delta/cpython-git.git/Modules/_io, branch v3.11.0b2

gh-91320: Argument Clinic uses _PyCFunction_CAST() (#32210)

2022-05-03T18:25:41+00:00

Replace "(PyCFunction)(void(*)(void))func" cast with
_PyCFunction_CAST(func).

gh-91952: Make TextIOWrapper.reconfigure() supports "locale" encoding (GH-91982)

2022-05-01T01:44:14+00:00

bpo-46712: share more global strings in deepfreeze (gh-32152)

2022-04-19T17:41:36+00:00

(for gh-90868)

gh-91526: io: Remove device encoding support from TextIOWrapper (GH-91529)

2022-04-19T02:44:36+00:00

`TextIOWrapper.__init__()` called `os.device_encoding(file.fileno())` if fileno is 0-2 and encoding=None.
But it is very rarely works, and never documented behavior.

gh-91156: Fix `encoding="locale"` in UTF-8 mode (GH-70056)

2022-04-14T07:00:35+00:00

bpo-47000: Add `locale.getencoding()` (GH-32068)

2022-04-09T00:54:54+00:00

bpo-47000: Make `io.text_encoding()` respects UTF-8 mode (GH-32003)

2022-04-04T02:46:57+00:00

Co-authored-by: Eric Snow

bpo-25415: Remove confusing sentence from IOBase docstrings (PR-31631)

2022-03-04T17:35:52+00:00

bpo-46765: Replace Locally Cached Strings with Statically Initialized Objects (gh-31366)

2022-02-23T00:23:51+00:00

https://bugs.python.org/issue46765

bpo-46541: Replace core use of _Py_IDENTIFIER() with statically initialized global objects. (gh-30928)

2022-02-08T20:39:07+00:00

We're no longer using _Py_IDENTIFIER() (or _Py_static_string()) in any core CPython code.  It is still used in a number of non-builtin stdlib modules.

The replacement is: PyUnicodeObject (not pointer) fields under _PyRuntimeState, statically initialized as part of _PyRuntime.  A new _Py_GET_GLOBAL_IDENTIFIER() macro facilitates lookup of the fields (along with _Py_GET_GLOBAL_STRING() for non-identifier strings).

https://bugs.python.org/issue46541#msg411799 explains the rationale for this change.

The core of the change is in:

* (new) Include/internal/pycore_global_strings.h - the declarations for the global strings, along with the macros
* Include/internal/pycore_runtime_init.h - added the static initializers for the global strings
* Include/internal/pycore_global_objects.h - where the struct in pycore_global_strings.h is hooked into _PyRuntimeState
* Tools/scripts/generate_global_objects.py - added generation of the global string declarations and static initializers

I've also added a --check flag to generate_global_objects.py (along with make check-global-objects) to check for unused global strings.  That check is added to the PR CI config.

The remainder of this change updates the core code to use _Py_GET_GLOBAL_IDENTIFIER() instead of _Py_IDENTIFIER() and the related _Py*Id functions (likewise for _Py_GET_GLOBAL_STRING() instead of _Py_static_string()).  This includes adding a few functions where there wasn't already an alternative to _Py*Id(), replacing the _Py_Identifier * parameter with PyObject *.

The following are not changed (yet):

* stop using _Py_IDENTIFIER() in the stdlib modules
* (maybe) get rid of _Py_IDENTIFIER(), etc. entirely -- this may not be doable as at least one package on PyPI using this (private) API
* (maybe) intern the strings during runtime init

https://bugs.python.org/issue46541