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/Lib/test/test_code.py

@@ -102,7 +102,7 @@ consts: ('None',)
 
 """
 
-import _cosmo
+import cosmo
 import inspect
 import sys
 try:
@@ -299,7 +299,7 @@ if check_impl_detail(cpython=True) and ctypes is not None:
             # away, so we eval a lambda.
             return eval('lambda:42')
 
-        @unittest.skipUnless(_cosmo.MODE == "dbg", "requires APE debug build")
+        @unittest.skipUnless(cosmo.MODE == "dbg", "requires APE debug build")
         def test_get_non_code(self):
             f = self.get_func()
 
@@ -308,7 +308,7 @@ if check_impl_detail(cpython=True) and ctypes is not None:
             self.assertRaises(SystemError, GetExtra, 42, FREE_INDEX,
                               ctypes.c_voidp(100))
 
-        @unittest.skipUnless(_cosmo.MODE == "dbg", "requires APE debug build")
+        @unittest.skipUnless(cosmo.MODE == "dbg", "requires APE debug build")
         def test_bad_index(self):
             f = self.get_func()
             self.assertRaises(SystemError, SetExtra, f.__code__,