repo stringclasses 1 value | instance_id stringlengths 20 22 | problem_statement stringlengths 126 60.8k | merge_commit stringlengths 40 40 | base_commit stringlengths 40 40 |
|---|---|---|---|---|
python/cpython | python__cpython-132389 | # Increase test coverage for HMAC
# Feature or enhancement
### Proposal:
After implementing HACL* HMAC in #99108, I've observed that I didn't test all code paths and that some tests I assumed were a bit incorrect (some redundancy was done). This is an issue to track all improvements done to HMAC tests (I'm planning to target an almost 100% coverage), but I'll close it when nothing needs to be done "for now".
### Has this already been discussed elsewhere?
This is a minor feature, which does not need previous discussion elsewhere
### Links to previous discussion of this feature:
_No response_
<!-- gh-linked-prs -->
### Linked PRs
* gh-132389
* gh-132480
* gh-133008
* gh-134051
* gh-134089
<!-- /gh-linked-prs -->
| a1cd4ca7f46eafe61dc7f26692896a4a95c7e947 | 084d6dc122c761b90cba620eac2f25dc1660b7f1 |
python/cpython | python__cpython-132412 | # Segfault or failed assertion (`obj != NULL`) in `PyStackRef_FromPyObjectSteal`
# Crash report
### What happened?
It's possible to segfault or abort the interpreter with the following code:
```python
class WeirdDict(dict): pass
ns = {}
exec("def __create_fn__():\n return a", WeirdDict({None: None}), ns)
ns['__create_fn__']()
```
Segfault backtrace:
```gdb
Program received signal SIGSEGV, Segmentation fault.
_PyEval_LoadGlobalStackRef (globals=<optimized out>, builtins=<optimized out>, name=0x555555aeace0 <_PyRuntime+80128>, writeto=0x7ffff7fb00f8) at Python/ceval.c:3317
3317 *writeto = PyStackRef_FromPyObjectSteal(res);
(gdb) bt
#0 _PyEval_LoadGlobalStackRef (globals=<optimized out>, builtins=<optimized out>,
name=0x555555aeace0 <_PyRuntime+80128>, writeto=0x7ffff7fb00f8) at Python/ceval.c:3317
#1 0x00005555555e22f2 in _PyEval_EvalFrameDefault (tstate=0x555555b24178 <_PyRuntime+314776>,
frame=<optimized out>, throwflag=<optimized out>) at Python/generated_cases.c.h:9073
#2 0x00005555557ab807 in _PyEval_EvalFrame (throwflag=0, frame=0x7ffff7fb0020,
tstate=0x555555b24178 <_PyRuntime+314776>) at ./Include/internal/pycore_ceval.h:119
#3 _PyEval_Vector (args=0x0, argcount=0, kwnames=0x0, locals=0x7ffff7a4d240, func=0x7ffff7a50f60,
tstate=0x555555b24178 <_PyRuntime+314776>) at Python/ceval.c:1913
#4 PyEval_EvalCode (co=co@entry=0x7ffff7bf5920, globals=globals@entry=0x7ffff7a4d240,
locals=locals@entry=0x7ffff7a4d240) at Python/ceval.c:829
#5 0x000055555581f3bc in run_eval_code_obj (locals=0x7ffff7a4d240, globals=0x7ffff7a4d240,
co=0x7ffff7bf5920, tstate=0x555555b24178 <_PyRuntime+314776>) at Python/pythonrun.c:1365
#6 run_mod (mod=<optimized out>, filename=filename@entry=0x7ffff7a066b0,
globals=globals@entry=0x7ffff7a4d240, locals=locals@entry=0x7ffff7a4d240,
flags=flags@entry=0x7fffffffdc18, arena=arena@entry=0x7ffff7b5e210, interactive_src=0x0,
generate_new_source=0) at Python/pythonrun.c:1436
#7 0x0000555555821456 in pyrun_file (flags=0x7fffffffdc18, closeit=1, locals=0x7ffff7a4d240,
globals=0x7ffff7a4d240, start=257, filename=0x7ffff7a066b0, fp=0x555555b97510)
at Python/pythonrun.c:1293
```
Abort backtrace:
```gdb
python: ./Include/internal/pycore_stackref.h:447: PyStackRef_FromPyObjectSteal: Assertion `obj != NULL' failed.
Program received signal SIGABRT, Aborted.
__pthread_kill_implementation (no_tid=0, signo=6, threadid=140737350580032) at ./nptl/pthread_kill.c:44
44 ./nptl/pthread_kill.c: No such file or directory.
(gdb) bt
#0 __pthread_kill_implementation (no_tid=0, signo=6, threadid=140737350580032) at ./nptl/pthread_kill.c:44
#1 __pthread_kill_internal (signo=6, threadid=140737350580032) at ./nptl/pthread_kill.c:78
#2 __GI___pthread_kill (threadid=140737350580032, signo=signo@entry=6) at ./nptl/pthread_kill.c:89
#3 0x00007ffff7ce0476 in __GI_raise (sig=sig@entry=6) at ../sysdeps/posix/raise.c:26
#4 0x00007ffff7cc67f3 in __GI_abort () at ./stdlib/abort.c:79
#5 0x00007ffff7cc671b in __assert_fail_base (
fmt=0x7ffff7e7b130 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n",
assertion=0x555555a5971d "obj != NULL", file=0x5555559dc630 "./Include/internal/pycore_stackref.h",
line=447, function=<optimized out>) at ./assert/assert.c:94
#6 0x00007ffff7cd7e96 in __GI___assert_fail (assertion=assertion@entry=0x555555a5971d "obj != NULL",
file=file@entry=0x5555559dc630 "./Include/internal/pycore_stackref.h", line=line@entry=447,
function=function@entry=0x555555a42180 <__PRETTY_FUNCTION__.23> "PyStackRef_FromPyObjectSteal")
at ./assert/assert.c:103
#7 0x0000555555829da7 in PyStackRef_FromPyObjectSteal (obj=<optimized out>)
at ./Include/internal/pycore_stackref.h:447
#8 _PyEval_LoadGlobalStackRef (globals=<optimized out>, builtins=<optimized out>, name='a',
writeto=writeto@entry=0x7ffff7fb00f8) at Python/ceval.c:3312
#9 0x000055555584e4ba in _PyEval_EvalFrameDefault (
tstate=tstate@entry=0x555555c69558 <_PyRuntime+330424>, frame=0x7ffff7fb00a8,
frame@entry=0x7ffff7fb0020, throwflag=throwflag@entry=0) at Python/generated_cases.c.h:9086
#10 0x000055555585cd69 in _PyEval_EvalFrame (throwflag=0, frame=0x7ffff7fb0020,
tstate=0x555555c69558 <_PyRuntime+330424>) at ./Include/internal/pycore_ceval.h:119
```
Found using [fusil](https://github.com/devdanzin/fusil) by @vstinner.
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
Linux, Windows
### Output from running 'python -VV' on the command line:
Python 3.14.0a7+ (heads/main:d87e7f35297, Apr 11 2025, 06:20:25) [GCC 11.4.0]
<!-- gh-linked-prs -->
### Linked PRs
* gh-132412
<!-- /gh-linked-prs -->
| e6ef47ac229b5c4a62b9c907e4232e350db77ce3 | deda47d6e18d61e982045b795e3599838823db6a |
python/cpython | python__cpython-132387 | # Instance attr error suggestions can execute `__getattr__`
# Bug report
```python
>>> class A:
... def __getattr__(self, key):
... if key == 'foo': raise SystemExit('bye')
... def bar(self):
... foo
...
>>> A().bar()
bye
# interperter exits :(
```
Originally found by @millerdev in https://github.com/python/cpython/pull/99140#issuecomment-2794364711
I think that this is not ideal. We probably want to silence all errors. I have a PR ready.
<!-- gh-linked-prs -->
### Linked PRs
* gh-132387
* gh-133297
<!-- /gh-linked-prs -->
| 641253cfac789e57c2b0c16047bdbf355535f60f | 20f8ed595d176d951a09eba045cd69ca62981b18 |
python/cpython | python__cpython-132357 | # test_pathlib - test_group_no_follow_symlinks resolves group name from uid rather than gid
# Bug report
### Bug description:
In Fedora 43 `test_group_no_follow_symlinks` started failing with a peculiar failure for Python 3.14 and Python 3.13:
```pytb
======================================================================
FAIL: test_group_no_follow_symlinks (test.test_pathlib.test_pathlib.PathSubclassTest.test_group_no_follow_symlinks)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/usr/lib64/python3.14/test/test_pathlib/test_pathlib.py", line 2071, in test_group_no_follow_symlinks
self.assertEqual(expected_name, link.group(follow_symlinks=False))
~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: 'adm' != 'sys'
- adm
+ sys
======================================================================
FAIL: test_group_no_follow_symlinks (test.test_pathlib.test_pathlib.PathTest.test_group_no_follow_symlinks)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/usr/lib64/python3.14/test/test_pathlib/test_pathlib.py", line 2071, in test_group_no_follow_symlinks
self.assertEqual(expected_name, link.group(follow_symlinks=False))
~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: 'adm' != 'sys'
- adm
+ sys
======================================================================
FAIL: test_group_no_follow_symlinks (test.test_pathlib.test_pathlib.PosixPathTest.test_group_no_follow_symlinks)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/usr/lib64/python3.14/test/test_pathlib/test_pathlib.py", line 2071, in test_group_no_follow_symlinks
self.assertEqual(expected_name, link.group(follow_symlinks=False))
~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: 'adm' != 'sys'
- adm
+ sys
```
The gid, which is asserted the line above, is in both cases the same (`3`), but the names don't match.
The tests calls `_get_pw_name_or_skip_test`, which calls `pwd.getpwuid(uid).pw_name` - which in return stopped giving the right result in our environment.
https://github.com/python/cpython/blob/29af6cee02fbe74d59c6d725a506fe60c77d37d6/Lib/test/test_pathlib/test_pathlib.py#L2068
The cut contents of the two system files (you can check it for yourself spawning the fedora:rawhide container with `podman run -rm -it fedora:rawhide /usr/bin/bash`):
```
bash-5.2# head /etc/group
root:x:0:
sys:x:3:
adm:x:4:
bash-5.2# head /etc/passwd
root:x:0:0:Super User:/root:/bin/bash
bin:x:1:1:bin:/bin:/usr/bin/nologin
daemon:x:2:2:daemon:/sbin:/usr/bin/nologin
adm:x:3:4:adm:/var/adm:/usr/bin/nologin
```
I believe the test should use the other helper function prepared `_get_gr_name_or_skip_test`. It was probably an accidental copy-paste omission in the first place. I verified this will make the tests pass.
### CPython versions tested on:
3.14
### Operating systems tested on:
Linux
<!-- gh-linked-prs -->
### Linked PRs
* gh-132357
* gh-132404
<!-- /gh-linked-prs -->
| 3e1a47bdb468d02665c137d84dd44500a557b58b | f23052591a60f588c432795f1ac687e709d97386 |
python/cpython | python__cpython-132374 | # AsyncIO-Docs: Task.cancel return value not documented
# Documentation
The documentation of [`asyncio.Task.cancel`](https://docs.python.org/3/library/asyncio-task.html#asyncio.Task.cancel) does not mention that there is a return value of True/False. The return value functions like the one of [`asyncio.Future.cancel`](https://docs.python.org/3/library/asyncio-future.html#asyncio.Future.cancel), where `False` indicates it was already done or cancelled.
The only reference is that `Task`s are "Future-like objects". Other Functions state the return value either as first, or second paragraph.
<!-- gh-linked-prs -->
### Linked PRs
* gh-132374
* gh-132465
<!-- /gh-linked-prs -->
| 64b066ad298506f715647c9a2524c9fbbc764cc2 | f69b344e0944bd8d59d2dc4d98e988cc4dbfadf3 |
python/cpython | python__cpython-132352 | # Reference counting related regression in Python 3.14a7?
# Bug report
### Bug description:
Dear Python team,
I am the lead of the [nanobind](https://github.com/wjakob/nanobind) project, which is a C++<->Python binding tool. I always try to follow recent Python versions to react to any API/ABI changes and catch issues before they end up in public releases. With the just-released Python 3.14a7, a whole bunch of testcases in the nanobind test suite start to fail (example: https://github.com/wjakob/nanobind/actions/runs/14372986244/job/40299387939). These are all tests that create and pass objects and expect reference counts to behave in a certain way. This works consistently for PyPy and all tested CPython version from 3.8 all the way until 3.14a6, and so it is therefore surprising to see such a change in behavior in an alpha version bump.
I'm wondering what could cause this? Are there known issues in 3.14a7? Did reference counting / garbage collection change in some way that could cause such behavior to arise?
Thank you,
Wenzel
### CPython versions tested on:
3.14
### Operating systems tested on:
macOS, Linux
<!-- gh-linked-prs -->
### Linked PRs
* gh-132352
* gh-136613
* gh-136614
<!-- /gh-linked-prs -->
| 3dbe02ccd3eefc48ac9fa14427bb4cdb82d1ebae | 9e5cebd56d06e35faeca166813215d72f2f8906a |
python/cpython | python__cpython-132332 | # `typestruct.h` is outdated compared to implementation
# Documentation
`Doc/includes/typestruct.h` contains a copy of `_typeobject` from `Include/cpython/object.h`, but it is currently outdated.
<!-- gh-linked-prs -->
### Linked PRs
* gh-132332
<!-- /gh-linked-prs -->
| e329f74e7d24be6ae1782b5ab90e20723aa47bcd | d687900f98114bb5910daad9553ae381d7daf94b |
python/cpython | python__cpython-132348 | # Test failures when hypothesis is available but cannot reach GitHub
# Bug report
### Bug description:
Hi, we recently started seeing several tests (namely `test_binascii`, `test_math_property`, `test_tools` and `test_zoneinfo`) to fail due to hypothesis warnings (which were recently turned into errors with https://github.com/python/cpython/pull/131802):
```
hypothesis.errors.HypothesisWarning: Authorization failed when trying to download artifact from GitHub. Check that you have a valid GITHUB_TOKEN set in your environment.`
```
or alternatively with
```
hypothesis.errors.HypothesisWarning: Could not connect to GitHub to get the latest artifact.
```
when I restrict the access to the internet.
I see that running with `"CI"` set in the environment fixes the issue as the problematic profile with `GitHubArtifactDatabase` is not registered, but that seems more like a lucky workaround.
I am not sure about the solution - maybe it can check whether `"GITHUB_TOKEN"` is also available? Or maybe the warning should be ignored and not cause the tests to fail.
I also think it should honor `-urlfetch` and `-network` options.
### CPython versions tested on:
3.13
### Operating systems tested on:
Other
<!-- gh-linked-prs -->
### Linked PRs
* gh-132348
* gh-132367
<!-- /gh-linked-prs -->
| fcf2d07228ada64bc864380cd8e3e304d9768caa | 65357032e80f8750dd102c82a8adc54de067fc38 |
python/cpython | python__cpython-132363 | # `TracebackException` swallows attributes of falsey Exception and falsey ExceptionGroup.
# Bug report
### Bug description:
# Description
```
import traceback as tb
class FalseyLenException(Exception):
def __len__(self):
return 0
class FalseyBoolException(Exception):
def __bool__(self):
return False
def tracebackexception_swallows_cause_and_context():
try:
raise FalseyBoolException("Oh") from KeyError
except Exception as e:
print(f'{e = }, {e.__cause__ = }')
tb.print_exception(e)
print("---"*20)
try:
try:
1/0
except:
raise FalseyLenException("Ah")
except Exception as e:
print(f'{e = }, {e.__context__ = }')
tb.print_exception(e)
print("---"*20)
if __name__ == "__main__":
tracebackexception_swallows_cause_and_context()
```
Ouptput is:
```
e = FalseyBoolException('Oh'), e.__cause__ = KeyError()
Traceback (most recent call last):
File "/Users/yves/Desktop/Bugs/gh-132XXX.py", line 13, in tracebackexception_swallows_cause_and_context
raise FalseyBoolException("Oh") from KeyError
FalseyBoolException: Oh
------------------------------------------------------------
e = FalseyLenException('Ah'), e.__context__ = ZeroDivisionError('division by zero')
Traceback (most recent call last):
File "/Users/yves/Desktop/Bugs/gh-132XXX.py", line 23, in tracebackexception_swallows_cause_and_context
raise FalseyLenException("Ah")
FalseyLenException: Ah
```
The **Cause** or **Context** descriptions are not printed as expected.
# Where Does it from ?
These following tests are wrong.
https://github.com/python/cpython/blob/255eb375a7cc3cb16698bebf42689e8bc783ed93/Lib/traceback.py#L1123
It should be: `if (e is not None and e.__cause__ is not None`
https://github.com/python/cpython/blob/255eb375a7cc3cb16698bebf42689e8bc783ed93/Lib/traceback.py#L1144
It should be: `if (e is not None and and e.__context__ is not None`
# Linked Issues
See: https://github.com/python/cpython/pull/132129
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
macOS
<!-- gh-linked-prs -->
### Linked PRs
* gh-132363
* gh-132725
<!-- /gh-linked-prs -->
| 69cda31261dd98b0462dc5ca63bdbcd0954dfa77 | 427e7fc099e61d9a3d1f04e2fbde8b749e5fcf0a |
python/cpython | python__cpython-132324 | # Inconsistent code found by static analyzers at base_events.py
Greetings! I've been analyzing Cpython with Svace static analyzer. It has found a code inconsitency issue at the `asyncio` library in the following method:
https://github.com/python/cpython/blob/7ebbd271444d89218870169624921b795a717470/Lib/asyncio/base_events.py#L1653-L1681
The problem is a redundant comparison with a `None` value for reference `sock` here:
https://github.com/python/cpython/blob/7ebbd271444d89218870169624921b795a717470/Lib/asyncio/base_events.py#L1669-L1670
which has already been dereferenced before:
https://github.com/python/cpython/blob/7ebbd271444d89218870169624921b795a717470/Lib/asyncio/base_events.py#L1658-L1659
According to the [documentation](https://docs.python.org/3/library/asyncio-eventloop.html#:~:text=sock%20is%20a%20preexisting%20socket%20object%20returned%20from%20socket.accept), the `sock` input parameter is a preexisting object returned from the `socket.accept()` function. So it shouldn't be `None`
---
### Proposed solution
I believe it is advisable to either move the null check for `sock` to the beginning of the function, or remove it. I'm not sure which of these options would be more in line with the regulations. After I get a response, I might be able to create a pull request.
<!-- gh-linked-prs -->
### Linked PRs
* gh-132324
<!-- /gh-linked-prs -->
| a214db0c5406254d293f33622ce2cbd8233b52a5 | 1557da622c89985d14b781bef91e9aaa6e1f88c4 |
python/cpython | python__cpython-132306 | # Argument Clinic code is incompatible with older Python
Until recently I used Python 3.11 to regenerate Argument Clinic code. But `make clinic` stopped to work because Python code for some Argument Clinic converted uses syntax incompatible with 3.11. We should be conservative with Python code that is used to build Python.
<!-- gh-linked-prs -->
### Linked PRs
* gh-132306
<!-- /gh-linked-prs -->
| 487cf3c1702836dfce0025208b989853681d2cd9 | 4a919dd6eef1e5dbaddfd749f385f49cedc076a9 |
python/cpython | python__cpython-132286 | # `__annotate__` corner case when deleting `__annotations__`
Consider this example:
```python
>>> class A:
... def __annotate__(format):
... print(f'{format=}')
... return {'a': int}
...
>>> A.__annotations__
format=1
{'a': <class 'int'>}
>>> A.__annotations__
{'a': <class 'int'>}
>>> del A.__annotations__
>>> A.__annotations__
format=1
{'a': <class 'int'>}
```
In this particular case `__annotate__` is called twice. It works correctly in my opinion. But, I can't find any tests for such cases. Should I add tests for this?
CC @JelleZijlstra
<!-- gh-linked-prs -->
### Linked PRs
* gh-132286
<!-- /gh-linked-prs -->
| 254110356d17204d2aebb9e74b6074cc6ef6382e | 1f5682f3a27516833f7c317707dd359280dba6e7 |
python/cpython | python__cpython-132329 | # Py_TYPE(lhs)->tp_as_mapping->mp_subscript is not the same as Dict_Type.tp_as_mapping->mp_subscript when it should be
A dict subclass which does not override `__getitem__` (like `collections.Counter`) should have `Dict_Type.tp_as_mapping->mp_subscript` as its `Py_TYPE(lhs)->tp_as_mapping->mp_subscript`, but they are not the same.
CC @ericsnowcurrently .
<!-- gh-linked-prs -->
### Linked PRs
* gh-132329
<!-- /gh-linked-prs -->
| a23ed8b3793aa684e312711cfda9c9fd76168399 | 5707837049e8eade92e29f20f055112821b75cd0 |
python/cpython | python__cpython-132345 | # [3.14] annotationlib - calling `get_annotations` on instances gets an unexpected error
# Bug report
### Bug description:
In 3.13, `inspect.get_annotations` would fail if called on instances and give you a `TypeError` explaining as much.
In 3.14 if you call `annotationlib.get_annotations(inst, format=Format.STRING)` on an instance you currently get a more confusing error.
```python
from annotationlib import get_annotations, Format
class Example:
a: int
ex = Example()
print(get_annotations(ex, format=Format.STRING))
```
```
Traceback (most recent call last):
File "<python-input-8>", line 9, in <module>
print(get_annotations(ex, format=Format.STRING))
~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/david/src/cpython/Lib/annotationlib.py", line 719, in get_annotations
ann = _get_and_call_annotate(obj, format)
File "/home/david/src/cpython/Lib/annotationlib.py", line 826, in _get_and_call_annotate
ann = call_annotate_function(annotate, format, owner=obj)
File "/home/david/src/cpython/Lib/annotationlib.py", line 513, in call_annotate_function
return annotate(format)
TypeError: Example.__annotate__() takes 1 positional argument but 2 were given
```
As far as I can tell this appears to be because `__annotate__` has turned into a bound method.
You currently only see this if you use `Format.STRING` due to https://github.com/python/cpython/issues/125618 masking the issue, as with both other formats if `__annotations__` has been created on the class it is used instead of calling `__annotate__` and if it doesn't you get an empty dict.
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
_No response_
<!-- gh-linked-prs -->
### Linked PRs
* gh-132345
<!-- /gh-linked-prs -->
| 07b8d3117fdbc4e5be55aab0be428c278ec84e12 | e5f68fd29b3bd867207f23608a8dbc5759a056ed |
python/cpython | python__cpython-132258 | # Our GCC LTO flags can be improved
# Feature or enhancement
### Proposal:
@thesamesam pointed out to me that our GCC LTO configuration builds serially and as a single translation unit IIUC. This is the slowest configuration possible. On GCC 15, the LTO build takes 10m14.972s, in my first PR, it takes 2m28.287s. This is a multiple factor reduction in build times.
Benchmarks show basically no change in performance --- 1.004x slower on one machine, and 1.000x faster on another machine. This is basically in the realm of noise.
https://github.com/faster-cpython/benchmarking-public/tree/main/results/bm-20250407-3.14.0a6+-8891cd2
### Has this already been discussed elsewhere?
No response given
### Links to previous discussion of this feature:
_No response_
<!-- gh-linked-prs -->
### Linked PRs
* gh-132258
<!-- /gh-linked-prs -->
| bc0b94b30c9d65ba550daee2c2ef20035defd980 | 07b8d3117fdbc4e5be55aab0be428c278ec84e12 |
python/cpython | python__cpython-132251 | # `_ccall_callback` method of `_lsprof.Profiler` causes Fatal Python error
# Crash report
### What happened?
When a `_lsprof.Profiler` is enabled and a `TypeError` is raised from mismatching descriptor and target, a Fatal Python error happens due to `_ccall_callback ` returning a result with an exception set:
```python
import _lsprof
prof = _lsprof.Profiler()
prof.enable()
def mismatch(first, second):
first.find(second())
mismatch(bytes, str)
# mismatch(str, bytes)
# mismatch(str, list)
Fatal Python error: _Py_CheckFunctionResult: a function returned a result with an exception set
Python runtime state: initialized
TypeError: descriptor 'find' for 'bytes' objects doesn't apply to a 'str' object
The above exception was the direct cause of the following exception:
SystemError: <built-in method _ccall_callback of _lsprof.Profiler object at 0x20000922f10> returned a result with an exception set
Stack (most recent call first):
File "/mnt/c/Users/ddini/crashers/main/cProfile-fatal_python_error-abort/source2.py", line 7 in mismatch
File "/mnt/c/Users/ddini/crashers/main/cProfile-fatal_python_error-abort/source2.py", line 9 in <module>
Program received signal SIGABRT, Aborted.
```
Backtrace:
```
#0 __pthread_kill_implementation (no_tid=0, signo=6, threadid=140737350580032) at ./nptl/pthread_kill.c:44
#1 __pthread_kill_internal (signo=6, threadid=140737350580032) at ./nptl/pthread_kill.c:78
#2 __GI___pthread_kill (threadid=140737350580032, signo=signo@entry=6) at ./nptl/pthread_kill.c:89
#3 0x00007ffff7ce0476 in __GI_raise (sig=sig@entry=6) at ../sysdeps/posix/raise.c:26
#4 0x00007ffff7cc67f3 in __GI_abort () at ./stdlib/abort.c:79
#5 0x000055555590ba45 in fatal_error_exit (status=<optimized out>) at Python/pylifecycle.c:3140
#6 0x000055555591879a in fatal_error (fd=2, header=header@entry=1,
prefix=prefix@entry=0x555555a27b40 <__func__.23> "_Py_CheckFunctionResult",
msg=msg@entry=0x555555a275a0 "a function returned a result with an exception set", status=status@entry=-1)
at Python/pylifecycle.c:3356
#7 0x000055555591880c in _Py_FatalErrorFunc (func=func@entry=0x555555a27b40 <__func__.23> "_Py_CheckFunctionResult",
msg=msg@entry=0x555555a275a0 "a function returned a result with an exception set") at Python/pylifecycle.c:3372
#8 0x000055555567dfe8 in _Py_CheckFunctionResult (tstate=tstate@entry=0x555555cd6498 <_PyRuntime+361432>,
callable=callable@entry=<built-in method _ccall_callback of _lsprof.Profiler object at remote 0x20000922f10>,
result=<optimized out>, where=where@entry=0x0) at Objects/call.c:65
#9 0x00005555558f1298 in _PyObject_VectorcallTstate (kwnames=0x0, nargsf=9223372036854775812, args=0x7fffffffd478,
callable=<built-in method _ccall_callback of _lsprof.Profiler object at remote 0x20000922f10>,
tstate=0x555555cd6498 <_PyRuntime+361432>) at ./Include/internal/pycore_call.h:170
#10 call_one_instrument (interp=interp@entry=0x555555c9de40 <_PyRuntime+130432>,
tstate=tstate@entry=0x555555cd6498 <_PyRuntime+361432>, args=args@entry=0x7fffffffd478,
nargsf=nargsf@entry=9223372036854775812, tool=tool@entry=2 '\002', event=event@entry=4) at Python/instrumentation.c:985
#11 0x00005555558f373f in call_instrumentation_vector (instr=instr@entry=0x200009f241c,
tstate=tstate@entry=0x555555cd6498 <_PyRuntime+361432>, event=event@entry=4, frame=frame@entry=0x7ffff7fb0090,
arg2=arg2@entry=0x200009f241c, nargs=<optimized out>, nargs@entry=4, args=0x7fffffffd470) at Python/instrumentation.c:1172
#12 0x00005555558f5d65 in _Py_call_instrumentation_2args (tstate=tstate@entry=0x555555cd6498 <_PyRuntime+361432>,
event=event@entry=4, frame=frame@entry=0x7ffff7fb0090, instr=instr@entry=0x200009f241c, arg0=<optimized out>,
arg1=<optimized out>) at Python/instrumentation.c:1227
#13 0x0000555555867263 in _PyEval_EvalFrameDefault (tstate=tstate@entry=0x555555cd6498 <_PyRuntime+361432>, frame=0x7ffff7fb0090,
frame@entry=0x7ffff7fb0020, throwflag=throwflag@entry=0) at Python/generated_cases.c.h:6122
#14 0x00005555558859f2 in _PyEval_EvalFrame (throwflag=0, frame=0x7ffff7fb0020, tstate=0x555555cd6498 <_PyRuntime+361432>)
at ./Include/internal/pycore_ceval.h:119
```
Found using [fusil](https://github.com/devdanzin/fusil) by @vstinner.
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
Linux
### Output from running 'python -VV' on the command line:
Python 3.14.0a6+ (heads/main:be2d2181e62, Mar 31 2025, 07:30:17) [GCC 11.4.0]
<!-- gh-linked-prs -->
### Linked PRs
* gh-132251
* gh-132281
<!-- /gh-linked-prs -->
| ab64130b572424695bf072f7608a536997dce14f | efd8aca62c214dde6115822a659403fb05340680 |
python/cpython | python__cpython-132247 | # Add PEP 688 special buffer methods to C API Type Object and Buffer Protocol docs
# Documentation
Two special methods, `__buffer__` and `__release_buffer__` were added to Python 3.12 by PEP-688. The C API Type Object documentation for slots includes `tp_as_buffer`, and sub-slots `bf_getbuffer`, `bf_releasebuffer` but does not refer to the Python Data Model version of those. Add the missing references.
C API Type Object: https://docs.python.org/3/c-api/typeobj.html#tp-slots
Data Model: https://docs.python.org/3/reference/datamodel.html#emulating-buffer-types
<!-- gh-linked-prs -->
### Linked PRs
* gh-132247
* gh-132249
* gh-132282
* gh-134426
* gh-134427
<!-- /gh-linked-prs -->
| b529b60fc239d19245e5fafd0514d90097c2eb40 | d862b6de1bcff01229318d7138ddaab755723a43 |
python/cpython | python__cpython-132222 | # `dataclasses` docs do not mention that `kw_only` fields are ignored from `__match_args__`
# Bug report
# Documentation
Docs right now: https://docs.python.org/3.14/library/dataclasses.html#dataclasses.dataclass
```
match_args: If true (the default is True), the [__match_args__](https://docs.python.org/3.14/reference/datamodel.html#object.__match_args__)
tuple will be created from the list of parameters to the generated
[__init__()](https://docs.python.org/3.14/reference/datamodel.html#object.__init__)
method (even if __init__() is not generated, see above).
If false, or if __match_args__ is already defined in the class,
then __match_args__ will not be generated.
```
But, in runtime this does not work this way:
```python
>>> import dataclasses
>>> @dataclasses.dataclass(kw_only=True)
... class A:
... a: int
...
>>> print(A.__match_args__)
()
```
It only add non-kw-only params here:
- https://github.com/python/cpython/blob/895d983b5c9716aaaab34d14d278084b9b6730d8/Lib/dataclasses.py#L1174-L1177
- https://github.com/python/cpython/blob/895d983b5c9716aaaab34d14d278084b9b6730d8/Lib/dataclasses.py#L411-L417
Found while working on https://github.com/python/mypy/pull/18892
I have a PR ready.
Thanks to @sterliakov!
<!-- gh-linked-prs -->
### Linked PRs
* gh-132222
* gh-132226
* gh-132227
<!-- /gh-linked-prs -->
| 8b62374b344f5da852bed9f16619736d4d43936b | e80ed2cf75384bab09e70f0f04d17e92183fdf12 |
python/cpython | python__cpython-132215 | # Data race between set_richcompare and frozenset_hash under free-threading
# Bug report
### Bug description:
We have the following TSAN report from coming JAX CI:
```
==================
WARNING: ThreadSanitizer: data race (pid=40645)
Read of size 8 at 0x7fffb6bdc1a0 by thread T6 (mutexes: read M0):
#0 set_richcompare /__w/jax/jax/cpython/Objects/setobject.c:2144:16 (python3.14+0x2e1904) (BuildId: 48c7ba326d9f22d081e76424a9d52fc8476e98f5)
#1 do_richcompare /__w/jax/jax/cpython/Objects/object.c:1054:15 (python3.14+0x2a644b) (BuildId: 48c7ba326d9f22d081e76424a9d52fc8476e98f5)
#2 PyObject_RichCompare /__w/jax/jax/cpython/Objects/object.c:1103:21 (python3.14+0x2a644b)
#3 _PyEval_EvalFrameDefault /__w/jax/jax/cpython/Python/generated_cases.c.h:4471:35 (python3.14+0x40690b) (BuildId: 48c7ba326d9f22d081e76424a9d52fc8476e98f5)
#4 _PyEval_EvalFrame /__w/jax/jax/cpython/./Include/internal/pycore_ceval.h:119:16 (python3.14+0x3f7550) (BuildId: 48c7ba326d9f22d081e76424a9d52fc8476e98f5)
#5 _PyEval_Vector /__w/jax/jax/cpython/Python/ceval.c:1902:12 (python3.14+0x3f7550)
#6 _PyFunction_Vectorcall /__w/jax/jax/cpython/Objects/call.c (python3.14+0x1f1a8f) (BuildId: 48c7ba326d9f22d081e76424a9d52fc8476e98f5)
#7 _PyObject_VectorcallTstate /__w/jax/jax/cpython/./Include/internal/pycore_call.h:169:11 (python3.14+0x2f9e4a) (BuildId: 48c7ba326d9f22d081e76424a9d52fc8476e98f5)
...
Previous atomic write of size 8 at 0x7fffb6bdc1a0 by thread T8 (mutexes: read M0):
#0 _Py_atomic_store_ssize_relaxed /__w/jax/jax/cpython/./Include/cpython/pyatomic_gcc.h:513:3 (python3.14+0x2e22b9) (BuildId: 48c7ba326d9f22d081e76424a9d52fc8476e98f5)
#1 frozenset_hash /__w/jax/jax/cpython/Objects/setobject.c:801:5 (python3.14+0x2e22b9)
#2 PyObject_Hash /__w/jax/jax/cpython/Objects/object.c (python3.14+0x2a6c56) (BuildId: 48c7ba326d9f22d081e76424a9d52fc8476e98f5)
#3 tuple_hash /__w/jax/jax/cpython/Objects/tupleobject.c:321:27 (python3.14+0x2f38bf) (BuildId: 48c7ba326d9f22d081e76424a9d52fc8476e98f5)
#4 PyObject_Hash /__w/jax/jax/cpython/Objects/object.c (python3.14+0x2a6c56) (BuildId: 48c7ba326d9f22d081e76424a9d52fc8476e98f5)
#5 builtin_hash /__w/jax/jax/cpython/Python/bltinmodule.c:1736:9 (python3.14+0x3f0d15) (BuildId: 48c7ba326d9f22d081e76424a9d52fc8476e98f5)
```
Probably missing atomic read here:
https://github.com/python/cpython/blob/f2daa96c81a45b26bdcf3d5c3887cec02137974e/Objects/setobject.c#L2144
CPython version: Python 3.14.0a6+ experimental free-threading build (heads/main:8680400, Apr 6 2025, 05:24:33) [Clang 18.1.3 (1ubuntu1)]
cc @kumaraditya303
### CPython versions tested on:
3.14
### Operating systems tested on:
Linux
<!-- gh-linked-prs -->
### Linked PRs
* gh-132215
* gh-132447
<!-- /gh-linked-prs -->
| ed99e28d5b5613f7c13691fd854195719d7bff1f | fd1b98dd1df14c8e4138d779166635c98926197b |
python/cpython | python__cpython-132212 | # Abort when using a tuple subclass instance as the `bases` parameter for `type`
# Crash report
### What happened?
The interpreter will abort when a new type is created using an instance of a subclass of `tuple` as the `bases` parameter due to a `PyTuple_CheckExact(bases)` assertion:
```python
class weird_tuple(tuple): pass
c = type("c", weird_tuple((str,)), {})
python: Objects/typeobject.c:500: set_tp_bases: Assertion `PyTuple_CheckExact(bases)' failed.
Aborted (core dumped)
```
Found using [fusil](https://github.com/devdanzin/fusil) by @vstinner.
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
Linux
### Output from running 'python -VV' on the command line:
Python 3.14.0a6+ (heads/main:04bc681e7cf, Apr 4 2025, 12:38:19) [GCC 11.4.0]
<!-- gh-linked-prs -->
### Linked PRs
* gh-132212
* gh-132548
<!-- /gh-linked-prs -->
| b6c552f9e614bab4acf21584baed997f57e74114 | e10fe81cc6ae0979938eb3925139d56a74c620e3 |
python/cpython | python__cpython-132175 | # Incorrect function name in error message of `_interpreters.run_string`
While working on https://github.com/python/cpython/pull/132173 I've noticed that this error message mentions the wrong function:
```python
>>> import _interpreters
>>> _interpreters.create()
1
>>> _interpreters.run_string(1, '')
Traceback (most recent call last):
File "<python-input-2>", line 1, in <module>
_interpreters.run_string(1, '')
~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^
ValueError: _interpreters.exec(): bad script text (too short)
```
It should be:
```python
>>> import _interpreters
>>> _interpreters.create()
1
>>> _interpreters.run_string(1, '')
Traceback (most recent call last):
File "<python-input-4>", line 1, in <module>
_interpreters.run_string(1, '')
~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^
ValueError: _interpreters.run_string(): bad script text (too short)
```
I have a PR ready.
<!-- gh-linked-prs -->
### Linked PRs
* gh-132175
* gh-132209
<!-- /gh-linked-prs -->
| f2daa96c81a45b26bdcf3d5c3887cec02137974e | af8d1b95377917036aaedf18b9cc047d8877259c |
python/cpython | python__cpython-132173 | # Assertion failure calling `_interpreters.run_string` with a string subclass instance
# Crash report
### What happened?
It's possible to make the interpreter abort by calling `_interpreters.run_string` with an instance of a subclass of `str` as the `script` argument:
```python
import _interpreters
class weird_str(str): pass
_interpreters.create()
_interpreters.run_string(1, weird_str('1'))
python: ./Modules/_interpretersmodule.c:333: get_code_str: Assertion `PyUnicode_CheckExact(arg) && (check_code_str((PyUnicodeObject *)arg) == NULL)' failed.
Aborted (core dumped)
```
This happens because, after a check that `arg` is a `str` or subclass, there's an assertion that `arg` is exactly an instance of `str`:
```c
if (PyUnicode_Check(arg)) {
assert(PyUnicode_CheckExact(arg)
&& (check_code_str((PyUnicodeObject *)arg) == NULL));
```
Found using [fusil](https://github.com/devdanzin/fusil) by @vstinner.
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
Linux
### Output from running 'python -VV' on the command line:
Python 3.14.0a6+ (heads/main:04bc681e7cf, Apr 4 2025, 12:38:19) [GCC 11.4.0]
<!-- gh-linked-prs -->
### Linked PRs
* gh-132173
* gh-132219
<!-- /gh-linked-prs -->
| 398071871066548954f4c51e8250d13b7c9659e0 | 895d983b5c9716aaaab34d14d278084b9b6730d8 |
python/cpython | python__cpython-132169 | # Add `__class_getitem__` support to `ctypes.py_object`
# Feature or enhancement
### Proposal:
[`ctypes.py_object`](https://docs.python.org/3/library/ctypes.html#ctypes.py_object) is [generic in typeshed](https://github.com/python/typeshed/blob/1c17cd429c2f91b0066547deb99c537af3e54d39/stdlib/ctypes/__init__.pyi#L253), but is not subscriptable at runtime. This can be troublesome for end users, since type checkers will prompt them to supply a generic type argument, but doing so will produce a `TypeError` at runtime:
```python
>>> import ctypes
>>> ctypes.py_object[int]
Traceback (most recent call last):
File "<python-input-1>", line 1, in <module>
ctypes.py_object[int]
~~~~~~~~~~~~~~~~^^^^^
TypeError: type 'py_object' is not subscriptable
```
(albeit this is partially mitigated by deferred annotations in 3.14, but `TypeError` can still pop up if the annotations are ever evaluated)
`py_object`'s typeshed stubs have been stable for a while, and it seems unlikely to be made non-generic in the future. Therefore I propose that `__class_getitem__` be added to `ctypes.py_object` so that it can be subscripted at runtime.
### Has this already been discussed elsewhere?
This is a minor feature, which does not need previous discussion elsewhere
### Links to previous discussion of this feature:
https://github.com/python/typeshed/pull/13760
<!-- gh-linked-prs -->
### Linked PRs
* gh-132169
<!-- /gh-linked-prs -->
| e2476398ee9911b6b0b80e3ca182647805fde81f | 0788948dcb980c7648b29ca363390b696d7f188f |
python/cpython | python__cpython-132164 | # Tests for Py_Universalnewlinefgets
Cover by tests Py_Universalnewlinefgets as mentioned at [TODO](https://github.com/python/cpython/blob/c0661df42ad20e488dbfa3e0fec22462833fc3d6/Lib/test/test_capi/test_file.py#L297)
<!-- gh-linked-prs -->
### Linked PRs
* gh-132164
<!-- /gh-linked-prs -->
| d7365e60500bea91383010a4bf9e26ff3acdfaa1 | 06a26fda607fb1a5e108cf82a0458c8ebf97f5d2 |
python/cpython | python__cpython-132160 | # Do not shadow user arguments in generated `__new__` by `@warnings.deprecated`
# Bug report
### Bug description:
Follow comment https://github.com/python/cpython/pull/132055#discussion_r2029062118
```python
from warnings import deprecated
@deprecated("MyMeta will go away soon")
class MyMeta(type):
def __new__(mcs, name, bases, attrs, cls=None):
return super().__new__(mcs, name, bases, attrs)
class Foo(metaclass=MyMeta, cls='haha'):
pass
```
Output:
```console
$ python3 test.py
Traceback (most recent call last):
File "/Users/PanXuehai/Projects/cpython/test.py", line 10, in <module>
class Foo(metaclass=MyMeta, cls='haha'):
pass
TypeError: MyMeta.__new__() got multiple values for argument 'cls'
```
### CPython versions tested on:
3.13
### Operating systems tested on:
macOS
<!-- gh-linked-prs -->
### Linked PRs
* gh-132160
* gh-132163
<!-- /gh-linked-prs -->
| 7bb1e1a23634bae81bf76fdb34e9f9f7e59b3793 | c0661df42ad20e488dbfa3e0fec22462833fc3d6 |
python/cpython | python__cpython-132248 | # `test.test_sys.TestRemoteExec` fails with `AssertionError`
# Bug report
### Bug description:
The test case `test_sys` failed when I ran `rt.bat test_sys`. The unittest report is as follow
```cmd
FAIL: test_remote_exec_raises_audit_event (test.test_sys.TestRemoteExec.test_remote_exec_raises_audit_event)
Test remote exec raises an audit event
----------------------------------------------------------------------
Traceback (most recent call last):
File "C:\Users\Administrator\Desktop\project\cpython\Lib\test\test_sys.py", line 2106, in test_remote_exec_raises_audit_event
self.assertIn(b"Remote script executed successfully!", stdout)
~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: b'Remote script executed successfully!' not found in b'Target process running...\r\n'
----------------------------------------------------------------------
Ran 90 tests in 1.495s
FAILED (failures=1, skipped=7)
test test_sys failed
== Tests result: FAILURE ==
```
It seems that the problem is caused by an unfinished subprocess since it runs synchronizely. However, when I commented the first two assertion statements.
```python
# self.assertIn(b"Remote script executed successfully!", stdout)
# self.assertIn(b"Audit event: remote_debugger_script, arg: ", stdout)
self.assertEqual(stderr, b"")
```
The `stderr` is printed out as follow
```
Traceback (most recent call last):
File "C:\Users\Administrator\Desktop\project\cpython\Lib\test\test_sys.py", line 2108, in test_remote_exec_raises_audit_event
self.assertEqual(stderr, b"")
~~~~~~~~~~~~~~~~^^^^^^^^^^^^^
AssertionError: b'Exception ignored in audit hook:\r\nTrace[295 chars]\r\n' != b''
```
OS: Windows 10 22H2
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
Windows
<!-- gh-linked-prs -->
### Linked PRs
* gh-132248
<!-- /gh-linked-prs -->
| d6078ed6d0cb8745460769bbb5dd2392c91c2f55 | e294e161a86b325e634b001e1edafdb1cb7d40c4 |
python/cpython | python__cpython-132146 | # `typing.Union` does not support attribute assignment post gh-105511
# Bug report
### Bug description:
Before #105511, `typing.Union` is implemented in Python, and custom attributes can be assigned to a `Union` variable.
- #105511
```python
ta = Union[int, str]
ta.__some_attribute__ = (int, str)
```
However, after #105511, `typing.Union` is now implemented in C, and no attributes can be assigned to it. The `UnionType` does not allow subclassing; users cannot bypass this using subclassing.
```python
$ ipython
Python 3.14.0a6+ experimental free-threading build (heads/main:1755157207c, Apr 6 2025, 02:21:10) [Clang 17.0.0 (clang-1700.0.13.3)]
Type 'copyright', 'credits' or 'license' for more information
IPython 9.0.2 -- An enhanced Interactive Python. Type '?' for help.
Tip: Use `object?` to see the help on `object`, `object??` to view it's source
In [1]: import optree
In [2]: optree.PyTree[int]
/Users/PanXuehai/Projects/optree/env/lib/python3.14t/site-packages/IPython/core/interactiveshell.py:3111: SyntaxWarning: 'return' in a 'finally' block
return result
╭────────────────────────────────────────────────────────────────────── Traceback (most recent call last) ───────────────────────────────────────────────────────────────────────╮
│ in <module>:1 │
│ │
│ /Users/PanXuehai/Projects/cpython/.pydev/lib/python3.14t/typing.py:398 in inner │
│ │
│ 395 │ │ @functools.wraps(func) │
│ 396 │ │ def inner(*args, **kwds): │
│ 397 │ │ │ try: │
│ ❱ 398 │ │ │ │ return _caches[func](*args, **kwds) │
│ 399 │ │ │ except TypeError: │
│ 400 │ │ │ │ pass # All real errors (not unhashable args) are raised below. │
│ 401 │ │ │ return func(*args, **kwds) │
│ │
│ /Users/PanXuehai/Projects/optree/optree/typing.py:254 in __class_getitem__ │
│ │
│ 251 │ │ │ Deque[recurse_ref], # type: ignore[valid-type] │
│ 252 │ │ │ CustomTreeNode[recurse_ref], # type: ignore[valid-type] │
│ 253 │ │ ] │
│ ❱ 254 │ │ pytree_alias.__pytree_args__ = item # type: ignore[attr-defined] │
│ 255 │ │ │
│ 256 │ │ # pylint: disable-next=no-member │
│ 257 │ │ original_copy_with = pytree_alias.copy_with # type: ignore[attr-defined] │
╰────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯
AttributeError: 'typing.Union' object has no attribute '__pytree_args__' and no __dict__ for setting new attributes
In [3]: class Foo(type(int | str)):
...: pass
...:
╭────────────────────────────────────────────────────────────────────── Traceback (most recent call last) ───────────────────────────────────────────────────────────────────────╮
│ in <module>:1 │
╰────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯
TypeError: type 'typing.Union' is not an acceptable base type
```
Repro:
```bash
./python -m pip install -v optree
./python -c 'import optree; optree.PyTree[int]'
```
Source: https://github.com/metaopt/optree/blob/v0.15.0/optree/typing.py#L246-L254
cc @JelleZijlstra
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
macOS
<!-- gh-linked-prs -->
### Linked PRs
* gh-132146
* gh-132157
<!-- /gh-linked-prs -->
| dbfc6a417a5db237ff16a8a75f09c1bd5d5bd349 | 0dba59e6899cd0b1717e3c1dc6110b18c91b0f8f |
python/cpython | python__cpython-132135 | # Add .cache directory to .gitignore
# Bug report
### Bug description:
For now, there are many people use vscode + clangd to developer cpython. But the clangd will generate a `.cache` directory under the base directory and the behavior could not be customized. So I think maybe we can add the `.cache` to the `.gitignore`
FYI https://github.com/clangd/clangd/issues/946
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
Linux
<!-- gh-linked-prs -->
### Linked PRs
* gh-132135
* gh-132144
* gh-132145
<!-- /gh-linked-prs -->
| 86804003ed70acbf8a2531c6784895d750c50456 | 85bc489b649fe261f9625163c684a69a470b3dc1 |
python/cpython | python__cpython-134085 | # Ensure that `multiprocessing.util.get_temp_dir()` can be used to create socket files with limited path length
# Bug report
### Bug description:
I must admit that this issue only happens in very specific conditions, namely when using the multiprocessing lib on a system where the temp folder is set to a long path by the user. One could argue this is a user error, but bear with me a second.
The problem is in `multiprocessing.util.get_temp_dir`
```python
def get_temp_dir():
# get name of a temp directory which will be automatically cleaned up
tempdir = process.current_process()._config.get('tempdir') # This could be set to an arbitrary long path by users
if tempdir is None:
import shutil, tempfile
tempdir = tempfile.mkdtemp(prefix='pymp-')
info('created temp directory %s', tempdir)
# keep a strong reference to shutil.rmtree(), since the finalizer
# can be called late during Python shutdown
Finalize(None, _remove_temp_dir, args=(shutil.rmtree, tempdir),
exitpriority=-100)
process.current_process()._config['tempdir'] = tempdir
return tempdir
```
This function is used in `multiprocessing.connect.arbitrary_address`
```python
def arbitrary_address(family):
'''
Return an arbitrary free address for the given family
'''
if family == 'AF_INET':
return ('localhost', 0)
elif family == 'AF_UNIX':
return tempfile.mktemp(prefix='listener-', dir=util.get_temp_dir())
elif family == 'AF_PIPE':
return tempfile.mktemp(prefix=r'\\.\pipe\pyc-%d-%d-' %
(os.getpid(), next(_mmap_counter)), dir="")
else:
raise ValueError('unrecognized family')
```
Where this is problematic is that arbitrary_address is used in `multiprocessing.forkserver.Forkserver.ensure_running` which uses the address provided by arbitrary_address to create and bind to a socket
```python
with socket.socket(socket.AF_UNIX) as listener:
address = connection.arbitrary_address('AF_UNIX')
listener.bind(address)
if not util.is_abstract_socket_namespace(address):
os.chmod(address, 0o600)
listener.listen()
```
Since UNIX sockets path have a limited character count between 92 and 108 [1], it would make sense for the std lib to have safe guards against generating paths that are too long to begin with. Sure, users can use work arounds such as setting TMP_DIR="/tmp" [2] but this requires each and every user of the multiprocessing library to be aware of such limitations.
I propose we fix the problem once and for all at the source, by checking the size of the path created by `tempfile.mktemp(prefix='listener-', dir=util.get_temp_dir())` and should it be greater or equal to the max length supported by the platform, reverting to what `get_temp_dir()` does when `tempdir=None`
[1] https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/sys_un.h.html#tag_13_67_04
[2] https://patchwork.ozlabs.org/project/qemu-devel/patch/20220722182508.89761-2-peter@pjd.dev/#2938322
### CPython versions tested on:
3.11
### Operating systems tested on:
Linux
<!-- gh-linked-prs -->
### Linked PRs
* gh-134085
* gh-134447
* gh-134448
<!-- /gh-linked-prs -->
| 1a07a01014bde23acd2684916ef38dc0cd73c2de | e1f891414b2329414a6160ed246f5f869a218bfd |
python/cpython | python__cpython-132122 | # pygettext: Always escape non-printable characters regardless of the `--escape` option
# Feature or enhancement
### Proposal:
For context: https://github.com/python/cpython/pull/131902#discussion_r2022611826
> [...] but I think that non-printable characters should always be escaped. The POT file should be human readable.
Currently, we only escape non-printable ASCII chars, other non-printable characters are not escaped when the `--escape` is not passed.
### Has this already been discussed elsewhere?
This is a minor feature, which does not need previous discussion elsewhere
### Links to previous discussion of this feature:
_No response_
<!-- gh-linked-prs -->
### Linked PRs
* gh-132122
<!-- /gh-linked-prs -->
| a693eaa7104f3d2e42a3a1e0347775a3d2757b05 | 7bb1e1a23634bae81bf76fdb34e9f9f7e59b3793 |
python/cpython | python__cpython-132446 | # dataclasses.InitVar undocumented
# Documentation
dataclasses.InitVar is mentioned in https://docs.python.org/3.14/library/dataclasses.html#init-only-variables but not itself documented or linkable to
<!-- gh-linked-prs -->
### Linked PRs
* gh-132446
* gh-132483
<!-- /gh-linked-prs -->
| 281fc338fdf57ef119e213bf1b2c772261c359c1 | 1d97488c957f4595f8c3ea42e24c1995b23e39d4 |
python/cpython | python__cpython-132107 | # Allow logging.handlers.QueueListener to be used as a context manager
# Feature or enhancement
### Proposal:
This is a simple change that would allow:
```python
with QueueListener(queue, handler1) as listener:
# the listener has started
...
# the listener has stopped
```
It's a welcomed alternative to needing to call start/stop manually.
### Has this already been discussed elsewhere?
I have already discussed this feature proposal on Discourse
### Links to previous discussion of this feature:
https://discuss.python.org/t/allow-logging-handlers-queuelistener-to-be-used-as-a-context-manager/87124
<!-- gh-linked-prs -->
### Linked PRs
* gh-132107
* gh-132444
* gh-132471
<!-- /gh-linked-prs -->
| 517e96b9ed9f2b808ce499d01f6b5db5635218e3 | ad3bbe8fbcc9045c436b0c5e49b1aec018c59c2d |
python/cpython | python__cpython-132118 | # Inconsistency in handling Bluetooth addresses
# Bug report
1. The format accepted by BTPROTO_HCI protocol is incorrectly documented.
* it accepts a bytes object `bdaddr`, not a tuple.
* `bdaddr` is a bytes object, not a string.
2. Some protocols accept `bdaddr` as a string, others accept it as a bytes object. `getsockname()` returns it as a string or a bytes object, and this is not always consistent with the accepted type.
3. `getsockname()` not always return an address in the acceptable format. It returns `device_id` when the acceptable format is a tuple `(device_id,)`, can return a string when the acceptable format is a bytes object.
First problem should be solved by updating the documentation.
For second problem, I propose to make both string and bytes be accepted as a Bluetooth address. Also, if a 1-tuple is accepted, then its element should be accepted, and if `bdaddr` is accepted, then a 1-tuple `(bdaddr,)` should be accepted.
The third problem cannot be resolved in backward compatible way. The solution for the second problem formally fixes incompatibility between input and output formats, but formats are still inconsistent between protocols. And after adding support for `hci_channel` (see #70145), the type of the `getsockname()` result will depend on the `hci_channel` value.
<!-- gh-linked-prs -->
### Linked PRs
* gh-132118
* gh-132482
* gh-132486
* gh-132497
* gh-132525
<!-- /gh-linked-prs -->
| 1d97488c957f4595f8c3ea42e24c1995b23e39d4 | c7f6535e4a3b447fbd67bf98eea82fd243e780be |
python/cpython | python__cpython-131605 | # UBSan: runtime undefined behaviours when using `-fsanitize=undefined -fno-sanitize-recover`
# Bug report
### Bug description:
We finally managed to fix gh-111178, but this is assuming that Python is compiled with `-fsanitize=function`. When compiling Python as follows (with clang 18.1.8):
```sh
./configure \
-q --with-pydebug \
--with-undefined-behavior-sanitizer \
CC=clang LD=clang \
CFLAGS="-fsanitize=undefined -fno-sanitize-recover" \
LDFLAGS="-fsanitize=undefined -fno-sanitize-recover"
```
we still have some tests failing:
- https://github.com/python/cpython/pull/131605#issuecomment-2779318764
- https://github.com/python/cpython/pull/131605#issuecomment-2779323572 (cc @vstinner as the original author to gh-131674).
Others related to the second item above:
<details>
```
0:00:56 load avg: 32.43 [448/486/3] test_xxtestfuzz worker non-zero exit code (Exit code 1) -- running (2): test.test_multiprocessing_spawn.test_processes (54.6 sec), test.test_multiprocessing_forkserver.test_processes (55.2 sec)
Modules/expat/xmlparse.c:6779:5: runtime error: call to function expat_default_handler through pointer to incorrect function type 'void (*)(void *, const char *, int)'
/$HOME/lib/python/cpython/./Modules/_elementtree.c:3212: note: expat_default_handler defined here
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior Modules/expat/xmlparse.c:6779:5
```
</details>
Others on fautlhandler, but I'm not sure whether this is the UB that is being reported or something else:
<details>
```txt
#0 0x7ff4cf25f76b in raise (/lib64/libpthread.so.0+0x1676b) (BuildId: 938e42b7e407d175ee3ef9a89c038168101d330c)
#1 0x55776b2dc6f2 in faulthandler_raise_sigsegv /$HOME/lib/python/cpython/./Modules/faulthandler.c:1053:5
#2 0x55776b2dc6f2 in faulthandler_sigsegv /$HOME/lib/python/cpython/./Modules/faulthandler.c:1069:9
#3 0x55776b01e13d in cfunction_call /$HOME/lib/python/cpython/Objects/methodobject.c:562:18
#4 0x55776af71824 in _PyObject_MakeTpCall /$HOME/lib/python/cpython/Objects/call.c:242:18
#5 0x55776b1a4db0 in _PyEval_EvalFrameDefault /$HOME/lib/python/cpython/Python/generated_cases.c.h:1434:35
#6 0x55776b174755 in _PyEval_Vector /$HOME/lib/python/cpython/Python/ceval.c:1902:12
#7 0x55776b1744d9 in PyEval_EvalCode /$HOME/lib/python/cpython/Python/ceval.c:829:21
#8 0x55776b2956b3 in run_mod /$HOME/lib/python/cpython/Python/pythonrun.c:1436:19
#9 0x55776b292931 in _PyRun_StringFlagsWithName /$HOME/lib/python/cpython/Python/pythonrun.c:1259:15
#10 0x55776b292931 in _PyRun_SimpleStringFlagsWithName /$HOME/lib/python/cpython/Python/pythonrun.c:578:15
#11 0x55776b2d70e5 in pymain_run_command /$HOME/lib/python/cpython/Modules/main.c:255:11
#12 0x55776b2d70e5 in pymain_run_python /$HOME/lib/python/cpython/Modules/main.c:671:21
#13 0x55776b2d70e5 in Py_RunMain /$HOME/lib/python/cpython/Modules/main.c:761:5
#14 0x55776b2d7775 in pymain_main /$HOME/lib/python/cpython/Modules/main.c:791:12
#15 0x55776b2d7802 in Py_BytesMain /$HOME/lib/python/cpython/Modules/main.c:815:12
#16 0x7ff4cf03624c in __libc_start_main (/lib64/libc.so.6+0x3524c) (BuildId: 74f77bf013a66413c77197c121955e029c32d259)
#17 0x55776ae8dd49 in _start /home/abuild/rpmbuild/BUILD/glibc-2.31/csu/../sysdeps/x86_64/start.S:120
UndefinedBehaviorSanitizer can not provide additional info.
SUMMARY: UndefinedBehaviorSanitizer: SEGV (/lib64/libpthread.so.0+0x1676b) (BuildId: 938e42b7e407d175ee3ef9a89c038168101d330c) in raise
==9369==ABORTING
```
</details>
Finally, `test_regrtest` also fails but the test suite just hangs after crashing (but the UB seems to happen in a test related to XML so it's probably the same thing):
<details>
```
0:01:16 load avg: 26.11 [485/486/5] test_regrtest failed (1 failure) (38.8 sec) -- running (1): test_socket (35.7 sec)
test test_regrtest failed -- Traceback (most recent call last):
File "/$HOME/lib/python/cpython/Lib/test/test_regrtest.py", line 2289, in test_xml
output = self.run_tests(testname, "--junit-xml", filename,
exitcode=EXITCODE_BAD_TEST)
File "/$HOME/lib/python/cpython/Lib/test/test_regrtest.py", line 927, in run_tests
return self.run_python(cmdargs, **kw)
~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^
File "/$HOME/lib/python/cpython/Lib/test/test_regrtest.py", line 777, in run_python
proc = self.run_command(args, **kw)
File "/$HOME/lib/python/cpython/Lib/test/test_regrtest.py", line 768, in run_command
self.fail(msg)
~~~~~~~~~^^^^^
AssertionError: Command ['/$HOME/lib/python/cpython/python', '-X', 'faulthandler', '-I', '-m', 'test', '--testdir=/tmp/test_python_3mwd8cdm/tmpsfkk6fdz', 'test_regrtest_noop51', '--junit-xml', '@test_12395_tmpæ'] failed with exit code 1, but exit code 2 expected!
stdout:
---
Using random seed: 777580575
0:00:00 load avg: 26.11 Run 1 test sequentially in a single process
0:00:00 load avg: 26.11 [1/1] test_regrtest_noop51
test test_regrtest_noop51 failed -- Traceback (most recent call last):
File "/tmp/test_python_3mwd8cdm/tmpsfkk6fdz/test_regrtest_noop51.py", line 8, in test_failed
self.fail()
~~~~~~~~~^^
AssertionError: None
Stdout:
abc ef
Stdout:
abc ef
Modules/expat/xmlparse.c:3162:9: runtime error: call to function expat_start_handler through pointer to incorrect function type 'void (*)(void *, const char *, const char **)'
/$HOME/lib/python/cpython/./Modules/_elementtree.c:3259: note: expat_start_handler defined here
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior Modules/expat/xmlparse.c:3162:9
---
0:01:46 load avg: 16.11 running (1): test_socket (1 min 5 sec)
^C
```
</details>
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
Linux
<!-- gh-linked-prs -->
### Linked PRs
* gh-131605
* gh-131665
* gh-132265
* gh-132398
* gh-132406
<!-- /gh-linked-prs -->
| 50e518e886e6dde5542a2372d5b04acbdda4fc7d | ea23c897cd25702e72a04e06664f6864f07a7c5d |
python/cpython | python__cpython-132076 | # Possible use of unitialized socked address
# Bug report
New Bluetooth tests added in #132023 fail on Fedora based platforms. It looks that the `hci_channel` member of the `sockaddr_hci` structure is not initialized. This may be a cause of the failure.
On NetBSD and DragonFly `sockaddr_hci` is an alias of `sockaddr_bt` which contain other fields. This also may be an issue.
If `sockaddr_hci` contains additional optional members, not initializing them with zeros also may cause troubles.
It is safer to always initialize `sockaddr_hci` and all other `sockaddr_*` structures with zeroes.
<!-- gh-linked-prs -->
### Linked PRs
* gh-132076
* gh-132086
* gh-132087
<!-- /gh-linked-prs -->
| 345baa77ba2ce3b8ea8f2fad84754e5cc0b10938 | 255eb375a7cc3cb16698bebf42689e8bc783ed93 |
python/cpython | python__cpython-132195 | # `singledispatch.register` fails for `lru_cache` decorated functions
# Bug report
Function decorated with both `@singledispatch.register` and `@lru_chache` fails with a cryptic error message.
EDIT: In python 3.14a6. It works in python 3.9~3.13.
### Bug description:
```python
import sys
from functools import lru_cache, singledispatch, wraps
from typing import Any, Callable
def wrapped_lru_cache[T: Callable](maxsize: int = 1024) -> Callable[[T], T]:
def decorator(func: T) -> T:
@wraps(func)
def wrapper(*args: Any, **kwargs: Any) -> Any:
return lru_cache(maxsize=maxsize)(func)(*args, **kwargs)
return wrapper # type: ignore
return decorator
if len(sys.argv) > 1 and sys.argv[1] == "--broken-in-py314":
# does not work in python 3.14+
lru = lru_cache
else:
# workaround
lru = wrapped_lru_cache
@singledispatch
def fun(x: str | tuple) -> int:
raise TypeError(f"Input must be str or tuple not a {type(x)}")
@fun.register
@lru(maxsize=1024) # <- this
def _(x: str) -> int:
return len(x)
@fun.register
def _(x: tuple) -> int:
sum = 0
for e in x:
sum += fun(e)
return sum
if __name__ == "__main__":
print(f"{fun("hello")=}")
print(f"{fun(("hello", "sailor"))=}")
```
`python ./singledispatch_mwe.py`, but `python ./singledispatch_mwe.py --broken-in-py314` produces the following error:
```
Traceback (most recent call last):
File ".../singledispatch_mwe.py", line 25, in <module>
@fun.register
^^^^^^^^^^^^
File "~/.local/share/uv/python/cpython-3.14.0a6-macos-aarch64-none/lib/python3.14/functools.py", line 963, in register
argname, cls = next(iter(get_type_hints(func, format=Format.FORWARDREF).items()))
```
In python 3.9~3.13 both of the above work.
### CPython versions tested on:
3.9~3.14
### Operating systems tested on:
macOS
<!-- gh-linked-prs -->
### Linked PRs
* gh-132195
<!-- /gh-linked-prs -->
| 4d3ad0467e5cb145b1f4bde4be5eb776946a4269 | a1cd4ca7f46eafe61dc7f26692896a4a95c7e947 |
python/cpython | python__cpython-132129 | # ProcessPoolExecutor swallows falsy Exceptions
# Bug report
### Bug description:
```python
import sys
import concurrent.futures
class MyException(Exception):
def __bool__(self):
return False
def raiser():
raise MyException("foo")
def main():
with concurrent.futures.ProcessPoolExecutor() as p:
print(p.submit(raiser).result())
if __name__ == "__main__":
sys.exit(main())
```
This program prints `None`, but should fail and print a traceback
### CPython versions tested on:
CPython main branch, 3.14, 3.13, 3.12, 3.11, 3.10, 3.9
### Operating systems tested on:
Linux
<!-- gh-linked-prs -->
### Linked PRs
* gh-132129
* gh-132275
<!-- /gh-linked-prs -->
| 933c6653cba235b3af2250bb19713694b560c367 | c5e856a5dc8eed4813ecb8fbf4120411af9a6130 |
python/cpython | python__cpython-132056 | # Add `application/yaml` to `mimetypes`
### 1. Summary
It would be nice if Python will associate popular configuration extensions `.yaml` and `.yml` with the `application/yaml` media type.
### 2. Behavior
#### 2.1. Current
```python
>>> import mimetypes
>>> mimetypes.guess_file_type("KiraGoddess.yaml")
(None, None)
>>> mimetypes.guess_file_type("KiraGoddess.yml")
(None, None)
```
#### 2.2. Desired
```python
>>> import mimetypes
>>> mimetypes.guess_file_type("KiraGoddess.yaml")
('application/yaml', None)
>>> mimetypes.guess_file_type("KiraGoddess.yml")
('application/yaml', None)
```
### 3. Specifications
Comments in the `mimetypes` Python module:
<https://github.com/python/cpython/blob/ef172521a9e9dfadebe57d590bfb53a0e9ac3a0b/Lib/mimetypes.py#L447-L449>
[**RFC 9512 Abstract**](https://www.rfc-editor.org/rfc/rfc9512.html#abstract):
> This document registers the `application/yaml` media type and the `+yaml` structured syntax suffix with IANA.
[**RFC 9512 “Filename Extension” section**](https://www.rfc-editor.org/rfc/rfc9512.html#name-filename-extension):
> The "yaml" filename extension is the preferred one; it is the most popular and widely used on the web. The "yml" filename extension is still used. The simultaneous usage of two filename extensions in the same context might cause interoperability issues (e.g., when both a "config.yaml" and a "config.yml" are present).
[**IANA specification for `application/yaml`**](https://www.iana.org/assignments/media-types/application/yaml).
### 4. Has this already been discussed elsewhere?
Issue authors in this issue tracker write:
> This is a minor feature, which does not need previous discussion elsewhere
Thanks.
<!-- gh-linked-prs -->
### Linked PRs
* gh-132056
<!-- /gh-linked-prs -->
| 132b6bc98f47a4d897dead8635b5a50a0baee485 | fee808936fd04e850a62c9610498bbb2360efd31 |
python/cpython | python__cpython-132039 | # test_perf_profiler test failure if installed perf version string contains commit hash
# Bug report
### Bug description:
In some installations, the installed `perf` version string may contain a commit hash, for example:
```sh
>perf --version
perf version 6.12.9.g242e6068fd5c
```
this causes the `test_perf_profiler` to fail with:
```
ValueError: invalid literal for int() with base 10: 'g242e6068fd5c'
```
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
Linux
<!-- gh-linked-prs -->
### Linked PRs
* gh-132039
* gh-132058
<!-- /gh-linked-prs -->
| b6c92ec419cfa1e4483b072996bab403c9970a5d | 5518c2ae09cd8f135981f362dabd000d44d26cac |
python/cpython | python__cpython-132027 | # _MIPS_SIM comparison may contain undefined identifiers for _ABI
# Bug report
### Bug description:
```c
#include <Python.h>
```
When built on a MIPS architecture, `_MIPS_SIM` is used to determine [architecture specifics](https://wiki.debian.org/ArchitectureSpecificsMemo#Summary). The value is expected to match either `_ABIO32`, `_ABIN32` or `_ABI64`.
In `gcc` [config/mips/mips.h](https://gcc.gnu.org/git/?p=gcc.git;a=blob;f=gcc/config/mips/mips.h;h=616a275b918c34caf87f333f40e00866504156d7;hb=04696df09633baf97cdbbdd6e9929b9d472161d3#l560) these values are defined as compiler `builtin_define` inside of a switch/case. That means, mips64el and mips64 architectures know about `_ABI64` but don't know about `_ABIO32` and `_ABIN32`. In turn, when CPython tries to use them in comparison, they may be undefined identifiers.
In default compiler behavior, the undefined identifier will be evaluated as zero, and it will not match `_MIPS_SIM`. However, the issues pop up when `-Wundef` (or, even worse, `-Werror=undef`) compiler flag is enabled. Then suddenly it's visible as a warning or error:
```text
In file included from /usr/include/python3.13/Python.h:14,
from example.c:1:
/usr/include/python3.13/pyconfig.h:59:20: error: "_ABIO32" is not defined, evaluates to 0 [-Werror=undef]
59 | # if _MIPS_SIM == _ABIO32
| ^~~~~~~
/usr/include/python3.13/pyconfig.h:61:22: error: "_ABIN32" is not defined, evaluates to 0 [-Werror=undef]
61 | # elif _MIPS_SIM == _ABIN32
| ^~~~~~~
```
### CPython versions tested on:
3.13
### Operating systems tested on:
Linux
<!-- gh-linked-prs -->
### Linked PRs
* gh-132027
* gh-133092
<!-- /gh-linked-prs -->
| 6985e2e6dea67630cf13fc02b7ca727af383207b | 20be6ba61ac8a0a5d6242701c4186579cfa653f0 |
python/cpython | python__cpython-132048 | # Inconsistency in json.JSONEncoder Description Regarding skipkeys Behavior
> If skipkeys is false (the default), a [TypeError](https://docs.python.org/3.13/library/exceptions.html#TypeError) will be raised when trying to encode keys that are not [str](https://docs.python.org/3.13/library/stdtypes.html#str), [int](https://docs.python.org/3.13/library/functions.html#int), [float](https://docs.python.org/3.13/library/functions.html#float) or None. If skipkeys is true, such items are simply skipped.
However, boolean values (True and False) can be used as dictionary keys without raising a TypeError. I think this is a mistake.
```python
json.JSONEncoder(skipkeys=False).encode({True:1})
```
<!-- gh-linked-prs -->
### Linked PRs
* gh-132048
* gh-132255
* gh-132256
<!-- /gh-linked-prs -->
| 403886c28ddb350bbcaea478f8d754ed14e10337 | f7305a06c7a322d23b39ad9d16af814d467624c6 |
python/cpython | python__cpython-132918 | # Error traceback when interrupting+terminating python
# Bug report
### Bug description:
How to reproduce:
- start python3
- interrupt with ^Z
- resume with `fg`
- immediately press ^D (EOF)
```python
$ python3
>>> ^Z
Stopped
$ fg
^D
Traceback (most recent call last):
File "<frozen runpy>", line 198, in _run_module_as_main
File "<frozen runpy>", line 88, in _run_code
File "/usr/lib/python3.13/_pyrepl/__main__.py", line 6, in <module>
__pyrepl_interactive_console()
~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
File "/usr/lib/python3.13/_pyrepl/main.py", line 59, in interactive_console
run_multiline_interactive_console(console)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^
File "/usr/lib/python3.13/_pyrepl/simple_interact.py", line 142, in run_multiline_interactive_console
statement = multiline_input(more_lines, ps1, ps2)
File "/usr/lib/python3.13/_pyrepl/readline.py", line 389, in multiline_input
return reader.readline()
~~~~~~~~~~~~~~~^^
File "/usr/lib/python3.13/_pyrepl/reader.py", line 803, in readline
self.handle1()
~~~~~~~~~~~~^^
File "/usr/lib/python3.13/_pyrepl/reader.py", line 759, in handle1
event = self.console.get_event(block=False)
File "/usr/lib/python3.13/_pyrepl/unix_console.py", line 406, in get_event
self.push_char(self.__read(1))
~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^
File "/usr/lib/python3.13/_pyrepl/unix_console.py", line 388, in push_char
self.event_queue.push(char)
~~~~~~~~~~~~~~~~~~~~~^^^^^^
File "/usr/lib/python3.13/_pyrepl/unix_eventqueue.py", line 120, in push
ord_char = char if isinstance(char, int) else ord(char)
~~~^^^^^^
TypeError: ord() expected a character, but string of length 0 found
$
```
Also + likely related: resuming Python doesn't restore the `>>>` prompt (nor command-line editing) until I press Enter, presumably due to the interactive interpreter not listening to SIGCONT.
### CPython versions tested on:
3.13
### Operating systems tested on:
Linux
<!-- gh-linked-prs -->
### Linked PRs
* gh-132918
* gh-133470
<!-- /gh-linked-prs -->
| e4561da886717ddd01ab0970452a14a1531e874d | d48616e08cbf069847026a2ee35017ad5cbe12a8 |
python/cpython | python__cpython-132014 | # TSAN race in frozenset_hash
# Bug report
### Bug description:
Frozenset's hash has code to cache the hash computation that is not thread-safe under free-threading:
https://github.com/python/cpython/blob/b0f77c4d250789fd1deaab4912919e2e6b89e583/Objects/setobject.c#L796
TSAN report from JAX test suite under Python 3.14:
```
WARNING: ThreadSanitizer: data race (pid=145260)
Read of size 8 at 0x7fffb70ee4a0 by thread T6 (mutexes: read M0):
#0 frozenset_hash /__w/jax/jax/cpython/Objects/setobject.c:796:13 (python3.14+0x2e1d93) (BuildId: 36ce1663ba151019a0cc812ec2af69c6b980a390)
#1 PyObject_Hash /__w/jax/jax/cpython/Objects/object.c (python3.14+0x2a6876) (BuildId: 36ce1663ba151019a0cc812ec2af69c6b980a390)
#2 tuple_hash /__w/jax/jax/cpython/Objects/tupleobject.c:321:27 (python3.14+0x2f34bf) (BuildId: 36ce1663ba151019a0cc812ec2af69c6b980a390)
#3 PyObject_Hash /__w/jax/jax/cpython/Objects/object.c (python3.14+0x2a6876) (BuildId: 36ce1663ba151019a0cc812ec2af69c6b980a390)
#4 builtin_hash /__w/jax/jax/cpython/Python/bltinmodule.c:1736:9 (python3.14+0x3f0915) (BuildId: 36ce1663ba151019a0cc812ec2af69c6b980a390)
...
Previous write of size 8 at 0x7fffb70ee4a0 by thread T1 (mutexes: read M0):
#0 frozenset_hash /__w/jax/jax/cpython/Objects/setobject.c:801:14 (python3.14+0x2e1ec3) (BuildId: 36ce1663ba151019a0cc812ec2af69c6b980a390)
#1 PyObject_Hash /__w/jax/jax/cpython/Objects/object.c (python3.14+0x2a6876) (BuildId: 36ce1663ba151019a0cc812ec2af69c6b980a390)
#2 tuple_hash /__w/jax/jax/cpython/Objects/tupleobject.c:321:27 (python3.14+0x2f34bf) (BuildId: 36ce1663ba151019a0cc812ec2af69c6b980a390)
#3 PyObject_Hash /__w/jax/jax/cpython/Objects/object.c (python3.14+0x2a6876) (BuildId: 36ce1663ba151019a0cc812ec2af69c6b980a390)
#4 builtin_hash /__w/jax/jax/cpython/Python/bltinmodule.c:1736:9 (python3.14+0x3f0915) (BuildId: 36ce1663ba151019a0cc812ec2af69c6b980a390)
...
```
### CPython versions tested on:
3.14
### Operating systems tested on:
Linux
<!-- gh-linked-prs -->
### Linked PRs
* gh-132014
<!-- /gh-linked-prs -->
| 76f6b5e64a8b6ea5a88606f3665cd9f52c2c2798 | b0f77c4d250789fd1deaab4912919e2e6b89e583 |
python/cpython | python__cpython-132018 | # Failed assertion in `_PyEval_EvalFrameDefault`: `self_o != NULL`
# Crash report
### What happened?
It's possible to make the interpreter exit with a failed assertion by running the following code:
```python
import difflib
obj = difflib.HtmlDiff(None, None, None, None,)
try:
for x in range(3):
obj._split_line([], None, None)
except:
pass
obj._split_line(list, None, None)
```
Backtrace:
```gdb
python: Python/generated_cases.c.h:3345: _PyEval_EvalFrameDefault: Assertion `self_o != NULL' failed.
Program received signal SIGABRT, Aborted.
__pthread_kill_implementation (no_tid=0, signo=6, threadid=140737350580032) at ./nptl/pthread_kill.c:44
44 ./nptl/pthread_kill.c: No such file or directory.
(gdb) bt
#0 __pthread_kill_implementation (no_tid=0, signo=6, threadid=140737350580032) at ./nptl/pthread_kill.c:44
#1 __pthread_kill_internal (signo=6, threadid=140737350580032) at ./nptl/pthread_kill.c:78
#2 __GI___pthread_kill (threadid=140737350580032, signo=signo@entry=6) at ./nptl/pthread_kill.c:89
#3 0x00007ffff7ce0476 in __GI_raise (sig=sig@entry=6) at ../sysdeps/posix/raise.c:26
#4 0x00007ffff7cc67f3 in __GI_abort () at ./stdlib/abort.c:79
#5 0x00007ffff7cc671b in __assert_fail_base (fmt=0x7ffff7e7b130 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n",
assertion=0x555555a43bc6 "self_o != NULL", file=0x555555a43993 "Python/generated_cases.c.h", line=3345,
function=<optimized out>) at ./assert/assert.c:94
#6 0x00007ffff7cd7e96 in __GI___assert_fail (assertion=assertion@entry=0x555555a43bc6 "self_o != NULL",
file=file@entry=0x555555a43993 "Python/generated_cases.c.h", line=line@entry=3345,
function=function@entry=0x555555a44980 <__PRETTY_FUNCTION__.81> "_PyEval_EvalFrameDefault") at ./assert/assert.c:103
#7 0x0000555555837189 in _PyEval_EvalFrameDefault (tstate=tstate@entry=0x555555c6b558 <_PyRuntime+330424>, frame=0x7ffff7fb00a0,
frame@entry=0x7ffff7fb0020, throwflag=throwflag@entry=0) at Python/generated_cases.c.h:3345
#8 0x000055555585db58 in _PyEval_EvalFrame (throwflag=0, frame=0x7ffff7fb0020, tstate=0x555555c6b558 <_PyRuntime+330424>)
at ./Include/internal/pycore_ceval.h:119
#9 _PyEval_Vector (tstate=tstate@entry=0x555555c6b558 <_PyRuntime+330424>, func=func@entry=0x7ffff7a8db50,
locals=locals@entry={'__name__': '__main__', '__doc__': None, '__package__': None, '__loader__': <SourceFileLoader(name='__main__', path='/home/fusil/runs/python-12/difflib-abort-assertion/source2.py') at remote 0x7ffff7a95b90>, '__spec__': None, '__builtins__': <module at remote 0x7ffff7befef0>, '__file__': '/home/fusil/runs/python-12/difflib-abort-assertion/source2.py', '__cached__': None, 'difflib': <module at remote 0x7ffff7acc110>, 'obj': <HtmlDiff(_charjunk=None, _linejunk=None, _tabsize=None, _wrapcolumn=None) at remote 0x7ffff7a7be40>, 'x': 2}, args=args@entry=0x0, argcount=argcount@entry=0, kwnames=kwnames@entry=0x0) at Python/ceval.c:1908
#10 0x000055555585dc57 in PyEval_EvalCode (co=co@entry=<code at remote 0x7ffff7bce400>,
globals=globals@entry={'__name__': '__main__', '__doc__': None, '__package__': None, '__loader__': <SourceFileLoader(name='__main__', path='/home/fusil/runs/python-12/difflib-abort-assertion/source2.py') at remote 0x7ffff7a95b90>, '__spec__': None, '__builtins__': <module at remote 0x7ffff7befef0>, '__file__': '/home/fusil/runs/python-12/difflib-abort-assertion/source2.py', '__cached__': None, 'difflib': <module at remote 0x7ffff7acc110>, 'obj': <HtmlDiff(_charjunk=None, _linejunk=None, _tabsize=None, _wrapcolumn=None) at remote 0x7ffff7a7be40>, 'x': 2},
locals=locals@entry={'__name__': '__main__', '__doc__': None, '__package__': None, '__loader__': <SourceFileLoader(name='__main__', path='/home/fusil/runs/python-12/difflib-abort-assertion/source2.py') at remote 0x7ffff7a95b90>, '__spec__': None, '__builtins__': <module at remote 0x7ffff7befef0>, '__file__': '/home/fusil/runs/python-12/difflib-abort-assertion/source2.py', '__cached__': None, 'difflib': <module at remote 0x7ffff7acc110>, 'obj': <HtmlDiff(_charjunk=None, _linejunk=None, _tabsize=None, _wrapcolumn=None) at remote 0x7ffff7a7be40>, 'x': 2}) at Python/ceval.c:836
#11 0x00005555558eb82e in run_eval_code_obj (tstate=tstate@entry=0x555555c6b558 <_PyRuntime+330424>, co=co@entry=0x7ffff7bce400,
globals=globals@entry={'__name__': '__main__', '__doc__': None, '__package__': None, '__loader__': <SourceFileLoader(name='__main__', path='/home/fusil/runs/python-12/difflib-abort-assertion/source2.py') at remote 0x7ffff7a95b90>, '__spec__': None, '__builtins__': <module at remote 0x7ffff7befef0>, '__file__': '/home/fusil/runs/python-12/difflib-abort-assertion/source2.py', '__cached__': None, 'difflib': <module at remote 0x7ffff7acc110>, 'obj': <HtmlDiff(_charjunk=None, _linejunk=None, _tabsize=None, _wrapcolumn=None) at remote 0x7ffff7a7be40>, 'x': 2},
locals=locals@entry={'__name__': '__main__', '__doc__': None, '__package__': None, '__loader__': <SourceFileLoader(name='__main__', path='/home/fusil/runs/python-12/difflib-abort-assertion/source2.py') at remote 0x7ffff7a95b90>, '__spec__': None, '__builtins__': <module at remote 0x7ffff7befef0>, '__file__': '/home/fusil/runs/python-12/difflib-abort-assertion/source2.py', '__cached__': None, 'difflib': <module at remote 0x7ffff7acc110>, 'obj': <HtmlDiff(_charjunk=None, _linejunk=None, _tabsize=None, _wrapcolumn=None) at remote 0x7ffff7a7be40>, 'x': 2}) at Python/pythonrun.c:1365
```
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
Linux
### Output from running 'python -VV' on the command line:
Python 3.14.0a6+ (heads/main:3a8cefba0b6, Apr 1 2025, 21:31:55) [GCC 11.4.0]
<!-- gh-linked-prs -->
### Linked PRs
* gh-132018
* gh-132161
<!-- /gh-linked-prs -->
| c0661df42ad20e488dbfa3e0fec22462833fc3d6 | 42e3a8410b7dbc960b3b7c335f2bbb516c8caf6e |
python/cpython | python__cpython-132003 | # Segfault deallocating a `ContextVar` built with `str` subclass
# Crash report
### What happened?
Creating a `ContextVar` with an instance of a subclass of `str` leads to a segfault during its deallocation:
```python
from _contextvars import ContextVar
class weird_str(str):
def __eq__(self, other):
pass
ContextVar(weird_str())
```
Backtrace:
```gdb
Program received signal SIGSEGV, Segmentation fault.
contextvar_tp_clear (op=op@entry=<_contextvars.ContextVar at remote 0x7ffff7ac7150>) at Python/context.c:935
935 Py_CLEAR(self->var_name);
(gdb) bt
#0 contextvar_tp_clear (op=op@entry=<_contextvars.ContextVar at remote 0x7ffff7ac7150>) at Python/context.c:935
#1 0x000055555587e395 in contextvar_tp_dealloc (self=<_contextvars.ContextVar at remote 0x7ffff7ac7150>) at Python/context.c:958
#2 0x00005555556ffa08 in _Py_Dealloc (op=op@entry=<_contextvars.ContextVar at remote 0x7ffff7ac7150>) at Objects/object.c:3021
#3 0x000055555587e672 in Py_DECREF (op=<_contextvars.ContextVar at remote 0x7ffff7ac7150>, lineno=883,
filename=0x555555a49efe "Python/context.c") at ./Include/refcount.h:416
#4 contextvar_new (name=<weird_str() at remote 0x7ffff7bc7260>, def=0x0) at Python/context.c:883
#5 0x000055555587e6fe in contextvar_tp_new (type=<optimized out>, args=<optimized out>, kwds=<optimized out>)
at Python/context.c:928
#6 0x000055555574692f in type_call (self=<type at remote 0x555555bff380>, args=(<weird_str() at remote 0x7ffff7bc7260>,), kwds=0x0)
at Objects/typeobject.c:2244
#7 0x000055555567b9a7 in _PyObject_MakeTpCall (tstate=tstate@entry=0x555555c69558 <_PyRuntime+330424>,
callable=callable@entry=<type at remote 0x555555bff380>, args=args@entry=0x7fffffffd7c8, nargs=<optimized out>,
keywords=keywords@entry=0x0) at Objects/call.c:242
#8 0x000055555567bdc8 in _PyObject_VectorcallTstate (tstate=0x555555c69558 <_PyRuntime+330424>,
callable=<type at remote 0x555555bff380>, args=0x7fffffffd7c8, nargsf=<optimized out>, kwnames=0x0)
at ./Include/internal/pycore_call.h:167
#9 0x000055555567bdf4 in PyObject_Vectorcall (callable=callable@entry=<type at remote 0x555555bff380>,
args=args@entry=0x7fffffffd7c8, nargsf=<optimized out>, kwnames=kwnames@entry=0x0) at Objects/call.c:327
#10 0x000055555582f4c0 in _PyEval_EvalFrameDefault (tstate=tstate@entry=0x555555c69558 <_PyRuntime+330424>,
frame=frame@entry=0x7ffff7fb0020, throwflag=throwflag@entry=0) at Python/generated_cases.c.h:1366
#11 0x000055555585cd69 in _PyEval_EvalFrame (throwflag=0, frame=0x7ffff7fb0020, tstate=0x555555c69558 <_PyRuntime+330424>)
at ./Include/internal/pycore_ceval.h:119
```
Found using [fusil](https://github.com/devdanzin/fusil) by @vstinner.
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
Linux, Windows
### Output from running 'python -VV' on the command line:
Python 3.14.0a6+ (heads/main:be2d2181e62, Mar 31 2025, 07:30:17) [GCC 11.4.0]
<!-- gh-linked-prs -->
### Linked PRs
* gh-132003
* gh-132007
* gh-132008
<!-- /gh-linked-prs -->
| ab2a3dda1d3b6668162a847bf5b6aca2855a3416 | 87d9983994e9a423e9e0050b1bbee52ebaf84367 |
python/cpython | python__cpython-132000 | # The interpreter crashes when specializing bound method calls on unbound objects
# Crash report
### What happened?
The following code segfaults the interpreter:
```python
import glob
for x in range(3):
str_globber = glob._StringGlobber(None, None)
str_globber.selector(set())
try:
str_globber.selector([True, True, False])
except:
pass
globber_base = glob._GlobberBase(0, 0, 0, 0)
globber_base.selector(list)
```
(Edited by @ZeroIntensity) Smaller reproducer:
```py
def call(part):
part.pop()
call(['a'])
try:
call(list)
except TypeError:
raise
```
Backtrace:
```gdb
Program received signal SIGSEGV, Segmentation fault.
_PyEval_EvalFrameDefault (tstate=tstate@entry=0x555555c6b558 <_PyRuntime+330424>, frame=0x7ffff7fb00a0, frame@entry=0x7ffff7fb0020, throwflag=throwflag@entry=0) at ./Include/object.h:270
270 return ob->ob_type;
(gdb) bt
#0 _PyEval_EvalFrameDefault (tstate=tstate@entry=0x555555c6b558 <_PyRuntime+330424>, frame=0x7ffff7fb00a0,
frame@entry=0x7ffff7fb0020, throwflag=throwflag@entry=0) at ./Include/object.h:270
#1 0x000055555585db58 in _PyEval_EvalFrame (throwflag=0, frame=0x7ffff7fb0020, tstate=0x555555c6b558 <_PyRuntime+330424>)
at ./Include/internal/pycore_ceval.h:119
#2 _PyEval_Vector (tstate=tstate@entry=0x555555c6b558 <_PyRuntime+330424>, func=func@entry=0x7ffff7a91b50,
locals=locals@entry={'__name__': '__main__', '__doc__': None, '__package__': None, '__loader__': <SourceFileLoader(name='__main__', path='/home/fusil/runs/python-12/glob-cpu_load-invalid_mem_access-0x0000000000000008/source2.py') at remote 0x7ffff7a95b90>, '__spec__': None, '__builtins__': <module at remote 0x7ffff7befef0>, '__file__': '/home/fusil/runs/python-12/glob-cpu_load-invalid_mem_access-0x0000000000000008/source2.py', '__cached__': None, 'glob': <module at remote 0x7ffff7ad0170>, 'x': 2, 'str_globber': <_StringGlobber(sep=None, case_sensitive=None, case_pedantic=False, recursive=False) at remote 0x7ffff78ef630>, 'globber_base': <_GlobberBase(case_pedantic=0, case_sensitive=0, recursive=0, sep=0) at remote 0x7ffff7a7e6e0>}, args=args@entry=0x0, argcount=argcount@entry=0,
kwnames=kwnames@entry=0x0) at Python/ceval.c:1908
#3 0x000055555585dc57 in PyEval_EvalCode (co=co@entry=<code at remote 0x7ffff7b5db60>,
globals=globals@entry={'__name__': '__main__', '__doc__': None, '__package__': None, '__loader__': <SourceFileLoader(name='__main__', path='/home/fusil/runs/python-12/glob-cpu_load-invalid_mem_access-0x0000000000000008/source2.py') at remote 0x7ffff7a95b90>, '__spec__': None, '__builtins__': <module at remote 0x7ffff7befef0>, '__file__': '/home/fusil/runs/python-12/glob-cpu_load-invalid_mem_access-0x0000000000000008/source2.py', '__cached__': None, 'glob': <module at remote 0x7ffff7ad0170>, 'x': 2, 'str_globber': <_StringGlobber(sep=None, case_sensitive=None, case_pedantic=False, recursive=False) at remote 0x7ffff78ef630>, 'globber_base': <_GlobberBase(case_pedantic=0, case_sensitive=0, recursive=0, sep=0) at remote 0x7ffff7a7e6e0>},
locals=locals@entry={'__name__': '__main__', '__doc__': None, '__package__': None, '__loader__': <SourceFileLoader(name='__main__', path='/home/fusil/runs/python-12/glob-cpu_load-invalid_mem_access-0x0000000000000008/source2.py') at remote 0x7ffff7a95b90>, '__spec__': None, '__builtins__': <module at remote 0x7ffff7befef0>, '__file__': '/home/fusil/runs/python-12/glob-cpu_load-invalid_mem_access-0x0000000000000008/source2.py', '__cached__': None, 'glob': <module at remote 0x7ffff7ad0170>, 'x': 2, 'str_globber': <_StringGlobber(sep=None, case_sensitive=None, case_pedantic=False, recursive=False) at remote 0x7ffff78ef630>, 'globber_base': <_GlobberBase(case_pedantic=0, case_sensitive=0, recursive=0, sep=0) at remote 0x7ffff7a7e6e0>}) at Python/ceval.c:836
#4 0x00005555558eb82e in run_eval_code_obj (tstate=tstate@entry=0x555555c6b558 <_PyRuntime+330424>, co=co@entry=0x7ffff7b5db60,
globals=globals@entry={'__name__': '__main__', '__doc__': None, '__package__': None, '__loader__': <SourceFileLoader(name='__main__', path='/home/fusil/runs/python-12/glob-cpu_load-invalid_mem_access-0x0000000000000008/source2.py') at remote 0x7ffff7a95b90>, '__spec__': None, '__builtins__': <module at remote 0x7ffff7befef0>, '__file__': '/home/fusil/runs/python-12/glob-cpu_load-invalid_mem_access-0x0000000000000008/source2.py', '__cached__': None, 'glob': <module at remote 0x7ffff7ad0170>, 'x': 2, 'str_globber': <_StringGlobber(sep=None, case_sensitive=None, case_pedantic=False, recursive=False) at remote 0x7ffff78ef630>, 'globber_base': <_GlobberBase(case_pedantic=0, case_sensitive=0, recursive=0, sep=0) at remote 0x7ffff7a7e6e0>},
locals=locals@entry={'__name__': '__main__', '__doc__': None, '__package__': None, '__loader__': <SourceFileLoader(name='__main__', path='/home/fusil/runs/python-12/glob-cpu_load-invalid_mem_access-0x0000000000000008/source2.py') at remote 0x7ffff7a95b90>, '__spec__': None, '__builtins__': <module at remote 0x7ffff7befef0>, '__file__': '/home/fusil/runs/python-12/glob-cpu_load-invalid_mem_access-0x0000000000000008/source2.py', '__cached__': None, 'glob': <module at remote 0x7ffff7ad0170>, 'x': 2, 'str_globber': <_StringGlobber(sep=None, case_sensitive=None, case_pedantic=False, recursive=False) at remote 0x7ffff78ef630>, 'globber_base': <_GlobberBase(case_pedantic=0, case_sensitive=0, recursive=0, sep=0) at remote 0x7ffff7a7e6e0>}) at Python/pythonrun.c:1365
#5 0x00005555558ec92e in run_mod (mod=mod@entry=0x555555e0e230, filename=filename@entry='/home/fusil/runs/python-12/glob-cpu_load-invalid_mem_access-0x0000000000000008/source2.py', globals=globals@entry={'__name__': '__main__', '__doc__': None, '__package__': None, '__loader__': <SourceFileLoader(name='__main__', path='/home/fusil/runs/python-12/glob-cpu_load-invalid_mem_access-0x0000000000000008/source2.py') at remote 0x7ffff7a95b90>, '__spec__': None, '__builtins__': <module at remote 0x7ffff7befef0>, '__file__': '/home/fusil/runs/python-12/glob-cpu_load-invalid_mem_access-0x0000000000000008/source2.py', '__cached__': None, 'glob': <module at remote 0x7ffff7ad0170>, 'x': 2, 'str_globber': <_StringGlobber(sep=None, case_sensitive=None, case_pedantic=False, recursive=False) at remote 0x7ffff78ef630>, 'globber_base': <_GlobberBase(case_pedantic=0, case_sensitive=0, recursive=0, sep=0) at remote 0x7ffff7a7e6e0>}, locals=locals@entry={'__name__': '__main__', '__doc__': None, '__package__': None, '__loader__': <SourceFileLoader(name='__main__', path='/home/fusil/runs/python-12/glob-cpu_load-invalid_mem_access-0x0000000000000008/source2.py') at remote 0x7ffff7a95b90>, '__spec__': None, '__builtins__': <module at remote 0x7ffff7befef0>, '__file__': '/home/fusil/runs/python-12/glob-cpu_load-invalid_mem_access-0x0000000000000008/source2.py', '__cached__': None, 'glob': <module at remote 0x7ffff7ad0170>, 'x': 2, 'str_globber': <_StringGlobber(sep=None, case_sensitive=None, case_pedantic=False, recursive=False) at remote 0x7ffff78ef630>, 'globber_base': <_GlobberBase(case_pedantic=0, case_sensitive=0, recursive=0, sep=0) at remote 0x7ffff7a7e6e0>}, flags=flags@entry=0x7fffffffdb68, arena=arena@entry=0x7ffff7ab3f40, interactive_src=0x0, generate_new_source=0) at Python/pythonrun.c:1436
#6 0x00005555558eccdb in pyrun_file (fp=fp@entry=0x555555df2410, filename=filename@entry='/home/fusil/runs/python-12/glob-cpu_load-invalid_mem_access-0x0000000000000008/source2.py', start=start@entry=257, globals=globals@entry={'__name__': '__main__', '__doc__': None, '__package__': None, '__loader__': <SourceFileLoader(name='__main__', path='/home/fusil/runs/python-12/glob-cpu_load-invalid_mem_access-0x0000000000000008/source2.py') at remote 0x7ffff7a95b90>, '__spec__': None, '__builtins__': <module at remote 0x7ffff7befef0>, '__file__': '/home/fusil/runs/python-12/glob-cpu_load-invalid_mem_access-0x0000000000000008/source2.py', '__cached__': None, 'glob': <module at remote 0x7ffff7ad0170>, 'x': 2, 'str_globber': <_StringGlobber(sep=None, case_sensitive=None, case_pedantic=False, recursive=False) at remote 0x7ffff78ef630>, 'globber_base': <_GlobberBase(case_pedantic=0, case_sensitive=0, recursive=0, sep=0) at remote 0x7ffff7a7e6e0>}, locals=locals@entry={'__name__': '__main__', '__doc__': None, '__package__': None, '__loader__': <SourceFileLoader(name='__main__', path='/home/fusil/runs/python-12/glob-cpu_load-invalid_mem_access-0x0000000000000008/source2.py') at remote 0x7ffff7a95b90>, '__spec__': None, '__builtins__': <module at remote 0x7ffff7befef0>, '__file__': '/home/fusil/runs/python-12/glob-cpu_load-invalid_mem_access-0x0000000000000008/source2.py', '__cached__': None, 'glob': <module at remote 0x7ffff7ad0170>, 'x': 2, 'str_globber': <_StringGlobber(sep=None, case_sensitive=None, case_pedantic=False, recursive=False) at remote 0x7ffff78ef630>, 'globber_base': <_GlobberBase(case_pedantic=0, case_sensitive=0, recursive=0, sep=0) at remote 0x7ffff7a7e6e0>}, closeit=closeit@entry=1, flags=0x7fffffffdb68) at Python/pythonrun.c:1293
#7 0x00005555558eeff1 in _PyRun_SimpleFileObject (fp=fp@entry=0x555555df2410, filename=filename@entry='/home/fusil/runs/python-12/glob-cpu_load-invalid_mem_access-0x0000000000000008/source2.py', closeit=closeit@entry=1, flags=flags@entry=0x7fffffffdb68) at Python/pythonrun.c:521
#8 0x00005555558ef2ba in _PyRun_AnyFileObject (fp=fp@entry=0x555555df2410, filename=filename@entry='/home/fusil/runs/python-12/glob-cpu_load-invalid_mem_access-0x0000000000000008/source2.py', closeit=closeit@entry=1, flags=flags@entry=0x7fffffffdb68) at Python/pythonrun.c:81
#9 0x000055555591ebd4 in pymain_run_file_obj (program_name=program_name@entry='/home/danzin/projects/cpython/python', filename=filename@entry='/home/fusil/runs/python-12/glob-cpu_load-invalid_mem_access-0x0000000000000008/source2.py', skip_source_first_line=0) at Modules/main.c:396
#10 0x000055555591ef72 in pymain_run_file (config=config@entry=0x555555c36688 <_PyRuntime+113640>) at Modules/main.c:415
#11 0x000055555592050d in pymain_run_python (exitcode=exitcode@entry=0x7fffffffdcf4) at Modules/main.c:680
#12 0x000055555592056e in Py_RunMain () at Modules/main.c:761
#13 0x00005555559205e5 in pymain_main (args=args@entry=0x7fffffffdd50) at Modules/main.c:791
#14 0x00005555559206a8 in Py_BytesMain (argc=<optimized out>, argv=<optimized out>) at Modules/main.c:815
#15 0x00005555555d7926 in main (argc=<optimized out>, argv=<optimized out>) at ./Programs/python.c:15
```
Found using [fusil](https://github.com/devdanzin/fusil) by @vstinner.
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
Linux
### Output from running 'python -VV' on the command line:
Python 3.14.0a6+ (heads/main:3a8cefba0b6, Apr 1 2025, 21:31:55) [GCC 11.4.0]
<!-- gh-linked-prs -->
### Linked PRs
* gh-132000
* gh-132262
<!-- /gh-linked-prs -->
| ac3c439cdfee8452f2bcceacd67a1f4e423ac3cf | 3eda1460359c7e6af4c5b125a63388635a3ed477 |
python/cpython | python__cpython-131991 | # Compilation on Windows fails with assert in generated_cases.c.h
# Bug report
### Bug description:
Command line: `.\PCBuild\build.bat -p x64 -d -r`
```
python.c
python.vcxproj -> D:\Sources\_pythonish\cpython\PCbuild\amd64\python_d.exe
Assertion failed: WITHIN_STACK_BOUNDS(), file D:\Sources\_pythonish\cpython\Python\generated_cases.c.h, line 11092
D:\Sources\_pythonish\cpython\PCbuild\python.vcxproj(134,5): warning MSB3073: The command "setlocal
D:\Sources\_pythonish\cpython\PCbuild\python.vcxproj(134,5): warning MSB3073: set PYTHONPATH=D:\Sources\_pythonish\cpython\Lib
D:\Sources\_pythonish\cpython\PCbuild\python.vcxproj(134,5): warning MSB3073: "D:\Sources\_pythonish\cpython\PCbuild\amd64\python_d.exe" "D:\Sources\_pythonish\cpython\PC\validate_ucrtbase.py" ucrtbased" exited with code 3.
Wrote D:\Sources\_pythonish\cpython\PCbuild\amd64\LICENSE.txt
WinMain.c
pythonw.vcxproj -> D:\Sources\_pythonish\cpython\PCbuild\amd64\pythonw_d.exe
Build succeeded.
D:\Sources\_pythonish\cpython\PCbuild\python.vcxproj(134,5): warning MSB3073: The command "setlocal
D:\Sources\_pythonish\cpython\PCbuild\python.vcxproj(134,5): warning MSB3073: set PYTHONPATH=D:\Sources\_pythonish\cpython\Lib
D:\Sources\_pythonish\cpython\PCbuild\python.vcxproj(134,5): warning MSB3073: "D:\Sources\_pythonish\cpython\PCbuild\amd64\python_d.exe" "D:\Sources\_pythonish\cpython\PC\validate_ucrtbase.py" ucrtbased" exited with code 3.
1 Warning(s)
0 Error(s)
Time Elapsed 00:01:06.65
```
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
Windows
<!-- gh-linked-prs -->
### Linked PRs
* gh-131991
<!-- /gh-linked-prs -->
| cd69d55f64087f74da816eaf20c34ddeabfdb2bb | c2ac662f284b7c3f0701173f2467bf1e18aad2e2 |
python/cpython | python__cpython-131975 | # `ctypes.Pointer.get_contents` doesn't hold the object's lock for long enough
# Bug report
### Bug description:
As @kumaraditya303 [mentioned](https://github.com/python/cpython/pull/128490/files#r2022613718), `ctypes.Pointer.get_contents` has a thread safety bug that I missed when I originally fixed it. https://github.com/python/cpython/blob/3b3720f1a26ab34377542b48eb6a6565f78ff892/Modules/_ctypes/_ctypes.c#L5413-L5430
Dereferencing the pointer is locked, but it's unsafe to call `PyCData_FromBaseObj` without holding the lock, because the pointer might be invalidated concurrently. I suspect this kind of bug exists with other uses of `locked_deref` too.
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
Linux
<!-- gh-linked-prs -->
### Linked PRs
* gh-131975
<!-- /gh-linked-prs -->
| 6e91d1f9aafc6e375092b8c14f6e30ebc74e4004 | 25275bda790e8a689092e83855d6d0574f26061b |
python/cpython | python__cpython-132126 | # Color in json.tool CLI
# Feature or enhancement
### Proposal:
apologies if this is not the right place to ask for enhancement requests. since python3.13 added support for colorization in repl, i was wondering if some basic colorization could be added for the python's cli json tool? jq[0] does this, the keys are bolded and have a different color from the values.
if this gets implemented i think a lot of people will be happy to just use python and not have to install yet another library to fulfill their needs :-)
[0] https://static1.howtogeekimages.com/wordpress/wp-content/uploads/2020/01/5-7.png
### Has this already been discussed elsewhere?
No response given
### Links to previous discussion of this feature:
_No response_
<!-- gh-linked-prs -->
### Linked PRs
* gh-132126
<!-- /gh-linked-prs -->
| 71da68d5887b6c05890757d676b452ede3120617 | e7c5f60efc149dda3d3592fa2001f4583b128512 |
python/cpython | python__cpython-131944 | # Use the Python-specific `Py_DEBUG` macro rather than `_DEBUG` in Windows-related C code
Follow the discussion at https://github.com/python/cpython/pull/131799#discussion_r2021223342.
Currently, the Windows-related C code is mixed using the Python-specific `Py_DEBUG` macro and non-Python-specific `_DEBUG` macro.
The documentation said `_DEBUG` implies `Py_DEBUG`.
> ### [Py_DEBUG](https://docs.python.org/3/c-api/intro.html#c.Py_DEBUG)
>
> Compiling the interpreter with the `Py_DEBUG` macro defined produces what is generally meant by [a debug build of Python](https://docs.python.org/3/using/configure.html#debug-build). Py_DEBUG is enabled in the Unix build by adding [--with-pydebug](https://docs.python.org/3/using/configure.html#cmdoption-with-pydebug) to the `./configure` command. It is also implied by the presence of the not-Python-specific `_DEBUG` macro. When `Py_DEBUG` is enabled in the Unix build, compiler optimization is disabled.
And it is guaranteed by the following code on Windows.
https://github.com/python/cpython/blob/4940d96135a92b90bbc1dcc399f665817f956640/PC/pyconfig.h.in#L379-L381
All platform-non-specific code and Unix-specific code is using the Python-specific `Py_DEBUG` macro. It would be nice to use `Py_DEBUG` in Windows-related C code either. It could improve the code readability and maintainability.
<!-- gh-linked-prs -->
### Linked PRs
* gh-131944
<!-- /gh-linked-prs -->
| f0f93ba5fa53ef5724250dd9f791d89abca04fa7 | e15bbfafbcc9153fa0b05beb806984e288fdefe4 |
python/cpython | python__cpython-131972 | # Update `Element.remove` exception message when an element is not found
### Proposal:
In `xml.etree.ElementTree.Element.remove`, the exception message is `"list.remove(x): x not in list"`. It was suggested to change it to `"Element.remove(x): x not in list"` (https://github.com/python/cpython/pull/126124#discussion_r1941422029).
Since we don't like changing exception messages in stable branches, we will only do it in main. Note that this change may not necessarily be trivial as the Python implementation also needs to be updated (out there, a list is used and using list.remove() would then use a different message).
### Has this already been discussed elsewhere?
This is a minor feature, which does not need previous discussion elsewhere
### Links to previous discussion of this feature:
https://github.com/python/cpython/pull/126124#discussion_r1941422029
<!-- gh-linked-prs -->
### Linked PRs
* gh-131972
<!-- /gh-linked-prs -->
| 04bc681e7cf5b7effd99e676b7deceb27fb34434 | df59226997e067adcfa1bc8d045b7cc1de08906c |
python/cpython | python__cpython-131941 | # 3.14 regression: `Union[int, str] is Union[int, str]` does not hold
# Bug report
### Bug description:
### Python 3.13.2
```pycon
>>> from typing import Union
>>> Union[int, str] is Union[int, str]
True
```
### Python 3.14.0a6
```pycon
>>> from typing import Union
>>> Union[int, str] is Union[int, str]
False
```
Is this change desired, is it documented? This breaks tests in https://github.com/python-attrs/cattrs/blob/d8f17b7e7e57006171027df4d647a6fe068b623e/tests/test_disambiguators.py#L211
```python
assert fn({"op": 0, "t": "MESSAGE_CREATE"}) is Union[F, G]
```
### CPython versions tested on:
3.14
### Operating systems tested on:
Linux
<!-- gh-linked-prs -->
### Linked PRs
* gh-131941
<!-- /gh-linked-prs -->
| 7473c600a5890ffd87e8761c418bf3312ce7f38c | ac3a7bfeccb752a59d88861e45b454db360aa69d |
python/cpython | python__cpython-131993 | # Compilation emits multiple warnings in the finally block
# Bug report
This code produces two `SyntaxWarning`s in the new REPL:
```python
>>> def some():
... try:
... return 1
... finally:
... return 2
...
<python-input-14>:5: SyntaxWarning: 'return' in a 'finally' block
<python-input-14>:5: SyntaxWarning: 'return' in a 'finally' block
```
<img width="788" alt="Image" src="https://github.com/user-attachments/assets/e3e669e7-e431-4c61-b291-b8248ecdf1d5" />
But, in our old REPL it produces just one:
<img width="788" alt="Image" src="https://github.com/user-attachments/assets/addd456d-95c7-4c9e-a01e-935feaeff6b1" />
Other `SyntaxWarning`s also do not show the same behavior in the new REPL. Example:
<img width="788" alt="Image" src="https://github.com/user-attachments/assets/85dd4b50-2674-43d4-93fd-dafddb591310" />
So, looks like only PEP-765 is affected, only in the new REPL.
CC @ambv @iritkatriel
<!-- gh-linked-prs -->
### Linked PRs
* gh-131993
* gh-132463
<!-- /gh-linked-prs -->
| 3d08c8ad20dfabd4864be139cd9c2eb5602ccdfe | d4e2cdc15bdfe84486b885eca885c44bc378fc41 |
python/cpython | python__cpython-132453 | # Add `multiprocessing.Process.interrupt`
# Feature or enhancement
### Proposal:
We have `.terminate()` and `.kill()` but not `.interrupt()` for terminating `multiprocessing.Process`. I believe the latter could be a useful addition when we have a python subprocess that we want to terminate in a "normal" way: i.e. triggering finalizers, etc.
This roughly demonstrates the difference when using one or the other (linux):
```python
from signal import SIGINT
from multiprocessing import Process
from time import sleep
def payload():
try:
print("working")
sleep(10)
finally:
print("a very important teardown")
print("> kill or terminate")
p = Process(target=payload)
p.start()
sleep(1)
p.kill() # or terminate
```
output
```
> kill or terminate
working
```
```python
class MyProcess(Process):
def interrupt(self):
return self._popen._send_signal(SIGINT)
print("> interrupt")
p = MyProcess(target=payload)
p.start()
sleep(1)
p.interrupt()
```
output
```
> interrupt
working
a very important teardown
Process MyProcess-2:
Traceback (most recent call last):
File "/usr/lib64/python3.13/multiprocessing/process.py", line 313, in _bootstrap
self.run()
~~~~~~~~^^
File "/usr/lib64/python3.13/multiprocessing/process.py", line 108, in run
self._target(*self._args, **self._kwargs)
~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "test.py", line 9, in payload
sleep(10)
~~~~~^^^^
KeyboardInterrupt
```
Motivation for sending `SIGINT` to subprocesses in general:
- it allows usual python patterns in the payload: we can now define `finally`, `with`, etc. and expect them to trigger normally
- SIGINT is a very lean way to cancel heavy payloads. It is widely supported such that if you have non-pure-python stack you still have higher chances to exit gracefully
- I also think it enables a better interaction with nested subprocesses: if a subprocess `S` manages some `Pool` or `concurrent` object, sending `SIGINT` to `S` will let nested subprocesses to exit gracefully as opposed to, for example, leaving orphans on linux. A pure nested `Process` will still leave orphans but you can write some code in the payload to work with this:
```python
def payload():
try:
p = MyProcess(target=inner)
p.start()
p.join()
finally:
p.interrupt()
```
Motivation for having `Process.interrupt()` in the standard library:
- it is very easy to misuse `terminate` or `kill` without understanding the consequences or particularities of the two. `.interrupt` could become the default or recommended way to interrupt long-running tasks. Even without any payload-specific code, it prints error and python stack trace on termination which is a good starting point to write and debug multiprocessing code, thus, making it a friendlier environment
- I feel like an average developer knows more about the difference between `.interrupt` and `.kill` than between `.terminate` and `.kill`. This is subjective, of course, but, discarding internal reasons to have both `.terminate` and `.kill`, I do not understand how `.interrupt` is not in this list.
### Has this already been discussed elsewhere?
This is a minor feature, which does not need previous discussion elsewhere
### Links to previous discussion of this feature:
_No response_
<!-- gh-linked-prs -->
### Linked PRs
* gh-132453
<!-- /gh-linked-prs -->
| 77605fa3bb4e380d5448665f70d73c8d3fcc2e75 | 862fd890361005598a6f4614ea0608c8447831c2 |
python/cpython | python__cpython-132030 | # Move description of grouping options in format specification docs
The form of format specifier is the following
```
[[fill]align][sign]["z"]["#"]["0"][width][grouping_option]["." precision][type]
```
Docs describe each option in the following order:
1. `align` and `fill`.
2. `sign`.
3. Option `z`.
4. Option `#`.
5. Option `,`.
6. Option `_`.
7. `width`, then option `0`.
8. `precision`.
9. `type`.
As you can notice, options `,` and `_` are not present in format spec, because they are actually part of `grouping_option`. For whatever reason they are described before `width`, but most importantly, their descriptions never mention they are part of `grouping_option`.
It can be super confusing for the first readthrough, as descriptions are out of order and written similar to standalone options `z` and `#`. I suggest the following changes:
1. Place descriptions of options `,` and `_` after the description of width.
2. Mention that they are part of `grouping_option`.
3. Maybe change BNF specification of `grouping_option` to `"," | "_"` to match their description order and order of addition to Python.
Example change:
> The *grouping_option* determines how digits in numbers are grouped. Its first option, `','`, signals...
>
> The other *grouping_option*, `'_'`, signals...
Alternatively, these description can be placed in a table, similar for the list of string presentation types.
> The *grouping_option* determines how digits in numbers are grouped. It can be one of the following:
>
> ==here goes the table==
<!-- gh-linked-prs -->
### Linked PRs
* gh-132030
* gh-132123
* gh-132203
* gh-132170
<!-- /gh-linked-prs -->
| 06a110f5227ba9d52f6205fde55924a14cab36ff | ac14d4a23f58c1f3e1909753aa17c1c302ea771d |
python/cpython | python__cpython-132022 | # CPython fails to compile when the internal `Py_STACKREF_DEBUG` macro is defined
# Bug report
### Bug description:
When the `Py_STACKREF_DEBUG` macro is defined here:
https://github.com/python/cpython/blob/c432d0147bdf1a66604e7a3d6a71660ae79b5f45/Include/internal/pycore_structs.h#L57-L58
CPython fails to compile:
```sh
~ make -s
In file included from ./Include/internal/pycore_dict.h:13,
from Objects/call.c:4:
./Include/internal/pycore_stackref.h: In function ‘PyStackRef_XCLOSE’:
./Include/internal/pycore_stackref.h:154:21: error: too few arguments to function ‘_Py_stackref_close’
154 | PyObject *obj = _Py_stackref_close(ref);
| ^~~~~~~~~~~~~~~~~~
./Include/internal/pycore_stackref.h:64:24: note: declared here
64 | PyAPI_FUNC(PyObject *) _Py_stackref_close(_PyStackRef ref, const char *filename, int linenumber);
| ^~~~~~~~~~~~~~~~~~
make: *** [Makefile:3127: Objects/call.o] Error 1
make: *** Waiting for unfinished jobs....
```
This error can probably be fixed by using `PyStackRef_CLOSE` instead of `_Py_stackref_close` but this reveals other errors which I'm not sure how to fix.
cc @markshannon since you last worked on this area.
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
Linux
<!-- gh-linked-prs -->
### Linked PRs
* gh-132022
<!-- /gh-linked-prs -->
| 275056a7fdcbe36aaac494b4183ae59943a338eb | b3e3cc054c2c7718c0ad7c4690f76716649a2588 |
python/cpython | python__cpython-131903 | # Tail-calling interpreter `configure` failures on x86_64/aarch64 apple-darwin/clang
# Bug report
### Bug description:
The configure step fails. I've rerun it once but it still failed.
- https://github.com/python/cpython/actions/runs/14138795354/job/39616444240#step:6:232
- https://github.com/python/cpython/actions/runs/14138795354/job/39616444585#step:6:231
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
macOS
<!-- gh-linked-prs -->
### Linked PRs
* gh-131903
<!-- /gh-linked-prs -->
| 39fa19a4ccb4c75d2421187e5b8d83c73b48ca4d | 2c3e3fe54ce9aaa57b1e870c450d4cad4db4b208 |
python/cpython | python__cpython-131889 | # intermittent ResourceWarning in test_ftplib
Hi! The buildbot **PPC64LE Fedora Stable LTO 3.13** (tier-2) has failed when building commit 07d4c7e7dbdb4e676acab386d1a5bf8e4ac16898.
You can take a look at the buildbot page here:
https://buildbot.python.org/#/builders/1492/builds/501
Summary of the results of the build (if available):
```python-traceback
Traceback (most recent call last):
File "/home/buildbot/buildarea/3.13.cstratak-fedora-stable-ppc64le.lto/build/Lib/test/test_ftplib.py", line 935, in tearDown
self.server = None
ResourceWarning: unclosed <ssl.SSLSocket fd=6, family=2, type=1, proto=0, laddr=('127.0.0.1', 39543), raddr=('127.0.0.1', 54764)>
k
Traceback (most recent call last):
File "/home/buildbot/buildarea/3.13.cstratak-fedora-stable-ppc64le.lto/build/Lib/test/test_ftplib.py", line 935, in tearDown
self.server = None
ResourceWarning: unclosed <ssl.SSLSocket fd=5, family=2, type=1, proto=0, laddr=('127.0.0.1', 43007), raddr=('127.0.0.1', 49844)>
k
```
_Originally posted by @bedevere-bot in https://github.com/python/cpython/issues/131802#issuecomment-2764337842_
<!-- gh-linked-prs -->
### Linked PRs
* gh-131889
* gh-132009
* gh-132010
<!-- /gh-linked-prs -->
| b0f77c4d250789fd1deaab4912919e2e6b89e583 | ab2a3dda1d3b6668162a847bf5b6aca2855a3416 |
python/cpython | python__cpython-132200 | # `json.dump()` with `indent` and `skipkeys` can be formatted incorrectly
# Bug report
### Bug description:
```python
>>> import json
>>> print(json.dumps({b"": 0}, indent=4, skipkeys=True))
{
}
```
Related: #123183
### CPython versions tested on:
3.13
### Operating systems tested on:
Windows
<!-- gh-linked-prs -->
### Linked PRs
* gh-132200
* gh-135060
* gh-135061
<!-- /gh-linked-prs -->
| ec12559ebafca01ded22c9013de64abe535c838d | 485b499610eefe362faf171f258b3a3588378ff1 |
python/cpython | python__cpython-131901 | # New REPL on Windows exits when accented character is pasted/typed
# Crash report
### What happened?
When pasting an accented character like ñ or é, or typing one such as ´p and pressing Enter, then up arrow, the new REPL on Windows will exit with the following error:
```python
Python 3.14.0a6+ (heads/fix_non_string_candidates_exit_repl-dirty:8008a588342, Mar 29 2025, 08:15:) [MSC v.1943 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> Traceback (most recent call last):
File "<frozen runpy>", line 198, in _run_module_as_main
File "<frozen runpy>", line 88, in _run_code
File "C:\Users\ddini\PycharmProjects\cpython\Lib\_pyrepl\__main__.py", line 6, in <module>
__pyrepl_interactive_console()
~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
File "C:\Users\ddini\PycharmProjects\cpython\Lib\_pyrepl\main.py", line 59, in interactive_console
run_multiline_interactive_console(console)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^
File "C:\Users\ddini\PycharmProjects\cpython\Lib\_pyrepl\simple_interact.py", line 137, in run_multiline_interactive_console
statement = multiline_input(more_lines, ps1, ps2)
File "C:\Users\ddini\PycharmProjects\cpython\Lib\_pyrepl\readline.py", line 389, in multiline_input
return reader.readline()
~~~~~~~~~~~~~~~^^
File "C:\Users\ddini\PycharmProjects\cpython\Lib\_pyrepl\reader.py", line 750, in readline
self.handle1()
~~~~~~~~~~~~^^
File "C:\Users\ddini\PycharmProjects\cpython\Lib\_pyrepl\reader.py", line 706, in handle1
event = self.console.get_event(block=False)
File "C:\Users\ddini\PycharmProjects\cpython\Lib\_pyrepl\windows_console.py", line 471, in get_event
self.event_queue.push(rec.Event.KeyEvent.uChar.UnicodeChar)
~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\ddini\PycharmProjects\cpython\Lib\_pyrepl\base_eventqueue.py", line 88, in push
assert len(self.buf) == 1
^^^^^^^^^^^^^^^^^^
AssertionError
```
In these cases, `len(self.buf)` is 3 instead of 1.
I'm running Python in Windows Terminal, `chcp` gives 850, changing it to 65001 (UTF-8) makes no difference.
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
Windows
### Output from running 'python -VV' on the command line:
Python 3.14.0a6+ (heads/main-dirty:7c3692fe275, Mar 24 2025, 19:20:37) [MSC v.1942 64 bit (AMD64)]
<!-- gh-linked-prs -->
### Linked PRs
* gh-131901
* gh-131910
* gh-133030
* gh-133445
* gh-133468
<!-- /gh-linked-prs -->
| 0c5151bc81ec8e8588bef4389df12a9ab50e9fa0 | d6078ed6d0cb8745460769bbb5dd2392c91c2f55 |
python/cpython | python__cpython-131866 | # Systemtap on linux does not properly apply hardening CFLAGS when compiling using --with-dtrace
# Bug report
### Bug description:
When compiling using --with-dtrace, Linux uses the systemtap script which utilizes a common default CFLAGS set to provide the object file. When extra hardening flags are passed during the compilation through the build environment, dtrace is not capturing them, resulting in the final binary or shared library missing some protections.
This behavior was documented [recently](https://sourceware.org/git/?p=systemtap.git;a=blobdiff;f=man/dtrace.1;h=ac49c06bff776a1bc78d1c8fd0ed7b99392f2171;hp=225f9301246ebeaa38e56288e8d7d25f22d629f6;hb=1b6ef910d381fca7338de1cd75065081e6bb5f1b;hpb=adfb8019972ba4721657c98acb8dd0045da7ca80)
Discovered when testing the -mbranch-protection=standard on aarch64 where pydtrace.o was missing the proper gnu property and the relevant hardware protections.
See https://bugzilla.redhat.com/show_bug.cgi?id=2350935
In order to fix that, adding the CFLAGS variable to the Makefile before the dtrace invocation resolves the issue.
On systems that use the original dtrace, changing the CFLAGS there should have no effects.
php dealt with a similar issue before, see:
https://github.com/php/php-src/commit/717b367085d55528cad82716bc5ad9736831540f
https://github.com/php/php-src/commit/475fd29527ffd86297e7cd61fd1617a7374c5220
https://github.com/php/php-src/commit/02b3fb1f6bbfc78c6c015b2300e22b1675c39747
### CPython versions tested on:
CPython main branch, 3.14, 3.13, 3.12, 3.11, 3.10, 3.9
### Operating systems tested on:
Linux
<!-- gh-linked-prs -->
### Linked PRs
* gh-131866
* gh-131950
* gh-131951
<!-- /gh-linked-prs -->
| 0cd4befb02df07c0b320cd6246227c13e57b2efb | 51e0f2b06c042b8742145ce094323a34b61f02aa |
python/cpython | python__cpython-131854 | # `msgfmt.py`: Test validity of generated file
# Feature or enhancement
### Proposal:
Test the header of the binary .mo file is generated correctly and is as expected for example the start of a `msgfmt.py` generated file:
```
de12 0495 0000 0000 0900 0000 1c00 0000
6400 0000 0000 0000 0000 0000 0000 0000
```
de12 0495 - magic number
0000 0000 - version
0900 0000 - # of entries
1c00 0000 - start of key index
6400 0000 - size of value table
0000 0000 - size of hash table
0000 0000 - offset of hash table
We currently do not test the structure of the `.mo` though it is partially covered as I presume the translation tests may fail but that depends on `gettext`.
Testing the last four will result in errors with a `msgfmt.c` generated `general.mo` as `msgfmt.c` generates a hash table (this will change soon I hope as we will too https://github.com/python/cpython/issues/131725 :-) so I think we should just test the first 3 for now and test the rest later.
I will send a pr
### Has this already been discussed elsewhere?
This is a minor feature, which does not need previous discussion elsewhere
### Links to previous discussion of this feature:
_No response_
<!-- gh-linked-prs -->
### Linked PRs
* gh-131854
* gh-131879
<!-- /gh-linked-prs -->
| fccf9ab33d0b16e6171c533d139b6118503197c1 | be2d2181e62cd138b0cdf80ebc0dd4058187c52a |
python/cpython | python__cpython-131880 | # `msgfmt.py`: Handling of header inconsistent with GNU `msgfmt`
# Bug report
### Bug description:
Running our current tests with a GNU generated `general.mo` we have a failure:
<details>
```python
SubTest failure: Traceback (most recent call last):
File "/home/stan/PycharmProjects/cpython/Lib/unittest/case.py", line 58, in testPartExecutor
yield
File "/home/stan/PycharmProjects/cpython/Lib/unittest/case.py", line 556, in subTest
yield
File "/home/stan/PycharmProjects/cpython/Lib/test/test_tools/test_msgfmt.py", line 55, in test_compilation
self.assertDictEqual(actual._catalog, expected._catalog)
~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: {'': [35 chars]N\nPOT-Creation-Date: 2024-10-26 18:06+0200\nP[563 chars]bar'} != {'': [35 chars]N\nPO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\nLa[521 chars]bar'}
{'': 'Project-Id-Version: PACKAGE VERSION\n'
- 'POT-Creation-Date: 2024-10-26 18:06+0200\n'
'PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n'
'Last-Translator: FULL NAME <EMAIL@ADDRESS>\n'
'Language-Team: LANGUAGE <LL@li.org>\n'
'MIME-Version: 1.0\n'
'Content-Type: text/plain; charset=UTF-8\n'
'Content-Transfer-Encoding: 8bit\n',
'\n newlines \n': '\n translated \n',
'"escapes"': '"translated"',
'Multilinestring': 'Multilinetranslation',
'abc\x04foo': 'bar',
'bar': 'baz',
'xyz\x04foo': 'bar',
('One email sent.', 0): 'One email sent.',
('One email sent.', 1): '%d emails sent.',
('abc\x04One email sent.', 0): 'One email sent.',
('abc\x04One email sent.', 1): '%d emails sent.'}
One or more subtests failed
Failed subtests list: (po_file=PosixPath('/home/stan/PycharmProjects/cpython/Lib/test/test_tools/msgfmt_data/general_po'))
Ran 13 tests in 0.375s
FAILED (failures=1)
```
</details>
This is because of a difference in what information is compiled from `general.po` header:
https://github.com/python/cpython/blob/4d4e32f3da88b4d6e2fd1df2514c83c42d0150b3/Lib/test/test_tools/msgfmt_data/general.po#L3-L10
`msgfmt.py` includes `"POT-Creation-Date: 2024-10-26 18:06+0200\n"` in the binary mo file whereas `msgfmt.c` does not.
<details>
<summary>Binary file diff</summary>
```bash
$ colordiff -y <(xxd messages.mo) <(xxd general.mo)
00000000: de12 0495 0000 0000 0900 0000 1c00 0000 .......... 00000000: de12 0495 0000 0000 0900 0000 1c00 0000 ..........
00000010: 6400 0000 0d00 0000 ac00 0000 0000 0000 d......... | 00000010: 6400 0000 0000 0000 0000 0000 0000 0000 d.........
00000020: e000 0000 0c00 0000 e100 0000 0900 0000 .......... | 00000020: ac00 0000 0c00 0000 ad00 0000 0900 0000 ..........
00000030: ee00 0000 0f00 0000 f800 0000 1f00 0000 .......... | 00000030: ba00 0000 0f00 0000 c400 0000 1f00 0000 ..........
00000040: 0801 0000 2300 0000 2801 0000 0700 0000 ....#...(. | 00000040: d400 0000 2300 0000 f400 0000 0700 0000 ....#.....
00000050: 4c01 0000 0300 0000 5401 0000 0700 0000 L.......T. | 00000050: 1801 0000 0300 0000 2001 0000 0700 0000 ........ .
00000060: 5801 0000 f500 0000 6001 0000 0e00 0000 X.......`. | 00000060: 2401 0000 1e01 0000 2c01 0000 0e00 0000 $.......,.
00000070: 5602 0000 0c00 0000 6502 0000 1400 0000 V.......e. | 00000070: 4b02 0000 0c00 0000 5a02 0000 1400 0000 K.......Z.
00000080: 7202 0000 1f00 0000 8702 0000 1f00 0000 r......... | 00000080: 6702 0000 1f00 0000 7c02 0000 1f00 0000 g.......|.
00000090: a702 0000 0300 0000 c702 0000 0300 0000 .......... | 00000090: 9c02 0000 0300 0000 bc02 0000 0300 0000 ..........
000000a0: cb02 0000 0300 0000 cf02 0000 0100 0000 .......... | 000000a0: c002 0000 0300 0000 c402 0000 000a 206e ..........
000000b0: 0300 0000 0000 0000 0800 0000 0900 0000 .......... | 000000b0: 6577 6c69 6e65 7320 0a00 2265 7363 6170 ewlines ..
000000c0: 0700 0000 0200 0000 0000 0000 0400 0000 .......... | 000000c0: 6573 2200 4d75 6c74 696c 696e 6573 7472 es".Multil
000000d0: 0500 0000 0000 0000 0600 0000 0000 0000 .......... | 000000d0: 696e 6700 4f6e 6520 656d 6169 6c20 7365 ing.One em
000000e0: 000a 206e 6577 6c69 6e65 7320 0a00 2265 .. newline | 000000e0: 6e74 2e00 2564 2065 6d61 696c 7320 7365 nt..%d ema
000000f0: 7363 6170 6573 2200 4d75 6c74 696c 696e scapes".Mu | 000000f0: 6e74 2e00 6162 6304 4f6e 6520 656d 6169 nt..abc.On
00000100: 6573 7472 696e 6700 4f6e 6520 656d 6169 estring.On | 00000100: 6c20 7365 6e74 2e00 2564 2065 6d61 696c l sent..%d
00000110: 6c20 7365 6e74 2e00 2564 2065 6d61 696c l sent..%d | 00000110: 7320 7365 6e74 2e00 6162 6304 666f 6f00 s sent..ab
00000120: 7320 7365 6e74 2e00 6162 6304 4f6e 6520 s sent..ab | 00000120: 6261 7200 7879 7a04 666f 6f00 5072 6f6a bar.xyz.fo
00000130: 656d 6169 6c20 7365 6e74 2e00 2564 2065 email sent | 00000130: 6563 742d 4964 2d56 6572 7369 6f6e 3a20 ect-Id-Ver
00000140: 6d61 696c 7320 7365 6e74 2e00 6162 6304 mails sent | 00000140: 5041 434b 4147 4520 5645 5253 494f 4e0a PACKAGE VE
00000150: 666f 6f00 6261 7200 7879 7a04 666f 6f00 foo.bar.xy | 00000150: 504f 542d 4372 6561 7469 6f6e 2d44 6174 POT-Creati
00000160: 5072 6f6a 6563 742d 4964 2d56 6572 7369 Project-Id | 00000160: 653a 2032 3032 342d 3130 2d32 3620 3138 e: 2024-10
00000170: 6f6e 3a20 5041 434b 4147 4520 5645 5253 on: PACKAG | 00000170: 3a30 362b 3032 3030 0a50 4f2d 5265 7669 :06+0200.P
00000180: 494f 4e0a 504f 2d52 6576 6973 696f 6e2d ION.PO-Rev | 00000180: 7369 6f6e 2d44 6174 653a 2059 4541 522d sion-Date:
00000190: 4461 7465 3a20 5945 4152 2d4d 4f2d 4441 Date: YEAR | 00000190: 4d4f 2d44 4120 484f 3a4d 492b 5a4f 4e45 MO-DA HO:M
000001a0: 2048 4f3a 4d49 2b5a 4f4e 450a 4c61 7374 HO:MI+ZON | 000001a0: 0a4c 6173 742d 5472 616e 736c 6174 6f72 .Last-Tran
000001b0: 2d54 7261 6e73 6c61 746f 723a 2046 554c -Translato | 000001b0: 3a20 4655 4c4c 204e 414d 4520 3c45 4d41 : FULL NAM
000001c0: 4c20 4e41 4d45 203c 454d 4149 4c40 4144 L NAME <EM | 000001c0: 494c 4041 4444 5245 5353 3e0a 4c61 6e67 IL@ADDRESS
000001d0: 4452 4553 533e 0a4c 616e 6775 6167 652d DRESS>.Lan | 000001d0: 7561 6765 2d54 6561 6d3a 204c 414e 4755 uage-Team:
000001e0: 5465 616d 3a20 4c41 4e47 5541 4745 203c Team: LANG | 000001e0: 4147 4520 3c4c 4c40 6c69 2e6f 7267 3e0a AGE <LL@li
000001f0: 4c4c 406c 692e 6f72 673e 0a4d 494d 452d LL@li.org> | 000001f0: 4d49 4d45 2d56 6572 7369 6f6e 3a20 312e MIME-Versi
00000200: 5665 7273 696f 6e3a 2031 2e30 0a43 6f6e Version: 1 | 00000200: 300a 436f 6e74 656e 742d 5479 7065 3a20 0.Content-
00000210: 7465 6e74 2d54 7970 653a 2074 6578 742f tent-Type: | 00000210: 7465 7874 2f70 6c61 696e 3b20 6368 6172 text/plain
00000220: 706c 6169 6e3b 2063 6861 7273 6574 3d55 plain; cha | 00000220: 7365 743d 5554 462d 380a 436f 6e74 656e set=UTF-8.
00000230: 5446 2d38 0a43 6f6e 7465 6e74 2d54 7261 TF-8.Conte | 00000230: 742d 5472 616e 7366 6572 2d45 6e63 6f64 t-Transfer
00000240: 6e73 6665 722d 456e 636f 6469 6e67 3a20 nsfer-Enco | 00000240: 696e 673a 2038 6269 740a 000a 2074 7261 ing: 8bit.
00000250: 3862 6974 0a00 0a20 7472 616e 736c 6174 8bit... tr | 00000250: 6e73 6c61 7465 6420 0a00 2274 7261 6e73 nslated ..
00000260: 6564 200a 0022 7472 616e 736c 6174 6564 ed .."tran | 00000260: 6c61 7465 6422 004d 756c 7469 6c69 6e65 lated".Mul
00000270: 2200 4d75 6c74 696c 696e 6574 7261 6e73 ".Multilin | 00000270: 7472 616e 736c 6174 696f 6e00 4f6e 6520 translatio
00000280: 6c61 7469 6f6e 004f 6e65 2065 6d61 696c lation.One | 00000280: 656d 6169 6c20 7365 6e74 2e00 2564 2065 email sent
00000290: 2073 656e 742e 0025 6420 656d 6169 6c73 sent..%d | 00000290: 6d61 696c 7320 7365 6e74 2e00 4f6e 6520 mails sent
000002a0: 2073 656e 742e 004f 6e65 2065 6d61 696c sent..One | 000002a0: 656d 6169 6c20 7365 6e74 2e00 2564 2065 email sent
000002b0: 2073 656e 742e 0025 6420 656d 6169 6c73 sent..%d | 000002b0: 6d61 696c 7320 7365 6e74 2e00 6261 7200 mails sent
000002c0: 2073 656e 742e 0062 6172 0062 617a 0062 sent..bar | 000002c0: 6261 7a00 6261 7200 baz.bar.
000002d0: 6172 00 ar. <
```
</details>
This is an inconsistency and I presume we want to be consistent with files generated by the GNU versions looking at tests.
I discovered this when working on https://github.com/python/cpython/issues/131725 Where if you remove the problematic line from the header and generate the .mo with my patch you get %100 consistency with the `msgfmt.c` generated .mo
<details>
<summary> No diff </summary>
```colordiff
$ colordiff -y <(xxd messages.mo) <(xxd general.mo)
00000000: de12 0495 0000 0000 0900 0000 1c00 0000 .......... 00000000: de12 0495 0000 0000 0900 0000 1c00 0000 ..........
00000010: 6400 0000 0d00 0000 ac00 0000 0000 0000 d......... 00000010: 6400 0000 0d00 0000 ac00 0000 0000 0000 d.........
00000020: e000 0000 0c00 0000 e100 0000 0900 0000 .......... 00000020: e000 0000 0c00 0000 e100 0000 0900 0000 ..........
00000030: ee00 0000 0f00 0000 f800 0000 1f00 0000 .......... 00000030: ee00 0000 0f00 0000 f800 0000 1f00 0000 ..........
00000040: 0801 0000 2300 0000 2801 0000 0700 0000 ....#...(. 00000040: 0801 0000 2300 0000 2801 0000 0700 0000 ....#...(.
00000050: 4c01 0000 0300 0000 5401 0000 0700 0000 L.......T. 00000050: 4c01 0000 0300 0000 5401 0000 0700 0000 L.......T.
00000060: 5801 0000 f500 0000 6001 0000 0e00 0000 X.......`. 00000060: 5801 0000 f500 0000 6001 0000 0e00 0000 X.......`.
00000070: 5602 0000 0c00 0000 6502 0000 1400 0000 V.......e. 00000070: 5602 0000 0c00 0000 6502 0000 1400 0000 V.......e.
00000080: 7202 0000 1f00 0000 8702 0000 1f00 0000 r......... 00000080: 7202 0000 1f00 0000 8702 0000 1f00 0000 r.........
00000090: a702 0000 0300 0000 c702 0000 0300 0000 .......... 00000090: a702 0000 0300 0000 c702 0000 0300 0000 ..........
000000a0: cb02 0000 0300 0000 cf02 0000 0100 0000 .......... 000000a0: cb02 0000 0300 0000 cf02 0000 0100 0000 ..........
000000b0: 0300 0000 0000 0000 0800 0000 0900 0000 .......... 000000b0: 0300 0000 0000 0000 0800 0000 0900 0000 ..........
000000c0: 0700 0000 0200 0000 0000 0000 0400 0000 .......... 000000c0: 0700 0000 0200 0000 0000 0000 0400 0000 ..........
000000d0: 0500 0000 0000 0000 0600 0000 0000 0000 .......... 000000d0: 0500 0000 0000 0000 0600 0000 0000 0000 ..........
000000e0: 000a 206e 6577 6c69 6e65 7320 0a00 2265 .. newline 000000e0: 000a 206e 6577 6c69 6e65 7320 0a00 2265 .. newline
000000f0: 7363 6170 6573 2200 4d75 6c74 696c 696e scapes".Mu 000000f0: 7363 6170 6573 2200 4d75 6c74 696c 696e scapes".Mu
00000100: 6573 7472 696e 6700 4f6e 6520 656d 6169 estring.On 00000100: 6573 7472 696e 6700 4f6e 6520 656d 6169 estring.On
00000110: 6c20 7365 6e74 2e00 2564 2065 6d61 696c l sent..%d 00000110: 6c20 7365 6e74 2e00 2564 2065 6d61 696c l sent..%d
00000120: 7320 7365 6e74 2e00 6162 6304 4f6e 6520 s sent..ab 00000120: 7320 7365 6e74 2e00 6162 6304 4f6e 6520 s sent..ab
00000130: 656d 6169 6c20 7365 6e74 2e00 2564 2065 email sent 00000130: 656d 6169 6c20 7365 6e74 2e00 2564 2065 email sent
00000140: 6d61 696c 7320 7365 6e74 2e00 6162 6304 mails sent 00000140: 6d61 696c 7320 7365 6e74 2e00 6162 6304 mails sent
00000150: 666f 6f00 6261 7200 7879 7a04 666f 6f00 foo.bar.xy 00000150: 666f 6f00 6261 7200 7879 7a04 666f 6f00 foo.bar.xy
00000160: 5072 6f6a 6563 742d 4964 2d56 6572 7369 Project-Id 00000160: 5072 6f6a 6563 742d 4964 2d56 6572 7369 Project-Id
00000170: 6f6e 3a20 5041 434b 4147 4520 5645 5253 on: PACKAG 00000170: 6f6e 3a20 5041 434b 4147 4520 5645 5253 on: PACKAG
00000180: 494f 4e0a 504f 2d52 6576 6973 696f 6e2d ION.PO-Rev 00000180: 494f 4e0a 504f 2d52 6576 6973 696f 6e2d ION.PO-Rev
00000190: 4461 7465 3a20 5945 4152 2d4d 4f2d 4441 Date: YEAR 00000190: 4461 7465 3a20 5945 4152 2d4d 4f2d 4441 Date: YEAR
000001a0: 2048 4f3a 4d49 2b5a 4f4e 450a 4c61 7374 HO:MI+ZON 000001a0: 2048 4f3a 4d49 2b5a 4f4e 450a 4c61 7374 HO:MI+ZON
000001b0: 2d54 7261 6e73 6c61 746f 723a 2046 554c -Translato 000001b0: 2d54 7261 6e73 6c61 746f 723a 2046 554c -Translato
000001c0: 4c20 4e41 4d45 203c 454d 4149 4c40 4144 L NAME <EM 000001c0: 4c20 4e41 4d45 203c 454d 4149 4c40 4144 L NAME <EM
000001d0: 4452 4553 533e 0a4c 616e 6775 6167 652d DRESS>.Lan 000001d0: 4452 4553 533e 0a4c 616e 6775 6167 652d DRESS>.Lan
000001e0: 5465 616d 3a20 4c41 4e47 5541 4745 203c Team: LANG 000001e0: 5465 616d 3a20 4c41 4e47 5541 4745 203c Team: LANG
000001f0: 4c4c 406c 692e 6f72 673e 0a4d 494d 452d LL@li.org> 000001f0: 4c4c 406c 692e 6f72 673e 0a4d 494d 452d LL@li.org>
00000200: 5665 7273 696f 6e3a 2031 2e30 0a43 6f6e Version: 1 00000200: 5665 7273 696f 6e3a 2031 2e30 0a43 6f6e Version: 1
00000210: 7465 6e74 2d54 7970 653a 2074 6578 742f tent-Type: 00000210: 7465 6e74 2d54 7970 653a 2074 6578 742f tent-Type:
00000220: 706c 6169 6e3b 2063 6861 7273 6574 3d55 plain; cha 00000220: 706c 6169 6e3b 2063 6861 7273 6574 3d55 plain; cha
00000230: 5446 2d38 0a43 6f6e 7465 6e74 2d54 7261 TF-8.Conte 00000230: 5446 2d38 0a43 6f6e 7465 6e74 2d54 7261 TF-8.Conte
00000240: 6e73 6665 722d 456e 636f 6469 6e67 3a20 nsfer-Enco 00000240: 6e73 6665 722d 456e 636f 6469 6e67 3a20 nsfer-Enco
00000250: 3862 6974 0a00 0a20 7472 616e 736c 6174 8bit... tr 00000250: 3862 6974 0a00 0a20 7472 616e 736c 6174 8bit... tr
00000260: 6564 200a 0022 7472 616e 736c 6174 6564 ed .."tran 00000260: 6564 200a 0022 7472 616e 736c 6174 6564 ed .."tran
00000270: 2200 4d75 6c74 696c 696e 6574 7261 6e73 ".Multilin 00000270: 2200 4d75 6c74 696c 696e 6574 7261 6e73 ".Multilin
00000280: 6c61 7469 6f6e 004f 6e65 2065 6d61 696c lation.One 00000280: 6c61 7469 6f6e 004f 6e65 2065 6d61 696c lation.One
00000290: 2073 656e 742e 0025 6420 656d 6169 6c73 sent..%d 00000290: 2073 656e 742e 0025 6420 656d 6169 6c73 sent..%d
000002a0: 2073 656e 742e 004f 6e65 2065 6d61 696c sent..One 000002a0: 2073 656e 742e 004f 6e65 2065 6d61 696c sent..One
000002b0: 2073 656e 742e 0025 6420 656d 6169 6c73 sent..%d 000002b0: 2073 656e 742e 0025 6420 656d 6169 6c73 sent..%d
000002c0: 2073 656e 742e 0062 6172 0062 617a 0062 sent..bar 000002c0: 2073 656e 742e 0062 6172 0062 617a 0062 sent..bar
000002d0: 6172 00 ar. 000002d0: 6172 00 ar.
```
</details>
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
_No response_
<!-- gh-linked-prs -->
### Linked PRs
* gh-131880
* gh-132216
* gh-132217
<!-- /gh-linked-prs -->
| ad6a032cebf59d1668caa7e726aa5da72e1cbb5c | 376631829aab72e320e19102fc55cbca5af8c733 |
python/cpython | python__cpython-131833 | # Implement PEP 758 – Allow except and except* expressions without parentheses
See PEP-758
<!-- gh-linked-prs -->
### Linked PRs
* gh-131833
<!-- /gh-linked-prs -->
| c2ac662f284b7c3f0701173f2467bf1e18aad2e2 | 053c285f6b41f92fbdd1d4ff0c959cceefacd7cd |
python/cpython | python__cpython-136270 | # Fix sqlite timezone-naive adapter recipe
# Documentation
This recipe for an adapter does not work as advertised:
```
def adapt_datetime_iso(val):
"""Adapt datetime.datetime to timezone-naive ISO 8601 date."""
return val.isoformat()
```
from: https://github.com/erlend-aasland/cpython/blob/a3711d1541c1b7987941b41d2247f87dae347117/Doc/library/sqlite3.rst?plain=1#L2287-L2289
or https://docs.python.org/3/library/sqlite3.html#sqlite3-adapter-converter-recipes
If the argument has a timezone, it will produce a timezone-aware result, contrary to its documentation
Consider the difference between these:
```
import datetime
print(datetime.datetime.now(datetime.timezone.utc).isoformat())
print(datetime.datetime.now(datetime.timezone.utc).replace(tzinfo=None).isoformat())
"""
2025-03-28T08:41:09.240880+00:00
2025-03-28T08:41:09.241046
"""
```
The recipe should instead be like this:
```
def adapt_datetime_iso(val):
"""Adapt datetime.datetime to timezone-naive ISO 8601 date."""
return val.replace(tzinfo=None).isoformat()
```
<!-- gh-linked-prs -->
### Linked PRs
* gh-136270
* gh-136467
* gh-136468
<!-- /gh-linked-prs -->
| 6a6cd3c07c0300c8799878a48d555470be2a52f7 | 3c43df4dbdb0a41b8e5503b7fa4741a29b6007e0 |
python/cpython | python__cpython-131819 | # `python -I`'s help message missing imply `-P`
# Feature or enhancement
### Proposal:
According to the [doc](https://docs.python.org/3/using/cmdline.html#cmdoption-I),
> -I Run Python in isolated mode. This also implies [-E](https://docs.python.org/3/using/cmdline.html#cmdoption-E), [-P](https://docs.python.org/3/using/cmdline.html#cmdoption-P) and [-s](https://docs.python.org/3/using/cmdline.html#cmdoption-s) options.
But it's not motioned in the `python --help`. `-P` does not add unsafe path in `sys.path`. I think this is useful information and should be included.
Related PR: https://github.com/python/cpython/pull/31542
### Has this already been discussed elsewhere?
No response given
### Links to previous discussion of this feature:
_No response_
<!-- gh-linked-prs -->
### Linked PRs
* gh-131819
* gh-131822
* gh-131823
<!-- /gh-linked-prs -->
| 8bd88e2827b2a887c2ea8e5ed0c0575704bfacdf | af2afd7c224389856e118d3f544c9621a016599f |
python/cpython | python__cpython-132192 | # Please upgrade bundled Expat to 2.7.1
# Bug report
### Bug description:
Hi! 👋
Please upgrade bundled Expat to 2.7.1 (e.g. for the fix to what can be argued a [regression](https://github.com/libexpat/libexpat/issues/980) that came with the fix for CVE-2024-8176 in Expat 2.7.0).
* GitHub release: https://github.com/libexpat/libexpat/releases/tag/R_2_7_1
* Change log: https://github.com/libexpat/libexpat/blob/R_2_7_1/expat/Changes
The CPython issue for previous 2.7.0 was #131261 and the related merged main pull request was #131272, in case you want to have a look. The `Dockerfile` from comment https://github.com/python/cpython/pull/123689#pullrequestreview-2280929950 could be of help with raising confidence in a bump pull request when going forward.
Thanks in advance!
CC @sethmlarson @gpshead
### CPython versions tested on:
3.9, 3.10, CPython main branch, 3.14, 3.13, 3.12, 3.11
### Operating systems tested on:
Other, Windows, macOS, Linux
<!-- gh-linked-prs -->
### Linked PRs
* gh-132192
* gh-132235
* gh-132236
* gh-132237
* gh-132240
* gh-132241
* gh-132242
<!-- /gh-linked-prs -->
| c0de6500249469e6fc5b458d6afb6bad1b6755cd | f0dcb29d3affbbe1ec25b922235f0556bd695067 |
python/cpython | python__cpython-131808 | # ResourceWarning in test.test_ucn.UnicodeNamesTest.test_named_sequences_full (when http request 404s)
# Bug report
### Bug description:
```
$ PYTHONTRACEMALLOC=25 ./python -Walways -m unittest test.test_ucn -vvv
test_aliases (test.test_ucn.UnicodeNamesTest.test_aliases) ... ok
test_aliases_names_in_pua_range (test.test_ucn.UnicodeNamesTest.test_aliases_names_in_pua_range) ... ok
test_ascii_letters (test.test_ucn.UnicodeNamesTest.test_ascii_letters) ... ok
test_bmp_characters (test.test_ucn.UnicodeNamesTest.test_bmp_characters) ... ok
test_cjk_unified_ideographs (test.test_ucn.UnicodeNamesTest.test_cjk_unified_ideographs) ... ok
test_errors (test.test_ucn.UnicodeNamesTest.test_errors) ... ok
test_general (test.test_ucn.UnicodeNamesTest.test_general) ... ok
test_hangul_syllables (test.test_ucn.UnicodeNamesTest.test_hangul_syllables) ... ok
test_issue16335 (test.test_ucn.UnicodeNamesTest.test_issue16335) ... skipped 'not enough memory: 12.0G minimum needed'
test_misc_symbols (test.test_ucn.UnicodeNamesTest.test_misc_symbols) ... ok
test_named_sequences_full (test.test_ucn.UnicodeNamesTest.test_named_sequences_full) ... fetching http://www.pythontest.net/unicode/15.1.0/NamedSequences.txt ...
skipped "Could not retrieve http://www.pythontest.net/unicode/15.1.0/NamedSequences.txt e=<HTTPError 404: 'Not Found'>"
test_named_sequences_names_in_pua_range (test.test_ucn.UnicodeNamesTest.test_named_sequences_names_in_pua_range) ... ok
test_named_sequences_sample (test.test_ucn.UnicodeNamesTest.test_named_sequences_sample) ... ok
test_strict_error_handling (test.test_ucn.UnicodeNamesTest.test_strict_error_handling) ... ok
----------------------------------------------------------------------
Ran 14 tests in 4.010s
OK (skipped=2)
<sys>:0: ResourceWarning: unclosed <socket.socket [closed] fd=3, family=2, type=1, proto=6>
Object allocated at (most recent call last):
File "/home/graingert/projects/cpython/Lib/unittest/main.py", lineno 270
self.result = testRunner.run(self.test)
File "/home/graingert/projects/cpython/Lib/unittest/runner.py", lineno 240
test(result)
File "/home/graingert/projects/cpython/Lib/unittest/suite.py", lineno 84
return self.run(*args, **kwds)
File "/home/graingert/projects/cpython/Lib/unittest/suite.py", lineno 122
test(result)
File "/home/graingert/projects/cpython/Lib/unittest/suite.py", lineno 84
return self.run(*args, **kwds)
File "/home/graingert/projects/cpython/Lib/unittest/suite.py", lineno 122
test(result)
File "/home/graingert/projects/cpython/Lib/unittest/suite.py", lineno 84
return self.run(*args, **kwds)
File "/home/graingert/projects/cpython/Lib/unittest/suite.py", lineno 122
test(result)
File "/home/graingert/projects/cpython/Lib/unittest/case.py", lineno 707
return self.run(*args, **kwds)
File "/home/graingert/projects/cpython/Lib/unittest/case.py", lineno 651
self._callTestMethod(testMethod)
File "/home/graingert/projects/cpython/Lib/unittest/case.py", lineno 606
if method() is not None:
File "/home/graingert/projects/cpython/Lib/test/test_ucn.py", lineno 182
testdata = support.open_urlresource(url, encoding="utf-8",
File "/home/graingert/projects/cpython/Lib/test/support/__init__.py", lineno 741
f = opener.open(url, timeout=INTERNET_TIMEOUT)
File "/home/graingert/projects/cpython/Lib/urllib/request.py", lineno 489
response = self._open(req, data)
File "/home/graingert/projects/cpython/Lib/urllib/request.py", lineno 506
result = self._call_chain(self.handle_open, protocol, protocol +
File "/home/graingert/projects/cpython/Lib/urllib/request.py", lineno 466
result = func(*args)
File "/home/graingert/projects/cpython/Lib/urllib/request.py", lineno 1348
return self.do_open(http.client.HTTPConnection, req)
File "/home/graingert/projects/cpython/Lib/urllib/request.py", lineno 1319
h.request(req.get_method(), req.selector, req.data, headers,
File "/home/graingert/projects/cpython/Lib/http/client.py", lineno 1338
self._send_request(method, url, body, headers, encode_chunked)
File "/home/graingert/projects/cpython/Lib/http/client.py", lineno 1384
self.endheaders(body, encode_chunked=encode_chunked)
File "/home/graingert/projects/cpython/Lib/http/client.py", lineno 1333
self._send_output(message_body, encode_chunked=encode_chunked)
File "/home/graingert/projects/cpython/Lib/http/client.py", lineno 1093
self.send(msg)
File "/home/graingert/projects/cpython/Lib/http/client.py", lineno 1037
self.connect()
File "/home/graingert/projects/cpython/Lib/http/client.py", lineno 1003
self.sock = self._create_connection(
File "/home/graingert/projects/cpython/Lib/socket.py", lineno 844
sock = socket(af, socktype, proto)
```
### CPython versions tested on:
3.14, CPython main branch, 3.13
### Operating systems tested on:
_No response_
<!-- gh-linked-prs -->
### Linked PRs
* gh-131808
* gh-131845
* gh-131846
<!-- /gh-linked-prs -->
| adb67ed7e465410829ac0b1f903ec5678e0e51cc | 27d1443897daff65e8a42269b591097f29d310c6 |
python/cpython | python__cpython-131859 | # `signal.set_wakeup_fd` does not work unless you register a no-op signal handler for the relevant signal
# Bug report
### Bug description:
Consider this program that uses `signal.signal.set_wakeup_fd`:
`demo.py`:
```python
import os
import signal
import struct
pipe_r, pipe_w = os.pipe()
os.set_blocking(pipe_w, False)
signal.set_wakeup_fd(pipe_w)
# Conditionally register a signal handler.
if os.environ["REGISTER_SIGNAL_HANDLER"] == "1":
print("Registering a signal handler for SIGURG")
signal.signal(signal.SIGURG, lambda signum, frame: None)
else:
print("Not registering a signal handler for SIGURG")
# Send the signal!
print("Sending myself a SIGURG")
signal.raise_signal(signal.SIGURG)
# Verify that we wrote the signal to the pipe.
print("About to read from pipe_r")
data = os.read(pipe_r, 1)
(raised, ) = struct.unpack('%uB' % len(data), data)
if raised != signal.SIGURG:
raise Exception("%r != %r" % (raised, signal.SIGURG))
os.close(pipe_r)
os.close(pipe_w)
print("Success!")
```
If I run this with `REGISTER_SIGNAL_HANDLER=1`, it works:
```console
$ REGISTER_SIGNAL_HANDLER=1 python demo.py
Registering a signal handler for SIGURG
Sending myself a SIGURG
About to read from pipe_r
Success!
```
However, if I run this without registering the signal handler, it hangs indefinitely:
```console
$ REGISTER_SIGNAL_HANDLER=0 python demo.py
Not registering a signal handler for SIGURG
Sending myself a SIGURG
About to read from pipe_r
```
All the real world usages I've been able to find of `signal.set_wakeup_fd` register a no-op signal handler for the signal(s) they're interested in. For example, see this CPython test: https://github.com/python/cpython/blob/8a00c9a4d2ce9d373b13f8f0a2265a65f4523293/Lib/test/test_signal.py#L340.
I don't know if we would consider this is a bug in the implementation or a bug in the documentation, but IMO, it's a pretty confusing experience for people who don't know this. Some ideas:
- Change `signal.set_wakeup_fd` to register a no-op signal handler for you if there isn't a corresponding signal handler already registered.
- Change `signal.set_wakeup_fd` to error out if there is no signal handler already registered.
- Update the docs to mention this requirement: https://docs.python.org/3/library/signal.html#signal.set_wakeup_fd
I'd be happy to implement some of these ideas if folks tell me what seems best!
### CPython versions tested on:
3.12
### Operating systems tested on:
Linux
<!-- gh-linked-prs -->
### Linked PRs
* gh-131859
* gh-132522
<!-- /gh-linked-prs -->
| 939476bbbb57ec3348c60df7c8f67c92038c8c89 | 8768df2fe94a8444baff47a5b8c7414a2118731a |
python/cpython | python__cpython-131783 | # Cast error with _Py_TryIncrefCompareStackRef and -Wc++11-narrowing
# Bug report
### Bug description:
The current `main` branch fails to build if the `-Wc++11-narrowing` option is used:
```
internal/pycore_stackref.h:649:39: error: non-constant-expression cannot be narrowed from type 'intptr_t' (aka 'long') to 'uintptr_t' (aka 'unsigned long') in initializer list [-Wc++11-narrowing]
649 | *out = (_PyStackRef){ .bits = (intptr_t)op | Py_TAG_DEFERRED };
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
```
The fix is to change the cast to `uintptr_t` which matches the type of `.bits`.
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
Linux
<!-- gh-linked-prs -->
### Linked PRs
* gh-131783
<!-- /gh-linked-prs -->
| c824d8e6f96a2c36c9f955f3be6138caaae35bfa | 151d1bfd1bb7ca9a36bb0f2bd6df53d64a1ba2f2 |
python/cpython | python__cpython-131844 | # Parser stack overflow on WASI with `--with-pydebug`
# Bug report
### Bug description:
```pytb
$ python Tools/wasm/wasi.py configure-build-python -- --with-pydebug
...
$ python Tools/wasm/wasi.py make-build-python
...
$ python Tools/wasm/wasi.py configure-host -- --with-pydebug
...
$ python Tools/wasm/wasi.py make-host
...
$ wasmtime run --dir .::/ cross-build/wasm32-wasip1/python.wasm -m test.test_compile
Traceback (most recent call last):
File "/Lib/runpy.py", line 189, in _run_module_as_main
mod_name, mod_spec, code = _get_module_details(mod_name, _Error)
~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^
File "/Lib/runpy.py", line 159, in _get_module_details
code = loader.get_code(mod_name)
File "<frozen importlib._bootstrap_external>", line 896, in get_code
File "<frozen importlib._bootstrap_external>", line 826, in source_to_code
File "<frozen importlib._bootstrap>", line 488, in _call_with_frames_removed
MemoryError: Parser stack overflowed - Python source too complex to parse
```
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
_No response_
**NOTE**
The failing tests have shifted; see https://github.com/python/cpython/issues/131770#issuecomment-2856268358
<!-- gh-linked-prs -->
### Linked PRs
* gh-131844
<!-- /gh-linked-prs -->
| 6ab4acecf91413fccd39f78ff14775d83498dab5 | 0dbaeb94a8b39972ebda7782b50bb49488951e3c |
python/cpython | python__cpython-131765 | # Unnecessary NULL check for `code->_co_monitoring` in `remove_tools`
If [monitoring](https://github.com/python/cpython/blob/ac12de2e6a6f5c1da83de0412bb7d03c28fdab63/Python/instrumentation.c#L837) variable is equal to NULL then we'll get segmentation fault in
[line 843](https://github.com/python/cpython/blob/ac12de2e6a6f5c1da83de0412bb7d03c28fdab63/Python/instrumentation.c#L843) since [monitoring = code->_co_monitoring](https://github.com/python/cpython/blob/ac12de2e6a6f5c1da83de0412bb7d03c28fdab63/Python/instrumentation.c#L835).
Otherwise, the if statement is incorrect.
<!-- gh-linked-prs -->
### Linked PRs
* gh-131765
<!-- /gh-linked-prs -->
| 151d1bfd1bb7ca9a36bb0f2bd6df53d64a1ba2f2 | 52b5eb95b770fa00ebbd449ba40cab4a0e7c7df7 |
python/cpython | python__cpython-131764 | # Dereferencing the pointer 'parser_token->metadata' with a NULL value
After having been assigned to a NULL value
https://github.com/python/cpython/blob/ac12de2e6a6f5c1da83de0412bb7d03c28fdab63/Parser/pegen.c#L194
pointer 'parser_token->metadata' is passed as 3rd parameter in call to function 'Py_DECREF':
https://github.com/python/cpython/blob/ac12de2e6a6f5c1da83de0412bb7d03c28fdab63/Parser/pegen.c#L197
where it is dereferenced.
Metadata for a new_token can be set using fstrings, such as `{1!=2=}`.
If _PyArena_AddPyObject returns -1, we will get a read access violation exception.
<!-- gh-linked-prs -->
### Linked PRs
* gh-131764
* gh-131774
* gh-131775
<!-- /gh-linked-prs -->
| 2c686a9ac243800b630d4a09622c8eb789f5b354 | 67fbfb42bd5dfe861d0c58d9e6c48d8eef033d24 |
python/cpython | python__cpython-131758 | # functools.lru_cache prevents function being cached from executing concurrently under free-threading
# Feature or enhancement
### Proposal:
`functools.lru_cache` was made free-thread safe but is not so in an efficient way. It works currently by serializing the function being cached and preventing it from executing concurrently even if it can. Effectively, for the function being cached, it is as if the GIL still exists.
### Has this already been discussed elsewhere?
This is a minor feature, which does not need previous discussion elsewhere
### Links to previous discussion of this feature:
_No response_
<!-- gh-linked-prs -->
### Linked PRs
* gh-131758
<!-- /gh-linked-prs -->
| 4c12a2db15639fe1b28f1f0f807a18fb7b71d851 | 45c447bf91ffabe4c0ba6d18f37d4e58925d5c91 |
python/cpython | python__cpython-131742 | # "What's new" notes for 3.12 don't mention `platform` changes regarding Windows 11 detection
# Documentation
Python 3.12 updated `platform` to the (at the time) latest state, which added platform string changes to support Windows 11. We have code that was written prior to 3.12's release that worked around `platform` labeling Windows 11 as `Windows-10`, which was broken by this change. (An incredibly tiny change that took a minute to fix on our end, but could confuse other developers with many more dependencies who may think some other dependency broke it)
This isn't mentioned in the "What's New" page or the full changelog, and both `3.12` and `3.11` have the same `__version__` for `platform` -- `1.0.8`. I've added a note to the 3.12 "What's New" page to document this, in the `gh-131742` PR.
<!-- gh-linked-prs -->
### Linked PRs
* gh-131742
* gh-131767
* gh-131768
<!-- /gh-linked-prs -->
| b9ca438daab6a4e2513ab38171e94c75da03d6e3 | 2d83891dfd51f595de68b0336b3bfc876f7b2507 |
python/cpython | python__cpython-131744 | # PyUnstable_GC_VisitObjects should traverse the permanent generation as well
# Bug report
### Bug description:
This function is meant to walk the heap and visit all GCable objects. It currently ignores the permanent / frozen generation, which is a problem when calling code expects to get all extant objects.
As a concrete example, the cinder JIT compiler uses this function to scan through all Python functions on the heap and try JIT compiling them. Functions that have been frozen by `gc.freeze()` or `immortalize_heap()` are not processed, and thus do not get compiled.
### CPython versions tested on:
3.12
### Operating systems tested on:
Linux
<!-- gh-linked-prs -->
### Linked PRs
* gh-131744
* gh-131754
* gh-131828
* gh-131786
<!-- /gh-linked-prs -->
| 7bb41aef4b7b8f3c3f07c11b801c5b7f8afaac7f | a26a301f8b09c1825b288fc8649f8174576361f4 |
python/cpython | python__cpython-131737 | # optimize any/all/tuple calls with a generator expression arg
See discussion in https://github.com/faster-cpython/ideas/issues/545.
<!-- gh-linked-prs -->
### Linked PRs
* gh-131737
<!-- /gh-linked-prs -->
| 2c8f329dc634290fb88636f85c05e473bc0104d5 | 674dbf3b3a72bd3d17298c2ead79f32edcff774a |
python/cpython | python__cpython-131739 | # Only do seclevel workaround if seclevel greater than 1
# Feature or enhancement
### Proposal:
We propose checking libssl's current security level before performing [our ubuntu workaround](https://github.com/python/cpython/blob/main/Lib/test/test_ssl.py#L153) in `test_ssl.py`, and skipping the workaround if it's unnecessary.
Due to backwards compatibility concerns around parsing short RSA keys, AWS-LC [only supports `SECLEVEL=0`](https://github.com/aws/aws-lc/pull/2065/).
### Has this already been discussed elsewhere?
I have already discussed this feature proposal on Discourse
### Links to previous discussion of this feature:
This issue is very similar to a series of other test modifications discussed in
https://discuss.python.org/t/support-building-ssl-and-hashlib-modules-against-aws-lc/44505/13
<!-- gh-linked-prs -->
### Linked PRs
* gh-131739
* gh-131966
* gh-131967
<!-- /gh-linked-prs -->
| 3b3720f1a26ab34377542b48eb6a6565f78ff892 | 23a658b9af410b72beeb28ba4ace2d83896c5631 |
python/cpython | python__cpython-131732 | # Generated interpreter does not spill the correct value of the stack pointer for output arrays.
# Bug report
### Bug description:
The generated C code for `UNPACK_SEQUENCE_TUPLE` saves the stack pointer before increasing it to account for the output array. This could result in some of the items being prematurely destroyed if `seq` is deleted.
https://github.com/python/cpython/blob/main/Python/generated_cases.c.h#L11927
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
_No response_
<!-- gh-linked-prs -->
### Linked PRs
* gh-131732
* gh-131773
<!-- /gh-linked-prs -->
| 1b8bb1ed0c4243796af531a35de982bc4f028215 | b9ca438daab6a4e2513ab38171e94c75da03d6e3 |
python/cpython | python__cpython-136814 | # http.client._MAXHEADERS = 100 limit no longer sufficient
# Bug report
### Bug description:
This hard-coded sanity check for HTTP response headers is no longer sufficient to fetch a Microsoft 365 page.
https://github.com/python/cpython/blob/0a91456ad14bb598646f50bf8f034e8887c0c468/Lib/http/client.py#L112
I do have a case open with Microsoft Support (TrackingID#2503130010002871), but it's not getting much traction as it's not causing problems with full web browsers.
Steps to reproduce:
```python
import http.client
con = http.client.HTTPSConnection('outlook.office365.com')
con.request("GET", "/owa/example.edu") # any domain seems to trigger
r = con.getresponse()
```
And that throws a HTTPException
```
>>> con = http.client.HTTPSConnection('outlook.office365.com')
>>> con.request("GET", "/owa/foo.bar")
>>> r = con.getresponse()
Traceback (most recent call last):
File "<python-input-8>", line 1, in <module>
r = con.getresponse()
File "C:\Users\jmacdone\AppData\Local\Programs\Python\Python313-arm64\Lib\http\client.py", line 1428, in getresponse
response.begin()
~~~~~~~~~~~~~~^^
File "C:\Users\jmacdone\AppData\Local\Programs\Python\Python313-arm64\Lib\http\client.py", line 350, in begin
self.headers = self.msg = parse_headers(self.fp)
~~~~~~~~~~~~~^^^^^^^^^
File "C:\Users\jmacdone\AppData\Local\Programs\Python\Python313-arm64\Lib\http\client.py", line 248, in parse_headers
headers = _read_headers(fp)
File "C:\Users\jmacdone\AppData\Local\Programs\Python\Python313-arm64\Lib\http\client.py", line 226, in _read_headers
raise HTTPException("got more than %d headers" % _MAXHEADERS)
http.client.HTTPException: got more than 100 headers
>>>
```
It seems to be just spilling over with 101 headers. Though, not consistently. Presumably it depends upon which load balancer node is responding.
```bash
$ curl --silent -D - 'https://outlook.office365.com/owa/example.edu' | grep -E "^[a-zA-Z-]+: " | wc -l
```
returns with 96, 99, 101, etc. headers, depending on ~Microsoft's mood~ unknown factors.
For background, it's common to use `https://outlook.com/example.edu` as a domain hint ("smart link") to go directly to a tenant's identity provider and avoid the "Please provide your email address" step. We have a nagios check for that, which broke recently as the number of `Set-Cookie: OpenIdConnect.token.[...]` variants continues to grow.
### CPython versions tested on:
3.13, 3.9, 3.11
### Operating systems tested on:
Linux, Windows
<!-- gh-linked-prs -->
### Linked PRs
* gh-136814
<!-- /gh-linked-prs -->
| 958657bbc3351c66dd8e319503675521bfdea49a | 18a7f5dad832488e8965fe29159a62abc18368e2 |
python/cpython | python__cpython-131720 | # _PyMem_FreeDelayed() missing a NULL pointer check
# Bug report
### Bug description:
Normally this is not a problem but if `_PyMem_FreeDelayed(NULL)` is called an (quite!) improbably high number of times in a single thread it can lead to memory exhaustion because the NULL is added to a queue. Fix is just to add a NULL check like `_PyObject_XDecRefDelayed()`.
### CPython versions tested on:
3.14
### Operating systems tested on:
_No response_
<!-- gh-linked-prs -->
### Linked PRs
* gh-131720
* gh-131722
<!-- /gh-linked-prs -->
| 0a91456ad14bb598646f50bf8f034e8887c0c468 | 44605aa93d31d6dff64dab96126942f94cf1dfe9 |
python/cpython | python__cpython-131759 | # `_suggestions` module missing on Windows, untested
# Bug report
### Bug description:
The `_suggestions` module isn't available in Windows builds because it's missing from `PC/config.c`. Since it's not tested and only imported in `traceback.py` in a `try:` block guarding against `ImportError`, it's easy to not detect that it's missing.
If there is no objection, I'll create a PR adding the `_suggestions` module to `PC/config.c` (and perhaps `config_minimal.c`) plus basic tests to detect whether it's available and working as intended.
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
Windows
<!-- gh-linked-prs -->
### Linked PRs
* gh-131759
* gh-131790
<!-- /gh-linked-prs -->
| 9ef9d687ff7cfc4bbf422ba61db04207b7f343d2 | d836d287a7bd1392f6d011888a7469854b0f4325 |
python/cpython | python__cpython-131713 | # Using a null pointer in set_tp_mro
https://github.com/python/cpython/blob/6fb5f7f4d9d22c49f5c29d2ffcbcc32b6cd7d06a/Objects/typeobject.c#L1673
In the **mro_hierarchy** function the **old_mro** variable can get a null value from the **mro_internal** call. [There is a check for NULL](https://github.com/python/cpython/blob/6fb5f7f4d9d22c49f5c29d2ffcbcc32b6cd7d06a/Objects/typeobject.c#L1657). However, in case of errors in the **PyTuple_Pack** or **PyList_Append** functions, this null value will be passed to function **set_tp_mro**.
Next, in the release build, **type->tp_mro** will simply get the NULL value, but in the debug build, the null pointer will be accessed.
The expression [PyTuple_CheckExact(mro) in function set_tp_mro](https://github.com/python/cpython/blob/6fb5f7f4d9d22c49f5c29d2ffcbcc32b6cd7d06a/Objects/typeobject.c#L577) does not check the argument for NULL.
<!-- gh-linked-prs -->
### Linked PRs
* gh-131713
<!-- /gh-linked-prs -->
| 44605aa93d31d6dff64dab96126942f94cf1dfe9 | f1967e72498209e42f7cf5eeff0cd84d1ec10d18 |
python/cpython | python__cpython-131708 | # RuntimeWarning in test_coroutines.CoroutineTest.test_await_17
# Bug report
### Bug description:
```
test_await_17 (test.test_coroutines.CoroutineTest.test_await_17) ... Warning -- Unraisable exception
Exception ignored while finalizing coroutine <coroutine object CoroutineTest.test_await_17.<locals>.A.__anext__ at 0x10205e970>:
Traceback (most recent call last):
File "/Users/admin/actions-runner/_work/cpython/cpython/Lib/warnings.py", line 700, in _warn_unawaited_coroutine
warn(msg, category=RuntimeWarning, stacklevel=2, source=coro)
RuntimeWarning: coroutine 'CoroutineTest.test_await_17.<locals>.A.__anext__' was never awaited
ok
```
### CPython versions tested on:
3.14, CPython main branch
### Operating systems tested on:
_No response_
<!-- gh-linked-prs -->
### Linked PRs
* gh-131708
<!-- /gh-linked-prs -->
| 6fb5f7f4d9d22c49f5c29d2ffcbcc32b6cd7d06a | 7d9442f0d55a7169940b9371d6e58a7c2ec1fa8a |
python/cpython | python__cpython-131730 | # clang-cl on Windows incorrectly compiles SEH (structured exception handling)
# Bug report
### Bug description:
clang-cl incorrectly handles SEH exception handling: https://github.com/llvm/llvm-project/issues/62606
E.g. in
https://github.com/python/cpython/blob/7c3692fe275088e986f92cec34dcccb823b31fa2/Modules/mmapmodule.c#L353-L360
where
https://github.com/python/cpython/blob/7c3692fe275088e986f92cec34dcccb823b31fa2/Modules/mmapmodule.c#L297-L316
This lets `test_mmap.MmapTests.test_access_violations` fail for clang-cl builds on Windows,
see e.g. https://github.com/python/cpython/actions/runs/14044831663/job/39323183797?pr=131690#step:4:566.
The suggestion in https://github.com/llvm/llvm-project/issues/62606#issuecomment-1538837488 is to use `EHa`,
> the problem is that without /EHa, the compiler assumes memory accesses don't trap
which seems wrong, and clearly is a compatibility issue wrt to MSVC.
Since Python code is compiled in C mode, `EHa` would seem really weird to me. Even more weird workaround: wrap the "body" (here `sourcecode`) in a separate function and guard that via SEH.
I've tried both workarounds and they would fix the problem.
### CPython versions tested on:
3.14
### Operating systems tested on:
Windows
<!-- gh-linked-prs -->
### Linked PRs
* gh-131730
<!-- /gh-linked-prs -->
| 488174dc68f90217fd43aa95d87441cc6bad6a29 | 90b82f2b61219c8f94e2deddc989a4c4fe9ea7c7 |
python/cpython | python__cpython-131690 | # Windows tail-call CI does not run the test cases
Excerpts from here https://github.com/python/cpython/pull/131526#issuecomment-2745152513:
See e.g. https://github.com/python/cpython/actions/runs/14006628024/job/39221297660 and https://github.com/python/cpython/actions/runs/13954576580/job/39062383429#step:4:326.
After building, no more output can be seen.
This is interesting, because
https://github.com/python/cpython/blob/ce79274e9f093bd06d2285c9af48dbcbc92173de/.github/workflows/tail-call.yml#L82-L91
clearly `./PCbuild/rt.bat` is invoked. Maybe the reason is, because it is not used with backslashes like in
https://github.com/python/cpython/blob/ce79274e9f093bd06d2285c9af48dbcbc92173de/.github/workflows/reusable-windows.yml#L52
The question then is, why `./PCbuild/build.bat` is working ...
<!-- gh-linked-prs -->
### Linked PRs
* gh-131690
<!-- /gh-linked-prs -->
| ce77da5871334bffea722984cb705fd20a763a1f | adb67ed7e465410829ac0b1f903ec5678e0e51cc |
python/cpython | python__cpython-131679 | # Flaky test `test_lru_cache_threaded3`
# Bug report
Seen locally. The `with self.subTest():` is not safe to call from multiple threads concurrently because `subTest` modifies `self._subtest`, so you might end up with the wrong or `None` subtest in the call to `testPartExecutor`.
https://github.com/python/cpython/blob/d372472896ca9d5666b40072a9ed7040300e11a0/Lib/test/test_functools.py#L1930-L1942
https://github.com/python/cpython/blob/d372472896ca9d5666b40072a9ed7040300e11a0/Lib/unittest/case.py#L553-L566
```
test_lru_cache_threaded3 (test.test_functools.TestLRUC.test_lru_cache_threaded3) ... Warning -- Uncaught thread exception: AttributeError
Exception in thread Thread-21 (test):
Traceback (most recent call last):
File "/raid/sgross/cpython/Lib/threading.py", line 1054, in _bootstrap_inner
self.run()
~~~~~~~~^^
File "/raid/sgross/cpython/Lib/threading.py", line 996, in run
self._target(*self._args, **self._kwargs)
~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/raid/sgross/cpython/Lib/test/test_functools.py", line 1937, in test
with self.subTest(thread=i):
~~~~~~~~~~~~^^^^^^^^^^
File "/raid/sgross/cpython/Lib/contextlib.py", line 148, in __exit__
next(self.gen)
~~~~^^^^^^^^^^
File "/raid/sgross/cpython/Lib/unittest/case.py", line 555, in subTest
with self._outcome.testPartExecutor(self._subtest, subTest=True):
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/raid/sgross/cpython/Lib/contextlib.py", line 148, in __exit__
next(self.gen)
~~~~^^^^^^^^^^
File "/raid/sgross/cpython/Lib/unittest/case.py", line 81, in testPartExecutor
self.result.addSubTest(test_case.test_case, test_case, None)
^^^^^^^^^^^^^^^^^^^
AttributeError: 'NoneType' object has no attribute 'test_case'
ok
```
<!-- gh-linked-prs -->
### Linked PRs
* gh-131679
* gh-131692
* gh-131693
<!-- /gh-linked-prs -->
| a1232459860235f4fb7896cc95966d87a51cbe32 | 7c3692fe275088e986f92cec34dcccb823b31fa2 |
python/cpython | python__cpython-131784 | # build: big endian ARM builds fail with mimalloc enabled
# Bug report
### Bug description:
Preface: I'm aware that big-endian ARM is not listed in PEP 11 where it's assumed that binaries are little endian by default.
I wrote an upstream issue to track this as well: https://github.com/microsoft/mimalloc/issues/1046
build log: https://autobuild.buildroot.org/results/26b752738022e8b46e810a08e28d687120e5c4e3/build-end.log
```
/home/autobuild/autobuild/instance-4/output-1/per-package/python3/host/bin/armeb-buildroot-linux-gnueabi-gcc -fno-strict-overflow -Wsign-compare -DNDEBUG -g -O3 -Wall -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Ofast -g2 -D_FORTIFY_SOURCE=1 -std=c11 -Wextra -Wno-unused-parameter -Wno-missing-field-initializers -Wstrict-prototypes -Werror=implicit-function-declaration -fvisibility=hidden -I./Include/internal -I./Include/internal/mimalloc -I. -I./Include -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -fPIC -DPy_BUILD_CORE_BUILTIN -c ./Modules/_abc.c -o Modules/_abc.o
In file included from ./Include/internal/mimalloc/mimalloc/types.h:24,
from ./Include/internal/pycore_mimalloc.h:44,
from ./Include/internal/pycore_interp.h:31,
from ./Include/internal/pycore_runtime.h:17,
from ./Include/internal/pycore_emscripten_trampoline.h:4,
from ./Include/internal/pycore_object.h:13,
from ./Modules/_abc.c:8:
./Include/internal/mimalloc/mimalloc/atomic.h:83:20: warning: 'mi_atomic_yield' declared 'static' but never defined [-Wunused-function]
83 | static inline void mi_atomic_yield(void);
| ^~~~~~~~~~~~~~~
```
This prevents CPython from linking correctly:
```
/home/autobuild/autobuild/instance-4/output-1/per-package/python3/host/bin/armeb-buildroot-linux-gnueabi-gcc -shared -Wl,--no-as-needed -o libpython3.so -Wl,-hlibpython3.so libpython3.13.so
/home/autobuild/autobuild/instance-4/output-1/per-package/python3/host/bin/armeb-buildroot-linux-gnueabi-gcc -Xlinker -export-dynamic -o python Programs/python.o -L. -lpython3.13 -ldl -lpthread -latomic -lm
/home/autobuild/autobuild/instance-4/output-1/per-package/python3/host/bin/../lib/gcc/armeb-buildroot-linux-gnueabi/13.3.0/../../../../armeb-buildroot-linux-gnueabi/bin/ld: ./libpython3.13.so: undefined reference to `mi_atomic_yield'
collect2: error: ld returned 1 exit status
make[1]: *** [Makefile:1024: python] Error 1
```
The quick fix may be as simple as changing the `__ARM_ARCH__` -> `__ARM_ARCH` macro reference, but I'm waiting on input from upstream
---
Workarounds: disable mimalloc
### CPython versions tested on:
3.13
### Operating systems tested on:
Linux
<!-- gh-linked-prs -->
### Linked PRs
* gh-131784
* gh-131954
<!-- /gh-linked-prs -->
| 03f6c8e239723637811fd8d278661f5292351197 | 0cd4befb02df07c0b320cd6246227c13e57b2efb |
python/cpython | python__cpython-131682 | # `anext(A(), default)` crashes when `StopAsyncIteration` is raised by a synchronous `__anext__`
# Crash report
### What happened?
```py
Python 3.14.0a6+ (heads/main:0e53038ea82, Mar 24 2025, 14:56:34) [GCC 7.5.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> class A:
... def __anext__(self):
... raise StopAsyncIteration
...
>>> anext(A(), "a")
Segmentation fault (core dumped)
```
There is no crash with `anext(A())` or when directly calling `__anext__()`. Or when `__anext__` is declared with `async def`, it's fine. Or when `__anext__()` doesn't raise, it's also fine.
NB: I haven't bisected the change but it *might* be related to what I wrote in 76ffaef729c91bb79da6df2ade48f3ec51118300.
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
_No response_
### Output from running 'python -VV' on the command line:
_No response_
<!-- gh-linked-prs -->
### Linked PRs
* gh-131682
* gh-131686
* gh-131687
<!-- /gh-linked-prs -->
| 929afd1d6ee4fb89ac818037effe6577947103de | 5fef4ff9ed47e82bce0696672eb2e4bd8953bb1e |
python/cpython | python__cpython-131671 | # `anextawaitable_close()` should be a `METH_NOARGS` not `METH_VARARGS`
# Bug report
### Bug description:
See https://github.com/python/cpython/pull/131609#discussion_r2009832215.
We can backport it because a TypeError is already raised (it's not raised by `anext_awaitable.close`, but rather by `coroutine_wrapper`).
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
_No response_
<!-- gh-linked-prs -->
### Linked PRs
* gh-131671
<!-- /gh-linked-prs -->
| 1393bd35485d9a8aa99ceb7389fece91bb3fdefa | c3b8d73208a25735b6355de73297a51e9c1306b3 |
python/cpython | python__cpython-131653 | # Remove duplicated bits in `Lib/test/clinic.test.c`
# Feature or enhancement
### Proposal:
We have some duplicated bits in `Lib/test/clinic.test.c`. This file should only consist of clinic directives and no actual code as it's never compiled (it will never compile as we never implement the functions). We have some code that just duplicates what clinic actually does.
### Has this already been discussed elsewhere?
This is a minor feature, which does not need previous discussion elsewhere
### Links to previous discussion of this feature:
_No response_
<!-- gh-linked-prs -->
### Linked PRs
* gh-131653
<!-- /gh-linked-prs -->
| 9888f175de5a942c76aec7fb11fae7ede367997b | ecd03739f87889bb2f173e0a476d26b468c776c9 |
python/cpython | python__cpython-131650 | # SyntaxWarning in test_string_literals
# Bug report
### Bug description:
```
./python -m unittest test.test_string_literals -vvv
/home/graingert/projects/cpython/Lib/test/test_string_literals.py:180: SyntaxWarning: "\ " is an invalid escape sequence. Such sequences will not work in the future. Did you mean "\\ "? A raw string is also an option.
eval("\"'''''''''''''''''''''invalid\ Escape\"")
/home/graingert/projects/cpython/Lib/test/test_string_literals.py:191: SyntaxWarning: "\ " is an invalid escape sequence. Such sequences will not work in the future. Did you mean "\\ "? A raw string is also an option.
eval("\"''Incorrect \ logic?\"")
test_eval_bytes_incomplete (test.test_string_literals.TestLiterals.test_eval_bytes_incomplete) ... ok
test_eval_bytes_invalid_escape (test.test_string_literals.TestLiterals.test_eval_bytes_invalid_escape) ... ok
test_eval_bytes_invalid_octal_escape (test.test_string_literals.TestLiterals.test_eval_bytes_invalid_octal_escape) ... ok
test_eval_bytes_normal (test.test_string_literals.TestLiterals.test_eval_bytes_normal) ... ok
test_eval_bytes_raw (test.test_string_literals.TestLiterals.test_eval_bytes_raw) ... ok
test_eval_str_incomplete (test.test_string_literals.TestLiterals.test_eval_str_incomplete) ... ok
test_eval_str_invalid_escape (test.test_string_literals.TestLiterals.test_eval_str_invalid_escape) ... ok
test_eval_str_invalid_octal_escape (test.test_string_literals.TestLiterals.test_eval_str_invalid_octal_escape) ... ok
test_eval_str_normal (test.test_string_literals.TestLiterals.test_eval_str_normal) ... ok
test_eval_str_raw (test.test_string_literals.TestLiterals.test_eval_str_raw) ... ok
test_eval_str_u (test.test_string_literals.TestLiterals.test_eval_str_u) ... ok
test_file_iso_8859_1 (test.test_string_literals.TestLiterals.test_file_iso_8859_1) ... ok
test_file_latin9 (test.test_string_literals.TestLiterals.test_file_latin9) ... ok
test_file_latin_1 (test.test_string_literals.TestLiterals.test_file_latin_1) ... ok
test_file_utf8 (test.test_string_literals.TestLiterals.test_file_utf8) ... ok
test_file_utf_8 (test.test_string_literals.TestLiterals.test_file_utf_8) ... ok
test_file_utf_8_error (test.test_string_literals.TestLiterals.test_file_utf_8_error) ... ok
test_invalid_escape_locations_with_offset (test.test_string_literals.TestLiterals.test_invalid_escape_locations_with_offset) ... ok
test_template (test.test_string_literals.TestLiterals.test_template) ... ok
test_uppercase_prefixes (test.test_string_literals.TestLiterals.test_uppercase_prefixes) ... ok
```
### CPython versions tested on:
3.12, 3.13, 3.14, CPython main branch
### Operating systems tested on:
Linux
<!-- gh-linked-prs -->
### Linked PRs
* gh-131650
* gh-131766
* gh-131772
<!-- /gh-linked-prs -->
| 2d83891dfd51f595de68b0336b3bfc876f7b2507 | 5abff6960b4aecb0d5c81c7482cf3faa74e1983d |
python/cpython | python__cpython-131648 | # ImportWarning in test_importlib ... test_permission_error_cwd
# Bug report
### Bug description:
```
test_permission_error_cwd (test.test_importlib.import_.test_path.Source_FindModuleTests.test_permission_error_cwd) ... /home/graingert/projects/cpython/Lib/importlib/_bootstrap_external.py:1227: ImportWarning: sys.path_hooks is empty
_warnings.warn('sys.path_hooks is empty', ImportWarning)
ok
```
### CPython versions tested on:
3.14, CPython main branch
### Operating systems tested on:
Linux
<!-- gh-linked-prs -->
### Linked PRs
* gh-131648
<!-- /gh-linked-prs -->
| 8ada7a9e1435302ec2cb73375122072d0e1cdd6f | ea0453ee979174d6fc14aae0fd85e4ede6742a86 |
python/cpython | python__cpython-131646 | # ResourceWarning(s) from test_asyncio.test_events.TestPyGetEventLoop.test_get_event_loop_new_process
# Bug report
### Bug description:
```
PYTHONTRACEMALLOC=25 ./python -m unittest test.test_asyncio.test_events -vvv
test_not_implemented (test.test_asyncio.test_events.AbstractEventLoopTests.test_not_implemented) ... ok
test_not_implemented_async (test.test_asyncio.test_events.AbstractEventLoopTests.test_not_implemented_async) ... ok
test_add_fds_after_closing (test.test_asyncio.test_events.EPollEventLoopTests.test_add_fds_after_closing) ... ok
test_add_signal_handler (test.test_asyncio.test_events.EPollEventLoopTests.test_add_signal_handler) ... ok
test_bidirectional_pty (test.test_asyncio.test_events.EPollEventLoopTests.test_bidirectional_pty) ... ok
test_call_later (test.test_asyncio.test_events.EPollEventLoopTests.test_call_later) ... ok
test_call_soon (test.test_asyncio.test_events.EPollEventLoopTests.test_call_soon) ... ok
test_call_soon_threadsafe (test.test_asyncio.test_events.EPollEventLoopTests.test_call_soon_threadsafe) ... ok
test_call_soon_threadsafe_handle_block_cancellation (test.test_asyncio.test_events.EPollEventLoopTests.test_call_soon_threadsafe_handle_block_cancellation) ... ok
test_call_soon_threadsafe_handle_block_check_cancelled (test.test_asyncio.test_events.EPollEventLoopTests.test_call_soon_threadsafe_handle_block_check_cancelled) ... ok
test_call_soon_threadsafe_handle_cancel_other_thread (test.test_asyncio.test_events.EPollEventLoopTests.test_call_soon_threadsafe_handle_cancel_other_thread) ... ok
test_call_soon_threadsafe_handle_cancel_same_thread (test.test_asyncio.test_events.EPollEventLoopTests.test_call_soon_threadsafe_handle_cancel_same_thread) ... ok
test_call_soon_threadsafe_same_thread (test.test_asyncio.test_events.EPollEventLoopTests.test_call_soon_threadsafe_same_thread) ... ok
test_close (test.test_asyncio.test_events.EPollEventLoopTests.test_close) ... ok
test_close_running_event_loop (test.test_asyncio.test_events.EPollEventLoopTests.test_close_running_event_loop) ... ok
test_connect_accepted_socket (test.test_asyncio.test_events.EPollEventLoopTests.test_connect_accepted_socket) ... ok
test_connect_accepted_socket_ssl_timeout_for_plain_socket (test.test_asyncio.test_events.EPollEventLoopTests.test_connect_accepted_socket_ssl_timeout_for_plain_socket) ... ok
test_create_connection (test.test_asyncio.test_events.EPollEventLoopTests.test_create_connection) ... ok
test_create_connection_local_addr (test.test_asyncio.test_events.EPollEventLoopTests.test_create_connection_local_addr) ... ok
test_create_connection_local_addr_in_use (test.test_asyncio.test_events.EPollEventLoopTests.test_create_connection_local_addr_in_use) ... ok
test_create_connection_local_addr_nomatch_family (test.test_asyncio.test_events.EPollEventLoopTests.test_create_connection_local_addr_nomatch_family) ... ok
test_create_connection_local_addr_skip_different_family (test.test_asyncio.test_events.EPollEventLoopTests.test_create_connection_local_addr_skip_different_family) ... ok
test_create_datagram_endpoint (test.test_asyncio.test_events.EPollEventLoopTests.test_create_datagram_endpoint) ... ok
test_create_datagram_endpoint_ipv6 (test.test_asyncio.test_events.EPollEventLoopTests.test_create_datagram_endpoint_ipv6) ... ok
test_create_datagram_endpoint_sock (test.test_asyncio.test_events.EPollEventLoopTests.test_create_datagram_endpoint_sock) ... ok
test_create_server (test.test_asyncio.test_events.EPollEventLoopTests.test_create_server) ... ok
test_create_server_addr_in_use (test.test_asyncio.test_events.EPollEventLoopTests.test_create_server_addr_in_use) ... ok
test_create_server_dual_stack (test.test_asyncio.test_events.EPollEventLoopTests.test_create_server_dual_stack) ... ok
test_create_server_multiple_hosts_ipv4 (test.test_asyncio.test_events.EPollEventLoopTests.test_create_server_multiple_hosts_ipv4) ... ok
test_create_server_multiple_hosts_ipv6 (test.test_asyncio.test_events.EPollEventLoopTests.test_create_server_multiple_hosts_ipv6) ... ok
test_create_server_reuse_port (test.test_asyncio.test_events.EPollEventLoopTests.test_create_server_reuse_port) ... ok
test_create_server_sock (test.test_asyncio.test_events.EPollEventLoopTests.test_create_server_sock) ... ok
test_create_server_ssl (test.test_asyncio.test_events.EPollEventLoopTests.test_create_server_ssl) ... ok
test_create_server_ssl_match_failed (test.test_asyncio.test_events.EPollEventLoopTests.test_create_server_ssl_match_failed) ... ok
test_create_server_ssl_verified (test.test_asyncio.test_events.EPollEventLoopTests.test_create_server_ssl_verified) ... ok
test_create_server_ssl_verify_failed (test.test_asyncio.test_events.EPollEventLoopTests.test_create_server_ssl_verify_failed) ... ok
test_create_server_trsock (test.test_asyncio.test_events.EPollEventLoopTests.test_create_server_trsock) ... ok
test_create_ssl_connection (test.test_asyncio.test_events.EPollEventLoopTests.test_create_ssl_connection) ... ok
test_create_ssl_unix_connection (test.test_asyncio.test_events.EPollEventLoopTests.test_create_ssl_unix_connection) ... ok
test_create_unix_connection (test.test_asyncio.test_events.EPollEventLoopTests.test_create_unix_connection) ... ok
test_create_unix_server (test.test_asyncio.test_events.EPollEventLoopTests.test_create_unix_server) ... ok
test_create_unix_server_path_socket_error (test.test_asyncio.test_events.EPollEventLoopTests.test_create_unix_server_path_socket_error) ... ok
test_create_unix_server_ssl (test.test_asyncio.test_events.EPollEventLoopTests.test_create_unix_server_ssl) ... ok
test_create_unix_server_ssl_verified (test.test_asyncio.test_events.EPollEventLoopTests.test_create_unix_server_ssl_verified) ... ok
test_create_unix_server_ssl_verify_failed (test.test_asyncio.test_events.EPollEventLoopTests.test_create_unix_server_ssl_verify_failed) ... ok
test_datagram_send_to_non_listening_address (test.test_asyncio.test_events.EPollEventLoopTests.test_datagram_send_to_non_listening_address) ... ok
test_internal_fds (test.test_asyncio.test_events.EPollEventLoopTests.test_internal_fds) ... ok
test_prompt_cancellation (test.test_asyncio.test_events.EPollEventLoopTests.test_prompt_cancellation) ... ok
test_read_pipe (test.test_asyncio.test_events.EPollEventLoopTests.test_read_pipe) ... ok
test_read_pty_output (test.test_asyncio.test_events.EPollEventLoopTests.test_read_pty_output) ... ok
test_reader_callback (test.test_asyncio.test_events.EPollEventLoopTests.test_reader_callback) ... ok
test_remove_fds_after_closing (test.test_asyncio.test_events.EPollEventLoopTests.test_remove_fds_after_closing) ... ok
test_run_in_executor (test.test_asyncio.test_events.EPollEventLoopTests.test_run_in_executor) ... ok
test_run_in_executor_cancel (test.test_asyncio.test_events.EPollEventLoopTests.test_run_in_executor_cancel) ... ok
test_run_until_complete (test.test_asyncio.test_events.EPollEventLoopTests.test_run_until_complete) ... ok
test_run_until_complete_nesting (test.test_asyncio.test_events.EPollEventLoopTests.test_run_until_complete_nesting) ... ok
test_run_until_complete_stopped (test.test_asyncio.test_events.EPollEventLoopTests.test_run_until_complete_stopped) ... ok
test_server_close (test.test_asyncio.test_events.EPollEventLoopTests.test_server_close) ... ok
test_signal_handling_args (test.test_asyncio.test_events.EPollEventLoopTests.test_signal_handling_args) ... ok
test_signal_handling_while_selecting (test.test_asyncio.test_events.EPollEventLoopTests.test_signal_handling_while_selecting) ... ok
test_ssl_connect_accepted_socket (test.test_asyncio.test_events.EPollEventLoopTests.test_ssl_connect_accepted_socket) ... ok
test_subprocess_close_after_finish (test.test_asyncio.test_events.EPollEventLoopTests.test_subprocess_close_after_finish) ... ok
test_subprocess_close_client_stream (test.test_asyncio.test_events.EPollEventLoopTests.test_subprocess_close_client_stream) ... ok
test_subprocess_exec (test.test_asyncio.test_events.EPollEventLoopTests.test_subprocess_exec) ... ok
test_subprocess_exec_invalid_args (test.test_asyncio.test_events.EPollEventLoopTests.test_subprocess_exec_invalid_args) ... ok
test_subprocess_exitcode (test.test_asyncio.test_events.EPollEventLoopTests.test_subprocess_exitcode) ... ok
test_subprocess_interactive (test.test_asyncio.test_events.EPollEventLoopTests.test_subprocess_interactive) ... ok
test_subprocess_kill (test.test_asyncio.test_events.EPollEventLoopTests.test_subprocess_kill) ... ok
test_subprocess_send_signal (test.test_asyncio.test_events.EPollEventLoopTests.test_subprocess_send_signal) ... ok
test_subprocess_shell (test.test_asyncio.test_events.EPollEventLoopTests.test_subprocess_shell) ... ok
test_subprocess_shell_invalid_args (test.test_asyncio.test_events.EPollEventLoopTests.test_subprocess_shell_invalid_args) ... ok
test_subprocess_stderr (test.test_asyncio.test_events.EPollEventLoopTests.test_subprocess_stderr) ... ok
test_subprocess_stderr_redirect_to_stdout (test.test_asyncio.test_events.EPollEventLoopTests.test_subprocess_stderr_redirect_to_stdout) ... ok
test_subprocess_terminate (test.test_asyncio.test_events.EPollEventLoopTests.test_subprocess_terminate) ... ok
test_subprocess_wait_no_same_group (test.test_asyncio.test_events.EPollEventLoopTests.test_subprocess_wait_no_same_group) ... ok
test_timeout_rounding (test.test_asyncio.test_events.EPollEventLoopTests.test_timeout_rounding) ... ok
test_unclosed_pipe_transport (test.test_asyncio.test_events.EPollEventLoopTests.test_unclosed_pipe_transport) ... ok
test_write_pipe (test.test_asyncio.test_events.EPollEventLoopTests.test_write_pipe) ... ok
test_write_pipe_disconnect_on_close (test.test_asyncio.test_events.EPollEventLoopTests.test_write_pipe_disconnect_on_close) ... ok
test_write_pty (test.test_asyncio.test_events.EPollEventLoopTests.test_write_pty) ... ok
test_writer_callback (test.test_asyncio.test_events.EPollEventLoopTests.test_writer_callback) ... ok
test_callback_with_exception (test.test_asyncio.test_events.HandleTests.test_callback_with_exception) ... ok
test_coroutine_like_object_debug_formatting (test.test_asyncio.test_events.HandleTests.test_coroutine_like_object_debug_formatting) ... ok
test_handle (test.test_asyncio.test_events.HandleTests.test_handle) ... ok
test_handle_repr (test.test_asyncio.test_events.HandleTests.test_handle_repr) ... ok
test_handle_repr_debug (test.test_asyncio.test_events.HandleTests.test_handle_repr_debug) ... ok
test_handle_source_traceback (test.test_asyncio.test_events.HandleTests.test_handle_source_traceback) ... ok
test_handle_weakref (test.test_asyncio.test_events.HandleTests.test_handle_weakref) ... ok
test_abstract_event_loop_policy_deprecation (test.test_asyncio.test_events.PolicyTests.test_abstract_event_loop_policy_deprecation) ... ok
test_asyncio_set_event_loop_deprecation (test.test_asyncio.test_events.PolicyTests.test_asyncio_set_event_loop_deprecation) ... ok
test_default_event_loop_policy_deprecation (test.test_asyncio.test_events.PolicyTests.test_default_event_loop_policy_deprecation) ... ok
test_event_loop_policy (test.test_asyncio.test_events.PolicyTests.test_event_loop_policy) ... ok
test_get_event_loop (test.test_asyncio.test_events.PolicyTests.test_get_event_loop) ... ok
test_get_event_loop_after_set_none (test.test_asyncio.test_events.PolicyTests.test_get_event_loop_after_set_none) ... ok
test_get_event_loop_does_not_call_set_event_loop (test.test_asyncio.test_events.PolicyTests.test_get_event_loop_does_not_call_set_event_loop) ... ok
test_get_event_loop_policy (test.test_asyncio.test_events.PolicyTests.test_get_event_loop_policy) ... ok
test_get_event_loop_thread (test.test_asyncio.test_events.PolicyTests.test_get_event_loop_thread) ... ok
test_new_event_loop (test.test_asyncio.test_events.PolicyTests.test_new_event_loop) ... ok
test_set_event_loop (test.test_asyncio.test_events.PolicyTests.test_set_event_loop) ... ok
test_set_event_loop_policy (test.test_asyncio.test_events.PolicyTests.test_set_event_loop_policy) ... ok
test_add_fds_after_closing (test.test_asyncio.test_events.PollEventLoopTests.test_add_fds_after_closing) ... ok
test_add_signal_handler (test.test_asyncio.test_events.PollEventLoopTests.test_add_signal_handler) ... ok
test_bidirectional_pty (test.test_asyncio.test_events.PollEventLoopTests.test_bidirectional_pty) ... ok
test_call_later (test.test_asyncio.test_events.PollEventLoopTests.test_call_later) ... ok
test_call_soon (test.test_asyncio.test_events.PollEventLoopTests.test_call_soon) ... ok
test_call_soon_threadsafe (test.test_asyncio.test_events.PollEventLoopTests.test_call_soon_threadsafe) ... ok
test_call_soon_threadsafe_handle_block_cancellation (test.test_asyncio.test_events.PollEventLoopTests.test_call_soon_threadsafe_handle_block_cancellation) ... ok
test_call_soon_threadsafe_handle_block_check_cancelled (test.test_asyncio.test_events.PollEventLoopTests.test_call_soon_threadsafe_handle_block_check_cancelled) ... ok
test_call_soon_threadsafe_handle_cancel_other_thread (test.test_asyncio.test_events.PollEventLoopTests.test_call_soon_threadsafe_handle_cancel_other_thread) ... ok
test_call_soon_threadsafe_handle_cancel_same_thread (test.test_asyncio.test_events.PollEventLoopTests.test_call_soon_threadsafe_handle_cancel_same_thread) ... ok
test_call_soon_threadsafe_same_thread (test.test_asyncio.test_events.PollEventLoopTests.test_call_soon_threadsafe_same_thread) ... ok
test_close (test.test_asyncio.test_events.PollEventLoopTests.test_close) ... ok
test_close_running_event_loop (test.test_asyncio.test_events.PollEventLoopTests.test_close_running_event_loop) ... ok
test_connect_accepted_socket (test.test_asyncio.test_events.PollEventLoopTests.test_connect_accepted_socket) ... ok
test_connect_accepted_socket_ssl_timeout_for_plain_socket (test.test_asyncio.test_events.PollEventLoopTests.test_connect_accepted_socket_ssl_timeout_for_plain_socket) ... ok
test_create_connection (test.test_asyncio.test_events.PollEventLoopTests.test_create_connection) ... ok
test_create_connection_local_addr (test.test_asyncio.test_events.PollEventLoopTests.test_create_connection_local_addr) ... ok
test_create_connection_local_addr_in_use (test.test_asyncio.test_events.PollEventLoopTests.test_create_connection_local_addr_in_use) ... ok
test_create_connection_local_addr_nomatch_family (test.test_asyncio.test_events.PollEventLoopTests.test_create_connection_local_addr_nomatch_family) ... ok
test_create_connection_local_addr_skip_different_family (test.test_asyncio.test_events.PollEventLoopTests.test_create_connection_local_addr_skip_different_family) ... ok
test_create_datagram_endpoint (test.test_asyncio.test_events.PollEventLoopTests.test_create_datagram_endpoint) ... ok
test_create_datagram_endpoint_ipv6 (test.test_asyncio.test_events.PollEventLoopTests.test_create_datagram_endpoint_ipv6) ... ok
test_create_datagram_endpoint_sock (test.test_asyncio.test_events.PollEventLoopTests.test_create_datagram_endpoint_sock) ... ok
test_create_server (test.test_asyncio.test_events.PollEventLoopTests.test_create_server) ... ok
test_create_server_addr_in_use (test.test_asyncio.test_events.PollEventLoopTests.test_create_server_addr_in_use) ... ok
test_create_server_dual_stack (test.test_asyncio.test_events.PollEventLoopTests.test_create_server_dual_stack) ... ok
test_create_server_multiple_hosts_ipv4 (test.test_asyncio.test_events.PollEventLoopTests.test_create_server_multiple_hosts_ipv4) ... ok
test_create_server_multiple_hosts_ipv6 (test.test_asyncio.test_events.PollEventLoopTests.test_create_server_multiple_hosts_ipv6) ... ok
test_create_server_reuse_port (test.test_asyncio.test_events.PollEventLoopTests.test_create_server_reuse_port) ... ok
test_create_server_sock (test.test_asyncio.test_events.PollEventLoopTests.test_create_server_sock) ... ok
test_create_server_ssl (test.test_asyncio.test_events.PollEventLoopTests.test_create_server_ssl) ... ok
test_create_server_ssl_match_failed (test.test_asyncio.test_events.PollEventLoopTests.test_create_server_ssl_match_failed) ... ok
test_create_server_ssl_verified (test.test_asyncio.test_events.PollEventLoopTests.test_create_server_ssl_verified) ... ok
test_create_server_ssl_verify_failed (test.test_asyncio.test_events.PollEventLoopTests.test_create_server_ssl_verify_failed) ... ok
test_create_server_trsock (test.test_asyncio.test_events.PollEventLoopTests.test_create_server_trsock) ... ok
test_create_ssl_connection (test.test_asyncio.test_events.PollEventLoopTests.test_create_ssl_connection) ... ok
test_create_ssl_unix_connection (test.test_asyncio.test_events.PollEventLoopTests.test_create_ssl_unix_connection) ... ok
test_create_unix_connection (test.test_asyncio.test_events.PollEventLoopTests.test_create_unix_connection) ... ok
test_create_unix_server (test.test_asyncio.test_events.PollEventLoopTests.test_create_unix_server) ... ok
test_create_unix_server_path_socket_error (test.test_asyncio.test_events.PollEventLoopTests.test_create_unix_server_path_socket_error) ... ok
test_create_unix_server_ssl (test.test_asyncio.test_events.PollEventLoopTests.test_create_unix_server_ssl) ... ok
test_create_unix_server_ssl_verified (test.test_asyncio.test_events.PollEventLoopTests.test_create_unix_server_ssl_verified) ... ok
test_create_unix_server_ssl_verify_failed (test.test_asyncio.test_events.PollEventLoopTests.test_create_unix_server_ssl_verify_failed) ... ok
test_datagram_send_to_non_listening_address (test.test_asyncio.test_events.PollEventLoopTests.test_datagram_send_to_non_listening_address) ... ok
test_internal_fds (test.test_asyncio.test_events.PollEventLoopTests.test_internal_fds) ... ok
test_prompt_cancellation (test.test_asyncio.test_events.PollEventLoopTests.test_prompt_cancellation) ... ok
test_read_pipe (test.test_asyncio.test_events.PollEventLoopTests.test_read_pipe) ... ok
test_read_pty_output (test.test_asyncio.test_events.PollEventLoopTests.test_read_pty_output) ... ok
test_reader_callback (test.test_asyncio.test_events.PollEventLoopTests.test_reader_callback) ... ok
test_remove_fds_after_closing (test.test_asyncio.test_events.PollEventLoopTests.test_remove_fds_after_closing) ... ok
test_run_in_executor (test.test_asyncio.test_events.PollEventLoopTests.test_run_in_executor) ... ok
test_run_in_executor_cancel (test.test_asyncio.test_events.PollEventLoopTests.test_run_in_executor_cancel) ... ok
test_run_until_complete (test.test_asyncio.test_events.PollEventLoopTests.test_run_until_complete) ... ok
test_run_until_complete_nesting (test.test_asyncio.test_events.PollEventLoopTests.test_run_until_complete_nesting) ... ok
test_run_until_complete_stopped (test.test_asyncio.test_events.PollEventLoopTests.test_run_until_complete_stopped) ... ok
test_server_close (test.test_asyncio.test_events.PollEventLoopTests.test_server_close) ... ok
test_signal_handling_args (test.test_asyncio.test_events.PollEventLoopTests.test_signal_handling_args) ... ok
test_signal_handling_while_selecting (test.test_asyncio.test_events.PollEventLoopTests.test_signal_handling_while_selecting) ... ok
test_ssl_connect_accepted_socket (test.test_asyncio.test_events.PollEventLoopTests.test_ssl_connect_accepted_socket) ... ok
test_subprocess_close_after_finish (test.test_asyncio.test_events.PollEventLoopTests.test_subprocess_close_after_finish) ... ok
test_subprocess_close_client_stream (test.test_asyncio.test_events.PollEventLoopTests.test_subprocess_close_client_stream) ... ok
test_subprocess_exec (test.test_asyncio.test_events.PollEventLoopTests.test_subprocess_exec) ... ok
test_subprocess_exec_invalid_args (test.test_asyncio.test_events.PollEventLoopTests.test_subprocess_exec_invalid_args) ... ok
test_subprocess_exitcode (test.test_asyncio.test_events.PollEventLoopTests.test_subprocess_exitcode) ... ok
test_subprocess_interactive (test.test_asyncio.test_events.PollEventLoopTests.test_subprocess_interactive) ... ok
test_subprocess_kill (test.test_asyncio.test_events.PollEventLoopTests.test_subprocess_kill) ... ok
test_subprocess_send_signal (test.test_asyncio.test_events.PollEventLoopTests.test_subprocess_send_signal) ... ok
test_subprocess_shell (test.test_asyncio.test_events.PollEventLoopTests.test_subprocess_shell) ... ok
test_subprocess_shell_invalid_args (test.test_asyncio.test_events.PollEventLoopTests.test_subprocess_shell_invalid_args) ... ok
test_subprocess_stderr (test.test_asyncio.test_events.PollEventLoopTests.test_subprocess_stderr) ... ok
test_subprocess_stderr_redirect_to_stdout (test.test_asyncio.test_events.PollEventLoopTests.test_subprocess_stderr_redirect_to_stdout) ... ok
test_subprocess_terminate (test.test_asyncio.test_events.PollEventLoopTests.test_subprocess_terminate) ... ok
test_subprocess_wait_no_same_group (test.test_asyncio.test_events.PollEventLoopTests.test_subprocess_wait_no_same_group) ... ok
test_timeout_rounding (test.test_asyncio.test_events.PollEventLoopTests.test_timeout_rounding) ... ok
test_unclosed_pipe_transport (test.test_asyncio.test_events.PollEventLoopTests.test_unclosed_pipe_transport) ... ok
test_write_pipe (test.test_asyncio.test_events.PollEventLoopTests.test_write_pipe) ... ok
test_write_pipe_disconnect_on_close (test.test_asyncio.test_events.PollEventLoopTests.test_write_pipe_disconnect_on_close) ... ok
test_write_pty (test.test_asyncio.test_events.PollEventLoopTests.test_write_pty) ... ok
test_writer_callback (test.test_asyncio.test_events.PollEventLoopTests.test_writer_callback) ... ok
test_add_fds_after_closing (test.test_asyncio.test_events.SelectEventLoopTests.test_add_fds_after_closing) ... ok
test_add_signal_handler (test.test_asyncio.test_events.SelectEventLoopTests.test_add_signal_handler) ... ok
test_bidirectional_pty (test.test_asyncio.test_events.SelectEventLoopTests.test_bidirectional_pty) ... ok
test_call_later (test.test_asyncio.test_events.SelectEventLoopTests.test_call_later) ... ok
test_call_soon (test.test_asyncio.test_events.SelectEventLoopTests.test_call_soon) ... ok
test_call_soon_threadsafe (test.test_asyncio.test_events.SelectEventLoopTests.test_call_soon_threadsafe) ... ok
test_call_soon_threadsafe_handle_block_cancellation (test.test_asyncio.test_events.SelectEventLoopTests.test_call_soon_threadsafe_handle_block_cancellation) ... ok
test_call_soon_threadsafe_handle_block_check_cancelled (test.test_asyncio.test_events.SelectEventLoopTests.test_call_soon_threadsafe_handle_block_check_cancelled) ... ok
test_call_soon_threadsafe_handle_cancel_other_thread (test.test_asyncio.test_events.SelectEventLoopTests.test_call_soon_threadsafe_handle_cancel_other_thread) ... ok
test_call_soon_threadsafe_handle_cancel_same_thread (test.test_asyncio.test_events.SelectEventLoopTests.test_call_soon_threadsafe_handle_cancel_same_thread) ... ok
test_call_soon_threadsafe_same_thread (test.test_asyncio.test_events.SelectEventLoopTests.test_call_soon_threadsafe_same_thread) ... ok
test_close (test.test_asyncio.test_events.SelectEventLoopTests.test_close) ... ok
test_close_running_event_loop (test.test_asyncio.test_events.SelectEventLoopTests.test_close_running_event_loop) ... ok
test_connect_accepted_socket (test.test_asyncio.test_events.SelectEventLoopTests.test_connect_accepted_socket) ... ok
test_connect_accepted_socket_ssl_timeout_for_plain_socket (test.test_asyncio.test_events.SelectEventLoopTests.test_connect_accepted_socket_ssl_timeout_for_plain_socket) ... ok
test_create_connection (test.test_asyncio.test_events.SelectEventLoopTests.test_create_connection) ... ok
test_create_connection_local_addr (test.test_asyncio.test_events.SelectEventLoopTests.test_create_connection_local_addr) ... ok
test_create_connection_local_addr_in_use (test.test_asyncio.test_events.SelectEventLoopTests.test_create_connection_local_addr_in_use) ... ok
test_create_connection_local_addr_nomatch_family (test.test_asyncio.test_events.SelectEventLoopTests.test_create_connection_local_addr_nomatch_family) ... ok
test_create_connection_local_addr_skip_different_family (test.test_asyncio.test_events.SelectEventLoopTests.test_create_connection_local_addr_skip_different_family) ... ok
test_create_datagram_endpoint (test.test_asyncio.test_events.SelectEventLoopTests.test_create_datagram_endpoint) ... ok
test_create_datagram_endpoint_ipv6 (test.test_asyncio.test_events.SelectEventLoopTests.test_create_datagram_endpoint_ipv6) ... ok
test_create_datagram_endpoint_sock (test.test_asyncio.test_events.SelectEventLoopTests.test_create_datagram_endpoint_sock) ... ok
test_create_server (test.test_asyncio.test_events.SelectEventLoopTests.test_create_server) ... ok
test_create_server_addr_in_use (test.test_asyncio.test_events.SelectEventLoopTests.test_create_server_addr_in_use) ... ok
test_create_server_dual_stack (test.test_asyncio.test_events.SelectEventLoopTests.test_create_server_dual_stack) ... ok
test_create_server_multiple_hosts_ipv4 (test.test_asyncio.test_events.SelectEventLoopTests.test_create_server_multiple_hosts_ipv4) ... ok
test_create_server_multiple_hosts_ipv6 (test.test_asyncio.test_events.SelectEventLoopTests.test_create_server_multiple_hosts_ipv6) ... ok
test_create_server_reuse_port (test.test_asyncio.test_events.SelectEventLoopTests.test_create_server_reuse_port) ... ok
test_create_server_sock (test.test_asyncio.test_events.SelectEventLoopTests.test_create_server_sock) ... ok
test_create_server_ssl (test.test_asyncio.test_events.SelectEventLoopTests.test_create_server_ssl) ... ok
test_create_server_ssl_match_failed (test.test_asyncio.test_events.SelectEventLoopTests.test_create_server_ssl_match_failed) ... ok
test_create_server_ssl_verified (test.test_asyncio.test_events.SelectEventLoopTests.test_create_server_ssl_verified) ... ok
test_create_server_ssl_verify_failed (test.test_asyncio.test_events.SelectEventLoopTests.test_create_server_ssl_verify_failed) ... ok
test_create_server_trsock (test.test_asyncio.test_events.SelectEventLoopTests.test_create_server_trsock) ... ok
test_create_ssl_connection (test.test_asyncio.test_events.SelectEventLoopTests.test_create_ssl_connection) ... ok
test_create_ssl_unix_connection (test.test_asyncio.test_events.SelectEventLoopTests.test_create_ssl_unix_connection) ... ok
test_create_unix_connection (test.test_asyncio.test_events.SelectEventLoopTests.test_create_unix_connection) ... ok
test_create_unix_server (test.test_asyncio.test_events.SelectEventLoopTests.test_create_unix_server) ... ok
test_create_unix_server_path_socket_error (test.test_asyncio.test_events.SelectEventLoopTests.test_create_unix_server_path_socket_error) ... ok
test_create_unix_server_ssl (test.test_asyncio.test_events.SelectEventLoopTests.test_create_unix_server_ssl) ... ok
test_create_unix_server_ssl_verified (test.test_asyncio.test_events.SelectEventLoopTests.test_create_unix_server_ssl_verified) ... ok
test_create_unix_server_ssl_verify_failed (test.test_asyncio.test_events.SelectEventLoopTests.test_create_unix_server_ssl_verify_failed) ... ok
test_datagram_send_to_non_listening_address (test.test_asyncio.test_events.SelectEventLoopTests.test_datagram_send_to_non_listening_address) ... ok
test_internal_fds (test.test_asyncio.test_events.SelectEventLoopTests.test_internal_fds) ... ok
test_prompt_cancellation (test.test_asyncio.test_events.SelectEventLoopTests.test_prompt_cancellation) ... ok
test_read_pipe (test.test_asyncio.test_events.SelectEventLoopTests.test_read_pipe) ... ok
test_read_pty_output (test.test_asyncio.test_events.SelectEventLoopTests.test_read_pty_output) ... ok
test_reader_callback (test.test_asyncio.test_events.SelectEventLoopTests.test_reader_callback) ... ok
test_remove_fds_after_closing (test.test_asyncio.test_events.SelectEventLoopTests.test_remove_fds_after_closing) ... ok
test_run_in_executor (test.test_asyncio.test_events.SelectEventLoopTests.test_run_in_executor) ... ok
test_run_in_executor_cancel (test.test_asyncio.test_events.SelectEventLoopTests.test_run_in_executor_cancel) ... ok
test_run_until_complete (test.test_asyncio.test_events.SelectEventLoopTests.test_run_until_complete) ... ok
test_run_until_complete_nesting (test.test_asyncio.test_events.SelectEventLoopTests.test_run_until_complete_nesting) ... ok
test_run_until_complete_stopped (test.test_asyncio.test_events.SelectEventLoopTests.test_run_until_complete_stopped) ... ok
test_server_close (test.test_asyncio.test_events.SelectEventLoopTests.test_server_close) ... ok
test_signal_handling_args (test.test_asyncio.test_events.SelectEventLoopTests.test_signal_handling_args) ... ok
test_signal_handling_while_selecting (test.test_asyncio.test_events.SelectEventLoopTests.test_signal_handling_while_selecting) ... ok
test_ssl_connect_accepted_socket (test.test_asyncio.test_events.SelectEventLoopTests.test_ssl_connect_accepted_socket) ... ok
test_subprocess_close_after_finish (test.test_asyncio.test_events.SelectEventLoopTests.test_subprocess_close_after_finish) ... ok
test_subprocess_close_client_stream (test.test_asyncio.test_events.SelectEventLoopTests.test_subprocess_close_client_stream) ... ok
test_subprocess_exec (test.test_asyncio.test_events.SelectEventLoopTests.test_subprocess_exec) ... ok
test_subprocess_exec_invalid_args (test.test_asyncio.test_events.SelectEventLoopTests.test_subprocess_exec_invalid_args) ... ok
test_subprocess_exitcode (test.test_asyncio.test_events.SelectEventLoopTests.test_subprocess_exitcode) ... ok
test_subprocess_interactive (test.test_asyncio.test_events.SelectEventLoopTests.test_subprocess_interactive) ... ok
test_subprocess_kill (test.test_asyncio.test_events.SelectEventLoopTests.test_subprocess_kill) ... ok
test_subprocess_send_signal (test.test_asyncio.test_events.SelectEventLoopTests.test_subprocess_send_signal) ... ok
test_subprocess_shell (test.test_asyncio.test_events.SelectEventLoopTests.test_subprocess_shell) ... ok
test_subprocess_shell_invalid_args (test.test_asyncio.test_events.SelectEventLoopTests.test_subprocess_shell_invalid_args) ... ok
test_subprocess_stderr (test.test_asyncio.test_events.SelectEventLoopTests.test_subprocess_stderr) ... ok
test_subprocess_stderr_redirect_to_stdout (test.test_asyncio.test_events.SelectEventLoopTests.test_subprocess_stderr_redirect_to_stdout) ... ok
test_subprocess_terminate (test.test_asyncio.test_events.SelectEventLoopTests.test_subprocess_terminate) ... ok
test_subprocess_wait_no_same_group (test.test_asyncio.test_events.SelectEventLoopTests.test_subprocess_wait_no_same_group) ... ok
test_timeout_rounding (test.test_asyncio.test_events.SelectEventLoopTests.test_timeout_rounding) ... ok
test_unclosed_pipe_transport (test.test_asyncio.test_events.SelectEventLoopTests.test_unclosed_pipe_transport) ... ok
test_write_pipe (test.test_asyncio.test_events.SelectEventLoopTests.test_write_pipe) ... ok
test_write_pipe_disconnect_on_close (test.test_asyncio.test_events.SelectEventLoopTests.test_write_pipe_disconnect_on_close) ... ok
test_write_pty (test.test_asyncio.test_events.SelectEventLoopTests.test_write_pty) ... ok
test_writer_callback (test.test_asyncio.test_events.SelectEventLoopTests.test_writer_callback) ... ok
test_close (test.test_asyncio.test_events.TestAbstractServer.test_close) ... ok
test_get_loop (test.test_asyncio.test_events.TestAbstractServer.test_get_loop) ... ok
test_wait_closed (test.test_asyncio.test_events.TestAbstractServer.test_wait_closed) ... ok
test_get_event_loop_new_process (test.test_asyncio.test_events.TestCGetEventLoop.test_get_event_loop_new_process) ... ok
test_get_event_loop_returns_running_loop (test.test_asyncio.test_events.TestCGetEventLoop.test_get_event_loop_returns_running_loop) ... ok
test_get_event_loop_returns_running_loop2 (test.test_asyncio.test_events.TestCGetEventLoop.test_get_event_loop_returns_running_loop2) ... ok
test_get_running_loop_already_running (test.test_asyncio.test_events.TestCGetEventLoop.test_get_running_loop_already_running) ... ok
test_get_event_loop_new_process (test.test_asyncio.test_events.TestPyGetEventLoop.test_get_event_loop_new_process) ... /home/graingert/projects/cpython/Lib/asyncio/base_events.py:758: ResourceWarning: unclosed event loop <_UnixSelectorEventLoop running=False closed=False debug=False>
_warn(f"unclosed event loop {self!r}", ResourceWarning, source=self)
Object allocated at (most recent call last):
File "<frozen runpy>", lineno 198
File "<frozen runpy>", lineno 88
File "/home/graingert/projects/cpython/Lib/unittest/__main__.py", lineno 18
main(module=None)
File "/home/graingert/projects/cpython/Lib/unittest/main.py", lineno 104
self.runTests()
File "/home/graingert/projects/cpython/Lib/unittest/main.py", lineno 270
self.result = testRunner.run(self.test)
File "/home/graingert/projects/cpython/Lib/unittest/runner.py", lineno 259
test(result)
File "/home/graingert/projects/cpython/Lib/unittest/suite.py", lineno 84
return self.run(*args, **kwds)
File "/home/graingert/projects/cpython/Lib/unittest/suite.py", lineno 122
test(result)
File "/home/graingert/projects/cpython/Lib/unittest/suite.py", lineno 84
return self.run(*args, **kwds)
File "/home/graingert/projects/cpython/Lib/unittest/suite.py", lineno 122
test(result)
File "/home/graingert/projects/cpython/Lib/unittest/suite.py", lineno 84
return self.run(*args, **kwds)
File "/home/graingert/projects/cpython/Lib/unittest/suite.py", lineno 122
test(result)
File "/home/graingert/projects/cpython/Lib/unittest/case.py", lineno 716
return self.run(*args, **kwds)
File "/home/graingert/projects/cpython/Lib/unittest/case.py", lineno 660
self._callTestMethod(testMethod)
File "/home/graingert/projects/cpython/Lib/unittest/case.py", lineno 606
result = method()
File "/home/graingert/projects/cpython/Lib/test/test_asyncio/test_events.py", lineno 3018
self.loop.run_until_complete(main())
File "/home/graingert/projects/cpython/Lib/asyncio/base_events.py", lineno 706
self.run_forever()
File "/home/graingert/projects/cpython/Lib/asyncio/base_events.py", lineno 677
self._run_once()
File "/home/graingert/projects/cpython/Lib/asyncio/base_events.py", lineno 2037
handle._run()
File "/home/graingert/projects/cpython/Lib/asyncio/events.py", lineno 98
self._context.run(self._callback, *self._args)
File "/home/graingert/projects/cpython/Lib/test/test_asyncio/test_events.py", lineno 3008
loop = asyncio.new_event_loop()
File "/home/graingert/projects/cpython/Lib/asyncio/events.py", lineno 849
return _get_event_loop_policy().new_event_loop()
File "/home/graingert/projects/cpython/Lib/asyncio/events.py", lineno 736
return self._loop_factory()
ok
test_get_event_loop_returns_running_loop (test.test_asyncio.test_events.TestPyGetEventLoop.test_get_event_loop_returns_running_loop) ... ok
test_get_event_loop_returns_running_loop2 (test.test_asyncio.test_events.TestPyGetEventLoop.test_get_event_loop_returns_running_loop2) ... ok
test_get_running_loop_already_running (test.test_asyncio.test_events.TestPyGetEventLoop.test_get_running_loop_already_running) ... ok
test_get_loop (test.test_asyncio.test_events.TestServer.test_get_loop) ... ok
test_hash (test.test_asyncio.test_events.TimerTests.test_hash) ... ok
test_timer (test.test_asyncio.test_events.TimerTests.test_timer) ... ok
test_timer_comparison (test.test_asyncio.test_events.TimerTests.test_timer_comparison) ... ok
test_timer_repr (test.test_asyncio.test_events.TimerTests.test_timer_repr) ... ok
test_timer_repr_debug (test.test_asyncio.test_events.TimerTests.test_timer_repr_debug) ... ok
test_when (test.test_asyncio.test_events.TimerTests.test_when) ... ok
----------------------------------------------------------------------
Ran 276 tests in 18.901s
OK
```
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
Linux
<!-- gh-linked-prs -->
### Linked PRs
* gh-131646
* gh-131661
<!-- /gh-linked-prs -->
| 71ce4acb25eb640a4582904172d2bb9600983f4c | 01ea4c77e51d6a36000da7da7bfb48c58591b225 |
python/cpython | python__cpython-131625 | # posix_spawn and posix_spawnp tests failing on NetBSD with stack limit assertions
# Bug report
### Bug description:
Multiple tests in `test_posix` for `posix_spawn` and `posix_spawnp` functionality are failing on NetBSD with stack limit-related assertions in the spawned processes. All failing tests show child processes exiting with code -6 (SIGABRT).
### Environment
CPython version: 3.14.0a6+ (heads/main:557d2d20d48, Mar 23 2025)
Platform: NetBSD-10.0-amd64-x86_64-64bit-ELF little-endian
Build Flags: `--with-debug`
### Tests
```sh
./python -m test test_posix -m TestPosixSpawn -m TestPosixSpawnP -v
```
Output:
```python
─./python -m test test_posix -m TestPosixSpawn -m TestPosixSpawnP -v
== CPython 3.14.0a6+ (heads/main:557d2d20d48, Mar 23 2025, 15:29:59) [GCC 10.5.0]
== NetBSD-10.0-amd64-x86_64-64bit-ELF little-endian
== Python build: debug
== cwd: /home/blue/cpython/build/test_python_worker_362æ
== CPU count: 16
== encodings: locale=UTF-8 FS=utf-8
== resources: all test resources are disabled, use -u option to unskip tests
Using random seed: 1713724710
0:00:00 load avg: 0.17 Run 1 test sequentially in a single process
0:00:00 load avg: 0.17 [1/1] test_posix
test_bad_file_actions (test.test_posix.TestPosixSpawn.test_bad_file_actions) ... ok
test_close_file (test.test_posix.TestPosixSpawn.test_close_file) ... assertion "here_addr < _tstate->c_stack_top" failed: file "Python/ceval.c", line 468, function "_Py_InitializeRecursionLimits"
FAIL
test_dup2 (test.test_posix.TestPosixSpawn.test_dup2) ... ok
test_empty_file_actions (test.test_posix.TestPosixSpawn.test_empty_file_actions) ... ok
test_multiple_file_actions (test.test_posix.TestPosixSpawn.test_multiple_file_actions) ... assertion "here_addr < _tstate->c_stack_top" failed: file "Python/ceval.c", line 468, function "_Py_InitializeRecursionLimits"
FAIL
test_no_such_executable (test.test_posix.TestPosixSpawn.test_no_such_executable) ... ok
test_none_file_actions (test.test_posix.TestPosixSpawn.test_none_file_actions) ... ok
test_open_file (test.test_posix.TestPosixSpawn.test_open_file) ... assertion "here_addr < _tstate->c_stack_top" failed: file "Python/ceval.c", line 468, function "_Py_InitializeRecursionLimits"
FAIL
test_resetids (test.test_posix.TestPosixSpawn.test_resetids) ... assertion "here_addr < _tstate->c_stack_top" failed: file "Python/ceval.c", line 468, function "_Py_InitializeRecursionLimits"
FAIL
test_resetids_explicit_default (test.test_posix.TestPosixSpawn.test_resetids_explicit_default) ... assertion "here_addr < _tstate->c_stack_top" failed: file "Python/ceval.c", line 468, function "_Py_InitializeRecursionLimits"
FAIL
test_returns_pid (test.test_posix.TestPosixSpawn.test_returns_pid) ... assertion "here_addr < _tstate->c_stack_top" failed: file "Python/ceval.c", line 468, function "_Py_InitializeRecursionLimits"
FAIL
test_setpgroup (test.test_posix.TestPosixSpawn.test_setpgroup) ... assertion "here_addr < _tstate->c_stack_top" failed: file "Python/ceval.c", line 468, function "_Py_InitializeRecursionLimits"
FAIL
test_setpgroup_wrong_type (test.test_posix.TestPosixSpawn.test_setpgroup_wrong_type) ... ok
test_setscheduler_only_param (test.test_posix.TestPosixSpawn.test_setscheduler_only_param) ... skipped 'bpo-34685: test can fail on BSD'
test_setscheduler_with_policy (test.test_posix.TestPosixSpawn.test_setscheduler_with_policy) ... skipped 'bpo-34685: test can fail on BSD'
test_setsid (test.test_posix.TestPosixSpawn.test_setsid) ... skipped "setsid is not supported: NotImplementedError('posix_spawn: setsid unavailable on this platform')"
test_setsigdef (test.test_posix.TestPosixSpawn.test_setsigdef) ... ok
test_setsigdef_wrong_type (test.test_posix.TestPosixSpawn.test_setsigdef_wrong_type) ... ok
test_setsigmask (test.test_posix.TestPosixSpawn.test_setsigmask) ... assertion "here_addr < _tstate->c_stack_top" failed: file "Python/ceval.c", line 468, function "_Py_InitializeRecursionLimits"
FAIL
test_setsigmask_wrong_type (test.test_posix.TestPosixSpawn.test_setsigmask_wrong_type) ... ok
test_specify_environment (test.test_posix.TestPosixSpawn.test_specify_environment) ... assertion "here_addr < _tstate->c_stack_top" failed: file "Python/ceval.c", line 468, function "_Py_InitializeRecursionLimits"
FAIL
test_bad_file_actions (test.test_posix.TestPosixSpawnP.test_bad_file_actions) ... ok
test_close_file (test.test_posix.TestPosixSpawnP.test_close_file) ... assertion "here_addr < _tstate->c_stack_top" failed: file "Python/ceval.c", line 468, function "_Py_InitializeRecursionLimits"
FAIL
test_dup2 (test.test_posix.TestPosixSpawnP.test_dup2) ... assertion "here_addr < _tstate->c_stack_top" failed: file "Python/ceval.c", line 468, function "_Py_InitializeRecursionLimits"
FAIL
test_empty_file_actions (test.test_posix.TestPosixSpawnP.test_empty_file_actions) ... assertion "here_addr < _tstate->c_stack_top" failed: file "Python/ceval.c", line 468, function "_Py_InitializeRecursionLimits"
FAIL
test_multiple_file_actions (test.test_posix.TestPosixSpawnP.test_multiple_file_actions) ... assertion "here_addr < _tstate->c_stack_top" failed: file "Python/ceval.c", line 468, function "_Py_InitializeRecursionLimits"
FAIL
test_no_such_executable (test.test_posix.TestPosixSpawnP.test_no_such_executable) ... ok
test_none_file_actions (test.test_posix.TestPosixSpawnP.test_none_file_actions) ... assertion "here_addr < _tstate->c_stack_top" failed: file "Python/ceval.c", line 468, function "_Py_InitializeRecursionLimits"
FAIL
test_open_file (test.test_posix.TestPosixSpawnP.test_open_file) ... assertion "here_addr < _tstate->c_stack_top" failed: file "Python/ceval.c", line 468, function "_Py_InitializeRecursionLimits"
FAIL
test_posix_spawnp (test.test_posix.TestPosixSpawnP.test_posix_spawnp) ... ok
test_resetids (test.test_posix.TestPosixSpawnP.test_resetids) ... assertion "_tstate->c_stack_soft_limit < here_addr" failed: file "Python/ceval.c", line 467, function "_Py_InitializeRecursionLimits"
FAIL
test_resetids_explicit_default (test.test_posix.TestPosixSpawnP.test_resetids_explicit_default) ... assertion "_tstate->c_stack_soft_limit < here_addr" failed: file "Python/ceval.c", line 467, function "_Py_InitializeRecursionLimits"
FAIL
test_returns_pid (test.test_posix.TestPosixSpawnP.test_returns_pid) ... assertion "_tstate->c_stack_soft_limit < here_addr" failed: file "Python/ceval.c", line 467, function "_Py_InitializeRecursionLimits"
FAIL
test_setpgroup (test.test_posix.TestPosixSpawnP.test_setpgroup) ... assertion "_tstate->c_stack_soft_limit < here_addr" failed: file "Python/ceval.c", line 467, function "_Py_InitializeRecursionLimits"
FAIL
test_setpgroup_wrong_type (test.test_posix.TestPosixSpawnP.test_setpgroup_wrong_type) ... ok
test_setscheduler_only_param (test.test_posix.TestPosixSpawnP.test_setscheduler_only_param) ... skipped 'bpo-34685: test can fail on BSD'
test_setscheduler_with_policy (test.test_posix.TestPosixSpawnP.test_setscheduler_with_policy) ... skipped 'bpo-34685: test can fail on BSD'
test_setsid (test.test_posix.TestPosixSpawnP.test_setsid) ... skipped "setsid is not supported: NotImplementedError('posix_spawnp: setsid unavailable on this platform')"
test_setsigdef (test.test_posix.TestPosixSpawnP.test_setsigdef) ... assertion "_tstate->c_stack_soft_limit < here_addr" failed: file "Python/ceval.c", line 467, function "_Py_InitializeRecursionLimits"
FAIL
test_setsigdef_wrong_type (test.test_posix.TestPosixSpawnP.test_setsigdef_wrong_type) ... ok
test_setsigmask (test.test_posix.TestPosixSpawnP.test_setsigmask) ... ok
test_setsigmask_wrong_type (test.test_posix.TestPosixSpawnP.test_setsigmask_wrong_type) ... ok
test_specify_environment (test.test_posix.TestPosixSpawnP.test_specify_environment) ... assertion "here_addr < _tstate->c_stack_top" failed: file "Python/ceval.c", line 468, function "_Py_InitializeRecursionLimits"
FAIL
======================================================================
FAIL: test_close_file (test.test_posix.TestPosixSpawn.test_close_file)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/home/blue/cpython/Lib/test/test_posix.py", line 2087, in test_close_file
support.wait_process(pid, exitcode=0)
~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
File "/home/blue/cpython/Lib/test/support/__init__.py", line 2241, in wait_process
raise AssertionError(f"process {pid} exited with code {exitcode2}, "
f"but exit code {exitcode} is expected")
AssertionError: process 14888 exited with code -6, but exit code 0 is expected
======================================================================
FAIL: test_multiple_file_actions (test.test_posix.TestPosixSpawn.test_multiple_file_actions)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/home/blue/cpython/Lib/test/test_posix.py", line 2021, in test_multiple_file_actions
support.wait_process(pid, exitcode=0)
~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
File "/home/blue/cpython/Lib/test/support/__init__.py", line 2241, in wait_process
raise AssertionError(f"process {pid} exited with code {exitcode2}, "
f"but exit code {exitcode} is expected")
AssertionError: process 4875 exited with code -6, but exit code 0 is expected
======================================================================
FAIL: test_open_file (test.test_posix.TestPosixSpawn.test_open_file)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/home/blue/cpython/Lib/test/test_posix.py", line 2068, in test_open_file
support.wait_process(pid, exitcode=0)
~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
File "/home/blue/cpython/Lib/test/support/__init__.py", line 2241, in wait_process
raise AssertionError(f"process {pid} exited with code {exitcode2}, "
f"but exit code {exitcode} is expected")
AssertionError: process 22411 exited with code -6, but exit code 0 is expected
======================================================================
FAIL: test_resetids (test.test_posix.TestPosixSpawn.test_resetids)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/home/blue/cpython/Lib/test/test_posix.py", line 1860, in test_resetids
support.wait_process(pid, exitcode=0)
~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
File "/home/blue/cpython/Lib/test/support/__init__.py", line 2241, in wait_process
raise AssertionError(f"process {pid} exited with code {exitcode2}, "
f"but exit code {exitcode} is expected")
AssertionError: process 6982 exited with code -6, but exit code 0 is expected
======================================================================
FAIL: test_resetids_explicit_default (test.test_posix.TestPosixSpawn.test_resetids_explicit_default)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/home/blue/cpython/Lib/test/test_posix.py", line 1851, in test_resetids_explicit_default
support.wait_process(pid, exitcode=0)
~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
File "/home/blue/cpython/Lib/test/support/__init__.py", line 2241, in wait_process
raise AssertionError(f"process {pid} exited with code {exitcode2}, "
f"but exit code {exitcode} is expected")
AssertionError: process 9121 exited with code -6, but exit code 0 is expected
======================================================================
FAIL: test_returns_pid (test.test_posix.TestPosixSpawn.test_returns_pid)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/home/blue/cpython/Lib/test/test_posix.py", line 1792, in test_returns_pid
support.wait_process(pid, exitcode=0)
~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
File "/home/blue/cpython/Lib/test/support/__init__.py", line 2241, in wait_process
raise AssertionError(f"process {pid} exited with code {exitcode2}, "
f"but exit code {exitcode} is expected")
AssertionError: process 20376 exited with code -6, but exit code 0 is expected
======================================================================
FAIL: test_setpgroup (test.test_posix.TestPosixSpawn.test_setpgroup)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/home/blue/cpython/Lib/test/test_posix.py", line 1869, in test_setpgroup
support.wait_process(pid, exitcode=0)
~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
File "/home/blue/cpython/Lib/test/support/__init__.py", line 2241, in wait_process
raise AssertionError(f"process {pid} exited with code {exitcode2}, "
f"but exit code {exitcode} is expected")
AssertionError: process 29677 exited with code -6, but exit code 0 is expected
======================================================================
FAIL: test_setsigmask (test.test_posix.TestPosixSpawn.test_setsigmask)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/home/blue/cpython/Lib/test/test_posix.py", line 1890, in test_setsigmask
support.wait_process(pid, exitcode=0)
~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
File "/home/blue/cpython/Lib/test/support/__init__.py", line 2241, in wait_process
raise AssertionError(f"process {pid} exited with code {exitcode2}, "
f"but exit code {exitcode} is expected")
AssertionError: process 29091 exited with code -6, but exit code 0 is expected
======================================================================
FAIL: test_specify_environment (test.test_posix.TestPosixSpawn.test_specify_environment)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/home/blue/cpython/Lib/test/test_posix.py", line 1822, in test_specify_environment
support.wait_process(pid, exitcode=0)
~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
File "/home/blue/cpython/Lib/test/support/__init__.py", line 2241, in wait_process
raise AssertionError(f"process {pid} exited with code {exitcode2}, "
f"but exit code {exitcode} is expected")
AssertionError: process 26401 exited with code -6, but exit code 0 is expected
======================================================================
FAIL: test_close_file (test.test_posix.TestPosixSpawnP.test_close_file)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/home/blue/cpython/Lib/test/test_posix.py", line 2087, in test_close_file
support.wait_process(pid, exitcode=0)
~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
File "/home/blue/cpython/Lib/test/support/__init__.py", line 2241, in wait_process
raise AssertionError(f"process {pid} exited with code {exitcode2}, "
f"but exit code {exitcode} is expected")
AssertionError: process 2519 exited with code -6, but exit code 0 is expected
======================================================================
FAIL: test_dup2 (test.test_posix.TestPosixSpawnP.test_dup2)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/home/blue/cpython/Lib/test/test_posix.py", line 2105, in test_dup2
support.wait_process(pid, exitcode=0)
~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
File "/home/blue/cpython/Lib/test/support/__init__.py", line 2241, in wait_process
raise AssertionError(f"process {pid} exited with code {exitcode2}, "
f"but exit code {exitcode} is expected")
AssertionError: process 10663 exited with code -6, but exit code 0 is expected
======================================================================
FAIL: test_empty_file_actions (test.test_posix.TestPosixSpawnP.test_empty_file_actions)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/home/blue/cpython/Lib/test/test_posix.py", line 1842, in test_empty_file_actions
support.wait_process(pid, exitcode=0)
~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
File "/home/blue/cpython/Lib/test/support/__init__.py", line 2241, in wait_process
raise AssertionError(f"process {pid} exited with code {exitcode2}, "
f"but exit code {exitcode} is expected")
AssertionError: process 29538 exited with code -6, but exit code 0 is expected
======================================================================
FAIL: test_multiple_file_actions (test.test_posix.TestPosixSpawnP.test_multiple_file_actions)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/home/blue/cpython/Lib/test/test_posix.py", line 2021, in test_multiple_file_actions
support.wait_process(pid, exitcode=0)
~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
File "/home/blue/cpython/Lib/test/support/__init__.py", line 2241, in wait_process
raise AssertionError(f"process {pid} exited with code {exitcode2}, "
f"but exit code {exitcode} is expected")
AssertionError: process 13306 exited with code -6, but exit code 0 is expected
======================================================================
FAIL: test_none_file_actions (test.test_posix.TestPosixSpawnP.test_none_file_actions)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/home/blue/cpython/Lib/test/test_posix.py", line 1833, in test_none_file_actions
support.wait_process(pid, exitcode=0)
~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
File "/home/blue/cpython/Lib/test/support/__init__.py", line 2241, in wait_process
raise AssertionError(f"process {pid} exited with code {exitcode2}, "
f"but exit code {exitcode} is expected")
AssertionError: process 4660 exited with code -6, but exit code 0 is expected
======================================================================
FAIL: test_open_file (test.test_posix.TestPosixSpawnP.test_open_file)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/home/blue/cpython/Lib/test/test_posix.py", line 2068, in test_open_file
support.wait_process(pid, exitcode=0)
~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
File "/home/blue/cpython/Lib/test/support/__init__.py", line 2241, in wait_process
raise AssertionError(f"process {pid} exited with code {exitcode2}, "
f"but exit code {exitcode} is expected")
AssertionError: process 15283 exited with code -6, but exit code 0 is expected
======================================================================
FAIL: test_resetids (test.test_posix.TestPosixSpawnP.test_resetids)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/home/blue/cpython/Lib/test/test_posix.py", line 1860, in test_resetids
support.wait_process(pid, exitcode=0)
~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
File "/home/blue/cpython/Lib/test/support/__init__.py", line 2241, in wait_process
raise AssertionError(f"process {pid} exited with code {exitcode2}, "
f"but exit code {exitcode} is expected")
AssertionError: process 27835 exited with code -6, but exit code 0 is expected
======================================================================
FAIL: test_resetids_explicit_default (test.test_posix.TestPosixSpawnP.test_resetids_explicit_default)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/home/blue/cpython/Lib/test/test_posix.py", line 1851, in test_resetids_explicit_default
support.wait_process(pid, exitcode=0)
~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
File "/home/blue/cpython/Lib/test/support/__init__.py", line 2241, in wait_process
raise AssertionError(f"process {pid} exited with code {exitcode2}, "
f"but exit code {exitcode} is expected")
AssertionError: process 12737 exited with code -6, but exit code 0 is expected
======================================================================
FAIL: test_returns_pid (test.test_posix.TestPosixSpawnP.test_returns_pid)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/home/blue/cpython/Lib/test/test_posix.py", line 1792, in test_returns_pid
support.wait_process(pid, exitcode=0)
~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
File "/home/blue/cpython/Lib/test/support/__init__.py", line 2241, in wait_process
raise AssertionError(f"process {pid} exited with code {exitcode2}, "
f"but exit code {exitcode} is expected")
AssertionError: process 1830 exited with code -6, but exit code 0 is expected
======================================================================
FAIL: test_setpgroup (test.test_posix.TestPosixSpawnP.test_setpgroup)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/home/blue/cpython/Lib/test/test_posix.py", line 1869, in test_setpgroup
support.wait_process(pid, exitcode=0)
~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
File "/home/blue/cpython/Lib/test/support/__init__.py", line 2241, in wait_process
raise AssertionError(f"process {pid} exited with code {exitcode2}, "
f"but exit code {exitcode} is expected")
AssertionError: process 24458 exited with code -6, but exit code 0 is expected
======================================================================
FAIL: test_setsigdef (test.test_posix.TestPosixSpawnP.test_setsigdef)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/home/blue/cpython/Lib/test/test_posix.py", line 1955, in test_setsigdef
support.wait_process(pid, exitcode=-signal.SIGUSR1)
~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/blue/cpython/Lib/test/support/__init__.py", line 2241, in wait_process
raise AssertionError(f"process {pid} exited with code {exitcode2}, "
f"but exit code {exitcode} is expected")
AssertionError: process 11736 exited with code -6, but exit code -30 is expected
======================================================================
FAIL: test_specify_environment (test.test_posix.TestPosixSpawnP.test_specify_environment)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/home/blue/cpython/Lib/test/test_posix.py", line 1822, in test_specify_environment
support.wait_process(pid, exitcode=0)
~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
File "/home/blue/cpython/Lib/test/support/__init__.py", line 2241, in wait_process
raise AssertionError(f"process {pid} exited with code {exitcode2}, "
f"but exit code {exitcode} is expected")
AssertionError: process 28506 exited with code -6, but exit code 0 is expected
----------------------------------------------------------------------
Ran 43 tests in 2.545s
FAILED (failures=21, skipped=6)
Warning -- files was modified by test_posix
Warning -- Before: []
Warning -- After: ['python.core']
test test_posix failed
0:00:02 load avg: 0.17 [1/1/1] test_posix failed (21 failures)
== Tests result: FAILURE ==
1 test failed:
test_posix
Total duration: 2.7 sec
Total tests: run=43 (filtered) failures=21 skipped=6
Total test files: run=1/1 (filtered) failed=1
Result: FAILURE
```
### CPython versions tested on:
CPython main branch, 3.14
### Operating systems tested on:
Other
<!-- gh-linked-prs -->
### Linked PRs
* gh-131625
<!-- /gh-linked-prs -->
| c7f6535e4a3b447fbd67bf98eea82fd243e780be | 00cf5eacc52d4790c23a24c835fb6b048cb27d8c |
python/cpython | python__cpython-131588 | # Use stackrefs in `_PyType_LookupRef` and related functions
# Feature or enhancement
The [`object_lookup_special`](https://github.com/python/cpython/blob/56d0f9af147b2280ea0af7af5e57df1a01271991/Tools/ftscalingbench/ftscalingbench.py#L61-L66) microbenchmark in [`Tools/ftscalingbench/ftscalingbench.py`](https://github.com/python/cpython/blob/56d0f9af147b2280ea0af7af5e57df1a01271991/Tools/ftscalingbench/ftscalingbench.py) currently doesn't scale well and is indicative of a broader FT performance issue that we should fix. The benchmark just calls `round()` from multiple threads concurrently:
https://github.com/python/cpython/blob/56d0f9af147b2280ea0af7af5e57df1a01271991/Tools/ftscalingbench/ftscalingbench.py#L62-L66
The issue is that `round()` calls `_PyObject_LookupSpecial(number, &_Py_ID(__round__))`, which increments the reference count of the returned function (i.e., of `float.round`). The underlying function supports deferred reference counting, but `_PyObject_LookupSpecial` and `_PyType_LookupRef` do not take advantage of it.
For the FT build, we also need some extra support in order to safely use `_PyStackRef` in `builtin_round_impl`, because it's important that all `_PyStackRef`s are visible to the GC. To support this, we can add a singly linked list of active `_PyStackRef`s to `_PyThreadStateImpl`.
The `struct _PyCStackRef` implements this linked list pointer + a `_PyStackRef`. In the GIL-enabled build, there's no linked list and it's essentially the same as `_PyStackRef`.
```c
// A stackref that can be stored in a regular C local variable and be visible
// to the GC in the free threading build.
// Used in combination with _PyThreadState_PushCStackRef().
typedef struct _PyCStackRef {
_PyStackRef ref;
#ifdef Py_GIL_DISABLED
struct _PyCStackRef *next;
#endif
} _PyCStackRef;
struct _PyThreadStateImpl {
...
// Linked list (stack) of active _PyCStackRef
struct _PyCStackRef *c_stack_refs;
...
}
static inline void _PyThreadState_PushCStackRef(PyThreadState *tstate, _PyCStackRef *ref) { ... }
static inline void _PyThreadState_PopCStackRef(PyThreadState *tstate, _PyCStackRef *ref) { ... }
```
cc @mpage @markshannon
<!-- gh-linked-prs -->
### Linked PRs
* gh-131588
* gh-131851
<!-- /gh-linked-prs -->
| 67fbfb42bd5dfe861d0c58d9e6c48d8eef033d24 | 3d4ac1a2c2b610f35a9e164878d67185e4a3546f |
python/cpython | python__cpython-131567 | # `tracemalloc.start()` and `tracemalloc.stop()` race condition
This occurs in both the GIL-enabled build and the free threaded build. It only happens in release builds, because `test_tracemalloc.test_tracemalloc_track_race` is skipped in debug builds.
Tracemalloc modifies the global "raw" memory allocator. The modification happens under a lock, but other calls to `PyMem_RawMalloc` and `PyMem_RawFree` can occur without any locking and without holding the GIL.
I think the "fix" is to just skip the test when running under TSAN:
* I don't think there's any better fix -- we definitely don't want `PyMem_RawMalloc()` to require locks
* The race is relatively "benign" -- I don't think it'll cause any crashes in practice
* Tracemalloc is primarily a debugging tool
Here's an example stack trace:
```
WARNING: ThreadSanitizer: data race (pid=3203004)
Write of size 8 at 0x555555cee008 by main thread:
#0 __tsan_memcpy <null> (python+0xdff2e) (BuildId: 3f2abce6d83666bdd9fffb9ab44aef8621970a54)
#1 set_allocator_unlocked /raid/sgross/cpython/Objects/obmalloc.c (python+0x29d9aa) (BuildId: 3f2abce6d83666bdd9fffb9ab44aef8621970a54)
#2 PyMem_SetAllocator /raid/sgross/cpython/Objects/obmalloc.c:899:5 (python+0x29d9aa)
#3 _PyTraceMalloc_Start /raid/sgross/cpython/Python/tracemalloc.c:825:5 (python+0x49bdb4) (BuildId: 3f2abce6d83666bdd9fffb9ab44aef8621970a54)
#4 _tracemalloc_start_impl /raid/sgross/cpython/./Modules/_tracemalloc.c:99:9 (python+0x4d5db8) (BuildId: 3f2abce6d83666bdd9fffb9ab44aef8621970a54)
#5 _tracemalloc_start /raid/sgross/cpython/./Modules/clinic/_tracemalloc.c.h:111:20 (python+0x4d5db8)
...
Previous read of size 8 at 0x555555cee008 by thread T1:
#0 PyMem_RawFree /raid/sgross/cpython/Objects/obmalloc.c:989:32 (python+0x29dda7) (BuildId: 3f2abce6d83666bdd9fffb9ab44aef8621970a54)
#1 pythread_wrapper /raid/sgross/cpython/Python/thread_pthread.h:240:5 (python+0x498861) (BuildId: 3f2abce6d83666bdd9fffb9ab44aef8621970a54)
```
https://github.com/python/cpython/blob/b92ee14b80cc8898f799aa8120ec99dd0c882339/Python/tracemalloc.c#L825
https://github.com/python/cpython/blob/b92ee14b80cc8898f799aa8120ec99dd0c882339/Python/thread_pthread.h#L233-L244
See also:
* https://github.com/python/cpython/issues/128679
* https://github.com/python/cpython/issues/111924
<!-- gh-linked-prs -->
### Linked PRs
* gh-131567
<!-- /gh-linked-prs -->
| 18249d938335312d618a3962ec7590bea709d58e | 996246994341c91308364f3ed018cf9b7fec9bc8 |
python/cpython | python__cpython-132015 | # `PyType_AddWatcher` and friends are not thread safe in free-threading
`PyType_AddWatcher` and `PyType_ClearWatcher` are not thread safe as it modifies the interp's type watchers non-atomically.
`PyType_AddWatcher`:
https://github.com/python/cpython/blob/d3f6063af18a008e316e4342492e877ee51463e2/Objects/typeobject.c#L949-L963
`PyType_ClearWatcher`:
https://github.com/python/cpython/blob/d3f6063af18a008e316e4342492e877ee51463e2/Objects/typeobject.c#L980-L989
I think adding and removing of type watchers is a rare event so maybe instead of adding atomics or locks it would be better to change them to use stop-the-world pause event.
<!-- gh-linked-prs -->
### Linked PRs
* gh-132015
* gh-132019
<!-- /gh-linked-prs -->
| 25275bda790e8a689092e83855d6d0574f26061b | e8085319eb20aca7c0f8507aece505461db4f578 |
python/cpython | python__cpython-131551 | # html.parser produces different output than documented
When parsing >>> using html.parser, the actual output differs from the expected behavior as documented.
Run the following code:
```python
from html.parser import HTMLParser
from html.entities import name2codepoint
class MyHTMLParser(HTMLParser):
def handle_starttag(self, tag, attrs):
print("Start tag:", tag)
for attr in attrs:
print(" attr:", attr)
def handle_endtag(self, tag):
print("End tag :", tag)
def handle_data(self, data):
print("Data :", data)
def handle_comment(self, data):
print("Comment :", data)
def handle_entityref(self, name):
c = chr(name2codepoint[name])
print("Named ent:", c)
def handle_charref(self, name):
if name.startswith('x'):
c = chr(int(name[1:], 16))
else:
c = chr(int(name))
print("Num ent :", c)
def handle_decl(self, data):
print("Decl :", data)
parser = MyHTMLParser()
parser.feed('>>>')
```
According to the documentation, the expected output should be:
```
Named ent: >
Num ent : >
Num ent : >
```
The actual output is:
```
Data : >>>
```
<!-- gh-linked-prs -->
### Linked PRs
* gh-131551
* gh-133587
* gh-133589
<!-- /gh-linked-prs -->
| ee76e36d76a0e6916c0afc41228b043ab5174685 | 77b14a6d58e527f915966446eb0866652a46feb5 |
python/cpython | python__cpython-131532 | # Android cibuildwheel support
# Feature or enhancement
### Proposal:
This issue will link together a number of PRs required to support running cibuildwheel for Android. Specifically, we need the following features:
* Produce a release package containing a pre-compiled Python for Android.
* Enable the testbed app to run arbitrary tests on third-party packages.
### Has this already been discussed elsewhere?
This is a minor feature, which does not need previous discussion elsewhere
<!-- gh-linked-prs -->
### Linked PRs
* gh-131532
* gh-131960
* gh-132870
* gh-133193
* gh-133236
* gh-135158
* gh-135164
* gh-136845
* gh-136962
* gh-136963
<!-- /gh-linked-prs -->
| fe5c4c53e7bc6d780686013eaab17de2237b2176 | 45a3ab5a81769eadd94da3e26eb9bb2f3ae80fb1 |
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