Instead of surprise crashes and memory corruption, we now hang threads that attempt to re-enter the Python interpreter after Python runtime finalization has started. These are typically daemon threads (our long standing mis-feature) but could also be threads spawned by extension modules that then try to call into Python. This marks the `PyThread_exit_thread` public C API as deprecated as there is no plausible safe way to accomplish that on any supported platform in the face of things like C++ code with finalizers anywhere on a thread's stack. Doing this was the least bad option.
Co-authored-by: Gregory P. Smith <greg@krypto.org>
Fix the incorrect use of `os.open()` result as a context manager,
while it is actually a numeric file descriptor.
I have missed the problem, because in the original version the
`os.open()` call would always fail, and I failed to test the final
version in all possible scenarios properly.
This is actually an upstream problem in curses, and has been reported
to them already:
https://lists.gnu.org/archive/html/bug-ncurses/2024-09/msg00101.html
This is a nice workaround in the meantime to prevent the segfault.
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
Previously when executing ``test_functattrs.test___builtins__`` directly, it failed because the fact, that ``__builtins__`` is refers to the built-in module ``builtins`` while it's expects a ``__builtins__.__dict__``. But when this test is being run from another module, then ``__builtins__`` is refers to ``builtins.__dict__``. Now this part of the behaviour is covered.
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Co-authored-by: Victor Stinner <vstinner@python.org>
Previously, formatting help output or error message for positional argument
with a tuple metavar raised exception.
Co-authored-by: Cyker Way <cykerway@gmail.com>
It can now have one of three forms:
* basename(argv0) -- for simple scripts
* python arv0 -- for directories, ZIP files, etc
* python -m module -- for imported modules
Co-authored-by: Alyssa Coghlan <ncoghlan@gmail.com>
Currently, we only use per-thread reference counting for heap type objects and
the naming reflects that. We will extend it to a few additional types in an
upcoming change to avoid scaling bottlenecks when creating nested functions.
Rename some of the files and functions in preparation for this change.
This is to allow the `dataclasses.make_dataclass` infrastructure to be used with another decorator that's compliant with `typing.dataclass_transform`. The new `decorator` argument to `dataclasses.make_dataclass` is `dataclasses.dataclass`, which used to be hard coded.
* Revert "GH-124639: add back loop param to staggered_race (#124700)"
This reverts commit e0a41a5dd1.
* Revert "gh-124309: Modernize the `staggered_race` implementation to support eager task factories (#124390)"
This reverts commit de929f353c.
Resolve a memory leak introduced in CPython 3.10's :mod:`ssl` when the :attr:`ssl.SSLSocket.session` property was accessed. Speeds up read and write access to said property by no longer unnecessarily cloning session objects via serialization.
Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Co-authored-by: Peter Bierma <zintensitydev@gmail.com>
Co-authored-by: Gregory P. Smith <greg@krypto.org>
Co-authored-by: Antoine Pitrou <antoine@python.org>
* gh-124613: Don't run perf tests in JIT builds
Signed-off-by: Pablo Galindo <pablogsal@gmail.com>
* Apply suggestions from code review
Co-authored-by: Victor Stinner <vstinner@python.org>
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Signed-off-by: Pablo Galindo <pablogsal@gmail.com>
Co-authored-by: Victor Stinner <vstinner@python.org>
PR #121089 added an eager import for types.MethodType, but
still left the existing hacks for lazily importing from types.
We could also create MethodType internally in functools.py (e.g.,
by using `type(Placeholder.__repr__)`, but it feels not worth it at
this point, so instead I unlazified all the usages of types in the
module.
Victor Stinner
Ken Jin
Jeremy Maitin-Shepard
Michał Górny
Peter Bierma
Serhiy Storchaka
Mark Byrne
Savannah Ostrowski
Taneli Hukkinen
Raymond Hettinger
Gregory P. Smith
Tian Gao
Sam Gross
Wulian
Bartosz Sławecki
Victorien
Adam Turner
T. Wouters
larryhastings
Jeffrey R. Van Voorst
Kirill Podoprigora
Pablo Galindo Salgado
Steve Dower
Dino Viehland
sobolevn
Ned Deily
Bénédikt Tran
Jelle Zijlstra
CBerJun