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/Python/import.c

@@ -963,10 +963,8 @@ static PyObject *
 _imp__fix_co_filename_impl(PyObject *module, PyCodeObject *code,
                            PyObject *path)
 /*[clinic end generated code: output=1d002f100235587d input=895ba50e78b82f05]*/
-
 {
     update_compiled_module(code, path);
-
     Py_RETURN_NONE;
 }
 
@@ -2169,11 +2167,8 @@ int
 PyImport_AppendInittab(const char *name, PyObject* (*initfunc)(void))
 {
     struct _inittab newtab[2];
-
-    memset(newtab, '\0', sizeof newtab);
-
+    bzero(newtab, sizeof newtab);
     newtab[0].name = name;
     newtab[0].initfunc = initfunc;
-
     return PyImport_ExtendInittab(newtab);
 }