python-3.6.zip added from Github

README.cosmo contains the necessary links.

third_party/python/PC/bdist_wininst/archive.h

@@ -0,0 +1,104 @@
+/*
+  IMPORTANT NOTE: IF THIS FILE IS CHANGED, PCBUILD\BDIST_WININST.VCXPROJ MUST
+  BE REBUILT AS WELL.
+
+  IF CHANGES TO THIS FILE ARE CHECKED IN, THE RECOMPILED BINARIES MUST BE
+  CHECKED IN AS WELL!
+*/
+
+#pragma pack(1)
+
+/* zip-archive headers
+ * See: http://www.pkware.com/appnote.html
+ */
+
+struct eof_cdir {
+    long tag;           /* must be 0x06054b50 */
+    short disknum;
+    short firstdisk;
+    short nTotalCDirThis;
+    short nTotalCDir;
+    long nBytesCDir;
+    long ofsCDir;
+    short commentlen;
+};
+
+struct cdir {
+    long tag;           /* must be 0x02014b50 */
+    short version_made;
+    short version_extract;
+    short gp_bitflag;
+    short comp_method;
+    short last_mod_file_time;
+    short last_mod_file_date;
+    long crc32;
+    long comp_size;
+    long uncomp_size;
+    short fname_length;
+    short extra_length;
+    short comment_length;
+    short disknum_start;
+    short int_file_attr;
+    long ext_file_attr;
+    long ofs_local_header;
+};
+
+struct fhdr {
+    long tag;           /* must be 0x04034b50 */
+    short version_needed;
+    short flags;
+    short method;
+    short last_mod_file_time;
+    short last_mod_file_date;
+    long crc32;
+    long comp_size;
+    long uncomp_size;
+    short fname_length;
+    short extra_length;
+};
+
+
+struct meta_data_hdr {
+    int tag;
+    int uncomp_size;
+    int bitmap_size;
+};
+
+#pragma pack()
+
+/* installation scheme */
+
+typedef struct tagSCHEME {
+    char *name;
+    char *prefix;
+} SCHEME;
+
+typedef int (*NOTIFYPROC)(int code, LPSTR text, ...);
+
+extern BOOL
+extract_file(char *dst, char *src, int method, int comp_size,
+             int uncomp_size, NOTIFYPROC notify);
+
+extern BOOL
+unzip_archive(SCHEME *scheme, char *dirname, char *data,
+              DWORD size,  NOTIFYPROC notify);
+
+extern char *
+map_new_file(DWORD flags, char *filename, char
+             *pathname_part, int size,
+             WORD wFatDate, WORD wFatTime,
+             NOTIFYPROC callback);
+
+extern BOOL
+ensure_directory (char *pathname, char *new_part,
+                  NOTIFYPROC callback);
+
+/* codes for NOITIFYPROC */
+#define DIR_CREATED 1
+#define CAN_OVERWRITE 2
+#define FILE_CREATED 3
+#define ZLIB_ERROR 4
+#define SYSTEM_ERROR 5
+#define NUM_FILES 6
+#define FILE_OVERWRITTEN 7
+