python / cpython

Fix the wording in the documentation of `async for` to correctly describe asynchronous iterables.  This fix is relevant for version 3.7 onward.

…GH-22736)

This allows easier Enum construction in unusual cases, such as including dynamic member definitions into a class definition:

# created dynamically
foo_defines = {'FOO_CAT': 'aloof', 'BAR_DOG': 'friendly', 'FOO_HORSE': 'big'}

class Foo(Enum):
    vars().update({
            k: v
            for k, v in foo_defines.items()
            if k.startswith('FOO_')
            })
    def upper(self):
        # example method
        return self.value.upper()

The default for auto() is to return an integer, which doesn't work for `StrEnum`.  The new `_generate_next_value_` for `StrEnum` returns the member name, lower cased.

This is a follow-up to
4662fa9.
That original commit expanded guards against misspelling assertions on
mocks. This follow-up updates the documentation and improves the error
message by pointing out the potential cause and solution.

Automerge-Triggered-By: GH:gpshead

Export the Py_FrozenMain() function: fix a Python 3.9.0 regression.
Python 3.9 uses -fvisibility=hidden and the function was not exported
explicitly and so not exported.

Add also Py_FrozenMain to the stable ABI on Windows.

private names, such as `_Color__hue` and `_Color__hue_` are now normal attributes, and do not become members nor raise exceptions

…23714)

When creating an Enum, type.__new__ calls __init_subclass__, but at that point the members have not been added.

This patch suppresses the initial call, then manually calls the ancestor __init_subclass__ before returning the new Enum class.

…ue (GH-23726)

Automerge-Triggered-By: GH:vsajip

pymain_run_file() no longer encodes the filename: pass the filename
as an object to the new _PyRun_AnyFileObject() function.

Add new private functions:

* _PyRun_AnyFileObject()
* _PyRun_InteractiveLoopObject()
* _Py_FdIsInteractive()

Remove the private _Py_fopen() function which is no longer needed.
Use _Py_wfopen() or _Py_fopen_obj() instead.

pymain_run_startup() now pass the filename as a Python object to
_PyRun_SimpleFileObject().

…ed (GH-21684)

Py_CompileString() is now always declared as a function by
Include/pythonrun.h. It is overriden with a macro in
Include/cpython/pythonrun.h.

PyErr_ProgramText() now calls PyErr_ProgramTextObject().

…ule practices (GH-23226)

- Copy existing xxlimited to xxlimited53 (named for the limited API version it uses)
- Build both modules, both in debug and release
- Test both modules

Removed PyModule_GetWarningsModule() which is useless due to 
the _warnings module was converted to a builtin module in 2.6.

Fix encoding name when running a ".pyc" file on Windows:
PyRun_SimpleFileExFlags() now uses the correct encoding to decode the
filename.

* Add pyrun_file() subfunction.
* Add pyrun_simple_file() subfunction.
* PyRun_SimpleFileExFlags() now calls _Py_fopen_obj() rather than
  _Py_fopen().

Python 3.10.0a3

…GH-23662)

The solution in gh##13236 is too strict because it
effectively requires the use of Sphinx >= 2.0. It is not too difficult to
make the same solution more robust so it works with all normal versions
of Sphinx.

… match distutils (GH-22088)

Remove obsolete workaround that prevented running files with
shortcuts when using new universal2 installers built on macOS 11.
Ignore buggy 2nd run_module_event call.

… set (GH-23653)