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-117681 | # Need a detailed explanation of the below added line into documentation
consider this line "A class in an [except] clause is compatible with an exception if it is the same class or a base class thereof (but not the other way around — an except clause listing a derived class is not compatible with a base class)" which... | a05068db0cb43337d20a936d919b9d88c35d9818 | ca7591577926d13083291c3caef408116429f539 |
python/cpython | python__cpython-117595 | # Define test_search_anchor_at_beginning as CPU-heavy tests.
Currently test_search_anchor_at_beginning requires to be completed in an absolute time.
This can be flaky at low CPU environment or slow alternative implementation like RustPython.
I would like to suggest adding `@support.requires_resource('cpu')` to the... | 784623c63c45a4d13dfb04318c39fdb1ab790218 | fd3679025d9d0da7eb11f2810ed270c214926992 |
python/cpython | python__cpython-117589 | # Speed up `pathlib.Path.glob()` by working with strings internally
`pathlib.Path.glob()` currently generates `Path` objects for intermediate paths that might never be yielded to the user, which is slow and unnecessary. For example, a pattern like `**/*.mp3` is evaluated by creating a `Path` object for every directory... | 0cc71bde001950d3634c235e2b0d24cda6ce7dce | 6258844c27e3b5a43816e7c559089a5fe0a47123 |
python/cpython | python__cpython-117585 | # Raise TypeError for non-paths in `posixpath.relpath()`
# Bug report
### Bug description:
```python
>>> import posixpath
>>> posixpath.relpath(None)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "<frozen posixpath>", line 509, in relpath
ValueError: no path specified
```
Expected:... | 733e56ef9656dd79055acc2a3cecaf6054a45b6c | 62aeb0ee69b06091396398de56dcb755ca3b9dc9 |
python/cpython | python__cpython-117661 | # PyType_GetModuleByDef family for binary functions performance
# Feature or enhancement
### Proposal:
When implementing an extension module with a module state enabled,
binary tp slot functions (e.g. `nb_add`) need two `PyType_GetModuleByDef()` to be used like the following to compare the given types with a he... | 2c451489122d539080c8d674b391dedc1dedcb53 | f180b31e7629d36265fa36f1560365358b4fd47c |
python/cpython | python__cpython-117567 | # ipaddress.IPv6Address.is_loopback broken for IPv4-mapped addresses
# Bug report
### Bug description:
While properties like `is_private` account for IPv4-mapped IPv6 addresses, such as for example:
```python
>>> ipaddress.ip_address("192.168.0.1").is_private
True
>>> ipaddress.ip_address("::ffff:192.168.0.1").is_p... | fb7f79b4da35b75cdc82ff3cf20816d2bf93d416 | eb20a7d12c4b2ab7931074843f8602a48b5b07bd |
python/cpython | python__cpython-117553 | # Avoid indefinite hang in `test.test_logging.HTTPHandlerTest.test_output` if request fails
This unit test logs to an HTTP backend. If for some reason the request fails, then the `self.handled.wait()` will bock indefinitely. In practice that means until the test runner times out, which can be after over an hour.
We... | 59864edd572b5c0cc3be58087a9ea3a700226146 | ca62ffd1a5ef41401abceddfd171c76c68825a35 |
python/cpython | python__cpython-117551 | # New tier 2 counters break some C extensions due to order of field mismatch
# Bug report
### Bug description:
@tacaswell reported [here](https://github.com/python/cpython/pull/117144#issuecomment-2037824706):
#177144 appears to have broken building scipy
```
FAILED: scipy/special/_specfun.cpython-313-x86_64-linux... | b5e60918afa53dfd59ad26a9f4b5207a9b304bc1 | 63998a1347f3970ea4c69c881db69fc72b16a54c |
python/cpython | python__cpython-117548 | # mimalloc compile error on OpenBSD
# Bug report
```
In file included from Objects/mimalloc/prim/prim.c:22,
from Objects/mimalloc/static.c:37,
from Objects/obmalloc.c:22:
Objects/mimalloc/prim/unix/prim.c: In function 'mi_prim_open':
Objects/mimalloc/prim/unix/prim.c:67:10: error: im... | 2067da25796ea3254d0edf61a39bcc0326c4f71d | df7317904849a41d51db39d92c5d431a18e22637 |
python/cpython | python__cpython-117568 | # `os.path.realpath('loop/../link')` does not resolve link
If `os.path.realpath()` encounters a symlink loop on posix, it prematurely stops querying paths and resolving symlink targets. This differs from coreutils `realpath`:
```shell
$ cd /tmp
$ ln -s loop loop
$ ln -s target link
$ realpath -m loop/../link
/... | 630df37116b1c5b381984c547ef9d23792ceb464 | 6bc0b33a91713ee62fd1860d28b19cb620c45971 |
python/cpython | python__cpython-117543 | # ./Modules/_datetimemodule.c:290: days_before_year: Assertion `year >= 1' failed.
# Crash report
### What happened?
Python terminates with core dumped on the following test:
```python
import datetime
y = datetime.datetime.fromisoformat('0000W25')
print(y)
```
The test result:
```
python: ./Modules/_da... | d5f1139c79525b4e7e4e8ad8c3e5fb831bbc3f28 | a25c02eaf01abc7ca79efdbcda986b9cc2787b6c |
python/cpython | python__cpython-117532 | # Queue non-immediate shutdown doesn't unblock getters
# Bug report
### Bug description:
Caused by #104750
```python
import queue
import threading
q = queue.Queue()
t = threading.Thread(target=q.get)
t.start()
q.shutdown()
t.join(timeout=10.0)
assert not t.is_alive() # raises AssertionError
```
... | 6bc0b33a91713ee62fd1860d28b19cb620c45971 | dfcae4379f2cc4d352a180f9fef2381570aa9bcb |
python/cpython | python__cpython-117522 | # Improve typing.TypeGuard docstring
The [current docstring](https://github.com/python/cpython/blob/1c434688866db79082def4f9ef572b85d85908c8/Lib/typing.py#L844) for `typing.TypeGuard` includes a single example, but that example does not use `TypeGuard`, and in fact demonstrates behavior that differs from that of `Type... | b32789ccb91bbe43e88193f68b1364a8da6d9866 | 3f5bcc86d0764b691087e8412941e947554c93fd |
python/cpython | python__cpython-117517 | # Implement PEP-742
# Feature or enhancement
### Proposal:
PEP-742 was just accepted. Let's implement it.
### Has this already been discussed elsewhere?
I have already discussed this feature proposal on Discourse
### Links to previous discussion of this feature:
PEP-742
<!-- gh-linked-prs -->
### Linked PRs
* g... | f2132fcd2a6da7b2b86e80189fa009ce1d2c753b | 57183241af76bf33e44d886a733f799d20fc680c |
python/cpython | python__cpython-118514 | # Add `sys._is_gil_enabled()`
# Feature or enhancement
I propose adding a new function to the `sys` module to check if the GIL is current enabled:
```
sys._is_gil_enabled() -> bool
Return True if the GIL is currently enabled and False if the GIL is currently disabled.
```
The function would always return... | 2dae505e87e3815f087d4b07a71bb2c5cce22304 | 24e643d4ef024a3561c927dc07c59c435bb27bcc |
python/cpython | python__cpython-117527 | # JIT compiler doesn't support 64-bit operands on 32-bit sytems
# Bug report
### Bug description:
Tracking issue for @brandtbucher , and for me to write TODOs in code.
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
_No response_
<!-- gh-linked-prs -->
### Linked PRs
* gh-11... | 62aeb0ee69b06091396398de56dcb755ca3b9dc9 | df4d84c3cdca572f1be8f5dc5ef8ead5351b51fb |
python/cpython | python__cpython-117731 | # Make some `PyMutex` functions public
# Feature or enhancement
### Overview
The `PyMutex` APIs are currently internal-only in `pycore_lock.h`. This proposes making the type and two functions public in as part of the general, non-limited API in `Include/cpython/lock.h`.
The APIs to be included in the public h... | 3af7263037de1d0ef63b070fc7bfc2cf042eaebe | e8e151d4715839f785ff853c77594d7302b40266 |
python/cpython | python__cpython-118257 | # [BUG] Newest 3.12 install on windows misses pip
# Bug report
### Bug description:
I recently did a fresh python installation, from python.org (https://www.python.org/ftp/python/3.12.2/python-3.12.2-amd64.exe)
I did installed it on an "uncommon" directory (`D:\EDM115\Programmes\Python312\`), but this had nev... | c9073eb1a99606df1efeb8959e9f11a8ebc23ae2 | baf347d91643a83483bae110092750d39471e0c2 |
python/cpython | python__cpython-117504 | # Support non-ASCII user name in posixpath.expanduser()
# Bug report
Currently `posixpath.expanduser()` only supports ASCII user names in bytes paths. It supports non-ASCII user names in string paths. `ntpath.expanduser()` also "supports" non-ASCII user names (although this support is only a guess, but non-ASCII user... | 51132da0c4dac13500d9bb86b2fdad42091d3fd9 | 44890b209ebe2efaf4f57eed04967948547cfa3b |
python/cpython | python__cpython-117496 | # Extract the instruction sequence data structure into its own file and add a Python interface
The Instruction Sequence data structure used by the compiler/assembler should be extracted into its own file, so that it can be properly abstracted. It should get a convenient Python interface so that it can be directly ac... | 04697bcfaf5dd34c9312f4f405083b6d33b3511f | 060a96f1a9a901b01ed304aa82b886d248ca1cb6 |
python/cpython | python__cpython-117678 | # typing.NoReturn and typing.Never are somewhat unclear
# Documentation
In [the typing docs](https://docs.python.org/3/library/typing.html), [typing.Never](https://docs.python.org/3/library/typing.html#typing.Never) and [typing.NoReturn](https://docs.python.org/3/library/typing.html#typing.NoReturn) are somewhat un... | 852263e1086748492602a90347ecc0a3925e1dda | f201628073f22a785a096eccb010e2f78601b60f |
python/cpython | python__cpython-118212 | # ast: Improve behavior for user-defined classes
From @encukou:
Thanks for the fix. Since it's a blocker I merged it, even though I'd have one more review comment:
It would be good to add this to the new test, and improve the behaviour (the error is quite opaque):
```python
class MoreFiel... | e0422198fb4de0a5d81edd3de0d0ed32c119e9bb | 040571f258d13a807f5c8e4ce0a182d5f9a2e81b |
python/cpython | python__cpython-117484 | # `test_ssl.test_wrong_cert_tls13` should accept "Broken pipe" as valid error
The `test_wrong_cert_tls13` unit tests checks the behavior when the server rejects the client's ceritficate. On macOS, this can sometimes lead to a "Broken pipe" on the client instead of a "Connection reset by peer" when the connection is cl... | a214f55b274df9782e78e99516a372e0b800162a | 33ee5cb3e92ea8798e7f1a2f3a13b92b39cee6d6 |
python/cpython | python__cpython-117479 | # Add `@support.requires_gil_enabled` decorator to mark tests that require the GIL
# Feature or enhancement
@Eclips4 [points out](https://github.com/python/cpython/pull/117475#discussion_r1548349232) that it might be time to add a dedicated decorator for marking tests that require the GIL:
He writes:
> I think this... | 42205143f8b3211d1392f1d9f2cf6717bdaa5b47 | de5ca0bf71760aad8f2b8449c89242498bff64c8 |
python/cpython | python__cpython-117475 | # Skip `test_gdb.test_backtrace.test_threads` in free-threaded build
# Feature or enhancement
The `test_threads` test checks that `py-bt` reports when a thread is waiting on the GIL. In the free-threaded build, the GIL will typically be disabled. I think we should just skip the test in that case.
https://github.com/... | 63998a1347f3970ea4c69c881db69fc72b16a54c | 434bc593df4c0274b8afd3c1dcdc9234f469d9bf |
python/cpython | python__cpython-117510 | # mailbox.mbox.flush() loses mailbox owner
In the `flush()` method for mbox mailboxes, after writing the new file, it correctly copies the file modes from the old file to the new one:
https://github.com/python/cpython/blob/027fa2eccf39ddccdf7b416d16601277a7112054/Lib/mailbox.py#L753-L755
However, it doesn't copy t... | 3f5bcc86d0764b691087e8412941e947554c93fd | dc5471404489da53e6d591b52ba8886897ed3743 |
python/cpython | python__cpython-117460 | # asyncio.run_coroutine_threadsafe drops specified exceptions' traceback
# Bug report
### Bug description:
```python
import asyncio
import threading
import traceback
async def raiseme():
raise ValueError(42)
async def raiseme2():
raise asyncio.TimeoutError()
loop = asyncio.new_event_loop()
asyncio.set_even... | 85843348c5f0b8c2f973e8bc586475e69af19cd2 | b4fe02f595fcb9f78261920a268ef614821ec195 |
python/cpython | python__cpython-117477 | # pystats: Uop "miss" counts are incorrect
# Bug report
### Bug description:
After the trace stitching, all uop miss counts are attributed to either `_DEOPT` or `_SIDE_EXIT`. These should instead by counted for the uop immediately prior.
### CPython versions tested on:
CPython main branch
### Operating systems ... | 757b62493b47c6d2f07fc8ecaa2278a7c8a3bea6 | 9c1dfe21fdaf2d93c3e1d1bba1cbe240e35ff35d |
python/cpython | python__cpython-118482 | # A loop split between two hot executors never calls CHECK_EVAL_BREAKER()
When a tight for loop without calls is turned into two traces that transfer directly to each other, it seems that `CHECK_EVAL_BREAKER()` is never called, and the loop won't be interruptible.
See https://github.com/faster-cpython/ideas/issues/... | 67bba9dd0f5b9c2d24c2bc6d239c4502040484af | f8e088df2a87f613ee23ea4f6787f87d9196b9de |
python/cpython | python__cpython-117441 | # Make syslog thread-safe in `--disable-gil` builds
# Feature or enhancement
The `syslog` module has two mutable global variables:
https://github.com/python/cpython/blob/9dae05ee59eeba0e67af2a46f2a2907c9f8d7e4a/Modules/syslogmodule.c#L71-L72
We need to protect access to these variables in the `--disable-gil` builds... | 954d616b4c8cd091214aa3b8ea886bcf9067243a | e569f9132b5bdc1c103116a020e19e3ccc20cf34 |
python/cpython | python__cpython-117469 | # Make refleak checking thread-safe without the GIL
# Feature or enhancement
The refleak checking relies on per-interpreter "total" refcount tracking. It uses non-atomic operations and is not thread-safe without the GIL.
In the free-threaded build, I think we should primarily track counts in `PyThreadState` and occa... | 1a6594f66166206b08f24c3ba633c85f86f99a56 | 2067da25796ea3254d0edf61a39bcc0326c4f71d |
python/cpython | python__cpython-117436 | # Make multiprocessing `SemLock` thread-safe in the free-threaded build
# Feature or enhancement
The multiprocessing `SemLock` code maintains an internal `count` field. When operating as a recursive mutex, `count` is the number of times the thread has acquired the mutex (i.e., 0, 1, .. N). When operating as a semapho... | de5ca0bf71760aad8f2b8449c89242498bff64c8 | 04697bcfaf5dd34c9312f4f405083b6d33b3511f |
python/cpython | python__cpython-117412 | # PyFutureFeatures should not be public
``PyFutureFeatures`` is defined in Include/cpython/compile.h. If it not used in anything which is user-facing, so there is no reason for anyone to use it. It should be private.
<!-- gh-linked-prs -->
### Linked PRs
* gh-117412
<!-- /gh-linked-prs -->
| 1d5479b236e9a66dd32a24eff6fb83e3242b999d | 5fd1897ec51cb64ef7990ada538fcd8d9ca1f74b |
python/cpython | python__cpython-117390 | # `test_compileall.EncodingTest` is broken
# Bug report
This test was added a long time ago as a part of https://github.com/python/cpython/commit/4b00307425bb3219f269a13ba5a9526903d21ce8
But, it is broken right now for several reasons:
1. It does not assert anything at all, so it passes when it really should no... | 44f67916dafd3583f482e6d001766581a1a734fc | 5092ea238e28c7d099c662d416b2a96fdbea4790 |
python/cpython | python__cpython-117386 | # sys.settrace set some events without callbacks
# Bug report
### Bug description:
`sys.settrace` sets `PY_MONITORING_EVENT_BRANCH` and `PY_MONITORING_EVENT_EXCEPTION_HANDLED` monitoring events but does not have any registered callbacks. Those two events should not generate any legacy trace events (and `sys.settrace... | 0f998613324bcb6fa1cd9a3a2fc7e46f67358df7 | a5eeb832c2bbbd6ce1e9d545a553de926af468d5 |
python/cpython | python__cpython-117382 | # Fix error message for `ntpath.commonpath`
# Bug report
### Bug description:
```python
>>> import ntpath
>>> ntpath.commonpath(["/foo", "foo"])
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "<frozen ntpath>", line 808, in commonpath
ValueError: Can't mix absolute and rela... | 2ec6bb4111d2c03c1cac02b27c74beee7e5a2a05 | a214f55b274df9782e78e99516a372e0b800162a |
python/cpython | python__cpython-126538 | # forkserver.set_forkserver_preload() silent preload import failures when sys.path is required
# Bug report
### Bug description:
Bug in `def main()`: https://github.com/python/cpython/blob/main/Lib/multiprocessing/forkserver.py#L167
The param `sys_path` is ignored. Result: `ModuleNotFoundError` for preloaded module... | 9d08423b6e0fa89ce9cfea08e580ed72e5db8c70 | 266328552e922fd9030cd699e10a25f03a67c8ba |
python/cpython | python__cpython-117696 | # Implement deferred reference counting in free-threaded builds
# Feature or enhancement
@Fidget-Spinner has started implementing tagged pointers in the evaluation stack in https://github.com/python/cpython/issues/117139.
There are two other pieces needed for deferred reference counting support in the free-threa... | 4ad8f090cce03c24fd4279ec8198a099b2d0cf97 | c50cb6dd09d5a1bfdd1b896cc31ccdc96c72e561 |
python/cpython | python__cpython-117679 | # Confusing wording in `os.path.lexists` docs
os.path.lexists(path) https://docs.python.org/3/library/os.path.html#os.path.lexists
Return True if path refers to an existing path. Returns **True** for broken symbolic links. Equivalent to [exists()](https://docs.python.org/3/library/os.path.html#os.path.exists... | 73906d5c908c1e0b73c5436faeff7d93698fc074 | a05068db0cb43337d20a936d919b9d88c35d9818 |
python/cpython | python__cpython-117350 | # Speed up `os.path`
# Feature or enhancement
### Proposal:
There are some minor optimisations possible in `os.path`, including some fast returns.
### Has this already been discussed elsewhere?
This is a minor feature, which does not need previous discussion elsewhere
### Links to previous discussion of... | cae4cdd07ddfcd8bcc05d683bac53815391c9907 | 8eda146e87d5531c9d2bc62fd1fea3bd3163f9b1 |
python/cpython | python__cpython-117372 | # configparser.RawConfigParser._read is unmanageably complex
From the review:
> This function is already unmanageably complex (and complexity checks [disabled in the backport](https://github.com/jaraco/configparser/blob/b244f597d871a83986d5146ab49a4e7c19f8b528/backports/configparser/__init__.py#L1039)). Adding this... | 019143fecbfc26e69800d28d2a9e3392a051780b | 01bd74eadbc4ff839d39762fae6366f50c1e116e |
python/cpython | python__cpython-117363 | # `test_clinic` fails with the `--forever` argument
# Bug report
### Bug description:
```python
./python -m test -q test_clinic --forever
Using random seed: 2016588083
0:00:00 load avg: 16.10 Run tests sequentially
test test_clinic failed -- Traceback (most recent call last):
File "/home/eclips4/CLionProjects/cpyt... | 35b6c4a4da201a947b2ceb96ae4c0d83d4d2df4f | 7e2fef865899837c47e91ef0180fa59eb03e840b |
python/cpython | python__cpython-117343 | # dis [docs]: LOAD_SUPER_ATTR should push NULL instead of None if the lowest bit is set
# Documentation
The docs for LOAD_SUPER_ATTR currently states
> The low bit of namei signals to attempt a method load, as with [LOAD_ATTR](https://docs.python.org/3/library/dis.html#opcode-LOAD_ATTR), which results in pushing... | a17f313e3958e825db9a83594c8471a984316536 | 26d328b2ba26374fb8d9ffe8215ecef7c5e3f7a2 |
python/cpython | python__cpython-117371 | # Deprecate glob.glob0() and glob.glob1()
Undocumented functions `glob0()` and `glob1()` were just helpers for `glob.iglob()`. They are not underscored because the `glob` module has `__all__`. They survived numerous refactorings only because they were used in the `msilib` module and some MSI related scripts. But the `... | fc8007ee3635db6ab73e132ebff987c910b6d538 | c741ad3537193c63fe697a8f0316aecd45eeb9ba |
python/cpython | python__cpython-117336 | # Handle non-iterables for `ntpath.commonpath`
# Bug report
### Bug description:
```python
>>> import ntpath
>>> ntpath.commonpath(None)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "<frozen ntpath>", line 826, in commonpath
ValueError: commonpath() arg is an empty sequence
```
Ex... | 14f1ca7d5363386163839b31ce987423daecc3de | 18cf239e39e25e6cef50ecbb7f197a82f8920ff5 |
python/cpython | python__cpython-117330 | # Make `cell` thread-safe in the free-threaded build
# Feature or enhancement
From the [docs](): “Cell” objects are used to implement variables referenced by multiple scopes.
Currently, modifying cell contents concurrently with other accesses is not thread-safe without the GIL. This shows up, for example, in `test_s... | 19c1dd60c5b53fb0533610ad139ef591294f26e8 | 397d88db5e9ab2a43de3fdf5f8b973a949edc405 |
python/cpython | python__cpython-117369 | # email.policy.EmailPolicy._fold() breaking multi-byte Unicode sequences
https://github.com/python/cpython/blob/eefff682f09394fe4f18b7d7c6ac4c635caadd02/Lib/email/policy.py#L208
I think it's problematic that the method `email.policy.EmailPolicy._fold()` relies on the generic `str` / `bytes` method `.splitlines()`, ... | aec1dac4efe36a7db51f08385ddcce978814dbe3 | 4e502a4997af4c8042a6ac13115a3f8ba31520ea |
python/cpython | python__cpython-117309 | # `_ssl._SSLContext` construction crashes when a bad build results in an empty `PY_SSL_DEFAULT_CIPHER_STRING` #define
# Bug report
### What happened?
This doesn't come up in practice as nobody would ever have such a misbehaving build in a supported released config.
Not a security issue.
I stumbled upon thi... | 8cb7d7ff86a1a2d41195f01ba4f218941dd7308c | 6c8ac8a32fd6de1960526561c44bc5603fab0f3e |
python/cpython | python__cpython-117304 | # Free-threading crash involving `os.fork()` and `PyThreadState_DeleteCurrent()`
When running with `PYTHON_GIL=0`, `test_threading.test_reinit_tls_after_fork()` may crash in the forked child process with an assertion error that one of the dead thread states was already cleared.
https://github.com/python/cpython/blo... | bfc57d43d8766120ba0c8f3f6d7b2ac681a81d8a | 05e0b67a43c5c1778dc2643c8b7c12864e135999 |
python/cpython | python__cpython-117301 | # Use stop-the-world to make `sys._current_frames()` and `sys._current_exceptions()` thread-safe in free-threaded build
# Feature or enhancement
The [`sys._current_frames`](https://docs.python.org/3/library/sys.html#sys._current_frames) and [`sys._current_exceptions`](https://docs.python.org/3/library/sys.html#sys._c... | 01bd74eadbc4ff839d39762fae6366f50c1e116e | 94c97423a9c4969f8ddd4a3aa4aacb99c4d5263d |
python/cpython | python__cpython-117297 | # DocTestCase should report as skipped if the doctest itself is skipped
# Feature or enhancement
### Proposal:
When a doctest is run through `unittest`, each docstring is wrapped in a `DocTestCase`. Currently, if the docstring's examples are all skipped (either with a `# doctest: +SKIP` comment, or the `optionfl... | 29829b58a8328a7c2ccacaa74c1d7d120a5e5ca5 | efcc96844e7c66fcd6c23ac2d557ca141614ce9a |
python/cpython | python__cpython-117298 | # test.libregrtest race condition in runtest_mp leads to 30 second delay in free-threaded build
This is related to https://github.com/python/cpython/issues/90363.
In https://github.com/python/cpython/pull/30470, the (partial) fix for that issue I wrote:
> There are still potential race conditions between checkin... | 26a680a58524fe39eecb243e37adfa6e157466f6 | 59864edd572b5c0cc3be58087a9ea3a700226146 |
python/cpython | python__cpython-117290 | # CFG to instructions creates too many label IDs
``_PyCfg_ToInstructionSequence`` creates an instruction sequence where the jump target labels are equal to the offsets of the jump targets. This by passes the "labelmap" mechanism of the instruction sequence data structure (the mapping is done at source) but also requir... | 262fb911ab7df8e890ebd0efb0773c3e0b5a757f | 74c8568d07719529b874897598d8b3bc25ff0434 |
python/cpython | python__cpython-117916 | # PyTuple_SetItem documentation doesn't warn about refcount requirements
The PyTuple_SetItem() function (correctly) raises a SystemError when used on a tuple whose refcount isn't 1. The `PyTuple_SET_ITEM()` macro doesn't have any checks on the refcount, but it's still really bad to use it on a tuple that already in us... | 041a566f3f987619cef7d6ae7915ba93e39d2d1e | 3b26cd8ca0e6c65e4b61effea9aa44d06e926797 |
python/cpython | python__cpython-117285 | # 3.13.0a5 SIGSEGV when calling weakref.proxy on a class instance
### What happened?
When building [dill](https://github.com/uqfoundation/dill) for Fedora Linux 41 with Python 3.13.0a5, a segmentation fault happens. The investigation leads back to Python.
The minimal reproducer for this to happen with Python 3.13.... | 8ef98924d304b5c9430e23f8170e2c32ec3a9920 | 8987a5c809343ae0dd2b8e607bf2c32a87773127 |
python/cpython | python__cpython-117354 | # scandir direntry.stat() always returns st_ctime of 0 on Windows
# Bug report
### Bug description:
In 3.12 on Windows, calling stat() on a direntry returned from os.scandir() always returns an st_ctime of 0:
```python
import os
for direntry in os.scandir('.'):
st = direntry.stat()
print(st.st_ctime)
```
I... | 985917dc8d34e2d2f717f7a981580a8dcf18d53a | 2057c92125f2e37caee209f032be9fe9c208357b |
python/cpython | python__cpython-117276 | # SystemError: <method-wrapper '__init__' of ast.AST-child object at ...> returned NULL without setting an exception
# Bug report
### Bug description:
```python
import ast
class File(ast.AST):
_fields = ("xxx",)
def __init__(self):
super().__init__()
File()
```
```
Traceback (most recent call l... | 4c71d51a4b7989fc8754ba512c40e21666f9db0d | 8cb7d7ff86a1a2d41195f01ba4f218941dd7308c |
python/cpython | python__cpython-117234 | # Allow CPython to build against cryptography libraries lacking BLAKE2 support
# Feature or enhancement
### Proposal:
As part of a series of changes [discussed on the python Ideas board](https://discuss.python.org/t/support-building-ssl-and-hashlib-modules-against-aws-lc/44505/6), this issue proposes placing guards ... | b8eaad30090b46f115dfed23266305b6546fb364 | 01a51f949475f1590eb5899f3002304060501ab2 |
python/cpython | python__cpython-117228 | # Refresh doctest summary
# Feature or enhancement
The doctest output looks like [this](https://github.com/hugovk/cpython/actions/runs/8421808774/job/23059608592?pr=62):
```
Document: howto/ipaddress
-------------------------
1 items passed all tests:
10 tests in default
10 tests in 1 items.
10 passed and 0 failed... | ce00de4c8cd39816f992e749c1074487d93abe9d | 92397d5ead38dde4154e70d00f24973bcf2a925a |
python/cpython | python__cpython-117493 | # collection.ChainMap.fromkeys argument 'value' has incorrect argument kind
# Bug report
### Bug description:
fromkeys method of collection.ChainMap has vararg argument kind. Description of 'fromkeys' method and redirection to dict.fromkeys implies that there should be single value (positional only or keyword-or-pos... | 03f7aaf953f00bf2953c21a057d8e6e88db659c8 | fc5f68e58ecfbc8c452e1c2f33a2a53d3f2d7ea2 |
python/cpython | python__cpython-117206 | # compileall with workers would is faster with larger chunksize
# Feature or enhancement
### Proposal:
Currently we do a map with the default chunksize=1 over files:
https://github.com/python/cpython/blob/3726cb0f146cb229a5e9db8d41c713b023dcd474/Lib/compileall.py#L109
A quick local benchmark suggests that chunksize... | b4fe02f595fcb9f78261920a268ef614821ec195 | 985917dc8d34e2d2f717f7a981580a8dcf18d53a |
python/cpython | python__cpython-117220 | # object.__sizeof__(1) have different output between 3.9.10 and 3.12.2
# Bug report
### Bug description:
on a Windows x64 machine
```python
>>> #python 3.9.10
>>> object.__sizeof__(1)
28
>>>
>>> #python 3.12.2
>>> object.__sizeof__(1)
56
>>>
```
### CPython versions tested on:
3.9, 3.12
### Operating systems te... | 406ffb5293a8c9ca315bf63de1ee36a9b33f9aaf | c85e3526736d1cf8226686fdf4f5117e105a7b13 |
python/cpython | python__cpython-117198 | # Wrong formatting in the "What's new in Python 3.13" article, "Improved Modules" section.
There is a wrong formatting In the "What's new in Python 3.13" article, "Improved Modules" section: name of the `base64` module is written smaller than other modules' names. Everything becomes clear if you look at the [source co... | 78a651fd7fbe7a3d1702e40f4cbfa72d87241ef0 | f267d5bf2a99fbeb26a720d1c87c1f0557424b14 |
python/cpython | python__cpython-117203 | # Both test_flush_reparse_deferral_disabled tests fail with older libexpat (2.4.4)
# Bug report
### Bug description:
Running the test suite for 3.9.19 (and other currently released versions) breaks with the old `libexpat` (of course, patched for the security issues):
```
[ 684s] 0:04:10 load avg: 0.64 Re-running t... | 9f74e86c78853c101a23e938f8e32ea838d8f62e | 872e212378ef86392069034afd80bb53896fd93d |
python/cpython | python__cpython-117184 | # new `TestUopsOptimization` test case failing an assert
# Bug report
### Bug description:
While writing test cases for #116168, I ran into a case that failed on `main` too. Here's the test as a diff. It's under `test_opt.TestUopsOptimization`:
```diff
diff --git a/Lib/test/test_capi/test_opt.py b/Lib/test/test_cap... | 6c83352bfe78a7d567c8d76257df6eb91d5a7245 | f11d0d8be8af28e1368c3c7c116218cf65ddf93e |
python/cpython | python__cpython-117179 | # 3.13.0a5 broke `importlib.util.LazyLoader`
# Bug report
### Bug description:
Test program:
```python
# An importlib.util.LazyLoader test, based on example from
# https://docs.python.org/3/library/importlib.html#implementing-lazy-imports
import sys
import importlib.util
def lazy_import(name):
... | 9a1e55b8c5723206116f7016921be3937ef2f4e5 | 4c71d51a4b7989fc8754ba512c40e21666f9db0d |
python/cpython | python__cpython-117199 | # New warning: `'initializing': conversion from 'uint64_t' to 'uintptr_t', possible loss of data [D:\a\cpython\cpython\PCbuild\_freeze_module.vcxproj]`
# Bug report
### Bug description:
Popped up in https://github.com/python/cpython/pull/117171/files and https://github.com/python/cpython/pull/117170/files
### CPyth... | eebea7e515462b503632ada74923ec3246599c9c | 83485a095363dad6c97b19af2826ca0c34343bfc |
python/cpython | python__cpython-117500 | # `linecache.cache` sometimes has an entry for `<string>` under Python 3.13.0a5
# Bug report
### Bug description:
I noticed this via Hypothesis' pretty-printer for `lambda` functions, and tracked the divergence through the `inspect` module to `linecache`:
```python
import linecache
def test():
print(linecache.... | a931a8b32415f311008dbb3f09079aae1e6d7a3d | ecdf6b15b0c0570c3c3302ab95bdbfd3007ea941 |
python/cpython | python__cpython-117190 | # FAIL: test_makefile_test_folders (test.test_tools.test_makefile.TestMakefile.test_makefile_test_folders)
### Bug description:
Configuration:
```sh
./configure --with-pydebug
```
Test:
```python
./python -m test test_tools --junit-xml test-resuls.xml -j2 --timeout 1200 -v
```
Output:
```python
FAIL: te... | d9cfe7e565a6e2dc15747a904736264e31a10be4 | 35b6c4a4da201a947b2ceb96ae4c0d83d4d2df4f |
python/cpython | python__cpython-118037 | # performance: Update io.DEFAULT_BUFFER_SIZE to make python IO faster?
# Bug report
### Bug description:
Hello,
I was doing some benchmarking of python and package installation.
That got me down a rabbit hole of buffering optimizations between between pip, requests, urllib and the cpython interpreter.
TL;DR I wou... | 8fa124868519eeda0a6dfe9191ceabd708d84fa7 | 23950beff84c39d50f48011e930f4c6ebf32fc73 |
python/cpython | python__cpython-117143 | # Convert _ctypes extension module to multi-phase init
# Feature or enhancement
### Proposal:
This issue is available to keep track of PRs, following the heap type conversion completed at #114314.
### TODO:
- ~[ ] Make `free_list` in `malloc_closure.c` per-module variables.~ [rejected](https://github.com/py... | dd44ab994b7262f0704d64996e0a1bc37b233407 | 3de09cadde788065a4f2d45117e789c9353bbd12 |
python/cpython | python__cpython-117135 | # Microoptimize glob() for include_hidden=True
If `include_hidden` is false (by default), the dot-starting names are filtered out if the pattern does not start with a dot. If `include_hidden` is true, no filtering is needed, but the current code still creates a generator expression to filter names with condition which... | 5a78f6e798d5c2af1dba2df6c9f1f1e5aac02a86 | 00baaa21de229a6db80ff2b84c2fd6ad1999a24c |
python/cpython | python__cpython-117128 | # glob tests miss `mypipe`
On my system, `test_glob_named_pipe` has been failing since it was added in #116421:
```
======================================================================
FAIL: test_glob_named_pipe (test.test_glob.GlobTests.test_glob_named_pipe)
---------------------------------------------------... | 42ae924d278c48a719fb0ab86357f3235a9f7ab9 | 8383915031942f441f435a5ae800790116047b80 |
python/cpython | python__cpython-117115 | # Add `isdevdrive` to `posixpath`
# Feature or enhancement
### Proposal:
Four changes:
1. Add link to `genericpath.py` & remove redundant availability in the documentation for `os.path`
2. Deduplicate `lexists` & fallback `isjunction` implementations by defining them in `genericpath`.
3. Move fallback `ntpa... | 0821923aa979a72464c5da8dfa53a719bba5801c | c2276176d543a2fc2d57709c2787f99850fbb073 |
python/cpython | python__cpython-117111 | # Subclass of `typing.Any` cannot be instantiated with arguments
# Bug report
### Bug description:
```python
from typing import Any
class C(Any):
def __init__(self, v): ...
C(0) # TypeError: object.__new__() takes exactly one argument (the type to instantiate)
```
The fix should be easy. Just replace --
``... | 8eec7ed714e65d616573b7331780b0aa43c6ed6a | a17f313e3958e825db9a83594c8471a984316536 |
python/cpython | python__cpython-117120 | # Major slowdown on large listcomp
# Bug report
### Bug description:
That started within the last 48 hours, on the main branch. Here's test code; it's possible it could be simplified
```python
if 1:
class Obj:
def __init__(self, i):
self.val = i
import sys
print(sys.version)
fro... | e28477f214276db941e715eebc8cdfb96c1207d9 | e2e0b4b4b92694ba894e02b4a66fd87c166ed10f |
python/cpython | python__cpython-117092 | # Sync with importlib_metadata for Python 3.13
This issue tracks incorporating updates from importlib_metadata into CPython for Python 3.13, including:
<!-- gh-linked-prs -->
### Linked PRs
* gh-117092
* gh-117094
<!-- /gh-linked-prs -->
| 8ad88984200b2ccddc0a08229dd2f4c14d1a71fc | 7d446548ef53f6c3de1097c6d44cada6642ddc85 |
python/cpython | python__cpython-132595 | # Python 3.13a5 fails to build on AIX
# Bug report
### Bug description:
```
gcc -pthread -maix64 -bI:Modules/python.exp -Wl,-blibpath:/QOpenSys/pkgs/lib:/QOpenSys/usr/lib -lutil -Wl,-hlibpython3.13.so ...
ld: 0706-012 The -h flag is not recognized.
ld: 0706-006 Cannot find or open library file: -l ibpython3.13.so
... | 47f1722d8053fb4f79e68cba07cbf08fb58a511c | efcc42ba70fb09333a2be16401da731662e2984b |
python/cpython | python__cpython-117113 | # importlib.resources.abc.Traversable.joinpath docs incomplete
[`importlib.resources.abc.Traversable.joinpath`](https://docs.python.org/3.13/library/importlib.resources.abc.html#importlib.resources.abc.Traversable.joinpath) should mention that it can take multiple descendants.
The versionchanged note should mention... | e569f9132b5bdc1c103116a020e19e3ccc20cf34 | 52f5b7f9e05fc4a25e385c046e0b091641674556 |
python/cpython | python__cpython-117069 | # Unreachable (useless) code in bytesio.c:resize_buffer()
# Bug report
### Bug description:
https://github.com/NGRsoftlab/cpython/blob/main/Modules/_io/bytesio.c#L158
```C
size_t alloc = PyBytes_GET_SIZE(self->buf);
/* skipped for short */
if (alloc > ((size_t)-1) / sizeof(char))
goto overflow... | 63d6f2623ef2aa90f51c6a928b96845b9b380d89 | 42ae924d278c48a719fb0ab86357f3235a9f7ab9 |
python/cpython | python__cpython-117067 | # Repeated optimizations in tier 2, due to the optimizer "failing" when it cannot optimize perfectly.
The tier 2 optimizer fails whenever it cannot optimize the entire trace, which results in a large number of repeated attempts to optimize the same code.
While we should add some form of backoff #116968 to mitigate ... | 63289b9dfbc7d87e81f1517422ee91b6b6d19531 | dcaf33a41d5d220523d71c9b35bc08f5b8405dac |
python/cpython | python__cpython-120854 | # Change `JUMP_TO_TOP` to a more general backwards jump for tier 2.
Currently we have the `_JUMP_TO_TOP` uop which jumps to the *second* uop in the tier 2 trace, as the first is reserved for `_START_EXECUTOR`.
Since this is a bit of an odd special case, we might as well add a more general jump backward.
Doing so wou... | a47abdb45d4f1c3195c324812c33b6ef1d9147da | ce1064e4c9bcfd673323ad690e60f86e1ab907bb |
python/cpython | python__cpython-117126 | # test_posix: test_sched_setaffinity() fails on CentOS9
# Bug report
Example of AMD64 CentOS9 3.x failure: https://buildbot.python.org/all/#/builders/838/builds/5082
```
======================================================================
FAIL: test_sched_setaffinity (test.test_posix.PosixTester.test_sched_setaffi... | 50f9b0b1e0fb181875751cef951351ed007b6397 | 0907871d43bffb613cbd560224e1a9db13d06c06 |
python/cpython | python__cpython-117059 | # macOS GUI and packaging suggestions are out of date
# Documentation
The current macOS usage guide doesn't mention several prominent GUI toolkits (Kivy, Toga), or app packaging tools (PyInstaller, Briefcacse). The guide should be updated to include links to these projects.
<!-- gh-linked-prs -->
### Linked PRs
* ... | 44fbab43d8f3f2df07091d237824cf4fa1f6c57c | 9221ef2d8cb7f4cf37592eb650d4c8f972033000 |
python/cpython | python__cpython-117028 | # Store both function and code object in the function version cache
(Copied from https://github.com/faster-cpython/ideas/issues/665.)
The idea here is to avoid function version cache misses for generator expressions. (See https://github.com/faster-cpython/ideas/issues/664#issuecomment-2000948111.)
We have a comp... | 570a82d46abfebb9976961113fb0f8bb400ad182 | c85d84166a84a5cb2d724012726bad34229ad24e |
python/cpython | python__cpython-117042 | # "-X gil" is not included in the Python CLI help
This option was added in #116167. `PYTHON_GIL` was added in the help output, but `-X gil` was not.
<!-- gh-linked-prs -->
### Linked PRs
* gh-117042
<!-- /gh-linked-prs -->
| 2d17309cc719c41e02ffd1d6cac10f95a7e2359c | 332ac46c09cd500a16a5f03b53f038b1d9ce77ef |
python/cpython | python__cpython-117027 | # http.server misleading point in doc about "text/*" mime types
# Documentation
It's said in the [http.server docs](https://docs.python.org/3/library/http.server.html#http.server.SimpleHTTPRequestHandler.do_GET):
> If the file’s MIME type starts with text/ the file is opened in text mode; otherwise binary mode i... | ea2d707bd59963bd4f53407108026930ff12ae56 | ac8df4b5892d2e4bd99731e7d87223a35c238f81 |
python/cpython | python__cpython-117064 | # Unchecked signed integer overflow in PyLong_AsPid()
If `pid_t` has the same size as `int`, `PyLong_AsPid` is defined as `PyLong_AsLong`. if the size of `int` is less than the size of `long`, there are values out of the C `int` range but in the C `long` range. Calling `PyLong_AsPid()` with such argument will not rais... | 519b2ae22b54760475bbf62b9558d453c703f9c6 | 8182319de33a9519a2f243ac8c35a20ef82a4d2d |
python/cpython | python__cpython-117009 | # test_functools: test_recursive_pickle() crash on ARM64 Windows Non-Debug 3.x
# Bug report
build: https://buildbot.python.org/all/#/builders/730/builds/9247
```
test_recursive_pickle (test.test_functools.TestPartialC.test_recursive_pickle) ...
Windows fatal exception: stack overflow
Current thread 0x000015c8 (mos... | 9967b568edd2e35b0415c14c7242f3ca2c0dc03d | 72eea512b88f8fd68b7258242c37da963ad87360 |
python/cpython | python__cpython-116997 | # pystats: Add some stats about where _Py_uop_analyse_and_optimize bails out
# Feature or enhancement
### Proposal:
It would be useful to know the cases where the new optimizer can't optimize a trace.
### Has this already been discussed elsewhere?
No response given
### Links to previous discussion of this feature... | 50369e6c34d05222e5a0ec9443a9f7b230e83112 | 617158e07811edfd6fd552a3d84b0beedd8f1d18 |
python/cpython | python__cpython-116992 | # `pegen --help` should mention that it needs different grammar files
# Bug report
I've got contacted by a user who tried to generate a pure-python parser with `pegen` from https://github.com/python/cpython/blob/main/Grammar/python.gram
It was failing with
```python
python -m pegen -o parser.py cpython\Grammar\pyt... | 1e5f615086d23c71a9701abe641b5241e4345234 | 84c3191954b40e090db15da49a59fcc40afe34fd |
python/cpython | python__cpython-117004 | # Simplify the Grammar
# Feature or enhancement
### Proposal:
I've been implementing a Python runtime for a couple of months and I've been meaning to ask about something I noticed in the grammar.
Why do we use:
```
assignment:
| NAME ':' expression ['=' annotated_rhs ]
| ('(' single_target ')'
... | 9b280ab0ab97902d55ea3bde66b2e23f8b23959f | 1acd2497983f1a78dffd6e5b3e0f5dd0920a550f |
python/cpython | python__cpython-117025 | # inspect.getsource does not work for a class-defined code object
# Bug report
### Bug description:
In the following MRE, `code.co_firstlineno` correctly returns 4, the first line number of the class definition, but `getsource(code)` returns the content of the entire file:
```python
import sys
from inspect im... | d16c9d1278164f04778861814ebc87ed087511fc | 6547330f4e896c6748da23704b617e060e6cc68e |
python/cpython | python__cpython-116985 | # Mimalloc header is not installed
# Bug report
### Bug description:
Mimalloc is introduced in https://github.com/python/cpython/pull/109914.
This will cause a header not found when building any extension that includes a `pycore_*.h` header as:
```
[build] In file included from /Users/yyc/repo/py/install/incl... | e17cd1fbfd4f20824c686c7242423e84ba6a6cc5 | 456c29cf85847c67dfc0fa36d6fe6168569b46fe |
python/cpython | python__cpython-116958 | # configparser.DuplicateOptionError leaves ConfigParser instance in bad state
# Bug report
### Bug description:
If you catch `configparser.Error` when reading a config file (the intention is to skip invalid config files) and then attempt to use the ConfigParser instance, you can get really weird errors. In the follo... | b1bc37597f0d36084c4dcb15977fe6d4b9322cd4 | a8e93d3dca086896e668b88b6c5450eaf644c0e7 |
python/cpython | python__cpython-116967 | # `./Include/cpython/pyatomic_std.h` will not compile
# Bug report
### Bug description:
These two functions have unclosed return expression.
https://github.com/python/cpython/blob/2982bdb936f76518b29cf7de356eb5fafd22d112/Include/cpython/pyatomic_std.h#L913-L927
### CPython versions tested on:
CPython main branch
... | 165cb4578c3cbd4d21faf1050193c297662fd031 | ecb4a2b711d62f1395ddbff52576d0cca8a1b43e |
python/cpython | python__cpython-116940 | # Rewrite binarysort()
# Feature or enhancement
### Proposal:
I tried many things to speed listobject.c's `binarysort()`, but nothing really helped (neither code tweaks nor entirely different approaches).
However, I got annoyed enough at the ancient code to rewrite it :wink: Some specific annoyances:
- Whe... | 8383915031942f441f435a5ae800790116047b80 | 97ba910e47ad298114800587979ce7beb0a705a3 |
python/cpython | python__cpython-125213 | # `dict` and `dict.update` treat the first argument as a mapping when it has attribute `keys` without attribute `__getitem__`
# Bug report
## How to reproduce
1. Make such a class:
```python
class Object:
def __iter__(self, /):
return iter(())
def keys(self, /):
re... | 21ac0a7f4cf6d11da728b33ed5e8cfa65a5a8ae7 | 89515be596a0ca05fd9ab4ddf76c8013dd093545 |
python/cpython | python__cpython-116937 | # C API: Add PyType_GetModuleByDef() to the limited C API version 3.13
I propose adding `PyType_GetModuleByDef()` to the limited C API version 3.13. The function was added to Python 3.9, the function is now well tested. We could add it way earlier to the limited C API.
cc @encukou
---
The `PyType_GetModuleByD... | 507896d97dcff2d7999efa264b29d9003c525c49 | 0c1a42cf9c8cd0d4534d5c1d58f118ce7c5c446e |
python/cpython | python__cpython-118021 | # docs(easy): Document that heap types need to support garbage collection
# Documentation
In https://docs.python.org/3/c-api/typeobj.html#c.Py_TPFLAGS_HEAPTYPE, it does not mention that the heap type must support GC. However this is actually the case. The type itself needs to be visited by the GC because it forms a... | 5d544365742a117027747306e2d4473f3b73d921 | 4605a197bd84da1a232bd835d8e8e654f2fef220 |
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