This change removes the alias of the 'C' locale to 'en_US'. Because of
this alias, it is currently impossible for an application to use
setlocale() to specify a UTF-8 locale on a system that has no locales
installed, but which supports the C.UTF-8 locale/encoding.
gh-82814: Adds `errno.EACCES` to the list of ignored errors on
`_copyxattr`. EPERM and EACCES are different constants but
in general should be treated the same.
News entry authored by: Gregory P. Smith <greg@krypto.org>
This PR makes some minor linting adjustments to the Lib/test module
caught by [ruff](https://github.com/charliermarsh/ruff). The adjustments
are all related to the `F541 f-string without any placeholders` issue.
Issue: https://github.com/python/cpython/issues/103805
<!-- gh-issue-number: gh-103805 -->
* Issue: gh-103805
<!-- /gh-issue-number -->
---------
Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Co-authored-by: Gregory P. Smith <greg@krypto.org>
This is strictly about moving the "obmalloc" runtime state from
`_PyRuntimeState` to `PyInterpreterState`. Doing so improves isolation
between interpreters, specifically most of the memory (incl. objects)
allocated for each interpreter's use. This is important for a
per-interpreter GIL, but such isolation is valuable even without it.
FWIW, a per-interpreter obmalloc is the proverbial
canary-in-the-coalmine when it comes to the isolation of objects between
interpreters. Any object that leaks (unintentionally) to another
interpreter is highly likely to cause a crash (on debug builds at
least). That's a useful thing to know, relative to interpreter
isolation.
sockserver gains ForkingUnixStreamServer and ForkingUnixDatagramServer classes for consistency with all of the others. Ironically these existed but were buried in our test suite.
Addresses #103673
<!-- gh-issue-number: gh-103673 -->
* Issue: gh-103673
<!-- /gh-issue-number -->
---------
Co-authored-by: Gregory P. Smith <greg@krypto.org>
Co-authored-by: Nikita Sobolev <mail@sobolevn.me>
This speeds up `super()` (by around 85%, for a simple one-level
`super().meth()` microbenchmark) by avoiding allocation of a new
single-use `super()` object on each use.
* Clean up unused variables and imports in the email module
* Remove extra newline char
* Remove superflous dict+unpacking syntax
* Remove unused 'msg' var
* Clean up unused variables and imports in the email module
* Remove extra newline char
* Remove superflous dict+unpacking syntax
* Remove unused 'msg' var
---------
Co-authored-by: Barry Warsaw <barry@python.org>
The word 'dependent' is both an adjective and a noun. A 'dependant' is a British alternative spelling for the noun form. In idlelib.sidebar, 'OS-dependant' is an adjective and clearly wrong. In 'Using', 'dependant' as a noun would be acceptable in Britain, but we use American spellings in Python docs.
https://www.merriam-webster.com/words-at-play/spelling-variants-dependent-vs-dependant
bpo-37222: Fix for CacheFTPHandler in urllib
A call to FTP.ntransfercmd must be followed by FTP.voidresp to clear
the "end transfer" message. Without this, the client and server get
out of sync, which will result in an error if the FTP instance is
reused to open a second URL. This scenario occurs for even the most
basic usage of CacheFTPHandler.
Reverts the patch merged as a resolution to bpo-16270 and adds a test
case for the CacheFTPHandler in test_urllib2net.py.
Co-authored-by: Senthil Kumaran <senthil@python.org>
This is the implementation of PEP683
Motivation:
The PR introduces the ability to immortalize instances in CPython which bypasses reference counting. Tagging objects as immortal allows up to skip certain operations when we know that the object will be around for the entire execution of the runtime.
Note that this by itself will bring a performance regression to the runtime due to the extra reference count checks. However, this brings the ability of having truly immutable objects that are useful in other contexts such as immutable data sharing between sub-interpreters.
Irit Katriel
Itayazolay
Nikita Sobolev
Lysandros Nikolaou
Stefano Rivera
Aidan Melen
180909
Erlend E. Aasland
Juhi Chandalia
Paul Moore
Gordon Messmer
Tian Gao
Senthil Kumaran
Carl Meyer
Samuel Sloniker
Petr Viktorin
Prince Roshan
Allan Lago
Rodolfo M. Pereira
Eric Snow
jb2170
Łukasz Langa
Shantanu
Itamar Ostricher
JosephSBoyle
Terry Jan Reedy
Brett Simmers
Kirill
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Randy
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Jason R. Coombs