char *mpd_clamp_string[MPD_CLAMP_GUARD] = {
     "CLAMP_DEFAULT",
     "CLAMP_IEEE_754"
 };
-
-
diff --git a/third_party/python/Modules/_decimal/libmpdec/context.c b/third_party/python/Modules/_decimal/libmpdec/context.c
index edf09c9df..082174bde 100644
--- a/third_party/python/Modules/_decimal/libmpdec/context.c
+++ b/third_party/python/Modules/_decimal/libmpdec/context.c
@@ -1,5 +1,5 @@
 /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
-│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
 ╞══════════════════════════════════════════════════════════════════════════════╡
 │ Copyright (c) 2008-2016 Stefan Krah. All rights reserved.                    │
 │                                                                              │
@@ -287,5 +287,3 @@ mpd_addstatus_raise(mpd_context_t *ctx, uint32_t flags)
         mpd_traphandler(ctx);
     }
 }
-
-
diff --git a/third_party/python/Modules/_decimal/libmpdec/convolute.c b/third_party/python/Modules/_decimal/libmpdec/convolute.c
index e501c3508..fe0b2dac5 100644
--- a/third_party/python/Modules/_decimal/libmpdec/convolute.c
+++ b/third_party/python/Modules/_decimal/libmpdec/convolute.c
@@ -1,5 +1,5 @@
 /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
-│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
 ╞══════════════════════════════════════════════════════════════════════════════╡
 │ Copyright (c) 2008-2016 Stefan Krah. All rights reserved.                    │
 │                                                                              │
@@ -176,5 +176,3 @@ fnt_autoconvolute(mpd_uint_t *c1, mpd_size_t n, int modnum)
 
     return 1;
 }
-
-
diff --git a/third_party/python/Modules/_decimal/libmpdec/crt.c b/third_party/python/Modules/_decimal/libmpdec/crt.c
index 02261b4a5..f0908e0f7 100644
--- a/third_party/python/Modules/_decimal/libmpdec/crt.c
+++ b/third_party/python/Modules/_decimal/libmpdec/crt.c
@@ -1,5 +1,5 @@
 /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
-│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
 ╞══════════════════════════════════════════════════════════════════════════════╡
 │ Copyright (c) 2008-2016 Stefan Krah. All rights reserved.                    │
 │                                                                              │
diff --git a/third_party/python/Modules/_decimal/libmpdec/difradix2.c b/third_party/python/Modules/_decimal/libmpdec/difradix2.c
index 27cf79557..d34bbe3c5 100644
--- a/third_party/python/Modules/_decimal/libmpdec/difradix2.c
+++ b/third_party/python/Modules/_decimal/libmpdec/difradix2.c
@@ -1,5 +1,5 @@
 /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
-│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
 ╞══════════════════════════════════════════════════════════════════════════════╡
 │ Copyright (c) 2008-2016 Stefan Krah. All rights reserved.                    │
 │                                                                              │
@@ -174,5 +174,3 @@ fnt_dif2(mpd_uint_t a[], mpd_size_t n, struct fnt_params *tparams)
 
     bitreverse_permute(a, n);
 }
-
-
diff --git a/third_party/python/Modules/_decimal/libmpdec/fnt.c b/third_party/python/Modules/_decimal/libmpdec/fnt.c
index 5e319e7cb..6b36e3120 100644
--- a/third_party/python/Modules/_decimal/libmpdec/fnt.c
+++ b/third_party/python/Modules/_decimal/libmpdec/fnt.c
@@ -1,5 +1,5 @@
 /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
-│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
 ╞══════════════════════════════════════════════════════════════════════════════╡
 │ Copyright (c) 2008-2016 Stefan Krah. All rights reserved.                    │
 │                                                                              │
@@ -81,6 +81,3 @@ std_inv_fnt(mpd_uint_t *a, mpd_size_t n, int modnum)
     mpd_free(tparams);
     return 1;
 }
-
-
-
diff --git a/third_party/python/Modules/_decimal/libmpdec/fourstep.c b/third_party/python/Modules/_decimal/libmpdec/fourstep.c
index af99282b5..ec5cb6e5c 100644
--- a/third_party/python/Modules/_decimal/libmpdec/fourstep.c
+++ b/third_party/python/Modules/_decimal/libmpdec/fourstep.c
@@ -1,5 +1,5 @@
 /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
-│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
 ╞══════════════════════════════════════════════════════════════════════════════╡
 │ Copyright (c) 2008-2016 Stefan Krah. All rights reserved.                    │
 │                                                                              │
@@ -259,5 +259,3 @@ inv_four_step_fnt(mpd_uint_t *a, mpd_size_t n, int modnum)
 
     return 1;
 }
-
-
diff --git a/third_party/python/Modules/_decimal/libmpdec/io.c b/third_party/python/Modules/_decimal/libmpdec/io.c
index 18835260c..4a91a02f8 100644
--- a/third_party/python/Modules/_decimal/libmpdec/io.c
+++ b/third_party/python/Modules/_decimal/libmpdec/io.c
@@ -1,5 +1,5 @@
 /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
-│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
 ╞══════════════════════════════════════════════════════════════════════════════╡
 │ Copyright (c) 2008-2016 Stefan Krah. All rights reserved.                    │
 │                                                                              │
@@ -1581,5 +1581,3 @@ mpd_print(const mpd_t *dec)
         fputs("mpd_fprint: output error\n", stderr); /* GCOV_NOT_REACHED */
     }
 }
-
-
diff --git a/third_party/python/Modules/_decimal/libmpdec/memory.c b/third_party/python/Modules/_decimal/libmpdec/memory.c
index 0fa6f16c3..032c50a5f 100644
--- a/third_party/python/Modules/_decimal/libmpdec/memory.c
+++ b/third_party/python/Modules/_decimal/libmpdec/memory.c
@@ -1,5 +1,5 @@
 /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
-│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
 ╞══════════════════════════════════════════════════════════════════════════════╡
 │ Copyright (c) 2008-2016 Stefan Krah. All rights reserved.                    │
 │                                                                              │
@@ -292,5 +292,3 @@ mpd_realloc_dyn(mpd_t *result, mpd_ssize_t nwords, uint32_t *status)
 
     return 1;
 }
-
-
diff --git a/third_party/python/Modules/_decimal/libmpdec/mpdecimal.c b/third_party/python/Modules/_decimal/libmpdec/mpdecimal.c
index b52e6655d..3f0be0346 100644
--- a/third_party/python/Modules/_decimal/libmpdec/mpdecimal.c
+++ b/third_party/python/Modules/_decimal/libmpdec/mpdecimal.c
@@ -1,5 +1,5 @@
 /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
-│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
 ╞══════════════════════════════════════════════════════════════════════════════╡
 │ Copyright (c) 2008-2016 Stefan Krah. All rights reserved.                    │
 │                                                                              │
@@ -8399,6 +8399,3 @@ mpd_qimport_u32(mpd_t *result,
     mpd_qresize(result, result->len, status);
     mpd_qfinalize(result, ctx, status);
 }
-
-
-
diff --git a/third_party/python/Modules/_decimal/libmpdec/numbertheory.c b/third_party/python/Modules/_decimal/libmpdec/numbertheory.c
index 1681b546a..02a0e15ac 100644
--- a/third_party/python/Modules/_decimal/libmpdec/numbertheory.c
+++ b/third_party/python/Modules/_decimal/libmpdec/numbertheory.c
@@ -1,5 +1,5 @@
 /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
-│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
 ╞══════════════════════════════════════════════════════════════════════════════╡
 │ Copyright (c) 2008-2016 Stefan Krah. All rights reserved.                    │
 │                                                                              │
@@ -133,5 +133,3 @@ _mpd_init_w3table(mpd_uint_t w3table[3], int sign, int modnum)
     w3table[1] = kernel;
     w3table[2] = POWMOD(kernel, 2);
 }
-
-
diff --git a/third_party/python/Modules/_decimal/libmpdec/sixstep.c b/third_party/python/Modules/_decimal/libmpdec/sixstep.c
index 65abc1053..d8a047cc2 100644
--- a/third_party/python/Modules/_decimal/libmpdec/sixstep.c
+++ b/third_party/python/Modules/_decimal/libmpdec/sixstep.c
@@ -1,5 +1,5 @@
 /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
-│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
 ╞══════════════════════════════════════════════════════════════════════════════╡
 │ Copyright (c) 2008-2016 Stefan Krah. All rights reserved.                    │
 │                                                                              │
@@ -214,5 +214,3 @@ inv_six_step_fnt(mpd_uint_t *a, mpd_size_t n, int modnum)
 
     return 1;
 }
-
-
diff --git a/third_party/python/Modules/_decimal/libmpdec/transpose.c b/third_party/python/Modules/_decimal/libmpdec/transpose.c
index 19a81e410..af2199ea5 100644
--- a/third_party/python/Modules/_decimal/libmpdec/transpose.c
+++ b/third_party/python/Modules/_decimal/libmpdec/transpose.c
@@ -1,5 +1,5 @@
 /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
-│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
 ╞══════════════════════════════════════════════════════════════════════════════╡
 │ Copyright (c) 2008-2016 Stefan Krah. All rights reserved.                    │
 │                                                                              │
@@ -274,5 +274,3 @@ transpose_pow2(mpd_uint_t *matrix, mpd_size_t rows, mpd_size_t cols)
 
     return 1;
 }
-
-
diff --git a/third_party/python/Modules/_elementtree.c b/third_party/python/Modules/_elementtree.c
index 1be08c352..5a1c0f931 100644
--- a/third_party/python/Modules/_elementtree.c
+++ b/third_party/python/Modules/_elementtree.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #define PY_SSIZE_T_CLEAN
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/bytesobject.h"
@@ -17,6 +23,7 @@
 #include "third_party/python/Include/structmember.h"
 #include "third_party/python/Include/warnings.h"
 /* clang-format off */
+
 /*--------------------------------------------------------------------
  * Licensed to PSF under a Contributor Agreement.
  * See http://www.python.org/psf/license for licensing details.
diff --git a/third_party/python/Modules/_gdbmmodule.c b/third_party/python/Modules/_gdbmmodule.c
index cf504a572..bc73f87e9 100644
--- a/third_party/python/Modules/_gdbmmodule.c
+++ b/third_party/python/Modules/_gdbmmodule.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
 
 /* DBM module using dictionary interface */
diff --git a/third_party/python/Modules/_heapqmodule.c b/third_party/python/Modules/_heapqmodule.c
index 1d15f0565..d01f62fd8 100644
--- a/third_party/python/Modules/_heapqmodule.c
+++ b/third_party/python/Modules/_heapqmodule.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/assert.h"
 #include "third_party/python/Include/listobject.h"
 #include "third_party/python/Include/modsupport.h"
@@ -13,7 +19,6 @@ annotated by François Pinard, and converted to C by Raymond Hettinger.
 
 */
 
-
 static int
 siftdown(PyListObject *heap, Py_ssize_t startpos, Py_ssize_t pos)
 {
diff --git a/third_party/python/Modules/_io/_iomodule.c b/third_party/python/Modules/_io/_iomodule.c
index a5f760b53..5e761e9c2 100644
--- a/third_party/python/Modules/_io/_iomodule.c
+++ b/third_party/python/Modules/_io/_iomodule.c
@@ -1,5 +1,5 @@
 /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
-│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
 ╞══════════════════════════════════════════════════════════════════════════════╡
 │ Python 3                                                                     │
 │ https://docs.python.org/3/license.html                                       │
@@ -21,6 +21,7 @@
 #include "third_party/python/Include/weakrefobject.h"
 #include "third_party/python/Modules/_io/_iomodule.h"
 /* clang-format off */
+
 /*
     An implementation of the new I/O lib as defined by PEP 3116 - "New I/O"
 
diff --git a/third_party/python/Modules/_io/bufferedio.c b/third_party/python/Modules/_io/bufferedio.c
index a466c5567..e3f4c27fc 100644
--- a/third_party/python/Modules/_io/bufferedio.c
+++ b/third_party/python/Modules/_io/bufferedio.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #define PY_SSIZE_T_CLEAN
 #include "libc/errno.h"
 #include "third_party/python/Include/abstract.h"
diff --git a/third_party/python/Modules/_io/bytesio.c b/third_party/python/Modules/_io/bytesio.c
index ff72ad6fe..cbf25ed97 100644
--- a/third_party/python/Modules/_io/bytesio.c
+++ b/third_party/python/Modules/_io/bytesio.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/assert.h"
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/boolobject.h"
diff --git a/third_party/python/Modules/_io/clinic/textio.inc b/third_party/python/Modules/_io/clinic/textio.inc
index d847d8987..dba53e163 100644
--- a/third_party/python/Modules/_io/clinic/textio.inc
+++ b/third_party/python/Modules/_io/clinic/textio.inc
@@ -1,5 +1,5 @@
 /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
-│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
 ╞══════════════════════════════════════════════════════════════════════════════╡
 │ Python 3                                                                     │
 │ https://docs.python.org/3/license.html                                       │
diff --git a/third_party/python/Modules/_io/fileio.c b/third_party/python/Modules/_io/fileio.c
index af980368b..361666eb8 100644
--- a/third_party/python/Modules/_io/fileio.c
+++ b/third_party/python/Modules/_io/fileio.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #define PY_SSIZE_T_CLEAN
 #include "libc/calls/calls.h"
 #include "libc/errno.h"
diff --git a/third_party/python/Modules/_io/iobase.c b/third_party/python/Modules/_io/iobase.c
index 9e3a45251..84d90ee28 100644
--- a/third_party/python/Modules/_io/iobase.c
+++ b/third_party/python/Modules/_io/iobase.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #define PY_SSIZE_T_CLEAN
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/boolobject.h"
diff --git a/third_party/python/Modules/_io/stringio.c b/third_party/python/Modules/_io/stringio.c
index 780774ea0..12019382c 100644
--- a/third_party/python/Modules/_io/stringio.c
+++ b/third_party/python/Modules/_io/stringio.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #define PY_SSIZE_T_CLEAN
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/accu.h"
diff --git a/third_party/python/Modules/_io/textio.c b/third_party/python/Modules/_io/textio.c
index eff6490a9..469bd38f4 100644
--- a/third_party/python/Modules/_io/textio.c
+++ b/third_party/python/Modules/_io/textio.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #define PY_SSIZE_T_CLEAN
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/boolobject.h"
diff --git a/third_party/python/Modules/_io/winconsoleio.c b/third_party/python/Modules/_io/winconsoleio.c
index 84dd7423f..bdef012a4 100644
--- a/third_party/python/Modules/_io/winconsoleio.c
+++ b/third_party/python/Modules/_io/winconsoleio.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #define PY_SSIZE_T_CLEAN
 #include "third_party/python/Modules/_io/_iomodule.h"
 /* clang-format off */
diff --git a/third_party/python/Modules/_localemodule.c b/third_party/python/Modules/_localemodule.c
index 960387dd4..1754a0588 100644
--- a/third_party/python/Modules/_localemodule.c
+++ b/third_party/python/Modules/_localemodule.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #define PY_SSIZE_T_CLEAN
 #include "libc/unicode/locale.h"
 #include "third_party/python/Include/dictobject.h"
diff --git a/third_party/python/Modules/_lzmamodule.c b/third_party/python/Modules/_lzmamodule.c
index b18aa95d6..0da2a93ab 100644
--- a/third_party/python/Modules/_lzmamodule.c
+++ b/third_party/python/Modules/_lzmamodule.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #define PY_SSIZE_T_CLEAN
 #include "third_party/python/Include/structmember.h"
 /* clang-format off */
diff --git a/third_party/python/Modules/_multiprocessing/multiprocessing.c b/third_party/python/Modules/_multiprocessing/multiprocessing.c
index 104654202..710b64ba9 100644
--- a/third_party/python/Modules/_multiprocessing/multiprocessing.c
+++ b/third_party/python/Modules/_multiprocessing/multiprocessing.c
@@ -1,5 +1,12 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Modules/_multiprocessing/multiprocessing.h"
 /* clang-format off */
+
 /*
  * Extension module used by multiprocessing package
  *
diff --git a/third_party/python/Modules/_multiprocessing/semaphore.c b/third_party/python/Modules/_multiprocessing/semaphore.c
index 5414088d0..a854a11b1 100644
--- a/third_party/python/Modules/_multiprocessing/semaphore.c
+++ b/third_party/python/Modules/_multiprocessing/semaphore.c
@@ -1,5 +1,12 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Modules/_multiprocessing/multiprocessing.h"
 /* clang-format off */
+
 /*
  * A type which wraps a semaphore
  *
diff --git a/third_party/python/Modules/_opcode.c b/third_party/python/Modules/_opcode.c
index 8788d3370..a945f7a71 100644
--- a/third_party/python/Modules/_opcode.c
+++ b/third_party/python/Modules/_opcode.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/compile.h"
 #include "third_party/python/Include/longobject.h"
 #include "third_party/python/Include/modsupport.h"
diff --git a/third_party/python/Modules/_operator.c b/third_party/python/Modules/_operator.c
index 59f932247..49628ef8e 100644
--- a/third_party/python/Modules/_operator.c
+++ b/third_party/python/Modules/_operator.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/boolobject.h"
 #include "third_party/python/Include/dictobject.h"
diff --git a/third_party/python/Modules/_pickle.c b/third_party/python/Modules/_pickle.c
index 793142c3f..7ba727266 100644
--- a/third_party/python/Modules/_pickle.c
+++ b/third_party/python/Modules/_pickle.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/errno.h"
 #include "libc/fmt/conv.h"
 #include "third_party/python/Include/abstract.h"
diff --git a/third_party/python/Modules/_posixsubprocess.c b/third_party/python/Modules/_posixsubprocess.c
index 19af5b68b..0b1ad230d 100644
--- a/third_party/python/Modules/_posixsubprocess.c
+++ b/third_party/python/Modules/_posixsubprocess.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/calls.h"
 #include "libc/calls/weirdtypes.h"
 #include "libc/dce.h"
diff --git a/third_party/python/Modules/_randommodule.c b/third_party/python/Modules/_randommodule.c
index aa43c87a2..dcc2a33ac 100644
--- a/third_party/python/Modules/_randommodule.c
+++ b/third_party/python/Modules/_randommodule.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/calls.h"
 #include "third_party/python/Include/floatobject.h"
 #include "third_party/python/Include/longobject.h"
diff --git a/third_party/python/Modules/_sha3.c b/third_party/python/Modules/_sha3.c
index d8cac112e..31ae55350 100644
--- a/third_party/python/Modules/_sha3.c
+++ b/third_party/python/Modules/_sha3.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/bytesobject.h"
 #include "third_party/python/Include/descrobject.h"
diff --git a/third_party/python/Modules/_sre.c b/third_party/python/Modules/_sre.c
index bc868ee77..650e5120e 100644
--- a/third_party/python/Modules/_sre.c
+++ b/third_party/python/Modules/_sre.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/boolobject.h"
 #include "third_party/python/Include/bytesobject.h"
diff --git a/third_party/python/Modules/_ssl.c b/third_party/python/Modules/_ssl.c
index d065c7c9a..d9c0a298a 100644
--- a/third_party/python/Modules/_ssl.c
+++ b/third_party/python/Modules/_ssl.c
@@ -1,4 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #define PY_SSIZE_T_CLEAN
+#include "third_party/python/Modules/socketmodule.h"
 /* clang-format off */
 
 /* SSL socket module
@@ -39,7 +46,6 @@
 #endif
 
 /* Include symbols from _socket module */
-#include "third_party/python/Modules/socketmodule.h"
 
 static PySocketModule_APIObject PySocketModule;
 
diff --git a/third_party/python/Modules/_stat.c b/third_party/python/Modules/_stat.c
index 7b6b949d5..9a807a24c 100644
--- a/third_party/python/Modules/_stat.c
+++ b/third_party/python/Modules/_stat.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #define PY_SSIZE_T_CLEAN
 #include "libc/calls/calls.h"
 #include "libc/calls/weirdtypes.h"
diff --git a/third_party/python/Modules/_struct.c b/third_party/python/Modules/_struct.c
index 759423321..abba200f9 100644
--- a/third_party/python/Modules/_struct.c
+++ b/third_party/python/Modules/_struct.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #define PY_SSIZE_T_CLEAN
 #include "libc/assert.h"
 #include "third_party/python/Include/abstract.h"
diff --git a/third_party/python/Modules/_testbuffer.c b/third_party/python/Modules/_testbuffer.c
index 489fbecb2..24f4b66e3 100644
--- a/third_party/python/Modules/_testbuffer.c
+++ b/third_party/python/Modules/_testbuffer.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #define PY_SSIZE_T_CLEAN
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/boolobject.h"
diff --git a/third_party/python/Modules/_testcapimodule.c b/third_party/python/Modules/_testcapimodule.c
index 7c3618b3b..683bf206d 100644
--- a/third_party/python/Modules/_testcapimodule.c
+++ b/third_party/python/Modules/_testcapimodule.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #define PY_SSIZE_T_CLEAN
 #undef Py_BUILD_CORE
 #include "libc/calls/calls.h"
diff --git a/third_party/python/Modules/_testimportmultiple.c b/third_party/python/Modules/_testimportmultiple.c
deleted file mode 100644
index 1dc11bd08..000000000
--- a/third_party/python/Modules/_testimportmultiple.c
+++ /dev/null
@@ -1,58 +0,0 @@
-/* clang-format off */
-/*
- * C extensions module to test importing multiple modules from one compiled
- * file (issue16421). This file defines 3 modules (_testimportmodule,
- * foo, bar), only the first one is called the same as the compiled file.
- */
-#include<Python.h>
-
-static struct PyModuleDef _testimportmultiple = {
-    PyModuleDef_HEAD_INIT,
-    "_testimportmultiple",
-    "_testimportmultiple doc",
-    -1,
-    NULL,
-    NULL,
-    NULL,
-    NULL,
-    NULL
-};
-
-PyMODINIT_FUNC PyInit__testimportmultiple(void)
-{
-    return PyModule_Create(&_testimportmultiple);
-}
-
-static struct PyModuleDef _foomodule = {
-    PyModuleDef_HEAD_INIT,
-    "_testimportmultiple_foo",
-    "_testimportmultiple_foo doc",
-    -1,
-    NULL,
-    NULL,
-    NULL,
-    NULL,
-    NULL
-};
-
-PyMODINIT_FUNC PyInit__testimportmultiple_foo(void)
-{
-    return PyModule_Create(&_foomodule);
-}
-
-static struct PyModuleDef _barmodule = {
-    PyModuleDef_HEAD_INIT,
-    "_testimportmultiple_bar",
-    "_testimportmultiple_bar doc",
-    -1,
-    NULL,
-    NULL,
-    NULL,
-    NULL,
-    NULL
-};
-
-PyMODINIT_FUNC PyInit__testimportmultiple_bar(void){
-    return PyModule_Create(&_barmodule);
-}
-
diff --git a/third_party/python/Modules/_testmultiphase.c b/third_party/python/Modules/_testmultiphase.c
index d386bcf8e..8d4f13e14 100644
--- a/third_party/python/Modules/_testmultiphase.c
+++ b/third_party/python/Modules/_testmultiphase.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/dictobject.h"
 #include "third_party/python/Include/longobject.h"
 #include "third_party/python/Include/methodobject.h"
diff --git a/third_party/python/Modules/_threadmodule.c b/third_party/python/Modules/_threadmodule.c
index 50ad09423..007e9b2f1 100644
--- a/third_party/python/Modules/_threadmodule.c
+++ b/third_party/python/Modules/_threadmodule.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/structmember.h"
 /* clang-format off */
 
diff --git a/third_party/python/Modules/_tracemalloc.c b/third_party/python/Modules/_tracemalloc.c
index da772251a..6c8af64a2 100644
--- a/third_party/python/Modules/_tracemalloc.c
+++ b/third_party/python/Modules/_tracemalloc.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/errno.h"
 #include "libc/fmt/conv.h"
 #include "third_party/python/Include/boolobject.h"
diff --git a/third_party/python/Modules/_weakref.c b/third_party/python/Modules/_weakref.c
index 3a497c0c3..6566b0d70 100644
--- a/third_party/python/Modules/_weakref.c
+++ b/third_party/python/Modules/_weakref.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/dictobject.h"
 #include "third_party/python/Include/listobject.h"
 #include "third_party/python/Include/longobject.h"
diff --git a/third_party/python/Modules/_winapi.c b/third_party/python/Modules/_winapi.c
index f4a284434..394231a95 100644
--- a/third_party/python/Modules/_winapi.c
+++ b/third_party/python/Modules/_winapi.c
@@ -1,4 +1,14 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
+#include "third_party/python/Include/Python.h"
+#include "third_party/python/Include/structmember.h"
+#include "third_party/python/Modules/winreparse.h"
 /* clang-format off */
+
 /*
  * Support routines from the Windows API
  *
@@ -35,10 +45,6 @@
 /* Licensed to PSF under a Contributor Agreement. */
 /* See http://www.python.org/2.4/license for licensing details. */
 
-#include "third_party/python/Include/Python.h"
-#include "third_party/python/Include/structmember.h"
-#include "third_party/python/Modules/winreparse.h"
-
 #if defined(MS_WIN32) && !defined(MS_WIN64)
 #define HANDLE_TO_PYNUM(handle) \
     PyLong_FromUnsignedLong((unsigned long) handle)
diff --git a/third_party/python/Modules/arraymodule.c b/third_party/python/Modules/arraymodule.c
index bbffdc312..3ef511438 100644
--- a/third_party/python/Modules/arraymodule.c
+++ b/third_party/python/Modules/arraymodule.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #define PY_SSIZE_T_CLEAN
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/boolobject.h"
diff --git a/third_party/python/Modules/atexitmodule.c b/third_party/python/Modules/atexitmodule.c
index c84722065..088d76516 100644
--- a/third_party/python/Modules/atexitmodule.c
+++ b/third_party/python/Modules/atexitmodule.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/longobject.h"
 #include "third_party/python/Include/modsupport.h"
diff --git a/third_party/python/Modules/audioop.c b/third_party/python/Modules/audioop.c
index d58741f9d..b5adb95d5 100644
--- a/third_party/python/Modules/audioop.c
+++ b/third_party/python/Modules/audioop.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #define PY_SSIZE_T_CLEAN
 #include "libc/math.h"
 #include "third_party/python/Include/dictobject.h"
diff --git a/third_party/python/Modules/binascii.c b/third_party/python/Modules/binascii.c
index 72e6b55e5..00908fe9c 100644
--- a/third_party/python/Modules/binascii.c
+++ b/third_party/python/Modules/binascii.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #define PY_SSIZE_T_CLEAN
 #include "libc/assert.h"
 #include "third_party/python/Include/abstract.h"
@@ -12,6 +18,7 @@
 #include "third_party/python/Include/unicodeobject.h"
 #include "third_party/zlib/zlib.h"
 /* clang-format off */
+
 /*
 ** Routines to represent binary data in ASCII and vice-versa
 **
@@ -153,8 +160,6 @@ static const char table_a2b_base64[] = {
 static const unsigned char table_b2a_base64[] =
 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
 
-
-
 static const unsigned short crctab_hqx[256] = {
     0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7,
     0x8108, 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef,
@@ -1411,11 +1416,9 @@ static struct PyMethodDef binascii_module_methods[] = {
     {NULL, NULL}                             /* sentinel */
 };
 
-
 /* Initialization function for the module (*must* be called PyInit_binascii) */
 PyDoc_STRVAR(doc_binascii, "Conversion between binary data and ASCII");
 
-
 static struct PyModuleDef binasciimodule = {
     PyModuleDef_HEAD_INIT,
     "binascii",
diff --git a/third_party/python/Modules/cjkcodecs/_codecs_cn.c b/third_party/python/Modules/cjkcodecs/_codecs_cn.c
index 2db085637..e0a2b955d 100644
--- a/third_party/python/Modules/cjkcodecs/_codecs_cn.c
+++ b/third_party/python/Modules/cjkcodecs/_codecs_cn.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Modules/cjkcodecs/cjkcodecs.h"
 #include "third_party/python/Modules/cjkcodecs/mappings_cn.inc"
 /* clang-format off */
diff --git a/third_party/python/Modules/cjkcodecs/_codecs_hk.c b/third_party/python/Modules/cjkcodecs/_codecs_hk.c
index 4aba5c9b2..1c1965d0c 100644
--- a/third_party/python/Modules/cjkcodecs/_codecs_hk.c
+++ b/third_party/python/Modules/cjkcodecs/_codecs_hk.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #define USING_IMPORTED_MAPS
 #include "third_party/python/Modules/cjkcodecs/cjkcodecs.h"
 #include "third_party/python/Modules/cjkcodecs/mappings_hk.inc"
diff --git a/third_party/python/Modules/cjkcodecs/_codecs_iso2022.c b/third_party/python/Modules/cjkcodecs/_codecs_iso2022.c
index 82ab9379c..148afd70d 100644
--- a/third_party/python/Modules/cjkcodecs/_codecs_iso2022.c
+++ b/third_party/python/Modules/cjkcodecs/_codecs_iso2022.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
 /*
  * _codecs_iso2022.c: Codecs collection for ISO-2022 encodings.
diff --git a/third_party/python/Modules/cjkcodecs/_codecs_jp.c b/third_party/python/Modules/cjkcodecs/_codecs_jp.c
index a8c6a4b50..91c8c01d0 100644
--- a/third_party/python/Modules/cjkcodecs/_codecs_jp.c
+++ b/third_party/python/Modules/cjkcodecs/_codecs_jp.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
 /*
  * _codecs_jp.c: Codecs collection for Japanese encodings
diff --git a/third_party/python/Modules/cjkcodecs/_codecs_kr.c b/third_party/python/Modules/cjkcodecs/_codecs_kr.c
index 22ca4bc51..757df9e0e 100644
--- a/third_party/python/Modules/cjkcodecs/_codecs_kr.c
+++ b/third_party/python/Modules/cjkcodecs/_codecs_kr.c
@@ -1,4 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
+
 /*
  * _codecs_kr.c: Codecs collection for Korean encodings
  *
diff --git a/third_party/python/Modules/cjkcodecs/multibytecodec.c b/third_party/python/Modules/cjkcodecs/multibytecodec.c
index a44284e0c..56ac3e3f7 100644
--- a/third_party/python/Modules/cjkcodecs/multibytecodec.c
+++ b/third_party/python/Modules/cjkcodecs/multibytecodec.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #define PY_SSIZE_T_CLEAN
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/codecs.h"
diff --git a/third_party/python/Modules/cmathmodule.c b/third_party/python/Modules/cmathmodule.c
index bcfa6b1d0..3249300c2 100644
--- a/third_party/python/Modules/cmathmodule.c
+++ b/third_party/python/Modules/cmathmodule.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/errno.h"
 #include "libc/math.h"
 #include "third_party/python/Include/boolobject.h"
diff --git a/third_party/python/Modules/config.c b/third_party/python/Modules/config.c
index 8bb6d96f4..5fe5324c2 100644
--- a/third_party/python/Modules/config.c
+++ b/third_party/python/Modules/config.c
@@ -1,4 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
+
 /* Generated automatically from ./Modules/config.c.in by makesetup. */
 /* -*- C -*- ***********************************************
 Copyright (c) 2000, BeOpen.com.
diff --git a/third_party/python/Modules/errnomodule.c b/third_party/python/Modules/errnomodule.c
index 65d6b9e48..b7ef78d34 100644
--- a/third_party/python/Modules/errnomodule.c
+++ b/third_party/python/Modules/errnomodule.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/dce.h"
 #include "libc/errno.h"
 #include "third_party/python/Include/dictobject.h"
diff --git a/third_party/python/Modules/faulthandler.c b/third_party/python/Modules/faulthandler.c
index 3e93c8171..854cb7de7 100644
--- a/third_party/python/Modules/faulthandler.c
+++ b/third_party/python/Modules/faulthandler.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/calls.h"
 #include "libc/calls/sigbits.h"
 #include "libc/calls/struct/sigaction.h"
diff --git a/third_party/python/Modules/fcntlmodule.c b/third_party/python/Modules/fcntlmodule.c
index 5990a2153..a73a27155 100644
--- a/third_party/python/Modules/fcntlmodule.c
+++ b/third_party/python/Modules/fcntlmodule.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #define PY_SSIZE_T_CLEAN
 #include "libc/calls/calls.h"
 #include "libc/calls/ioctl.h"
diff --git a/third_party/python/Modules/fpectlmodule.c b/third_party/python/Modules/fpectlmodule.c
index 75a0f50a2..aa24240f7 100644
--- a/third_party/python/Modules/fpectlmodule.c
+++ b/third_party/python/Modules/fpectlmodule.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/runtime/runtime.h"
 #include "third_party/python/Include/dictobject.h"
 #include "third_party/python/Include/methodobject.h"
diff --git a/third_party/python/Modules/fpetestmodule.c b/third_party/python/Modules/fpetestmodule.c
index 5a949c7dd..8ba791c4a 100644
--- a/third_party/python/Modules/fpetestmodule.c
+++ b/third_party/python/Modules/fpetestmodule.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/dictobject.h"
 #include "third_party/python/Include/methodobject.h"
 #include "third_party/python/Include/modsupport.h"
diff --git a/third_party/python/Modules/gcmodule.c b/third_party/python/Modules/gcmodule.c
index 68979e9a9..b9190f049 100644
--- a/third_party/python/Modules/gcmodule.c
+++ b/third_party/python/Modules/gcmodule.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/boolobject.h"
 #include "third_party/python/Include/classobject.h"
diff --git a/third_party/python/Modules/getbuildinfo.c b/third_party/python/Modules/getbuildinfo.c
index a92426c95..426f7ec7c 100644
--- a/third_party/python/Modules/getbuildinfo.c
+++ b/third_party/python/Modules/getbuildinfo.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/pyerrors.h"
 #include "third_party/python/Include/pylifecycle.h"
 /* clang-format off */
diff --git a/third_party/python/Modules/getpath.c b/third_party/python/Modules/getpath.c
index c90fa8779..46b6d0214 100644
--- a/third_party/python/Modules/getpath.c
+++ b/third_party/python/Modules/getpath.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/calls.h"
 #include "libc/calls/struct/stat.h"
 #include "libc/errno.h"
diff --git a/third_party/python/Modules/grpmodule.c b/third_party/python/Modules/grpmodule.c
index 200e96497..7a6a7f951 100644
--- a/third_party/python/Modules/grpmodule.c
+++ b/third_party/python/Modules/grpmodule.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/musl/passwd.h"
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/bytesobject.h"
diff --git a/third_party/python/Modules/hashtable.c b/third_party/python/Modules/hashtable.c
index 5984b9dfc..dae163c91 100644
--- a/third_party/python/Modules/hashtable.c
+++ b/third_party/python/Modules/hashtable.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/pyhash.h"
 #include "third_party/python/Include/pymem.h"
 #include "third_party/python/Modules/hashtable.h"
diff --git a/third_party/python/Modules/itertoolsmodule.c b/third_party/python/Modules/itertoolsmodule.c
index d35bcf244..971462f93 100644
--- a/third_party/python/Modules/itertoolsmodule.c
+++ b/third_party/python/Modules/itertoolsmodule.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #define PY_SSIZE_T_CLEAN
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/boolobject.h"
@@ -13,7 +19,6 @@
    by Raymond D. Hettinger <python@rcn.com>
 */
 
-
 /* groupby object ************************************************************/
 
 typedef struct {
diff --git a/third_party/python/Modules/main.c b/third_party/python/Modules/main.c
index e83d64650..2c00911c3 100644
--- a/third_party/python/Modules/main.c
+++ b/third_party/python/Modules/main.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/calls.h"
 #include "libc/errno.h"
 #include "libc/stdio/stdio.h"
diff --git a/third_party/python/Modules/mathmodule.c b/third_party/python/Modules/mathmodule.c
index 762e6ac47..188dbf345 100644
--- a/third_party/python/Modules/mathmodule.c
+++ b/third_party/python/Modules/mathmodule.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/assert.h"
 #include "libc/errno.h"
 #include "libc/math.h"
diff --git a/third_party/python/Modules/md5module.c b/third_party/python/Modules/md5module.c
index dd02246fe..031e3292b 100644
--- a/third_party/python/Modules/md5module.c
+++ b/third_party/python/Modules/md5module.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/assert.h"
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/bytesobject.h"
diff --git a/third_party/python/Modules/mmapmodule.c b/third_party/python/Modules/mmapmodule.c
index 9420e294b..5fe69aa1b 100644
--- a/third_party/python/Modules/mmapmodule.c
+++ b/third_party/python/Modules/mmapmodule.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #define PY_SSIZE_T_CLEAN
 #include "libc/calls/calls.h"
 #include "libc/calls/weirdtypes.h"
diff --git a/third_party/python/Modules/ossaudiodev.c b/third_party/python/Modules/ossaudiodev.c
index dbe92d7ef..802023832 100644
--- a/third_party/python/Modules/ossaudiodev.c
+++ b/third_party/python/Modules/ossaudiodev.c
@@ -1,6 +1,14 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #define PY_SSIZE_T_CLEAN
+#include "libc/sysv/consts/o.h"
 #include "third_party/python/Include/structmember.h"
 /* clang-format off */
+
 /*
  * ossaudiodev -- Python interface to the OSS (Open Sound System) API.
  *                This is the standard audio API for Linux and some
@@ -22,25 +30,8 @@
  * $Id$
  */
 
-#ifdef HAVE_FCNTL_H
-#include <fcntl.h>
-#else
-#define O_RDONLY 00
-#define O_WRONLY 01
-#endif
-
-#ifdef __linux__
-
-#ifndef HAVE_STDINT_H
-typedef unsigned long uint32_t;
-#endif
-
-#elif defined(__FreeBSD__)
-
-# ifndef SNDCTL_DSP_CHANNELS
-#  define SNDCTL_DSP_CHANNELS SOUND_PCM_WRITE_CHANNELS
-# endif
-
+#ifndef SNDCTL_DSP_CHANNELS
+#define SNDCTL_DSP_CHANNELS SOUND_PCM_WRITE_CHANNELS
 #endif
 
 typedef struct {
@@ -58,13 +49,10 @@ typedef struct {
     int      fd;                      /* The open mixer device */
 } oss_mixer_t;
 
-
 static PyTypeObject OSSAudioType;
 static PyTypeObject OSSMixerType;
-
 static PyObject *OSSAudioError;
 
-
 /* ----------------------------------------------------------------------
  * DSP object initialization/deallocation
  */
@@ -151,7 +139,6 @@ oss_dealloc(oss_audio_t *self)
     PyObject_Del(self);
 }
 
-
 /* ----------------------------------------------------------------------
  * Mixer object initialization/deallocation
  */
@@ -196,7 +183,6 @@ oss_mixer_dealloc(oss_mixer_t *self)
     PyObject_Del(self);
 }
 
-
 /* Methods to wrap the OSS ioctls.  The calling convention is pretty
    simple:
      nonblock()        -> ioctl(fd, SNDCTL_DSP_NONBLOCK)
@@ -204,7 +190,6 @@ oss_mixer_dealloc(oss_mixer_t *self)
      etc.
 */
 
-
 /* ----------------------------------------------------------------------
  * Helper functions
  */
@@ -249,7 +234,6 @@ _do_ioctl_1(int fd, PyObject *args, char *fname, int cmd)
     return PyLong_FromLong(arg);
 }
 
-
 /* _do_ioctl_1_internal() is a wrapper for ioctls that take no inputs
    but return an output -- ie. we need to pass a pointer to a local C
    variable so the driver can write its output there, but from Python
@@ -275,7 +259,6 @@ _do_ioctl_1_internal(int fd, PyObject *args, char *fname, int cmd)
 }
 
 
-
 /* _do_ioctl_0() is a private helper for the no-argument ioctls:
    SNDCTL_DSP_{SYNC,RESET,POST}. */
 static PyObject *
@@ -303,7 +286,6 @@ _do_ioctl_0(int fd, PyObject *args, char *fname, int cmd)
     return Py_None;
 }
 
-
 /* ----------------------------------------------------------------------
  * Methods of DSP objects (OSSAudioType)
  */
@@ -389,7 +371,6 @@ oss_post(oss_audio_t *self, PyObject *args)
     return _do_ioctl_0(self->fd, args, "post", SNDCTL_DSP_POST);
 }
 
-
 /* Regular file methods: read(), write(), close(), etc. as well
    as one convenience method, writeall(). */
 
@@ -551,7 +532,6 @@ oss_fileno(oss_audio_t *self, PyObject *unused)
     return PyLong_FromLong(self->fd);
 }
 
-
 /* Convenience methods: these generally wrap a couple of ioctls into one
    common task. */
 
@@ -639,7 +619,6 @@ _ssize(oss_audio_t *self, int *nchannels, int *ssize)
     return 0;
 }
 
-
 /* bufsize returns the size of the hardware audio buffer in number
    of samples */
 static PyObject *
@@ -727,7 +706,6 @@ oss_getptr(oss_audio_t *self, PyObject *unused)
     return Py_BuildValue("iii", info.bytes, info.blocks, info.ptr);
 }
 
-
 /* ----------------------------------------------------------------------
  * Methods of mixer objects (OSSMixerType)
  */
@@ -857,7 +835,6 @@ oss_mixer_set_recsrc(oss_mixer_t *self, PyObject *args)
         SOUND_MIXER_WRITE_RECSRC);
 }
 
-
 /* ----------------------------------------------------------------------
  * Method tables and other bureaucracy
  */
@@ -1022,7 +999,6 @@ static PyTypeObject OSSMixerType = {
     oss_mixer_methods,              /*tp_methods*/
 };
 
-
 static PyObject *
 ossopen(PyObject *self, PyObject *args)
 {
@@ -1041,15 +1017,12 @@ static PyMethodDef ossaudiodev_methods[] = {
     { 0, 0 },
 };
 
-
 #define _EXPORT_INT(mod, name) \
   if (PyModule_AddIntConstant(mod, #name, (long) (name)) == -1) return NULL;
 
-
 static char *control_labels[] = SOUND_DEVICE_LABELS;
 static char *control_names[] = SOUND_DEVICE_NAMES;
 
-
 static int
 build_namelists (PyObject *module)
 {
@@ -1092,7 +1065,6 @@ error1:
     return -1;
 }
 
-
 static struct PyModuleDef ossaudiodevmodule = {
         PyModuleDef_HEAD_INIT,
         "ossaudiodev",
diff --git a/third_party/python/Modules/overlapped.c b/third_party/python/Modules/overlapped.c
index b2ae3fe94..2a84f2a6c 100644
--- a/third_party/python/Modules/overlapped.c
+++ b/third_party/python/Modules/overlapped.c
@@ -1,5 +1,12 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/structmember.h"
 /* clang-format off */
+
 /*
  * Support for overlapped IO
  *
diff --git a/third_party/python/Modules/parsermodule.c b/third_party/python/Modules/parsermodule.c
index 0685b43ae..5adb11a02 100644
--- a/third_party/python/Modules/parsermodule.c
+++ b/third_party/python/Modules/parsermodule.c
@@ -1,5 +1,12 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/Python-ast.h"
 #include "third_party/python/Include/abstract.h"
+#include "third_party/python/Include/ast.h"
 #include "third_party/python/Include/boolobject.h"
 #include "third_party/python/Include/compile.h"
 #include "third_party/python/Include/dictobject.h"
@@ -18,6 +25,7 @@
 #include "third_party/python/Include/token.h"
 #include "third_party/python/Include/unicodeobject.h"
 /* clang-format off */
+
 /*  parsermodule.c
  *
  *  Copyright 1995-1996 by Fred L. Drake, Jr. and Virginia Polytechnic
@@ -50,9 +58,6 @@
  *  Lib/symbol.h and Include/token.h.
  */
 
-#undef Yield
-#include "third_party/python/Include/ast.h"
-
 extern grammar _PyParser_Grammar; /* From graminit.c */
 
 #define NOTE(x)
diff --git a/third_party/python/Modules/posixmodule.c b/third_party/python/Modules/posixmodule.c
index 64b63b763..687e771cb 100644
--- a/third_party/python/Modules/posixmodule.c
+++ b/third_party/python/Modules/posixmodule.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #define PY_SSIZE_T_CLEAN
 #include "libc/alg/alg.h"
 #include "libc/assert.h"
@@ -59,11 +65,6 @@
    of the compiler used.  Different compilers define their own feature
    test macro, e.g. '_MSC_VER'. */
 
-
-
-#ifdef __APPLE__
-#endif /* __APPLE__ */
-
 PyDoc_STRVAR(posix__doc__,
 "This module provides access to operating system functionality that is\n\
 standardized by the C Standard and the POSIX standard (a thinly\n\
diff --git a/third_party/python/Modules/pwdmodule.c b/third_party/python/Modules/pwdmodule.c
index 250ad53db..73054a79b 100644
--- a/third_party/python/Modules/pwdmodule.c
+++ b/third_party/python/Modules/pwdmodule.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/musl/passwd.h"
 #include "third_party/python/Include/bytesobject.h"
 #include "third_party/python/Include/listobject.h"
diff --git a/third_party/python/Modules/pyexpat.c b/third_party/python/Modules/pyexpat.c
index e413cae18..1c5cb215a 100644
--- a/third_party/python/Modules/pyexpat.c
+++ b/third_party/python/Modules/pyexpat.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/fmt/fmt.h"
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/boolobject.h"
diff --git a/third_party/python/Modules/readline.c b/third_party/python/Modules/readline.c
index a226761cb..9b5990d67 100644
--- a/third_party/python/Modules/readline.c
+++ b/third_party/python/Modules/readline.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
 
 /* This module makes GNU readline available to Python.  It has ideas
diff --git a/third_party/python/Modules/resource.c b/third_party/python/Modules/resource.c
index b5980e2ea..574673cce 100644
--- a/third_party/python/Modules/resource.c
+++ b/third_party/python/Modules/resource.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/calls.h"
 #include "libc/calls/struct/rlimit.h"
 #include "libc/calls/struct/rusage.h"
diff --git a/third_party/python/Modules/rotatingtree.c b/third_party/python/Modules/rotatingtree.c
index 0f6874dc6..d66d5ebdf 100644
--- a/third_party/python/Modules/rotatingtree.c
+++ b/third_party/python/Modules/rotatingtree.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Modules/rotatingtree.h"
 /* clang-format off */
 
diff --git a/third_party/python/Modules/selectmodule.c b/third_party/python/Modules/selectmodule.c
index 27a8c29cb..e593763f2 100644
--- a/third_party/python/Modules/selectmodule.c
+++ b/third_party/python/Modules/selectmodule.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/calls.h"
 #include "libc/errno.h"
 #include "libc/nt/efi.h"
diff --git a/third_party/python/Modules/sha1module.c b/third_party/python/Modules/sha1module.c
index 5253099d9..8d81c1c03 100644
--- a/third_party/python/Modules/sha1module.c
+++ b/third_party/python/Modules/sha1module.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/assert.h"
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/bytesobject.h"
diff --git a/third_party/python/Modules/sha256module.c b/third_party/python/Modules/sha256module.c
index 33e57efaa..775860956 100644
--- a/third_party/python/Modules/sha256module.c
+++ b/third_party/python/Modules/sha256module.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/bytesobject.h"
 #include "third_party/python/Include/descrobject.h"
diff --git a/third_party/python/Modules/sha512module.c b/third_party/python/Modules/sha512module.c
index b80a16fd9..e1885b445 100644
--- a/third_party/python/Modules/sha512module.c
+++ b/third_party/python/Modules/sha512module.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/bytesobject.h"
 #include "third_party/python/Include/descrobject.h"
@@ -10,7 +16,6 @@
 #include "third_party/python/Include/structmember.h"
 #include "third_party/python/Modules/hashlib.h"
 /* clang-format off */
-/* SHA512 module */
 
 /* This module provides an interface to NIST's SHA-512 and SHA-384 Algorithms */
 
diff --git a/third_party/python/Modules/signalmodule.c b/third_party/python/Modules/signalmodule.c
index 597bae9f4..e195db0f6 100644
--- a/third_party/python/Modules/signalmodule.c
+++ b/third_party/python/Modules/signalmodule.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/calls.h"
 #include "libc/calls/struct/itimerval.h"
 #include "libc/dce.h"
diff --git a/third_party/python/Modules/socketmodule.c b/third_party/python/Modules/socketmodule.c
index d961e3f36..9b29a54e6 100644
--- a/third_party/python/Modules/socketmodule.c
+++ b/third_party/python/Modules/socketmodule.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/calls.h"
 #include "libc/calls/weirdtypes.h"
 #include "libc/dce.h"
@@ -44,7 +50,6 @@
 #include "third_party/python/Modules/socketmodule.h"
 #include "third_party/python/pyconfig.h"
 /* clang-format off */
-/* Socket module */
 
 /*
 
diff --git a/third_party/python/Modules/spwdmodule.c b/third_party/python/Modules/spwdmodule.c
index b97fef78f..42f64b240 100644
--- a/third_party/python/Modules/spwdmodule.c
+++ b/third_party/python/Modules/spwdmodule.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/methodobject.h"
 #include "third_party/python/Include/modsupport.h"
 #include "third_party/python/Include/moduleobject.h"
diff --git a/third_party/python/Modules/sre_lib.inc b/third_party/python/Modules/sre_lib.inc
index c8f1b0e2f..49d13cdb4 100644
--- a/third_party/python/Modules/sre_lib.inc
+++ b/third_party/python/Modules/sre_lib.inc
@@ -1,4 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
+
 /*
  * Secret Labs' Regular Expression Engine
  *
diff --git a/third_party/python/Modules/symtablemodule.c b/third_party/python/Modules/symtablemodule.c
index 36a1abf98..228f9eca2 100644
--- a/third_party/python/Modules/symtablemodule.c
+++ b/third_party/python/Modules/symtablemodule.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/Python-ast.h"
 #include "third_party/python/Include/code.h"
 #include "third_party/python/Include/modsupport.h"
diff --git a/third_party/python/Modules/syslogmodule.c b/third_party/python/Modules/syslogmodule.c
index c12926c5b..f0c9f2c13 100644
--- a/third_party/python/Modules/syslogmodule.c
+++ b/third_party/python/Modules/syslogmodule.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/sock/syslog.h"
 #include "libc/sysv/consts/log.h"
 #include "third_party/python/Include/ceval.h"
diff --git a/third_party/python/Modules/termios.c b/third_party/python/Modules/termios.c
index 3c148cd95..db37ec525 100644
--- a/third_party/python/Modules/termios.c
+++ b/third_party/python/Modules/termios.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/struct/termios.h"
 #include "libc/calls/termios.h"
 #include "libc/calls/weirdtypes.h"
diff --git a/third_party/python/Modules/testcapi_long.inc b/third_party/python/Modules/testcapi_long.inc
index fa09d8b6c..39187b7e2 100644
--- a/third_party/python/Modules/testcapi_long.inc
+++ b/third_party/python/Modules/testcapi_long.inc
@@ -1,4 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
+
 /* Poor-man's template.  Macros used:
    TESTNAME     name of the test (like test_long_api_inner)
    TYPENAME     the signed type (like long)
diff --git a/third_party/python/Modules/timemodule.c b/third_party/python/Modules/timemodule.c
index 871b1d26e..b47508d9d 100644
--- a/third_party/python/Modules/timemodule.c
+++ b/third_party/python/Modules/timemodule.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/calls.h"
 #include "libc/calls/struct/rusage.h"
 #include "libc/calls/struct/timespec.h"
diff --git a/third_party/python/Modules/unicodedata.c b/third_party/python/Modules/unicodedata.c
index 18478f867..52ebbb5bf 100644
--- a/third_party/python/Modules/unicodedata.c
+++ b/third_party/python/Modules/unicodedata.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #define PY_SSIZE_T_CLEAN
 #include "libc/fmt/fmt.h"
 #include "third_party/python/Include/floatobject.h"
diff --git a/third_party/python/Modules/unicodedata_db.inc b/third_party/python/Modules/unicodedata_db.inc
index f33ee6038..1d2bf07d9 100644
--- a/third_party/python/Modules/unicodedata_db.inc
+++ b/third_party/python/Modules/unicodedata_db.inc
@@ -1,4 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
+
 /* this file was generated by Tools/unicode/makeunicodedata.py 3.2 */
 
 #define UNIDATA_VERSION "9.0.0"
diff --git a/third_party/python/Modules/unicodename_db.inc b/third_party/python/Modules/unicodename_db.inc
index 09de96e71..a77a05144 100644
--- a/third_party/python/Modules/unicodename_db.inc
+++ b/third_party/python/Modules/unicodename_db.inc
@@ -1,4 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
+
 /* this file was generated by Tools/unicode/makeunicodedata.py 3.2 */
 
 #define NAME_MAXLEN 256
diff --git a/third_party/python/Modules/xxlimited.c b/third_party/python/Modules/xxlimited.c
index aa4f6cc29..90a21acef 100644
--- a/third_party/python/Modules/xxlimited.c
+++ b/third_party/python/Modules/xxlimited.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/dictobject.h"
 #include "third_party/python/Include/longobject.h"
 #include "third_party/python/Include/methodobject.h"
diff --git a/third_party/python/Modules/xxmodule.c b/third_party/python/Modules/xxmodule.c
index bfe0d7008..e3a975221 100644
--- a/third_party/python/Modules/xxmodule.c
+++ b/third_party/python/Modules/xxmodule.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/dictobject.h"
 #include "third_party/python/Include/listobject.h"
 #include "third_party/python/Include/longobject.h"
diff --git a/third_party/python/Modules/xxsubtype.c b/third_party/python/Modules/xxsubtype.c
index 8c9f8728d..80d36f7cf 100644
--- a/third_party/python/Modules/xxsubtype.c
+++ b/third_party/python/Modules/xxsubtype.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/weirdtypes.h"
 #include "libc/time/time.h"
 #include "third_party/python/Include/descrobject.h"
diff --git a/third_party/python/Modules/zipimport.c b/third_party/python/Modules/zipimport.c
index 4b1a82410..b819cf829 100644
--- a/third_party/python/Modules/zipimport.c
+++ b/third_party/python/Modules/zipimport.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/bits/bits.h"
 #include "libc/calls/calls.h"
 #include "libc/calls/weirdtypes.h"
diff --git a/third_party/python/Modules/zlibmodule.c b/third_party/python/Modules/zlibmodule.c
index b5735bef9..d2f093cfc 100644
--- a/third_party/python/Modules/zlibmodule.c
+++ b/third_party/python/Modules/zlibmodule.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #define PY_SSIZE_T_CLEAN
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/bytesobject.h"
diff --git a/third_party/python/Objects/abstract.c b/third_party/python/Objects/abstract.c
index 86f2c64bb..55274d117 100644
--- a/third_party/python/Objects/abstract.c
+++ b/third_party/python/Objects/abstract.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/assert.h"
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/bytearrayobject.h"
diff --git a/third_party/python/Objects/accu.c b/third_party/python/Objects/accu.c
index 226ebb099..e8222eaa1 100644
--- a/third_party/python/Objects/accu.c
+++ b/third_party/python/Objects/accu.c
@@ -1,11 +1,15 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/assert.h"
 #include "third_party/python/Include/accu.h"
 #include "third_party/python/Include/listobject.h"
 #include "third_party/python/Include/unicodeobject.h"
 /* clang-format off */
 
-/* Accumulator struct implementation */
-
 static PyObject *
 join_list_unicode(PyObject *lst)
 {
diff --git a/third_party/python/Objects/boolobject.c b/third_party/python/Objects/boolobject.c
index 1e2574c73..fe11af9f3 100644
--- a/third_party/python/Objects/boolobject.c
+++ b/third_party/python/Objects/boolobject.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/boolobject.h"
 #include "third_party/python/Include/longintrepr.h"
 #include "third_party/python/Include/modsupport.h"
diff --git a/third_party/python/Objects/bytearrayobject.c b/third_party/python/Objects/bytearrayobject.c
index c9b27b4b9..76eb2b56e 100644
--- a/third_party/python/Objects/bytearrayobject.c
+++ b/third_party/python/Objects/bytearrayobject.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #define PY_SSIZE_T_CLEAN
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/boolobject.h"
@@ -20,8 +26,6 @@
 #include "third_party/python/Include/warnings.h"
 /* clang-format off */
 
-/* PyByteArray (bytearray) implementation */
-
 /*[clinic input]
 class bytearray "PyByteArrayObject *" "&PyByteArray_Type"
 [clinic start generated code]*/
diff --git a/third_party/python/Objects/bytes_methods.c b/third_party/python/Objects/bytes_methods.c
index b7a42f39e..a98da7234 100644
--- a/third_party/python/Objects/bytes_methods.c
+++ b/third_party/python/Objects/bytes_methods.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #define PY_SSIZE_T_CLEAN
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/boolobject.h"
diff --git a/third_party/python/Objects/bytesobject.c b/third_party/python/Objects/bytesobject.c
index 5f3ac0ff1..af790f93c 100644
--- a/third_party/python/Objects/bytesobject.c
+++ b/third_party/python/Objects/bytesobject.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #define PY_SSIZE_T_CLEAN
 #include "libc/assert.h"
 #include "libc/fmt/fmt.h"
@@ -24,8 +30,6 @@
 #include "third_party/python/Include/warnings.h"
 /* clang-format off */
 
-/* bytes object implementation */
-
 /*[clinic input]
 class bytes "PyBytesObject *" "&PyBytes_Type"
 [clinic start generated code]*/
diff --git a/third_party/python/Objects/capsule.c b/third_party/python/Objects/capsule.c
index 5feb4a26d..13d7c3e46 100644
--- a/third_party/python/Objects/capsule.c
+++ b/third_party/python/Objects/capsule.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/import.h"
 #include "third_party/python/Include/object.h"
 #include "third_party/python/Include/objimpl.h"
@@ -5,6 +11,7 @@
 #include "third_party/python/Include/pyerrors.h"
 #include "third_party/python/Include/pymacro.h"
 /* clang-format off */
+
 /* Wrap void * pointers to be passed between C modules */
 
 /* Internal structure of PyCapsule */
diff --git a/third_party/python/Objects/cellobject.c b/third_party/python/Objects/cellobject.c
index d2166c55e..30116abae 100644
--- a/third_party/python/Objects/cellobject.c
+++ b/third_party/python/Objects/cellobject.c
@@ -1,10 +1,15 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/boolobject.h"
 #include "third_party/python/Include/cellobject.h"
 #include "third_party/python/Include/descrobject.h"
 #include "third_party/python/Include/object.h"
 #include "third_party/python/Include/objimpl.h"
 /* clang-format off */
-/* Cell object implementation */
 
 PyObject *
 PyCell_New(PyObject *obj)
diff --git a/third_party/python/Objects/classobject.c b/third_party/python/Objects/classobject.c
index 28dfab2c8..2995d2105 100644
--- a/third_party/python/Objects/classobject.c
+++ b/third_party/python/Objects/classobject.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/boolobject.h"
 #include "third_party/python/Include/ceval.h"
diff --git a/third_party/python/Objects/clinic/bytearrayobject.inc b/third_party/python/Objects/clinic/bytearrayobject.inc
index 2fe1d24e7..24b06102e 100644
--- a/third_party/python/Objects/clinic/bytearrayobject.inc
+++ b/third_party/python/Objects/clinic/bytearrayobject.inc
@@ -1,4 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
+
 /*[clinic input]
 preserve
 [clinic start generated code]*/
diff --git a/third_party/python/Objects/clinic/bytesobject.inc b/third_party/python/Objects/clinic/bytesobject.inc
index 2cca9dac8..11e6ef532 100644
--- a/third_party/python/Objects/clinic/bytesobject.inc
+++ b/third_party/python/Objects/clinic/bytesobject.inc
@@ -1,4 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
+
 /*[clinic input]
 preserve
 [clinic start generated code]*/
diff --git a/third_party/python/Objects/clinic/dictobject.inc b/third_party/python/Objects/clinic/dictobject.inc
index 8bfb357fa..5dfd38329 100644
--- a/third_party/python/Objects/clinic/dictobject.inc
+++ b/third_party/python/Objects/clinic/dictobject.inc
@@ -1,4 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
+
 /*[clinic input]
 preserve
 [clinic start generated code]*/
diff --git a/third_party/python/Objects/clinic/unicodeobject.inc b/third_party/python/Objects/clinic/unicodeobject.inc
index 58c854b17..7d663b844 100644
--- a/third_party/python/Objects/clinic/unicodeobject.inc
+++ b/third_party/python/Objects/clinic/unicodeobject.inc
@@ -1,4 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
+
 /*[clinic input]
 preserve
 [clinic start generated code]*/
diff --git a/third_party/python/Objects/codeobject.c b/third_party/python/Objects/codeobject.c
index a8f3759c4..160a8c9db 100644
--- a/third_party/python/Objects/codeobject.c
+++ b/third_party/python/Objects/codeobject.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/math.h"
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/boolobject.h"
diff --git a/third_party/python/Objects/complexobject.c b/third_party/python/Objects/complexobject.c
index 86b60e353..8077b0847 100644
--- a/third_party/python/Objects/complexobject.c
+++ b/third_party/python/Objects/complexobject.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/errno.h"
 #include "libc/math.h"
 #include "third_party/python/Include/abstract.h"
@@ -16,7 +22,6 @@
 #include "third_party/python/Include/structmember.h"
 /* clang-format off */
 
-/* Complex object implementation */
 /* Borrows heavily from floatobject.c */
 /* Submitted by Jim Hugunin */
 
diff --git a/third_party/python/Objects/descrobject.c b/third_party/python/Objects/descrobject.c
index 10ce58f30..be1be6949 100644
--- a/third_party/python/Objects/descrobject.c
+++ b/third_party/python/Objects/descrobject.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/boolobject.h"
 #include "third_party/python/Include/ceval.h"
diff --git a/third_party/python/Objects/dictobject.c b/third_party/python/Objects/dictobject.c
index 4fddcf418..bb74293a4 100644
--- a/third_party/python/Objects/dictobject.c
+++ b/third_party/python/Objects/dictobject.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/boolobject.h"
 #include "third_party/python/Include/longobject.h"
diff --git a/third_party/python/Objects/enumobject.c b/third_party/python/Objects/enumobject.c
index e15038a04..f7c4711b4 100644
--- a/third_party/python/Objects/enumobject.c
+++ b/third_party/python/Objects/enumobject.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/assert.h"
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/enumobject.h"
@@ -10,8 +16,6 @@
 #include "third_party/python/Include/pymacro.h"
 /* clang-format off */
 
-/* enumerate object */
-
 typedef struct {
     PyObject_HEAD
     Py_ssize_t en_index;           /* current index of enumeration */
diff --git a/third_party/python/Objects/exceptions.c b/third_party/python/Objects/exceptions.c
index 467dc0dce..e77718199 100644
--- a/third_party/python/Objects/exceptions.c
+++ b/third_party/python/Objects/exceptions.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #define PY_SSIZE_T_CLEAN
 #include "libc/errno.h"
 #include "third_party/python/Include/abstract.h"
@@ -14,6 +20,7 @@
 #include "third_party/python/Include/traceback.h"
 #include "third_party/python/Include/tupleobject.h"
 /* clang-format off */
+
 /*
  * New exceptions.c written in Iceland by Richard Jones and Georg Brandl.
  *
diff --git a/third_party/python/Objects/fileobject.c b/third_party/python/Objects/fileobject.c
index ebb053082..181817fb0 100644
--- a/third_party/python/Objects/fileobject.c
+++ b/third_party/python/Objects/fileobject.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #define PY_SSIZE_T_CLEAN
 #include "libc/calls/calls.h"
 #include "libc/errno.h"
diff --git a/third_party/python/Objects/floatobject.c b/third_party/python/Objects/floatobject.c
index 8d6763005..89f3775d2 100644
--- a/third_party/python/Objects/floatobject.c
+++ b/third_party/python/Objects/floatobject.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/errno.h"
 #include "libc/fmt/conv.h"
 #include "libc/math.h"
@@ -25,8 +31,6 @@
 #include "third_party/python/Include/warnings.h"
 /* clang-format off */
 
-/* Float object implementation */
-
 /* XXX There should be overflow checks here, but it's hard to check
    for any kind of float exception without losing portability. */
 
diff --git a/third_party/python/Objects/frameobject.c b/third_party/python/Objects/frameobject.c
index a757fb48c..1cca50894 100644
--- a/third_party/python/Objects/frameobject.c
+++ b/third_party/python/Objects/frameobject.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/cellobject.h"
 #include "third_party/python/Include/code.h"
@@ -14,8 +20,6 @@
 #include "third_party/python/Include/tupleobject.h"
 /* clang-format off */
 
-/* Frame object implementation */
-
 #define OFF(x) offsetof(PyFrameObject, x)
 
 static PyMemberDef frame_memberlist[] = {
diff --git a/third_party/python/Objects/funcobject.c b/third_party/python/Objects/funcobject.c
index c11a6829e..4694f065f 100644
--- a/third_party/python/Objects/funcobject.c
+++ b/third_party/python/Objects/funcobject.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/boolobject.h"
 #include "third_party/python/Include/cellobject.h"
 #include "third_party/python/Include/classobject.h"
@@ -14,8 +20,6 @@
 #include "third_party/python/Include/unicodeobject.h"
 /* clang-format off */
 
-/* Function object implementation */
-
 PyObject *
 PyFunction_NewWithQualName(PyObject *code, PyObject *globals, PyObject *qualname)
 {
diff --git a/third_party/python/Objects/genobject.c b/third_party/python/Objects/genobject.c
index ccb17025f..1d5ff086d 100644
--- a/third_party/python/Objects/genobject.c
+++ b/third_party/python/Objects/genobject.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/bytesobject.h"
 #include "third_party/python/Include/ceval.h"
@@ -13,7 +19,6 @@
 #include "third_party/python/Include/traceback.h"
 #include "third_party/python/Include/warnings.h"
 /* clang-format off */
-/* Generator object implementation */
 
 static PyObject *gen_close(PyGenObject *, PyObject *);
 static PyObject *async_gen_asend_new(PyAsyncGenObject *, PyObject *);
diff --git a/third_party/python/Objects/iterobject.c b/third_party/python/Objects/iterobject.c
index a4820ddcf..2149f9c2c 100644
--- a/third_party/python/Objects/iterobject.c
+++ b/third_party/python/Objects/iterobject.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/iterobject.h"
 #include "third_party/python/Include/longobject.h"
@@ -7,7 +13,6 @@
 #include "third_party/python/Include/pyerrors.h"
 #include "third_party/python/Include/pymacro.h"
 /* clang-format off */
-/* Iterator objects */
 
 typedef struct {
     PyObject_HEAD
diff --git a/third_party/python/Objects/listobject.c b/third_party/python/Objects/listobject.c
index 3eaaad27e..fa01c9260 100644
--- a/third_party/python/Objects/listobject.c
+++ b/third_party/python/Objects/listobject.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/assert.h"
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/accu.h"
@@ -15,8 +21,6 @@
 #include "third_party/python/Include/sliceobject.h"
 /* clang-format off */
 
-/* List object implementation */
-
 /* Ensure ob_item has room for at least newsize elements, and set
  * ob_size to newsize.  If newsize > ob_size on entry, the content
  * of the new slots at exit is undefined heap trash; it's the caller's
diff --git a/third_party/python/Objects/longobject.c b/third_party/python/Objects/longobject.c
index ff1195cc4..8371f839b 100644
--- a/third_party/python/Objects/longobject.c
+++ b/third_party/python/Objects/longobject.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/assert.h"
 #include "libc/fmt/conv.h"
 #include "libc/limits.h"
diff --git a/third_party/python/Objects/memoryobject.c b/third_party/python/Objects/memoryobject.c
index 4c8081dc6..7b04149cf 100644
--- a/third_party/python/Objects/memoryobject.c
+++ b/third_party/python/Objects/memoryobject.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/boolobject.h"
 #include "third_party/python/Include/bytesobject.h"
@@ -17,8 +23,6 @@
 #include "third_party/python/Include/sliceobject.h"
 /* clang-format off */
 
-/* Memoryview object implementation */
-
 /****************************************************************************/
 /*                           ManagedBuffer Object                           */
 /****************************************************************************/
diff --git a/third_party/python/Objects/methodobject.c b/third_party/python/Objects/methodobject.c
index 805c1bba8..e048a58a1 100644
--- a/third_party/python/Objects/methodobject.c
+++ b/third_party/python/Objects/methodobject.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/boolobject.h"
 #include "third_party/python/Include/ceval.h"
@@ -11,8 +17,6 @@
 #include "third_party/python/Include/structmember.h"
 /* clang-format off */
 
-/* Method object implementation */
-
 /* Free list for method objects to safe malloc/free overhead
  * The m_self element is used to chain the objects.
  */
diff --git a/third_party/python/Objects/moduleobject.c b/third_party/python/Objects/moduleobject.c
index be61f5ce8..7ee3737c2 100644
--- a/third_party/python/Objects/moduleobject.c
+++ b/third_party/python/Objects/moduleobject.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/descrobject.h"
 #include "third_party/python/Include/dictobject.h"
diff --git a/third_party/python/Objects/namespaceobject.c b/third_party/python/Objects/namespaceobject.c
index 04ab8f8c0..ce94dd166 100644
--- a/third_party/python/Objects/namespaceobject.c
+++ b/third_party/python/Objects/namespaceobject.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/assert.h"
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/descrobject.h"
diff --git a/third_party/python/Objects/object.c b/third_party/python/Objects/object.c
index 3a6afe500..78943fa81 100644
--- a/third_party/python/Objects/object.c
+++ b/third_party/python/Objects/object.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/boolobject.h"
 #include "third_party/python/Include/bytearrayobject.h"
diff --git a/third_party/python/Objects/obmalloc.c b/third_party/python/Objects/obmalloc.c
index 8a3e5b71a..19acfabf3 100644
--- a/third_party/python/Objects/obmalloc.c
+++ b/third_party/python/Objects/obmalloc.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/assert.h"
 #include "libc/calls/calls.h"
 #include "libc/fmt/fmt.h"
diff --git a/third_party/python/Objects/odictobject.c b/third_party/python/Objects/odictobject.c
index 452bdb5fb..d0480e6c5 100644
--- a/third_party/python/Objects/odictobject.c
+++ b/third_party/python/Objects/odictobject.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/assert.h"
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/boolobject.h"
diff --git a/third_party/python/Objects/rangeobject.c b/third_party/python/Objects/rangeobject.c
index 2517767a6..d5e357863 100644
--- a/third_party/python/Objects/rangeobject.c
+++ b/third_party/python/Objects/rangeobject.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/boolobject.h"
 #include "third_party/python/Include/longobject.h"
diff --git a/third_party/python/Objects/setobject.c b/third_party/python/Objects/setobject.c
index 149723713..2fc47e39d 100644
--- a/third_party/python/Objects/setobject.c
+++ b/third_party/python/Objects/setobject.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/assert.h"
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/boolobject.h"
diff --git a/third_party/python/Objects/sliceobject.c b/third_party/python/Objects/sliceobject.c
index ea126d04b..2801dfb26 100644
--- a/third_party/python/Objects/sliceobject.c
+++ b/third_party/python/Objects/sliceobject.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/boolobject.h"
 #include "third_party/python/Include/ceval.h"
diff --git a/third_party/python/Objects/stringlib/asciilib.inc b/third_party/python/Objects/stringlib/asciilib.inc
index 63cdc74f6..5757942fe 100644
--- a/third_party/python/Objects/stringlib/asciilib.inc
+++ b/third_party/python/Objects/stringlib/asciilib.inc
@@ -1,5 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
-/* clang-format off */
+
 /* this is sort of a hack.  there's at least one place (formatting
    floats) where some stringlib code takes a different path if it's
    compiled as unicode. */
diff --git a/third_party/python/Objects/stringlib/codecs.inc b/third_party/python/Objects/stringlib/codecs.inc
index 0e48428cd..06f08ee4c 100644
--- a/third_party/python/Objects/stringlib/codecs.inc
+++ b/third_party/python/Objects/stringlib/codecs.inc
@@ -1,4 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
+
 /* stringlib: codec implementations */
 
 #if !STRINGLIB_IS_UNICODE
diff --git a/third_party/python/Objects/stringlib/count.inc b/third_party/python/Objects/stringlib/count.inc
index b099cedaf..be86f75b2 100644
--- a/third_party/python/Objects/stringlib/count.inc
+++ b/third_party/python/Objects/stringlib/count.inc
@@ -1,4 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
+
 /* stringlib: count implementation */
 
 #ifndef STRINGLIB_FASTSEARCH_H
diff --git a/third_party/python/Objects/stringlib/ctype.inc b/third_party/python/Objects/stringlib/ctype.inc
index ce64596de..09add4ada 100644
--- a/third_party/python/Objects/stringlib/ctype.inc
+++ b/third_party/python/Objects/stringlib/ctype.inc
@@ -1,4 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
+
 #if STRINGLIB_IS_UNICODE
 # error "ctype.h only compatible with byte-wise strings"
 #endif
diff --git a/third_party/python/Objects/stringlib/eq.inc b/third_party/python/Objects/stringlib/eq.inc
index e78806ffc..8740d4946 100644
--- a/third_party/python/Objects/stringlib/eq.inc
+++ b/third_party/python/Objects/stringlib/eq.inc
@@ -1,4 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
+
 /* Fast unicode equal function optimized for dictobject.c and setobject.c */
 
 /* Return 1 if two unicode objects are equal, 0 if not.
diff --git a/third_party/python/Objects/stringlib/fastsearch.inc b/third_party/python/Objects/stringlib/fastsearch.inc
index 7087acd8b..5438823d7 100644
--- a/third_party/python/Objects/stringlib/fastsearch.inc
+++ b/third_party/python/Objects/stringlib/fastsearch.inc
@@ -1,4 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
+
 /* stringlib: fastsearch implementation */
 
 #define STRINGLIB_FASTSEARCH_H
diff --git a/third_party/python/Objects/stringlib/find.inc b/third_party/python/Objects/stringlib/find.inc
index 3ddee1636..13cc9f569 100644
--- a/third_party/python/Objects/stringlib/find.inc
+++ b/third_party/python/Objects/stringlib/find.inc
@@ -1,6 +1,13 @@
-/* clang-format off */
-/* stringlib: find/index implementation */
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/modsupport.h"
+/* clang-format off */
+
+/* stringlib: find/index implementation */
 
 #ifndef STRINGLIB_FASTSEARCH_H
 #error must include fastsearch.inc before including this module
diff --git a/third_party/python/Objects/stringlib/find_max_char.inc b/third_party/python/Objects/stringlib/find_max_char.inc
index 944485985..55b70ae30 100644
--- a/third_party/python/Objects/stringlib/find_max_char.inc
+++ b/third_party/python/Objects/stringlib/find_max_char.inc
@@ -1,4 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
+
 /* Finding the optimal width of unicode characters in a buffer */
 
 #if !STRINGLIB_IS_UNICODE
diff --git a/third_party/python/Objects/stringlib/join.inc b/third_party/python/Objects/stringlib/join.inc
index 4b0edc300..dc51d46ca 100644
--- a/third_party/python/Objects/stringlib/join.inc
+++ b/third_party/python/Objects/stringlib/join.inc
@@ -1,4 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
+
 /* stringlib: bytes joining implementation */
 
 #if STRINGLIB_IS_UNICODE
diff --git a/third_party/python/Objects/stringlib/localeutil.inc b/third_party/python/Objects/stringlib/localeutil.inc
index a5162d061..10e091830 100644
--- a/third_party/python/Objects/stringlib/localeutil.inc
+++ b/third_party/python/Objects/stringlib/localeutil.inc
@@ -1,4 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
+
 /* _PyUnicode_InsertThousandsGrouping() helper functions */
 
 typedef struct {
diff --git a/third_party/python/Objects/stringlib/partition.inc b/third_party/python/Objects/stringlib/partition.inc
index 39795146e..ebfa062f9 100644
--- a/third_party/python/Objects/stringlib/partition.inc
+++ b/third_party/python/Objects/stringlib/partition.inc
@@ -1,4 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
+
 /* stringlib: partition implementation */
 
 #ifndef STRINGLIB_FASTSEARCH_H
diff --git a/third_party/python/Objects/stringlib/replace.inc b/third_party/python/Objects/stringlib/replace.inc
index 6afcee6f5..e4890e6ee 100644
--- a/third_party/python/Objects/stringlib/replace.inc
+++ b/third_party/python/Objects/stringlib/replace.inc
@@ -1,4 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
+
 /* stringlib: replace implementation */
 
 #ifndef STRINGLIB_FASTSEARCH_H
diff --git a/third_party/python/Objects/stringlib/split.inc b/third_party/python/Objects/stringlib/split.inc
index a6ac6ad72..44a8f5d73 100644
--- a/third_party/python/Objects/stringlib/split.inc
+++ b/third_party/python/Objects/stringlib/split.inc
@@ -1,4 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
+
 /* stringlib: split implementation */
 
 #ifndef STRINGLIB_FASTSEARCH_H
diff --git a/third_party/python/Objects/stringlib/stringdefs.inc b/third_party/python/Objects/stringlib/stringdefs.inc
index 2cc9e4878..685b5a9f8 100644
--- a/third_party/python/Objects/stringlib/stringdefs.inc
+++ b/third_party/python/Objects/stringlib/stringdefs.inc
@@ -1,4 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
+
 #ifndef STRINGLIB_STRINGDEFS_H
 #define STRINGLIB_STRINGDEFS_H
 
diff --git a/third_party/python/Objects/stringlib/transmogrify.inc b/third_party/python/Objects/stringlib/transmogrify.inc
index abbb843c1..f0d2b687d 100644
--- a/third_party/python/Objects/stringlib/transmogrify.inc
+++ b/third_party/python/Objects/stringlib/transmogrify.inc
@@ -1,4 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
+
 #if STRINGLIB_IS_UNICODE
 # error "transmogrify.h only compatible with byte-wise strings"
 #endif
diff --git a/third_party/python/Objects/stringlib/ucs1lib.inc b/third_party/python/Objects/stringlib/ucs1lib.inc
index 3aa300edf..9c311f307 100644
--- a/third_party/python/Objects/stringlib/ucs1lib.inc
+++ b/third_party/python/Objects/stringlib/ucs1lib.inc
@@ -1,4 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
+
 /* this is sort of a hack.  there's at least one place (formatting
    floats) where some stringlib code takes a different path if it's
    compiled as unicode. */
diff --git a/third_party/python/Objects/stringlib/ucs2lib.inc b/third_party/python/Objects/stringlib/ucs2lib.inc
index d2e8c6e3b..d3ca7a479 100644
--- a/third_party/python/Objects/stringlib/ucs2lib.inc
+++ b/third_party/python/Objects/stringlib/ucs2lib.inc
@@ -1,4 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
+
 /* this is sort of a hack.  there's at least one place (formatting
    floats) where some stringlib code takes a different path if it's
    compiled as unicode. */
diff --git a/third_party/python/Objects/stringlib/ucs4lib.inc b/third_party/python/Objects/stringlib/ucs4lib.inc
index cb1a80770..28423cac0 100644
--- a/third_party/python/Objects/stringlib/ucs4lib.inc
+++ b/third_party/python/Objects/stringlib/ucs4lib.inc
@@ -1,4 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
+
 /* this is sort of a hack.  there's at least one place (formatting
    floats) where some stringlib code takes a different path if it's
    compiled as unicode. */
diff --git a/third_party/python/Objects/stringlib/undef.inc b/third_party/python/Objects/stringlib/undef.inc
index 1d39cfadf..8de0e0a24 100644
--- a/third_party/python/Objects/stringlib/undef.inc
+++ b/third_party/python/Objects/stringlib/undef.inc
@@ -1,4 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
+
 #undef  FASTSEARCH
 #undef  STRINGLIB
 #undef  STRINGLIB_SIZEOF_CHAR
diff --git a/third_party/python/Objects/stringlib/unicode_format.inc b/third_party/python/Objects/stringlib/unicode_format.inc
index 092162d70..f187cd6eb 100644
--- a/third_party/python/Objects/stringlib/unicode_format.inc
+++ b/third_party/python/Objects/stringlib/unicode_format.inc
@@ -1,4 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
+
 /*
     unicode_format.h -- implementation of str.format().
 */
diff --git a/third_party/python/Objects/stringlib/unicodedefs.inc b/third_party/python/Objects/stringlib/unicodedefs.inc
index ebde38fff..308b68d6f 100644
--- a/third_party/python/Objects/stringlib/unicodedefs.inc
+++ b/third_party/python/Objects/stringlib/unicodedefs.inc
@@ -1,32 +1,31 @@
-/* clang-format off */
 #ifndef STRINGLIB_UNICODEDEFS_H
 #define STRINGLIB_UNICODEDEFS_H
 
 /* this is sort of a hack.  there's at least one place (formatting
    floats) where some stringlib code takes a different path if it's
    compiled as unicode. */
-#define STRINGLIB_IS_UNICODE     1
+#define STRINGLIB_IS_UNICODE 1
 
-#define FASTSEARCH               fastsearch
-#define STRINGLIB(F)             stringlib_##F
-#define STRINGLIB_OBJECT         PyUnicodeObject
-#define STRINGLIB_SIZEOF_CHAR    Py_UNICODE_SIZE
-#define STRINGLIB_CHAR           Py_UNICODE
-#define STRINGLIB_TYPE_NAME      "unicode"
-#define STRINGLIB_PARSE_CODE     "U"
-#define STRINGLIB_EMPTY          unicode_empty
-#define STRINGLIB_ISSPACE        Py_UNICODE_ISSPACE
-#define STRINGLIB_ISLINEBREAK    BLOOM_LINEBREAK
-#define STRINGLIB_ISDECIMAL      Py_UNICODE_ISDECIMAL
-#define STRINGLIB_TODECIMAL      Py_UNICODE_TODECIMAL
-#define STRINGLIB_STR            PyUnicode_AS_UNICODE
-#define STRINGLIB_LEN            PyUnicode_GET_SIZE
-#define STRINGLIB_NEW            PyUnicode_FromUnicode
-#define STRINGLIB_CHECK          PyUnicode_Check
-#define STRINGLIB_CHECK_EXACT    PyUnicode_CheckExact
+#define FASTSEARCH            fastsearch
+#define STRINGLIB(F)          stringlib_##F
+#define STRINGLIB_OBJECT      PyUnicodeObject
+#define STRINGLIB_SIZEOF_CHAR Py_UNICODE_SIZE
+#define STRINGLIB_CHAR        Py_UNICODE
+#define STRINGLIB_TYPE_NAME   "unicode"
+#define STRINGLIB_PARSE_CODE  "U"
+#define STRINGLIB_EMPTY       unicode_empty
+#define STRINGLIB_ISSPACE     Py_UNICODE_ISSPACE
+#define STRINGLIB_ISLINEBREAK BLOOM_LINEBREAK
+#define STRINGLIB_ISDECIMAL   Py_UNICODE_ISDECIMAL
+#define STRINGLIB_TODECIMAL   Py_UNICODE_TODECIMAL
+#define STRINGLIB_STR         PyUnicode_AS_UNICODE
+#define STRINGLIB_LEN         PyUnicode_GET_SIZE
+#define STRINGLIB_NEW         PyUnicode_FromUnicode
+#define STRINGLIB_CHECK       PyUnicode_Check
+#define STRINGLIB_CHECK_EXACT PyUnicode_CheckExact
 
-#define STRINGLIB_TOSTR          PyObject_Str
-#define STRINGLIB_TOASCII        PyObject_ASCII
+#define STRINGLIB_TOSTR   PyObject_Str
+#define STRINGLIB_TOASCII PyObject_ASCII
 
 #define STRINGLIB_WANT_CONTAINS_OBJ 1
 
diff --git a/third_party/python/Objects/structseq.c b/third_party/python/Objects/structseq.c
index 904214300..eb69f2454 100644
--- a/third_party/python/Objects/structseq.c
+++ b/third_party/python/Objects/structseq.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/dictobject.h"
 #include "third_party/python/Include/longobject.h"
diff --git a/third_party/python/Objects/tupleobject.c b/third_party/python/Objects/tupleobject.c
index f9006ca67..9961da13f 100644
--- a/third_party/python/Objects/tupleobject.c
+++ b/third_party/python/Objects/tupleobject.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/accu.h"
 #include "third_party/python/Include/boolobject.h"
diff --git a/third_party/python/Objects/typeobject.c b/third_party/python/Objects/typeobject.c
index 36e19c135..dfb45208d 100644
--- a/third_party/python/Objects/typeobject.c
+++ b/third_party/python/Objects/typeobject.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/assert.h"
 #include "libc/fmt/fmt.h"
 #include "third_party/python/Include/abstract.h"
diff --git a/third_party/python/Objects/unicodectype.c b/third_party/python/Objects/unicodectype.c
index e7de2e615..f9a27ef1c 100644
--- a/third_party/python/Objects/unicodectype.c
+++ b/third_party/python/Objects/unicodectype.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/unicodeobject.h"
 /* clang-format off */
 
diff --git a/third_party/python/Objects/unicodeobject.c b/third_party/python/Objects/unicodeobject.c
index fd2731a11..c018b7a3f 100644
--- a/third_party/python/Objects/unicodeobject.c
+++ b/third_party/python/Objects/unicodeobject.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #define PY_SSIZE_T_CLEAN
 #include "libc/assert.h"
 #include "libc/errno.h"
diff --git a/third_party/python/Objects/weakrefobject.c b/third_party/python/Objects/weakrefobject.c
index 8b7ea473f..ce51d7ce1 100644
--- a/third_party/python/Objects/weakrefobject.c
+++ b/third_party/python/Objects/weakrefobject.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/boolobject.h"
 #include "third_party/python/Include/ceval.h"
diff --git a/third_party/python/PC/clinic/winreg.inc b/third_party/python/PC/clinic/winreg.inc
index c7d5b9e45..3651dc57b 100644
--- a/third_party/python/PC/clinic/winreg.inc
+++ b/third_party/python/PC/clinic/winreg.inc
@@ -1,3 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
+/* clang-format off */
+
 /*[clinic input]
 preserve
 [clinic start generated code]*/
diff --git a/third_party/python/PC/clinic/winsound.inc b/third_party/python/PC/clinic/winsound.inc
index 52d25b243..b794f4f08 100644
--- a/third_party/python/PC/clinic/winsound.inc
+++ b/third_party/python/PC/clinic/winsound.inc
@@ -1,3 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
+/* clang-format off */
+
 /*[clinic input]
 preserve
 [clinic start generated code]*/
diff --git a/third_party/python/PC/dl_nt.c b/third_party/python/PC/dl_nt.c
index ed55d72f9..207a01241 100644
--- a/third_party/python/PC/dl_nt.c
+++ b/third_party/python/PC/dl_nt.c
@@ -1,4 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
+
 /*
 
 Entry point for the Windows NT DLL.
diff --git a/third_party/python/PC/frozen_dllmain.c b/third_party/python/PC/frozen_dllmain.c
index b70042c67..07c5d5f2a 100644
--- a/third_party/python/PC/frozen_dllmain.c
+++ b/third_party/python/PC/frozen_dllmain.c
@@ -1,3 +1,10 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
+
 /* FreezeDLLMain.cpp
 
 This is a DLLMain suitable for frozen applications/DLLs on
diff --git a/third_party/python/PC/getpathp.c b/third_party/python/PC/getpathp.c
index ca9ba321a..c1c277a00 100644
--- a/third_party/python/PC/getpathp.c
+++ b/third_party/python/PC/getpathp.c
@@ -1,5 +1,11 @@
-/* clang-format off */
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "windows.h"
+/* clang-format off */
 
 /* Return the initial module search path. */
 /* Used by DOS, Windows 3.1, Windows 95/98, Windows NT. */
diff --git a/third_party/python/PC/launcher.c b/third_party/python/PC/launcher.c
index c34a58b93..ab4264a1c 100644
--- a/third_party/python/PC/launcher.c
+++ b/third_party/python/PC/launcher.c
@@ -1,4 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
+
 /*
  * Copyright (C) 2011-2013 Vinay Sajip.
  * Licensed to PSF under a contributor agreement.
diff --git a/third_party/python/PC/winreg.c b/third_party/python/PC/winreg.c
index 6cd0b586c..e8e57a6a7 100644
--- a/third_party/python/PC/winreg.c
+++ b/third_party/python/PC/winreg.c
@@ -1,4 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
+
 /*
   winreg.c
 
diff --git a/third_party/python/PC/winsound.c b/third_party/python/PC/winsound.c
index f89dce6ef..fbacbf7b8 100644
--- a/third_party/python/PC/winsound.c
+++ b/third_party/python/PC/winsound.c
@@ -1,4 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
+
 /* Author: Toby Dickenson <htrd90@zepler.org>
  *
  * Copyright (c) 1999 Toby Dickenson
diff --git a/third_party/python/Parser/acceler.c b/third_party/python/Parser/acceler.c
index 3b0c943e3..2a83c234f 100644
--- a/third_party/python/Parser/acceler.c
+++ b/third_party/python/Parser/acceler.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/grammar.h"
 #include "third_party/python/Include/node.h"
 #include "third_party/python/Include/objimpl.h"
@@ -5,7 +11,6 @@
 #include "third_party/python/Include/token.h"
 #include "third_party/python/Parser/parser.h"
 /* clang-format off */
-/* Parser accelerator module */
 
 /* The parser as originally conceived had disappointing performance.
    This module does some precomputation that speeds up the selection
diff --git a/third_party/python/Parser/bitset.c b/third_party/python/Parser/bitset.c
index 242b27d7c..57d65c16c 100644
--- a/third_party/python/Parser/bitset.c
+++ b/third_party/python/Parser/bitset.c
@@ -1,9 +1,13 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/bitset.h"
 #include "third_party/python/Include/objimpl.h"
 /* clang-format off */
 
-/* Bitset primitives used by the parser generator */
-
 bitset
 newbitset(int nbits)
 {
diff --git a/third_party/python/Parser/firstsets.c b/third_party/python/Parser/firstsets.c
index af246f85a..477a3f011 100644
--- a/third_party/python/Parser/firstsets.c
+++ b/third_party/python/Parser/firstsets.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/bitset.h"
 #include "third_party/python/Include/grammar.h"
 #include "third_party/python/Include/objimpl.h"
@@ -5,8 +11,6 @@
 #include "third_party/python/Include/token.h"
 /* clang-format off */
 
-/* Computation of FIRST stets */
-
 extern int Py_DebugFlag;
 
 /* Forward */
diff --git a/third_party/python/Parser/grammar.c b/third_party/python/Parser/grammar.c
index 8055c46c0..bfc4acdd6 100644
--- a/third_party/python/Parser/grammar.c
+++ b/third_party/python/Parser/grammar.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/grammar.h"
 #include "third_party/python/Include/objimpl.h"
 #include "third_party/python/Include/pgenheaders.h"
@@ -5,8 +11,6 @@
 #include "third_party/python/Include/token.h"
 /* clang-format off */
 
-/* Grammar implementation */
-
 extern int Py_DebugFlag;
 
 grammar *
diff --git a/third_party/python/Parser/grammar1.c b/third_party/python/Parser/grammar1.c
index 6b122d5bc..fc70c578d 100644
--- a/third_party/python/Parser/grammar1.c
+++ b/third_party/python/Parser/grammar1.c
@@ -1,13 +1,16 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/assert.h"
 #include "third_party/python/Include/grammar.h"
 #include "third_party/python/Include/pyerrors.h"
 #include "third_party/python/Include/token.h"
 /* clang-format off */
 
-/* Grammar subroutines needed by parser */
-
 /* Return the DFA for the given type */
-
 dfa *
 PyGrammar_FindDFA(grammar *g, int type)
 {
diff --git a/third_party/python/Parser/listnode.c b/third_party/python/Parser/listnode.c
index b4e6484bc..131f5539a 100644
--- a/third_party/python/Parser/listnode.c
+++ b/third_party/python/Parser/listnode.c
@@ -1,12 +1,15 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/stdio/stdio.h"
 #include "third_party/python/Include/node.h"
 #include "third_party/python/Include/pgenheaders.h"
 #include "third_party/python/Include/token.h"
 /* clang-format off */
 
-/* List a node on a file */
-
-/* Forward */
 static void list1node(FILE *, node *);
 static void listnode(FILE *, node *);
 
diff --git a/third_party/python/Parser/metagrammar.c b/third_party/python/Parser/metagrammar.c
index bddc031ed..76b2a9a99 100644
--- a/third_party/python/Parser/metagrammar.c
+++ b/third_party/python/Parser/metagrammar.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/grammar.h"
 #include "third_party/python/Include/metagrammar.h"
 #include "third_party/python/Include/pgen.h"
diff --git a/third_party/python/Parser/myreadline.c b/third_party/python/Parser/myreadline.c
index d3ca968a4..8f53c393d 100644
--- a/third_party/python/Parser/myreadline.c
+++ b/third_party/python/Parser/myreadline.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/calls.h"
 #include "libc/errno.h"
 #include "libc/limits.h"
diff --git a/third_party/python/Parser/node.c b/third_party/python/Parser/node.c
index 211628d60..a0cce63bc 100644
--- a/third_party/python/Parser/node.c
+++ b/third_party/python/Parser/node.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/assert.h"
 #include "libc/nexgen32e/bsr.h"
 #include "third_party/python/Include/errcode.h"
@@ -5,8 +11,6 @@
 #include "third_party/python/Include/objimpl.h"
 /* clang-format off */
 
-/* Parse tree node implementation */
-
 node *
 PyNode_New(int type)
 {
diff --git a/third_party/python/Parser/parser.c b/third_party/python/Parser/parser.c
index 88d450144..66c5587f7 100644
--- a/third_party/python/Parser/parser.c
+++ b/third_party/python/Parser/parser.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/assert.h"
 #include "third_party/python/Include/errcode.h"
 #include "third_party/python/Include/grammar.h"
@@ -8,9 +14,53 @@
 #include "third_party/python/Parser/parser.h"
 /* clang-format off */
 
-/* Parser implementation */
-/* For a description, see the comments at end of this file */
-/* XXX To do: error recovery */
+/*
+
+Description
+-----------
+
+The parser's interface is different than usual: the function addtoken()
+must be called for each token in the input.  This makes it possible to
+turn it into an incremental parsing system later.  The parsing system
+constructs a parse tree as it goes.
+
+A parsing rule is represented as a Deterministic Finite-state Automaton
+(DFA).  A node in a DFA represents a state of the parser; an arc represents
+a transition.  Transitions are either labeled with terminal symbols or
+with non-terminals.  When the parser decides to follow an arc labeled
+with a non-terminal, it is invoked recursively with the DFA representing
+the parsing rule for that as its initial state; when that DFA accepts,
+the parser that invoked it continues.  The parse tree constructed by the
+recursively called parser is inserted as a child in the current parse tree.
+
+The DFA's can be constructed automatically from a more conventional
+language description.  An extended LL(1) grammar (ELL(1)) is suitable.
+Certain restrictions make the parser's life easier: rules that can produce
+the empty string should be outlawed (there are other ways to put loops
+or optional parts in the language).  To avoid the need to construct
+FIRST sets, we can require that all but the last alternative of a rule
+(really: arc going out of a DFA's state) must begin with a terminal
+symbol.
+
+As an example, consider this grammar:
+
+expr:   term (OP term)*
+term:   CONSTANT | '(' expr ')'
+
+The DFA corresponding to the rule for expr is:
+
+------->.---term-->.------->
+    ^          |
+    |          |
+    \----OP----/
+
+The parse tree generated for the input a+b is:
+
+(expr: (term: (NAME: a)), (OP: +), (term: (NAME: b)))
+
+TODO(XXX): error recovery
+
+*/
 
 #ifdef Py_DEBUG
 extern int Py_DebugFlag;
@@ -19,7 +69,6 @@ extern int Py_DebugFlag;
 #define D(x)
 #endif
 
-
 /* STACK DATA TYPE */
 
 static void s_reset(stack *);
@@ -48,7 +97,6 @@ s_push(stack *s, dfa *d, node *parent)
 }
 
 #ifdef Py_DEBUG
-
 static void
 s_pop(stack *s)
 {
@@ -56,14 +104,10 @@ s_pop(stack *s)
         Py_FatalError("s_pop: parser stack underflow -- FATAL");
     s->s_top++;
 }
-
 #else /* !Py_DEBUG */
-
 #define s_pop(s) (s)->s_top++
-
 #endif
 
-
 /* PARSER CREATION */
 
 parser_state *
@@ -397,49 +441,3 @@ printtree(parser_state *ps)
 }
 
 #endif /* Py_DEBUG */
-
-/*
-
-Description
------------
-
-The parser's interface is different than usual: the function addtoken()
-must be called for each token in the input.  This makes it possible to
-turn it into an incremental parsing system later.  The parsing system
-constructs a parse tree as it goes.
-
-A parsing rule is represented as a Deterministic Finite-state Automaton
-(DFA).  A node in a DFA represents a state of the parser; an arc represents
-a transition.  Transitions are either labeled with terminal symbols or
-with non-terminals.  When the parser decides to follow an arc labeled
-with a non-terminal, it is invoked recursively with the DFA representing
-the parsing rule for that as its initial state; when that DFA accepts,
-the parser that invoked it continues.  The parse tree constructed by the
-recursively called parser is inserted as a child in the current parse tree.
-
-The DFA's can be constructed automatically from a more conventional
-language description.  An extended LL(1) grammar (ELL(1)) is suitable.
-Certain restrictions make the parser's life easier: rules that can produce
-the empty string should be outlawed (there are other ways to put loops
-or optional parts in the language).  To avoid the need to construct
-FIRST sets, we can require that all but the last alternative of a rule
-(really: arc going out of a DFA's state) must begin with a terminal
-symbol.
-
-As an example, consider this grammar:
-
-expr:   term (OP term)*
-term:   CONSTANT | '(' expr ')'
-
-The DFA corresponding to the rule for expr is:
-
-------->.---term-->.------->
-    ^          |
-    |          |
-    \----OP----/
-
-The parse tree generated for the input a+b is:
-
-(expr: (term: (NAME: a)), (OP: +), (term: (NAME: b)))
-
-*/
diff --git a/third_party/python/Parser/parsetok.c b/third_party/python/Parser/parsetok.c
index a201c1321..089971169 100644
--- a/third_party/python/Parser/parsetok.c
+++ b/third_party/python/Parser/parsetok.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/errcode.h"
 #include "third_party/python/Include/graminit.h"
 #include "third_party/python/Include/grammar.h"
@@ -10,9 +16,6 @@
 #include "third_party/python/Parser/tokenizer.h"
 /* clang-format off */
 
-/* Parser-tokenizer link implementation */
-
-/* Forward */
 static node *parsetok(struct tok_state *, grammar *, int, perrdetail *, int *);
 static int initerr(perrdetail *err_ret, PyObject * filename);
 
diff --git a/third_party/python/Parser/pgen.c b/third_party/python/Parser/pgen.c
index c3e06976c..c1ba4f4c2 100644
--- a/third_party/python/Parser/pgen.c
+++ b/third_party/python/Parser/pgen.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/grammar.h"
 #include "third_party/python/Include/metagrammar.h"
 #include "third_party/python/Include/node.h"
@@ -7,8 +13,35 @@
 #include "third_party/python/Include/token.h"
 /* clang-format off */
 
-/* Parser generator */
-/* For a description, see the comments at end of this file */
+/*
+
+Description
+-----------
+
+Input is a grammar in extended BNF (using * for repetition, + for
+at-least-once repetition, [] for optional parts, | for alternatives and
+() for grouping).  This has already been parsed and turned into a parse
+tree.
+
+Each rule is considered as a regular expression in its own right.
+It is turned into a Non-deterministic Finite Automaton (NFA), which
+is then turned into a Deterministic Finite Automaton (DFA), which is then
+optimized to reduce the number of states.  See [Aho&Ullman 77] chapter 3,
+or similar compiler books (this technique is more often used for lexical
+analyzers).
+
+The DFA's are used by the parser as parsing tables in a special way
+that's probably unique.  Before they are usable, the FIRST sets of all
+non-terminals are computed.
+
+Reference
+---------
+
+[Aho&Ullman 77]
+    Aho&Ullman, Principles of Compiler Design, Addison-Wesley 1977
+    (first edition)
+
+*/
 
 extern int Py_DebugFlag;
 extern int Py_IgnoreEnvironmentFlag; /* needed by Py_GETENV */
@@ -691,33 +724,3 @@ Py_pgen(node *n)
 {
   return pgen(n);
 }
-
-/*
-
-Description
------------
-
-Input is a grammar in extended BNF (using * for repetition, + for
-at-least-once repetition, [] for optional parts, | for alternatives and
-() for grouping).  This has already been parsed and turned into a parse
-tree.
-
-Each rule is considered as a regular expression in its own right.
-It is turned into a Non-deterministic Finite Automaton (NFA), which
-is then turned into a Deterministic Finite Automaton (DFA), which is then
-optimized to reduce the number of states.  See [Aho&Ullman 77] chapter 3,
-or similar compiler books (this technique is more often used for lexical
-analyzers).
-
-The DFA's are used by the parser as parsing tables in a special way
-that's probably unique.  Before they are usable, the FIRST sets of all
-non-terminals are computed.
-
-Reference
----------
-
-[Aho&Ullman 77]
-    Aho&Ullman, Principles of Compiler Design, Addison-Wesley 1977
-    (first edition)
-
-*/
diff --git a/third_party/python/Parser/pgenmain.c b/third_party/python/Parser/pgenmain.c
index f13de46d3..e2cf524b8 100644
--- a/third_party/python/Parser/pgenmain.c
+++ b/third_party/python/Parser/pgenmain.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #define PGEN
 #include "libc/log/log.h"
 #include "third_party/python/Include/grammar.h"
@@ -10,8 +16,6 @@
 #include "third_party/python/Include/pymem.h"
 /* clang-format off */
 
-/* Parser generator main program */
-
 /* This expects a filename containing the grammar as argv[1] (UNIX)
    or asks the console for such a file name (THINK C).
    It writes its output on two files in the current directory:
diff --git a/third_party/python/Parser/printgrammar.c b/third_party/python/Parser/printgrammar.c
index dfb684e92..b1f97a80f 100644
--- a/third_party/python/Parser/printgrammar.c
+++ b/third_party/python/Parser/printgrammar.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #define PGEN
 #include "third_party/python/Include/grammar.h"
 #include "third_party/python/Include/pgenheaders.h"
diff --git a/third_party/python/Parser/tokenizer.c b/third_party/python/Parser/tokenizer.c
index b196277af..8e232522d 100644
--- a/third_party/python/Parser/tokenizer.c
+++ b/third_party/python/Parser/tokenizer.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/calls.h"
 #include "third_party/python/Include/errcode.h"
 #include "third_party/python/Include/pgenheaders.h"
diff --git a/third_party/python/Parser/tokenizer_pgen.c b/third_party/python/Parser/tokenizer_pgen.c
index 663788411..03bbe041b 100644
--- a/third_party/python/Parser/tokenizer_pgen.c
+++ b/third_party/python/Parser/tokenizer_pgen.c
@@ -1,3 +1,2 @@
-/* clang-format off */
 #define PGEN
 #include "third_party/python/Parser/tokenizer.c"
diff --git a/third_party/python/Programs/_freeze_importlib.c b/third_party/python/Programs/_freeze_importlib.c
index 1069966a1..e62f5ca42 100644
--- a/third_party/python/Programs/_freeze_importlib.c
+++ b/third_party/python/Programs/_freeze_importlib.c
@@ -1,3 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
+/* clang-format off */
+
 /* This is built as a stand-alone executable by the Makefile, and helps turn
    Lib/importlib/_bootstrap.py into a frozen module in Python/importlib.h
 */
diff --git a/third_party/python/Programs/_testembed.c b/third_party/python/Programs/_testembed.c
index 9eaa4e183..9a8b628b9 100644
--- a/third_party/python/Programs/_testembed.c
+++ b/third_party/python/Programs/_testembed.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/stdio/stdio.h"
 #include "third_party/python/Include/ceval.h"
 #include "third_party/python/Include/fileutils.h"
diff --git a/third_party/python/Programs/python.c b/third_party/python/Programs/python.c
index e5481e84f..d88da5fd7 100644
--- a/third_party/python/Programs/python.c
+++ b/third_party/python/Programs/python.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/stdio/stdio.h"
 #include "libc/unicode/locale.h"
 #include "third_party/python/Include/fileutils.h"
diff --git a/third_party/python/Python/Python-ast.c b/third_party/python/Python/Python-ast.c
index bec3305b7..4093909ad 100644
--- a/third_party/python/Python/Python-ast.c
+++ b/third_party/python/Python/Python-ast.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/Python-ast.h"
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/boolobject.h"
diff --git a/third_party/python/Python/_warnings.c b/third_party/python/Python/_warnings.c
index 569f288bb..f5acf4a34 100644
--- a/third_party/python/Python/_warnings.c
+++ b/third_party/python/Python/_warnings.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/boolobject.h"
 #include "third_party/python/Include/dictobject.h"
diff --git a/third_party/python/Python/asdl.c b/third_party/python/Python/asdl.c
index 6c90bfa71..e5947f50e 100644
--- a/third_party/python/Python/asdl.c
+++ b/third_party/python/Python/asdl.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/asdl.h"
 #include "third_party/python/Include/pyerrors.h"
 /* clang-format off */
diff --git a/third_party/python/Python/ast.c b/third_party/python/Python/ast.c
index 4784c4050..d22815260 100644
--- a/third_party/python/Python/ast.c
+++ b/third_party/python/Python/ast.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/assert.h"
 #include "libc/errno.h"
 #include "libc/fmt/fmt.h"
diff --git a/third_party/python/Python/bltinmodule.c b/third_party/python/Python/bltinmodule.c
index c9dfa6945..10dfdfa80 100644
--- a/third_party/python/Python/bltinmodule.c
+++ b/third_party/python/Python/bltinmodule.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/calls.h"
 #include "third_party/python/Include/Python-ast.h"
 #include "third_party/python/Include/abstract.h"
diff --git a/third_party/python/Python/ceval.c b/third_party/python/Python/ceval.c
index b7577d544..0273526e5 100644
--- a/third_party/python/Python/ceval.c
+++ b/third_party/python/Python/ceval.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #define PY_LOCAL_AGGRESSIVE
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/boolobject.h"
diff --git a/third_party/python/Python/ceval_gil.inc b/third_party/python/Python/ceval_gil.inc
index fdd69e910..383dc0cb9 100644
--- a/third_party/python/Python/ceval_gil.inc
+++ b/third_party/python/Python/ceval_gil.inc
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Python/condvar.h"
 /* clang-format off */
 
diff --git a/third_party/python/Python/clinic/bltinmodule.inc b/third_party/python/Python/clinic/bltinmodule.inc
index 37824993e..aaa3318ec 100644
--- a/third_party/python/Python/clinic/bltinmodule.inc
+++ b/third_party/python/Python/clinic/bltinmodule.inc
@@ -1,4 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
+
 /*[clinic input]
 preserve
 [clinic start generated code]*/
diff --git a/third_party/python/Python/clinic/import.inc b/third_party/python/Python/clinic/import.inc
index 0b94ee096..2087ab4fb 100644
--- a/third_party/python/Python/clinic/import.inc
+++ b/third_party/python/Python/clinic/import.inc
@@ -1,4 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/pymacro.h"
+
 /*[clinic input]
 preserve
 [clinic start generated code]*/
diff --git a/third_party/python/Python/codecs.c b/third_party/python/Python/codecs.c
index 25e27879e..370bf5e72 100644
--- a/third_party/python/Python/codecs.c
+++ b/third_party/python/Python/codecs.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/bytesobject.h"
 #include "third_party/python/Include/ceval.h"
diff --git a/third_party/python/Python/compile.c b/third_party/python/Python/compile.c
index dbafa214a..3cf751b30 100644
--- a/third_party/python/Python/compile.c
+++ b/third_party/python/Python/compile.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/Python-ast.h"
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/ast.h"
diff --git a/third_party/python/Python/dtoa.c b/third_party/python/Python/dtoa.c
index 0ccb0ff14..9a402c9fe 100644
--- a/third_party/python/Python/dtoa.c
+++ b/third_party/python/Python/dtoa.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/assert.h"
 #include "libc/errno.h"
 #include "libc/math.h"
diff --git a/third_party/python/Python/dynamic_annotations.c b/third_party/python/Python/dynamic_annotations.c
index 35824fd33..3f39cb553 100644
--- a/third_party/python/Python/dynamic_annotations.c
+++ b/third_party/python/Python/dynamic_annotations.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/dynamic_annotations.h"
 /* clang-format off */
 
diff --git a/third_party/python/Python/dynload_dl.c b/third_party/python/Python/dynload_dl.c
index a42734d73..ca2e5695e 100644
--- a/third_party/python/Python/dynload_dl.c
+++ b/third_party/python/Python/dynload_dl.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/pyerrors.h"
 #include "third_party/python/Python/importdl.h"
 /* clang-format off */
diff --git a/third_party/python/Python/dynload_shlib.c b/third_party/python/Python/dynload_shlib.c
index 5eb046b58..f5bbfb716 100644
--- a/third_party/python/Python/dynload_shlib.c
+++ b/third_party/python/Python/dynload_shlib.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/weirdtypes.h"
 #include "libc/runtime/dlfcn.h"
 #include "third_party/python/Include/fileutils.h"
diff --git a/third_party/python/Python/dynload_stub.c b/third_party/python/Python/dynload_stub.c
index 41b7fb978..de551cf21 100644
--- a/third_party/python/Python/dynload_stub.c
+++ b/third_party/python/Python/dynload_stub.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Python/importdl.h"
 /* clang-format off */
 
diff --git a/third_party/python/Python/dynload_win.c b/third_party/python/Python/dynload_win.c
index ec4fc70fc..052eefbfa 100644
--- a/third_party/python/Python/dynload_win.c
+++ b/third_party/python/Python/dynload_win.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/patchlevel.h"
 #include "third_party/python/Python/importdl.h"
 /* clang-format off */
diff --git a/third_party/python/Python/errors.c b/third_party/python/Python/errors.c
index a297a4c64..f4a336c69 100644
--- a/third_party/python/Python/errors.c
+++ b/third_party/python/Python/errors.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/errno.h"
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/dictobject.h"
diff --git a/third_party/python/Python/fileutils.c b/third_party/python/Python/fileutils.c
index 330a3d8d2..892aee18c 100644
--- a/third_party/python/Python/fileutils.c
+++ b/third_party/python/Python/fileutils.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/calls.h"
 #include "libc/calls/ioctl.h"
 #include "libc/dce.h"
diff --git a/third_party/python/Python/formatter_unicode.c b/third_party/python/Python/formatter_unicode.c
index 2f2d0146e..4ffb80010 100644
--- a/third_party/python/Python/formatter_unicode.c
+++ b/third_party/python/Python/formatter_unicode.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/math.h"
 #include "libc/unicode/locale.h"
 #include "third_party/python/Include/abstract.h"
diff --git a/third_party/python/Python/frozen.c b/third_party/python/Python/frozen.c
index f9f445dff..f99857139 100644
--- a/third_party/python/Python/frozen.c
+++ b/third_party/python/Python/frozen.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/import.h"
 #include "third_party/python/Python/importlib.inc"
 #include "third_party/python/Python/importlib_external.inc"
diff --git a/third_party/python/Python/frozenmain.c b/third_party/python/Python/frozenmain.c
index 5c2d1e18a..e94925fcf 100644
--- a/third_party/python/Python/frozenmain.c
+++ b/third_party/python/Python/frozenmain.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/calls.h"
 #include "libc/stdio/stdio.h"
 #include "libc/unicode/locale.h"
diff --git a/third_party/python/Python/future.c b/third_party/python/Python/future.c
index 20553144e..3879ad710 100644
--- a/third_party/python/Python/future.c
+++ b/third_party/python/Python/future.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/Python-ast.h"
 #include "third_party/python/Include/code.h"
 #include "third_party/python/Include/graminit.h"
diff --git a/third_party/python/Python/getargs.c b/third_party/python/Python/getargs.c
index 4a7793d4c..b448bff4e 100644
--- a/third_party/python/Python/getargs.c
+++ b/third_party/python/Python/getargs.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/assert.h"
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/bytearrayobject.h"
diff --git a/third_party/python/Python/getcompiler.c b/third_party/python/Python/getcompiler.c
index 5eaa3bebe..08e7b3a63 100644
--- a/third_party/python/Python/getcompiler.c
+++ b/third_party/python/Python/getcompiler.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/pylifecycle.h"
 /* clang-format off */
 
diff --git a/third_party/python/Python/getcopyright.c b/third_party/python/Python/getcopyright.c
index ca1dee7dd..4f1228c3f 100644
--- a/third_party/python/Python/getcopyright.c
+++ b/third_party/python/Python/getcopyright.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/pylifecycle.h"
 /* clang-format off */
 
diff --git a/third_party/python/Python/getopt.c b/third_party/python/Python/getopt.c
index b078b7da3..df4c5bf48 100644
--- a/third_party/python/Python/getopt.c
+++ b/third_party/python/Python/getopt.c
@@ -1,7 +1,14 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/stdio/stdio.h"
 #include "libc/str/str.h"
 #include "third_party/python/Include/pygetopt.h"
 /* clang-format off */
+
 /*---------------------------------------------------------------------------*
  * <RCS keywords>
  *
diff --git a/third_party/python/Python/getplatform.c b/third_party/python/Python/getplatform.c
index 006c70004..79b628def 100644
--- a/third_party/python/Python/getplatform.c
+++ b/third_party/python/Python/getplatform.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
 
 #ifndef PLATFORM
diff --git a/third_party/python/Python/getversion.c b/third_party/python/Python/getversion.c
index 5879086bd..404070a4a 100644
--- a/third_party/python/Python/getversion.c
+++ b/third_party/python/Python/getversion.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/patchlevel.h"
 #include "third_party/python/Include/pyerrors.h"
 #include "third_party/python/Include/pylifecycle.h"
diff --git a/third_party/python/Python/graminit.c b/third_party/python/Python/graminit.c
index 0b149ef9f..6d9095db6 100644
--- a/third_party/python/Python/graminit.c
+++ b/third_party/python/Python/graminit.c
@@ -1,5 +1,13 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
+
 /* Generated by Parser/pgen */
+
 #include "third_party/python/Include/pgenheaders.h"
 #include "third_party/python/Include/grammar.h"
 extern grammar _PyParser_Grammar;
diff --git a/third_party/python/Python/import.c b/third_party/python/Python/import.c
index 67bc63251..076e37c38 100644
--- a/third_party/python/Python/import.c
+++ b/third_party/python/Python/import.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/Python-ast.h"
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/boolobject.h"
diff --git a/third_party/python/Python/importdl.c b/third_party/python/Python/importdl.c
index b696aaf9a..881880ab7 100644
--- a/third_party/python/Python/importdl.c
+++ b/third_party/python/Python/importdl.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/bytesobject.h"
 #include "third_party/python/Include/import.h"
diff --git a/third_party/python/Python/importlib.inc b/third_party/python/Python/importlib.inc
index faa2f0159..325c155a2 100644
--- a/third_party/python/Python/importlib.inc
+++ b/third_party/python/Python/importlib.inc
@@ -1,5 +1,13 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
+
 /* Auto-generated by Programs/_freeze_importlib.c */
+
 const unsigned char _Py_M__importlib[] = {
     99,0,0,0,0,0,0,0,0,0,0,0,0,4,0,0,
     0,64,0,0,0,115,208,1,0,0,100,0,90,0,100,1,
diff --git a/third_party/python/Python/importlib_external.inc b/third_party/python/Python/importlib_external.inc
index 886aa6800..c801b60d1 100644
--- a/third_party/python/Python/importlib_external.inc
+++ b/third_party/python/Python/importlib_external.inc
@@ -1,4 +1,13 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
+/* clang-format off */
+
 /* Auto-generated by Programs/_freeze_importlib.c */
+
 const unsigned char _Py_M__importlib_external[] = {
     99,0,0,0,0,0,0,0,0,0,0,0,0,5,0,0,
     0,64,0,0,0,115,248,1,0,0,100,0,90,0,100,91,
diff --git a/third_party/python/Python/marshal.c b/third_party/python/Python/marshal.c
index 18999f4e4..652120fee 100644
--- a/third_party/python/Python/marshal.c
+++ b/third_party/python/Python/marshal.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #define PY_SSIZE_T_CLEAN
 #include "dsp/mpeg/video.h"
 #include "libc/calls/calls.h"
diff --git a/third_party/python/Python/modsupport.c b/third_party/python/Python/modsupport.c
index e5c843c2b..5dad7dfb1 100644
--- a/third_party/python/Python/modsupport.c
+++ b/third_party/python/Python/modsupport.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/assert.h"
 #include "third_party/python/Include/ceval.h"
 #include "third_party/python/Include/complexobject.h"
diff --git a/third_party/python/Python/mysnprintf.c b/third_party/python/Python/mysnprintf.c
index 9bc535e71..0a0fc3307 100644
--- a/third_party/python/Python/mysnprintf.c
+++ b/third_party/python/Python/mysnprintf.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/assert.h"
 #include "libc/fmt/fmt.h"
 #include "third_party/python/Include/pyerrors.h"
diff --git a/third_party/python/Python/mystrtoul.c b/third_party/python/Python/mystrtoul.c
index ecab76377..66440642b 100644
--- a/third_party/python/Python/mystrtoul.c
+++ b/third_party/python/Python/mystrtoul.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/errno.h"
 #include "libc/limits.h"
 #include "third_party/python/Include/longobject.h"
diff --git a/third_party/python/Python/opcode_targets.inc b/third_party/python/Python/opcode_targets.inc
index 26869fef5..4a1fe4d6e 100644
--- a/third_party/python/Python/opcode_targets.inc
+++ b/third_party/python/Python/opcode_targets.inc
@@ -1,4 +1,11 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
+
 static void *opcode_targets[256] = {
     &&_unknown_opcode,
     &&TARGET_POP_TOP,
diff --git a/third_party/python/Python/peephole.c b/third_party/python/Python/peephole.c
index 8e825cdf3..7b4db7082 100644
--- a/third_party/python/Python/peephole.c
+++ b/third_party/python/Python/peephole.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/Python-ast.h"
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/ast.h"
diff --git a/third_party/python/Python/pyarena.c b/third_party/python/Python/pyarena.c
index 094214f69..b49f42dbc 100644
--- a/third_party/python/Python/pyarena.c
+++ b/third_party/python/Python/pyarena.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/assert.h"
 #include "libc/mem/mem.h"
 #include "third_party/python/Include/listobject.h"
diff --git a/third_party/python/Python/pyfpe.c b/third_party/python/Python/pyfpe.c
index ed4464094..bf7de3823 100644
--- a/third_party/python/Python/pyfpe.c
+++ b/third_party/python/Python/pyfpe.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
 #include "third_party/python/pyconfig.h"
 #include "third_party/python/Include/pyfpe.h"
diff --git a/third_party/python/Python/pyhash.c b/third_party/python/Python/pyhash.c
index 995e479fb..6d0f6c2c9 100644
--- a/third_party/python/Python/pyhash.c
+++ b/third_party/python/Python/pyhash.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/pyhash.h"
 /* clang-format off */
 
diff --git a/third_party/python/Python/pylifecycle.c b/third_party/python/Python/pylifecycle.c
index 98a45d73d..ec5e5bcc5 100644
--- a/third_party/python/Python/pylifecycle.c
+++ b/third_party/python/Python/pylifecycle.c
@@ -1,5 +1,5 @@
 /*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
-│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
 ╞══════════════════════════════════════════════════════════════════════════════╡
 │ Python 3                                                                     │
 │ https://docs.python.org/3/license.html                                       │
diff --git a/third_party/python/Python/pymath.c b/third_party/python/Python/pymath.c
index f9ded77a5..c73476f82 100644
--- a/third_party/python/Python/pymath.c
+++ b/third_party/python/Python/pymath.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/pyconfig.h"
 /* clang-format off */
 
diff --git a/third_party/python/Python/pystate.c b/third_party/python/Python/pystate.c
index 95a119db1..4eb62e431 100644
--- a/third_party/python/Python/pystate.c
+++ b/third_party/python/Python/pystate.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/bits/pushpop.h"
 #include "libc/runtime/dlfcn.h"
 #include "third_party/python/Include/ceval.h"
diff --git a/third_party/python/Python/pystrcmp.c b/third_party/python/Python/pystrcmp.c
index 3f9e30cd8..192a16b5e 100644
--- a/third_party/python/Python/pystrcmp.c
+++ b/third_party/python/Python/pystrcmp.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/object.h"
 #include "third_party/python/Include/pyctype.h"
 /* clang-format off */
diff --git a/third_party/python/Python/pystrhex.c b/third_party/python/Python/pystrhex.c
index b044780c9..bf51a6029 100644
--- a/third_party/python/Python/pystrhex.c
+++ b/third_party/python/Python/pystrhex.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/assert.h"
 #include "third_party/python/Include/bytesobject.h"
 #include "third_party/python/Include/codecs.h"
diff --git a/third_party/python/Python/pystrtod.c b/third_party/python/Python/pystrtod.c
index 6c8f9b514..91050fc83 100644
--- a/third_party/python/Python/pystrtod.c
+++ b/third_party/python/Python/pystrtod.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/assert.h"
 #include "libc/errno.h"
 #include "libc/fmt/fmt.h"
diff --git a/third_party/python/Python/pythonrun.c b/third_party/python/Python/pythonrun.c
index 7524d9cd8..a9d7f354c 100644
--- a/third_party/python/Python/pythonrun.c
+++ b/third_party/python/Python/pythonrun.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/unicode/locale.h"
 #include "third_party/python/Include/Python-ast.h"
 #include "third_party/python/Include/abstract.h"
diff --git a/third_party/python/Python/pytime.c b/third_party/python/Python/pytime.c
index fc0e1c31a..25ae99e26 100644
--- a/third_party/python/Python/pytime.c
+++ b/third_party/python/Python/pytime.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/weirdtypes.h"
 #include "libc/math.h"
 #include "libc/sysv/consts/clock.h"
diff --git a/third_party/python/Python/random.c b/third_party/python/Python/random.c
index 2360e50a8..3526993d7 100644
--- a/third_party/python/Python/random.c
+++ b/third_party/python/Python/random.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/calls.h"
 #include "libc/calls/weirdtypes.h"
 #include "libc/errno.h"
diff --git a/third_party/python/Python/sigcheck.c b/third_party/python/Python/sigcheck.c
index bd9438d0a..004ee4bd1 100644
--- a/third_party/python/Python/sigcheck.c
+++ b/third_party/python/Python/sigcheck.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/intrcheck.h"
 #include "third_party/python/Include/pyerrors.h"
 /* clang-format off */
diff --git a/third_party/python/Python/structmember.c b/third_party/python/Python/structmember.c
index 1e7076aa1..b627b2c22 100644
--- a/third_party/python/Python/structmember.c
+++ b/third_party/python/Python/structmember.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/boolobject.h"
 #include "third_party/python/Include/floatobject.h"
 #include "third_party/python/Include/longobject.h"
diff --git a/third_party/python/Python/symtable.c b/third_party/python/Python/symtable.c
index 845b75509..9b46cdbde 100644
--- a/third_party/python/Python/symtable.c
+++ b/third_party/python/Python/symtable.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/Python-ast.h"
 #include "third_party/python/Include/abstract.h"
 #include "third_party/python/Include/ceval.h"
diff --git a/third_party/python/Python/sysmodule.c b/third_party/python/Python/sysmodule.c
index 041f0f195..2757fe41c 100644
--- a/third_party/python/Python/sysmodule.c
+++ b/third_party/python/Python/sysmodule.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/calls.h"
 #include "libc/dce.h"
 #include "libc/runtime/runtime.h"
diff --git a/third_party/python/Python/thread.c b/third_party/python/Python/thread.c
index 9a2bd71a4..cc108aa2d 100644
--- a/third_party/python/Python/thread.c
+++ b/third_party/python/Python/thread.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/assert.h"
 #include "third_party/python/Include/pyerrors.h"
 #include "third_party/python/Include/pymacro.h"
diff --git a/third_party/python/Python/thread_pthread.inc b/third_party/python/Python/thread_pthread.inc
index e4de1bf94..6412c0bd9 100644
--- a/third_party/python/Python/thread_pthread.inc
+++ b/third_party/python/Python/thread_pthread.inc
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 /* clang-format off */
 
 /* Posix threads interface */
diff --git a/third_party/python/Python/traceback.c b/third_party/python/Python/traceback.c
index 633b727f1..403c25744 100644
--- a/third_party/python/Python/traceback.c
+++ b/third_party/python/Python/traceback.c
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/calls.h"
 #include "libc/calls/weirdtypes.h"
 #include "third_party/python/Include/abstract.h"
diff --git a/third_party/python/Python/wordcode_helpers.inc b/third_party/python/Python/wordcode_helpers.inc
index cfa3eb36e..49252be05 100644
--- a/third_party/python/Python/wordcode_helpers.inc
+++ b/third_party/python/Python/wordcode_helpers.inc
@@ -1,3 +1,9 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Python 3                                                                     │
+│ https://docs.python.org/3/license.html                                       │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #include "third_party/python/Include/code.h"
 /* clang-format off */