python / cpython Public

…e collections ABCs (GH-28218)

…feature usage. (GH-28260)

* issue45067 - Fix _curses compilation in CentOS 7. Verify the version of ncurses
for extended color support feature usage.

The function extended_color_content was introduced in 2017.  The ncurses-devel
package in CentOS 7 had a older version ncurses resulted in compilation error.
For compiling ncurses with extended color support, we verify the version of the
ncurses library.

Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>

Release the GIL while performing isatty() system calls on arbitrary
file descriptors. In particular, this affects os.isatty(),
os.device_encoding() and io.TextIOWrapper. By extension,
io.open() in text mode is also affected.

Update test_sysconfig.test_user_similar() for the posix_user scheme:
"platlib" doesn't use sys.platlibdir.

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

Due to significant security concerns, the reuse_address parameter of
asyncio.loop.create_datagram_endpoint, deprecated in Python 3.9, is
now removed. This is because of the behavior of the socket option
SO_REUSEADDR in UDP.

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

This test was forever shadowed by another test method named `test_errors`.

…UX (GH-27857)

…ubclass' __init__ (GH-28206)

Remove deprecated __getitem__ methods of xml.dom.pulldom.DOMEventStream,
wsgiref.util.FileWrapper and fileinput.FileInput, deprecated since Python 3.9.

Convert the Py_TYPE() and Py_SIZE() macros to static inline
functions. The Py_SET_TYPE() and Py_SET_SIZE() functions must now be
used to set an object type and size.

…ble to start process (GH-28018)

The functions in question are available on the module-level only.

Releasing GIL allows other threads to continue
its work when os.scandir is fetching DirEntry.stat
info from file system.

Signed-off-by: Christian Heimes <christian@python.org>

Fix regrtest second summary when using -w/--verbose2 command line
option: lists re-run tests in the second test summary.

The deallocator function of the BaseException type now uses the
trashcan mecanism to prevent stack overflow. For example, when a
RecursionError instance is raised, it can be linked to another
RecursionError through the __context__ attribute or the __traceback__
attribute, and then a chain of exceptions is created. When the chain
is destroyed, nested deallocator function calls can crash with a
stack overflow if the chain is too long compared to the available
stack memory.

…acks (GH-27940)

- add print-or-clear traceback helper
- add helpers to clear and visit saved contexts
- modify callbacks to use the new callback_context struct

…)` (GH-28178)

Co-authored-by: Mark Dickinson <dickinsm@gmail.com>
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>

…-28011)" (GH-28201)

This reverts commit 4f88161.

- all callbacks are now named xxx_callback
- normalise callable naming in set_*() functions
- normalise context argument naming in callbacks

The sqlite code is being "touched" in bpo-42064 (and related issues);
this style change makes it easier to work with and review.

…me objects (GH-28200)

Fix PyAiter_Check to only check for the `__anext__` presense (not for
`__aiter__`). Rename `PyAiter_Check()` to `PyAIter_Check()`,
`PyObject_GetAiter()` -> `PyObject_GetAIter()`.

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

The bdist_msi command, deprecated in Python 3.9, is now removed.
Use bdist_wheel (wheel packages) instead.

…bjects (GH-27955)

Co-authored-by: Yury Selivanov <yury@edgedb.com>