gh-121791: Check for `NULL` in `MethodDescriptor2_new` in `_testcapi` (GH-121792)
(cherry picked from commit 8b6d475581)
Co-authored-by: sobolevn <mail@sobolevn.me>
When using the ** operator or pow() with Fraction as the base
and an exponent that is not rational, a float, or a complex, the
fraction is no longer converted to a float.
(cherry picked from commit b9965ef282)
Co-authored-by: Joshua Herman <30265+zitterbewegung@users.noreply.github.com>
gh-121660: Fix `ga_getitem` by explicitly checking for `NULL` result (GH-121661)
(cherry picked from commit bb802db8cf)
Co-authored-by: sobolevn <mail@sobolevn.me>
gh-73159 Added clarifications in multiprocessing docs on that objects are pickled. (GH-121686)
Added explicit comments about that objects are pickled when transmitted via multiprocessing queues and pipes.
(cherry picked from commit b5805892d5)
Co-authored-by: Ulrik Södergren <ulrik@digitalfotografen.se>
gh-99242 Ignore error when running regression tests under certain conditions. (GH-121663)
(cherry picked from commit 0759cecd9d)
Co-authored-by: Bas Bloemsaat <bas@bloemsaat.com>
Co-authored-by: Kevin Diem <kg.diem@gmail.com>
When builtin static types are initialized for a subinterpreter, various "tp" slots have already been inherited (for the main interpreter). This was interfering with the logic in add_operators() (in Objects/typeobject.c), causing a wrapper to get created when it shouldn't. This change fixes that by preserving the original data from the static type struct and checking that.
(cherry picked from commit 5250a03133, AKA gh-121602)
Co-authored-by: Eric Snow <ericsnowcurrently@gmail.com>
On heavily loaded machines, the subprocess may finish its sleep before
the parent process manages to synchronize with it via a failed lock.
This leads to errors like:
Exception: failed to sync child in 300.3 sec
Use pipes instead to mutually synchronize between parent and child.
(cherry picked from commit af9f6de6ea)
Co-authored-by: Sam Gross <colesbury@gmail.com>
gh-121571: Do not use `EnvironmentError` in tests, use `OSError` instead (GH-121572)
(cherry picked from commit e2822360da)
Co-authored-by: sobolevn <mail@sobolevn.me>
GH-121439: Allow PyTupleObjects with an ob_size of 20 in the free_list to be reused (gh-121428)
(cherry picked from commit 9585a1a2a2)
Co-authored-by: satori1995 <132636720+satori1995@users.noreply.github.com>
gh-121333: Clarify what is the default executor for asyncio.run_in_executor (GH-121335)
(cherry picked from commit facf9862da)
Co-authored-by: AN Long <aisk@users.noreply.github.com>
Co-authored-by: Kumar Aditya <kumaraditya@python.org>
Update example of str.split, bytes.split (GH-121287)
In `{str,bytes}.strip(chars)`, multiple characters are not treated as a
prefix/suffix, but as individual characters. This may make users confuse
whether `split` has similar behavior.
Users may incorrectly expect that
`'Good morning, John.'.split(', .') == ['Good', 'morning', 'John']`
Adding a bit of clarification in the doc.
(cherry picked from commit 892e3a1b70)
Co-authored-by: Yuxin Wu <ppwwyyxxc@gmail.com>
Co-authored-by: Yuxin Wu <ppwwyyxx@users.noreply.github.com>
gh-121390: tracemalloc: Fix tracebacks memory leak (GH-121391)
The tracemalloc_tracebacks hash table has traceback keys and NULL
values, but its destructors do not reflect this -- key_destroy_func is
NULL while value_destroy_func is raw_free. Swap these to free the
traceback keys instead.
(cherry picked from commit db39bc42f9)
Co-authored-by: Josh Brobst <jbrobst@proton.me>
gh-121084: Fix test_typing random leaks (GH-121360)
Clear typing ABC caches when running tests for refleaks (-R option):
call _abc_caches_clear() on typing abstract classes and their
subclasses.
(cherry picked from commit 5f660e8e2c)
Co-authored-by: Victor Stinner <vstinner@python.org>
gh-117983: Defer import of threading for lazy module loading (GH-120233)
As noted in gh-117983, the import importlib.util can be triggered at
interpreter startup under some circumstances, so adding threading makes
it a potentially obligatory load.
Lazy loading is not used in the stdlib, so this removes an unnecessary
load for the majority of users and slightly increases the cost of the
first lazily loaded module.
An obligatory threading load breaks gevent, which monkeypatches the
stdlib. Although unsupported, there doesn't seem to be an offsetting
benefit to breaking their use case.
For reference, here are benchmarks for the current main branch:
```
❯ hyperfine -w 8 './python -c "import importlib.util"'
Benchmark 1: ./python -c "import importlib.util"
Time (mean ± σ): 9.7 ms ± 0.7 ms [User: 7.7 ms, System: 1.8 ms]
Range (min … max): 8.4 ms … 13.1 ms 313 runs
```
And with this patch:
```
❯ hyperfine -w 8 './python -c "import importlib.util"'
Benchmark 1: ./python -c "import importlib.util"
Time (mean ± σ): 8.4 ms ± 0.7 ms [User: 6.8 ms, System: 1.4 ms]
Range (min … max): 7.2 ms … 11.7 ms 352 runs
```
Compare to:
```
❯ hyperfine -w 8 './python -c pass'
Benchmark 1: ./python -c pass
Time (mean ± σ): 7.6 ms ± 0.6 ms [User: 5.9 ms, System: 1.6 ms]
Range (min … max): 6.7 ms … 11.3 ms 390 runs
```
This roughly halves the import time of importlib.util.
(cherry picked from commit 94f50f8ee6)
Co-authored-by: Chris Markiewicz <effigies@gmail.com>
docs: Fix "Py_TPFLAGS_MANAGED_WEAKREF is set in tp_flags" (GH-112237)
(cherry picked from commit 4232976b02)
Co-authored-by: da-woods <dw-git@d-woods.co.uk>
gh-114104: clarify asynchronous comprehension docs to match runtime behavior (GH-121175)
(cherry picked from commit 91313afdb3)
Co-authored-by: Danny Yang <yangdanny97@users.noreply.github.com>
gh-121200: Fix test_expanduser_pwd2() of test_posixpath (GH-121228)
Call getpwnam() to get pw_dir, since it can be different than
getpwall() pw_dir.
(cherry picked from commit 02cb5fdee3)
Co-authored-by: Victor Stinner <vstinner@python.org>
gh-121200: Log pwd entry in test_expanduser_pwd2() (GH-121207)
Use subTest() to log the pwd entry in test_expanduser_pwd2() of
test_posixpath to help debugging.
(cherry picked from commit 05a6f8da60)
Co-authored-by: Victor Stinner <vstinner@python.org>
gh-121084: Call _abc_registry_clear() when checking refleaks (GH-121191)
dash_R_cleanup() now calls _abc_registry_clear() before calling again
register().
(cherry picked from commit c766ad206e)
Co-authored-by: Victor Stinner <vstinner@python.org>
gh-121188: Sanitize invalid XML characters in regrtest (GH-121195)
When creating the JUnit XML file, regrtest now escapes characters
which are invalid in XML, such as the chr(27) control character used
in ANSI escape sequences.
(cherry picked from commit af8c3d7a26)
Co-authored-by: Victor Stinner <vstinner@python.org>
