python / cpython

…r validity (GH-24253)

When stdin is a TTY, the test added in commit c13d899
is expected to fail. However, when it failed, it did not close
its file descriptors. This is flagged by the refleak tests (but
only when stdin is a TTY, which doesn't seem to be the case on CI).

…ctypes param reprs. (24239)

The Py_FatalError() function and the faulthandler module now dump the
list of extension modules on a fatal error.

Add _Py_DumpExtensionModules() and _PyModule_IsExtension() internal
functions.

* Replace buffered fprintf() with unbuffered _Py_write_noraise()
  in Py_FatalError().
* _Py_DumpHexadecimal() now accepts uintptr_t.

Move faulthandler._fatal_error() to _testcapi.fatal_error().

GH-24221)

…24179)

Use it to reduce the time and memory taken up by several of traceback's module-level functions.

When trying to extract the error line for the error message there
are two distinct cases:

1. The input comes from a file, which means that we can extract the
   error line by using `PyErr_ProgramTextObject` and which we already
   do.
2. The input does not come from a file, at which point we need to get
   the source code from the tokenizer:
   * If the tokenizer's current line number is the same with the line
     of the error, we get the line from `tok->buf` and we're ready.
   * Else, we can extract the error line from the source code in the
     following two ways:
     * If the input comes from a string we have all the input
       in `tok->str` and we can extract the error line from it.
     * If the input comes from stdin, i.e. the interactive prompt, we
       do not have access to the previous line. That's why a new
       field `tok->stdin_content` is added which holds the whole input for the
       current (multiline) statement or expression. We can then extract the
       error line from `tok->stdin_content` like we do in the string case above.

Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>

Removed stray semicolon which was causing the docs to render weirdly (it's the function right under the one [here](https://docs.python.org/3/c-api/init.html#c._PyInterpreterState_GetEvalFrameFunc)).

…le (GH-17996)

Before, using the * operator to repeat a bytearray would copy data from the start of
the internal buffer (ob_bytes) and not from the start of the actual data (ob_start).

…#24202)

* Mark bytecodes at end of try-except as artificial.

* Make sure that the CFG is consistent throughout optimiization. 

* Extend line-number propagation logic so that implicit returns after 'try-except' or 'with' have the correct line numbers.

* Update importlib

`type.__new__` calls `__set_name__` and `__init_subclass__`, which means
that any work metaclasses do after calling `super().__new__()` will not
be available to those two methods.  In particular, `Enum` classes that
want to make use of `__init_subclass__` will not see any members.

Almost all customization is therefore moved to before the
`type.__new__()` call, including changing all members to a proto member
descriptor with a `__set_name__` that will do the final conversion of a
member to be an instance of the `Enum` class.

Remove deprecated aliases to Abstract Base Classes from the
collections module.

…4200)

According to [bpo-42874](), some versions of grep do not support the `-q` and `-E` options. Although both options are used elsewhere in the configure script, this particular bit of validation can be achieved without them,
so there's no real harm in using a grep call with no flags.

Would be good to get some people taking advantage of the `--with-tzpath` arguments in the wild to try this out.. Local testing seems to indicate that this does the same thing, but I don't know that we have any buildbots using this option. Maybe @pablogsal?

[bpo-42874]():

https://bugs.python.org/issue41994

Test that _PyUnicode_FromId() works when Python is initialized
multiples times.

…GH-24193)

Fix the _PyUnicode_FromId() function (_Py_IDENTIFIER(var) API) when
Py_Initialize() / Py_Finalize() is called multiple times:
preserve _PyRuntime.unicode_ids.next_index value.

Use _PyRuntimeState_INIT macro instead memset(0) to reset
_PyRuntimeState members to zero.

1. ParamSpec -> TypeVar for ``typing.Concatenate``
2. ParamSpec's call signature should align with its documentation.
Noticed in GH-24169

…H-24183)

If __repr__ uses instance attributes, as normal, and one steps
through the __init__ method, debugger may try to get repr before
the instance attributes exist.  reprlib.repr handles the error.

…24170)

The distutils bdist_wininst command deprecated in Python 3.8 has been
removed. The distutils bidst_wheel command is now recommended to
distribute binary packages on Windows.

* Remove Lib/distutils/command/bdist_wininst.py
* Remove PC/bdist_wininst/ project
* Remove Lib/distutils/command/wininst-*.exe programs
* Remove all references to bdist_wininst

Return param spec should be R, not T