Previously, if the `ast.AST._fields` attribute was deleted, attempts to create a new `as`t node would crash due to the assumption that `_fields` always had a non-NULL value. Now it has been fixed by adding an extra check to ensure that `_fields` does not have a NULL value (this can happen when you manually remove `_fields` attribute).
Fix `asyncio.Future._callbacks` to always return a copy of the internal list of callbacks to avoid mutation from user code affecting the internal state.
If multiple threads concurrently imported `collections.abc`, some of the
threads might incorrectly see the "shim" `Lib/collections/abc.py` module
instead of the correct `Lib/_collections_abc.py` module. This affected
both the free threading build and the default GIL-enabled build.
* Remove `@suppress_immortalization` decorator
* Make suppression flag per-thread instead of per-interpreter
* Suppress immortalization in `eval()` to avoid refleaks in three tests
(test_datetime.test_roundtrip, test_logging.test_config8_ok, and
test_random.test_after_fork).
* frozenset() is constant, but not a singleton. When run multiple times,
the test could fail due to constant interning.
On Windows, `long` is a signed 32-bit integer so it can't represent
`0xffff_ffff` without overflow. Windows exit codes are unsigned 32-bit
integers, so if a child process exits with `-1`, it will be represented
as `0xffff_ffff`.
Also fix a number of other possible cases where `_Py_HandleSystemExit`
could return with an exception set, leading to a `SystemError` (or
fatal error in debug builds) later on during shutdown.
This fixes a crash when `gc.get_objects()` or `gc.get_referrers()` is
called during a GC in the free threading build.
Switch to `_PyObjectStack` to avoid corrupting the `struct worklist`
linked list maintained by the GC. Also, don't return objects that are frozen
(`gc.freeze()`) or in the process of being collected to more closely match
the behavior of the default build.
* The parser no longer changes temporarily during parsing.
* Default values are not processed twice.
* Required mutually exclusive groups containing positional arguments are
now supported.
* The missing arguments report now includes the names of all required
optional and positional arguments.
* Unknown options can be intermixed with positional arguments in
parse_known_intermixed_args().
This is a follow up of GH-124974. Only Glibc needed a fix.
Now the returned value is a string consisting of semicolon-separated
symbols on all Posix platforms.
Previously, copying a super object returned a copy of the instance
invoking super(). Pickling a super object could pickle the instance
invoking super() or fail, depending on its type and protocol.
Now deep copying returns a new super object and pickling pickles the super
object. Shallow copying returns the same super object.
Dictionary watchers on an object's attributes dictionary
(`object.__dict__`) were not triggered when the managed dictionary used
the object's inline values.
sobolevn
Mark Shannon
Taneli Hukkinen
Sergey B Kirpichev
Tomas R.
Bénédikt Tran
devdanzin
Brian Schubert
Zhikang Yan
Malcolm Smith
Bogdan Romanyuk
Jun Komoda
Kumar Aditya
Victor Stinner
Russell Keith-Magee
Tian Gao
Sam Gross
Shantanu
Javad Shafique
Peter Bierma
Jelle Zijlstra
Petr Viktorin
Wulian
Serhiy Storchaka
Jacob Walls
Mario Šaško
Ethan Furman
Mikhail Efimov
Y5
Alex Waygood