Remove private _PyThreadState and _PyInterpreterState C API
functions: move them to the internal C API (pycore_pystate.h and
pycore_interp.h). Don't export most of these functions anymore, but
still export functions used by tests.
Remove _PyThreadState_Prealloc() and _PyThreadState_Init() from the C
API, but keep it in the stable API.
GH-135552: Make the GC clear weakrefs later (GH-136189)
Fix a bug caused by the garbage collector clearing weakrefs too early. The
weakrefs in the ``tp_subclasses`` dictionary are needed in order to correctly
invalidate type caches (for example, by calling ``PyType_Modified()``).
Clearing weakrefs before calling finalizers causes the caches to not be
correctly invalidated. That can cause crashes since the caches can refer to
invalid objects. Defer the clearing of weakrefs without callbacks until after
finalizers are executed.
GH-119085: Move comment in Python/gc.c to correct place.
In GH-116206, the comment about moving reachable objects to next generation
got moved from its original place to a place where there is no code below
it. Put the comment back to where the actual movement of reachable objects
happens.
gh-137044: Support large limit values in getrlimit() and setrlimit() (GH-137338)
* Return large limit values as positive integers instead of negative integers
in resource.getrlimit().
* Accept large values and reject negative values (except RLIM_INFINITY)
for limits in resource.setrlimit().
gh-137463: Update `validate_abstract_methods` in `test_collections.py` (#137464)
Update `validate_abstract_methods` in `test_collections.py`
The test for missing abstract methods in `validate_abstract_methods` incorrectly attempted to instantiate the generated class `C` with an argument (`C(name)`), which always raises a `TypeError: C() takes no arguments`. Although the test originally passes, it passes for the wrong reason.
This change makes the test correctly validate the enforcement of abstract methods in ABCs.
Victor Stinner [Wed, 6 Aug 2025 12:35:27 +0000 (14:35 +0200)]
gh-58124: Avoid CP_UTF8 in UnicodeDecodeError (#137415)
Fix name of the Python encoding in Unicode errors of the code page
codec: use "cp65000" and "cp65001" instead of "CP_UTF7" and "CP_UTF8"
which are not valid Python code names.
gh-137134: Update SQLite to 3.50.4 for binary releases (GH-137135)
* Update SQLite to 3.50.3 for binary releases.
* macOS and Windows news entries. what about Android?
* update sbom hash
* newline fix via regen-sbom
* news wording
* Update SQLite to 3.50.4 for binary releases.
* update 3.50.4.0.tar.gz hash in sbom & regen-sbom to fix whitespace
* Postpone to a separate PR the build-installer changes to support additional hash types
Co-authored-by: Erlend E. Aasland <erlend.aasland@protonmail.com> Co-authored-by: Claude <noreply@anthropic.com> Co-authored-by: Ned Deily <nad@python.org>
Zachary Ware [Tue, 5 Aug 2025 19:44:27 +0000 (14:44 -0500)]
Fix buildbot release status link in CONTRIBUTING.rst (GH-137429)
The existing link works, but includes the legacy `/all` part of the path
which causes a scary-looking banner about a misconfiguration on the
`Home` page when in reality it's the link that includes a deprecated path.
Bénédikt Tran [Tue, 5 Aug 2025 07:50:34 +0000 (09:50 +0200)]
gh-136306: fix `test_ssl.ContextTests.test_set_groups` on FIPS builds (#137405)
X25519 is not a valid curve if OpenSSL is built with FIPS mode,
and ignoring unknown groups in `SSL_CTX_set1_groups_list()`
is only supported since OpenSSL 3.3, so we use two curves that
are known to be FIPS-compliant, namely P-256 and P-384.
gh-131146: Fix month names in a "standalone form" in calendar module (GH-131147)
The calendar module displays month names in some locales using the genitive case.
This is grammatically incorrect, as the nominative case should be used when the month
is named by itself. To address this issue, this change introduces new lists
`standalone_month_name` and `standalone_month_abbr` that contain month names in
the nominative case -- or more generally, in the form that should be used to
name the month itself, rather than form a date.
The module now uses the `%OB` format specifier to get month names in this form
where available.
gh-124503: Optimize ast.literal_eval() for small input (GH-137010)
The implementation does not create anymore local functions which reduces
the overhead for small inputs. Some other calls are inlined into a
single `_convert_literal` function.
We have a gain of 10-20% for small inputs and only 1-2% for bigger
inputs.
Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com> Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com> Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
Ron Frederick [Mon, 28 Jul 2025 17:33:31 +0000 (10:33 -0700)]
gh-136306: Add support for getting and setting SSL groups (#136307)
Add support for getting and setting groups used for key agreement.
* `ssl.SSLSocket.group()` returns the name of the group used
for the key agreement of the current session establishment.
This feature requires Python to be built with OpenSSL 3.2 or later.
* `ssl.SSLContext.get_groups()` returns the list of names of groups
that are compatible with the TLS version of the current context.
This feature requires Python to be built with OpenSSL 3.5 or later.
* `ssl.SSLContext.set_groups()` sets the groups allowed for key agreement
for sockets created with this context. This feature is always supported.
gh-131876: extract `_hashlib` helpers into a separate directory (#136995)
The `Modules/hashlib.h` helper file is now removed and split into multiple files:
* `Modules/_hashlib/hashlib_buffer.[ch]` -- Utilities for getting a buffer view and handling buffer inputs.
* `Modules/_hashlib/hashlib_fetch.h` -- Utilities used when fetching a message digest from a digest-like identifier.
Currently, this file only contains common error messages as the fetching API is not yet implemented.
* `Modules/_hashlib/hashlib_mutex.h` -- Utilities for managing the lock on cryptographic hash objects.