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/collections/__init__.py

@@ -18,10 +18,14 @@ __all__ = ['deque', 'defaultdict', 'namedtuple', 'UserDict', 'UserList',
            'UserString', 'Counter', 'OrderedDict', 'ChainMap']
 
 # For backwards compatibility, continue to make the collections ABCs
-# available through the collections module.
-from _collections_abc import *
-import _collections_abc
-__all__ += _collections_abc.__all__
+# available through the collections module. But don't mandate it, in
+# cases where we're compiling with PYOBJ.COM.
+try:
+    from _collections_abc import *
+    import _collections_abc
+    __all__ += _collections_abc.__all__
+except ImportError:
+    pass
 
 from operator import itemgetter as _itemgetter, eq as _eq
 from keyword import iskeyword as _iskeyword
@@ -1242,83 +1246,5 @@ class UserString(Sequence):
     def upper(self): return self.__class__(self.data.upper())
     def zfill(self, width): return self.__class__(self.data.zfill(width))
 
-
 if __name__ == 'PYOBJ.COM':
     import _collections
-    ABCMeta = 0
-    AsyncGenerator = 0
-    AsyncIterable = 0
-    AsyncIterator = 0
-    Awaitable = 0
-    ByteString = 0
-    Callable = 0
-    ChainMap = 0
-    Collection = 0
-    Container = 0
-    Coroutine = 0
-    Counter = 0
-    Generator = 0
-    Hashable = 0
-    ItemsView = 0
-    Iterable = 0
-    Iterator = 0
-    KeysView = 0
-    Mapping = 0
-    MappingView = 0
-    MutableMapping = 0
-    MutableSequence = 0
-    MutableSet = 0
-    OrderedDict = 0
-    Reversible = 0
-    Sequence = 0
-    Set = 0
-    Sized = 0
-    UserDict = 0
-    UserList = 0
-    UserString = 0
-    ValuesView = 0
-    _Link = 0
-    _OrderedDictItemsView = 0
-    _OrderedDictKeysView = 0
-    _OrderedDictValuesView = 0
-    _chain = 0
-    _check_methods = 0
-    _class_template = 0
-    _collections_abc = 0
-    _count_elements = 0
-    _eq = 0
-    _field_template = 0
-    _heapq = 0
-    _iskeyword = 0
-    _itemgetter = 0
-    _proxy = 0
-    _recursive_repr = 0
-    _repeat = 0
-    _repr_template = 0
-    _starmap = 0
-    _sys = 0
-    abstractmethod = 0
-    async_generator = 0
-    bytearray_iterator = 0
-    bytes_iterator = 0
-    coroutine = 0
-    defaultdict = 0
-    deque = 0
-    dict_itemiterator = 0
-    dict_items = 0
-    dict_keyiterator = 0
-    dict_keys = 0
-    dict_valueiterator = 0
-    dict_values = 0
-    generator = 0
-    list_iterator = 0
-    list_reverseiterator = 0
-    longrange_iterator = 0
-    mappingproxy = 0
-    namedtuple = 0
-    range_iterator = 0
-    set_iterator = 0
-    str_iterator = 0
-    sys = 0
-    tuple_iterator = 0
-    zip_iterator = 0