…ypeVar and TypeVarTuple parameters (alt) (GH-93412)

For example:

  A[T, *Ts][*tuple[int, ...]] -> A[int, *tuple[int, ...]]
  A[*Ts, T][*tuple[int, ...]] -> A[*tuple[int, ...], int]

Add what's new entry for PEP 682 in Python 3.11.

Co-authored-by: Brett Cannon <brett@python.org>

…H-92931)

…in `test_zipimport.py` (GH-93236)

Documentation for `pathlib` says:

> Spurious slashes and single dots are collapsed, but double dots ('..') are not, since this would change the meaning of a path in the face of symbolic links:

However, it omits that initial double slashes also aren't collapsed.

Later, in documentation of `PurePath.drive`, `PurePath.root`, and `PurePath.name` it mentions UNC but:

- this abbreviation says nothing to a person who is unaware about existence of UNC (Wikipedia doesn't help either by [giving a disambiguation page](https://en.wikipedia.org/wiki/UNC))
- it shows up only if a person needs to use a specific property or decides to fully learn what the module provides.

For context, see the BPO entry.

…ths (GH-93653)

…ce the size of the exception table (GH-93622)

…tterns in match statements (GH-93680)

Co-authored-by: Łukasz Langa <lukasz@langa.pl>

…e where this was problematic (GH-93471)

Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
Co-authored-by: Steve Dower <steve.dower@microsoft.com>
Co-authored-by: Erlend Egeberg Aasland <erlend.aasland@protonmail.com>

Use C APIs such as PyModule_AddType instead of PyModule_AddObject.
Also remove incorrect module decrefs if module fails to initialise.

… 32-bit systems (#93090)

…awn (#30617)

Co-authored-by: XD Trol <milestonejxd@gmail.com>
Co-authored-by: Antoine Pitrou <pitrou@free.fr>

GH-93644)

This checks the bases of of a type created using the FromSpec
API to inherit the bases metaclasses.  The metaclass's alloc
function will be called as is done in `tp_new` for classes
created in Python.

Co-authored-by: Petr Viktorin <encukou@gmail.com>
Co-authored-by: Erlend Egeberg Aasland <erlend.aasland@protonmail.com>

…hes (GH-92791)

copy.copy() and copy.deepcopy() now always raise a TypeError if
__reduce__() returns a tuple with length 6 instead of silently ignore
the 6th item or produce incorrect result.

Fixup of GH-93463:
- remove stray print
- use proper way to check file mode
- add working chmod decorator

Co-authored-by: Łukasz Langa <lukasz@langa.pl>

* gh-93575: Use correct way to calculate PyUnicode struct sizes

* Add comment to keep test_sys and test_unicode in sync

* Fix case code < 256

…ited API (GH-93581)

* Remove outdated notes from functions that aren't in the Limited API

Nowadays everything that *is* in the Limited API has a note added
automatically.
These notes could mislead people to think that these functions
could never be added to the limited API. Remove them.

* Also remove forgotten note on tp_vectorcall_offset not being finalized

All install targets use the "all" target as synchronization point to
prevent race conditions with PGO builds. PGO builds use recursive make,
which can lead to two parallel `./python setup.py build` processes that
step on each others toes.

"test" targets now correctly compile PGO build in a clean repo.

…n bases (GH-93535)