Make numerous improvements

- Python static hello world now 1.8mb
- Python static fully loaded now 10mb
- Python HTTPS client now uses MbedTLS
- Python REPL now completes import stmts
- Increase stack size for Python for now
- Begin synthesizing posixpath and ntpath
- Restore Python \N{UNICODE NAME} support
- Restore Python NFKD symbol normalization
- Add optimized code path for Intel SHA-NI
- Get more Python unit tests passing faster
- Get Python help() pagination working on NT
- Python hashlib now supports MbedTLS PBKDF2
- Make memcpy/memmove/memcmp/bcmp/etc. faster
- Add Mersenne Twister and Vigna to LIBC_RAND
- Provide privileged __printf() for error code
- Fix zipos opendir() so that it reports ENOTDIR
- Add basic chmod() implementation for Windows NT
- Add Cosmo's best functions to Python cosmo module
- Pin function trace indent depth to that of caller
- Show memory diagram on invalid access in MODE=dbg
- Differentiate stack overflow on crash in MODE=dbg
- Add stb_truetype and tools for analyzing font files
- Upgrade to UNICODE 13 and reduce its binary footprint
- COMPILE.COM now logs resource usage of build commands
- Start implementing basic poll() support on bare metal
- Set getauxval(AT_EXECFN) to GetModuleFileName() on NT
- Add descriptions to strerror() in non-TINY build modes
- Add COUNTBRANCH() macro to help with micro-optimizations
- Make error / backtrace / asan / memory code more unbreakable
- Add fast perfect C implementation of μ-Law and a-Law audio codecs
- Make strtol() functions consistent with other libc implementations
- Improve Linenoise implementation (see also github.com/jart/bestline)
- COMPILE.COM now suppresses stdout/stderr of successful build commands

third_party/python/Modules/socketmodule.c

@@ -1027,8 +1027,7 @@ setipaddr(const char *name, struct sockaddr *addr_ret, size_t addr_ret_size, int
 {
     struct addrinfo hints, *res;
     int error;
-
-    memset((void *) addr_ret, '\0', sizeof(*addr_ret));
+    bzero(addr_ret, sizeof(*addr_ret));
     if (name[0] == '\0') {
         int siz;
         bzero(&hints, sizeof(hints));
@@ -1086,7 +1085,7 @@ setipaddr(const char *name, struct sockaddr *addr_ret, size_t addr_ret_size, int
             return -1;
         }
         sin = (struct sockaddr_in *)addr_ret;
-        memset((void *) sin, '\0', sizeof(*sin));
+        bzero(sin, sizeof(*sin));
         sin->sin_family = AF_INET;
 #ifdef HAVE_SOCKADDR_SA_LEN
         sin->sin_len = sizeof(*sin);
@@ -5147,7 +5146,7 @@ socket_gethostbyname_ex(PyObject *self, PyObject *args)
 #elif defined(HAVE_GETHOSTBYNAME_R_5_ARG)
     h = gethostbyname_r(name, &hp_allocated, buf, buf_len, &errnop);
 #else /* HAVE_GETHOSTBYNAME_R_3_ARG */
-    memset((void *) &data, '\0', sizeof(data));
+    bzero(&data, sizeof(data));
     result = gethostbyname_r(name, &hp_allocated, &data);
     h = (result != 0) ? NULL : &hp_allocated;
 #endif
@@ -5245,7 +5244,7 @@ socket_gethostbyaddr(PyObject *self, PyObject *args)
     h = gethostbyaddr_r(ap, al, af,
                         &hp_allocated, buf, buf_len, &errnop);
 #else /* HAVE_GETHOSTBYNAME_R_3_ARG */
-    memset((void *) &data, '\0', sizeof(data));
+    bzero(&data, sizeof(data));
     result = gethostbyaddr_r(ap, al, af, &hp_allocated, &data);
     h = (result != 0) ? NULL : &hp_allocated;
 #endif
@@ -5838,7 +5837,7 @@ socket_inet_ntop(PyObject *self, PyObject *args)
 #endif
 
     /* Guarantee NUL-termination for PyUnicode_FromString() below */
-    memset((void *) &ip[0], '\0', sizeof(ip));
+    bzero(&ip[0], sizeof(ip));
 
     if (!PyArg_ParseTuple(args, "iy*:inet_ntop", &af, &packed_ip)) {
         return NULL;
@@ -5893,7 +5892,7 @@ socket_inet_ntop(PyObject *self, PyObject *args)
 #endif
 
     /* Guarantee NUL-termination for PyUnicode_FromString() below */
-    memset((void *) &ip[0], '\0', sizeof(ip));
+    bzero(&ip[0], sizeof(ip));
 
     if (!PyArg_ParseTuple(args, "iy*:inet_ntop", &af, &packed_ip)) {
         return NULL;