[issue45418] types.UnionType is not subscriptable

Joseph Perez added the comment: Indeed, sorry, my example was bad. My library was raising at several place, and I've extrapolated about generic substitution. I've indeed other substitutions (without `TypeVar`), and because they were failing, I've assumed that all of my substitutions were fai

[issue45418] types.UnionType is not subscriptable

Ken Jin added the comment: No worries! > So I'll have to add some `if` in my code. Yeah, we had to do that in the typing module too. Hope you manage to fix your library without much trouble. -- ___ Python tracker

[issue45416] "loop argument must agree with lock" instantiating asyncio.Condition

Change by Dong-hee Na : -- versions: +Python 3.11 ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: https://mai

[issue29410] Moving to SipHash-1-3

Inada Naoki added the comment: New changeset ad970e8623523a8656e8c1ff4e1dff3423498a5a by Inada Naoki in branch 'main': bpo-29410: Change the default hash algorithm to SipHash13. (GH-28752) https://github.com/python/cpython/commit/ad970e8623523a8656e8c1ff4e1dff3423498a5a --

[issue29410] Moving to SipHash-1-3

Change by Inada Naoki : -- resolution: -> fixed stage: patch review -> resolved status: open -> closed ___ Python tracker ___ ___ P

[issue45416] "loop argument must agree with lock" instantiating asyncio.Condition

Change by Joongi Kim : -- keywords: +patch nosy: +Joongi Kim nosy_count: 6.0 -> 7.0 pull_requests: +27160 stage: -> patch review pull_request: https://github.com/python/cpython/pull/28850 ___ Python tracker

[issue44036] asyncio SSL server can be DOSed, event loop gets blocked: busy loops and uses 100% CPU

Change by Neil Booth : -- nosy: +kyuupichan ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.pyth

[issue45356] Calling `help` executes @classmethod @property decorated methods

Randolf Scholz added the comment: @Terry I think the problem boils down to the fact that `@classmethod @property` decorated methods end up not being real properties. Calling `MyBaseClass.__dict__` reveals: ```python mappingproxy({'__module__': '__main__', 'expensive_class_prope

[issue45422] Data 0 cannot be plotted by matplotlib.pyplot just because some data is less than 0. (ContourSet._get_lowers_and_uppers)

New submission from Jianke　SHI : Data 0 cannot be plotted by matplotlib.pyplot(3.3.4) just because some data is less than 0 (python 3.8.8). The following is a sample program to confirm the problem. the left-bottom area in the right figure is not colored and remains transparent just because the

[issue45422] Data 0 cannot be plotted by matplotlib.pyplot just because some data is less than 0. (ContourSet._get_lowers_and_uppers)

Serhiy Storchaka added the comment: matplotlib is not a part of the standard Python library. Use the corresponding bug tracker to report issues with matplotlib. -- nosy: +serhiy.storchaka resolution: -> third party stage: -> resolved status: open -> closed _

[issue45419] DegenerateFiles.Path mismatch to Traversable interface

Change by Serhiy Storchaka : -- components: +Library (Lib) nosy: +brett.cannon, eric.snow, ncoghlan type: -> behavior versions: +Python 3.11 ___ Python tracker ___ ___

[issue45419] DegenerateFiles.Path mismatch to Traversable interface

Change by Serhiy Storchaka : -- versions: -Python 3.11 ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: https

[issue21302] time.sleep (floatsleep()) should use clock_nanosleep() on Linux

Benjamin Szőke added the comment: It is not true that there are no benefits. Absolute timeout using can reduce the overhead time of any variable and object intialization cost before the WaitForMultipleObjects() which will perform the real sleeping via blocking wait in pysleep(). GetSystemTime

[issue45356] Calling `help` executes @classmethod @property decorated methods

Randolf Scholz added the comment: If fact, in the current state it seem that it is impossible to implement real class-properties, for a simple reason: descriptor.__set__ is only called when setting the attribute of an instance, but not of a class!! ```python import math class TrigConst:

[issue21302] time.sleep (floatsleep()) should use clock_nanosleep() on Linux

Benjamin Szőke added the comment: In other words, using absolute timeout can eliminate the systematic error of desired sleep time. -- ___ Python tracker ___ __

[issue27879] add os.syncfs()

Nir Soffer added the comment: Updating python version, this is not relevant to 3.6 now. On linux users can use "sync --file-system /path" but it would be nice if we have something that works on multiple platforms. -- nosy: +nirs versions: +Python 3.11 -Python 3.6 ___

[issue45417] Enum creation non-linear in the number of values

Armin Rigo added the comment: The timing is clearly quadratic: number of attributes time 1500 0.24s 3000 0.94s 6000 3.74s 1200015.57s Pressing Ctrl-C in the middle of the execution of the largest examples poin

[issue45423] SSL SNI varies when host contains port number

New submission from Thomas Hobson : Not entirely sure if this is intended. When using urllib.request.urlopen, with a hostname and a varying port the SNI information sent differs. To my undersnding, the SNI info shouldn't include the port and should only include the actual host. Attached is a

[issue45116] Performance regression 3.10b1 and later on Windows: Py_DECREF() not inlined in PGO build

neonene added the comment: 3.10.0 official binary is as slow as rc2. Many files are not updated in the source archive or b494f5935c92951e75597bfe1c8b1f3112fec270, so I'm not sure if the delay is intentional or not. We have no choice except waiting for 3.10.1. -- __

[issue45249] Update doctect SyntaxErrors for location range

daniel hahler added the comment: I've noticed a regression/change with the code change for this issue. When not catching the exception from `compile("invalid(", "", "single")` it has a caret below the opening parenthesis: ``` Traceback (most recent call last): File "…/t-syntaxerror-chained.

[issue45419] DegenerateFiles.Path mismatch to Traversable interface

miss-islington added the comment: New changeset 14a483aa400dda8346ac474ce22e2ba8d8126dff by Jason R. Coombs in branch '3.10': [3.10] bpo-45419: Fix interfaces on DegenerateFiles.Path (GH-28844) https://github.com/python/cpython/commit/14a483aa400dda8346ac474ce22e2ba8d8126dff -- nosy

[issue45419] DegenerateFiles.Path mismatch to Traversable interface

Change by Jason R. Coombs : -- resolution: -> fixed stage: patch review -> resolved status: open -> closed type: behavior -> ___ Python tracker ___ __

[issue45249] Update doctect SyntaxErrors for location range

Change by daniel hahler : -- versions: +Python 3.10 ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: https://m

[issue45203] Improve specialization stats for LOAD_METHOD and BINARY_SUBSCR

Ken Jin added the comment: I'm closing this as there doesn't seem to be anything left to do. Please do reopen this issue if you feel that isn't the case. -- resolution: -> fixed stage: patch review -> resolved status: open -> closed ___ Python tra

[issue45423] SSL SNI varies when host contains port number

Change by Christian Heimes : Added file: https://bugs.python.org/file50340/keylog ___ Python tracker ___ ___ Python-bugs-list mailing list U

[issue45423] SSL SNI varies when host contains port number

Christian Heimes added the comment: I have tested your assumption with wireshark. It's not the TLS SNI extension. In both cases ssl module sends SNI "ci.hexf.me". The issue is likely caused by HTTP Host header. The host header contains the port. I'm attaching the capture and keylog file. --

[issue45417] Enum creation non-linear in the number of values

mattip added the comment: Over at PyPy arigo authored and we applied this fix to the as-yet unreleased pypy3.8. Note that it cannot be applied directly to CPython as sets are not ordered. Does the fix break anything? Tests in Lib/test/test_enum.py passed after applying it. -- keywor

[issue44036] asyncio SSL server can be DOSed, event loop gets blocked: busy loops and uses 100% CPU

Change by Christian Heimes : -- assignee: christian.heimes -> components: -SSL ___ Python tracker ___ ___ Python-bugs-list mailing

[issue45249] Update doctect SyntaxErrors for location range

Change by Pablo Galindo Salgado : -- status: closed -> open ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: h

[issue45249] Update doctect SyntaxErrors for location range

Change by Pablo Galindo Salgado : -- pull_requests: +27161 stage: resolved -> patch review pull_request: https://github.com/python/cpython/pull/28854 ___ Python tracker ___ ___

[issue45401] logging TimedRotatingFileHandler must not rename devices like /dev/null

miss-islington added the comment: New changeset 62a667784ba7b84611ebd50fa8a1a464cde32235 by Vinay Sajip in branch 'main': bpo-45401: Change shouldRollover() methods to only rollover regular f… (GH-28822) https://github.com/python/cpython/commit/62a667784ba7b84611ebd50fa8a1a464cde32235 -

[issue45249] Update doctect SyntaxErrors for location range

Change by Pablo Galindo Salgado : -- pull_requests: +27162 pull_request: https://github.com/python/cpython/pull/28855 ___ Python tracker ___ ___

[issue45418] types.UnionType is not subscriptable

Guido van Rossum added the comment: > If you meant to say: why is typing.Union[] allowed, but not types.UnionType[]? That is intentional. types.UnionType is only meant for builtin types. Once you union with *any* type from typing, it will convert to a typing.Union. But why? Just so types.UnionT

[issue45401] logging TimedRotatingFileHandler must not rename devices like /dev/null

Change by Vinay Sajip : -- resolution: -> fixed stage: patch review -> resolved status: open -> closed ___ Python tracker ___ ___ P

[issue45424] ssl.SSLError: unknown error (_ssl.c:4034)

New submission from Rahul Lakshmanan : I face this error when trying to use a package called streamlit. Streamlit calls Tornado which calls SSL. File "C:\Users\\.conda\envs\stockprediction\lib\ssl.py", line 589, in create_default_context context.load_default_certs(purpose) File "C:\Use

[issue45418] types.UnionType is not subscriptable

Ken Jin added the comment: @Guido, I hope I didn't misunderstand you, but to clarify, what OP is asking is an alternative way to construct types.UnionType objects and write: types.UnionType[int, str] like how we used to write before 3.10: typing.Union[int, str] I don't know why we need th

[issue45418] types.UnionType is not subscriptable

Guido van Rossum added the comment: Oh, I see. No, they must make another special case, like for Annotated.-- --Guido (mobile) -- ___ Python tracker ___ __

[issue45424] ssl.SSLError: unknown error (_ssl.c:4034)

Christian Heimes added the comment: The error means that something went wrong while loading certificates, but OpenSSL didn't give us more information about what went wrong. Can you reproduce the issue with more recent Python version? 3.7 and 3.8 are in security fix-only mode and no longer re

[issue45417] Enum creation non-linear in the number of values

Change by Ken Jin : -- nosy: +barry, eli.bendersky, ethan.furman versions: +Python 3.9 -Python 3.7 ___ Python tracker ___ ___ Python

[issue45416] "loop argument must agree with lock" instantiating asyncio.Condition

Serhiy Storchaka added the comment: New changeset 1a7892414e654aa5c99efa31db767baba7f4a424 by Joongi Kim in branch 'main': bpo-45416: Fix use of asyncio.Condition() with explicit Lock objects (GH-28850) https://github.com/python/cpython/commit/1a7892414e654aa5c99efa31db767baba7f4a424 --

[issue45416] "loop argument must agree with lock" instantiating asyncio.Condition

Change by miss-islington : -- nosy: +miss-islington nosy_count: 7.0 -> 8.0 pull_requests: +27163 pull_request: https://github.com/python/cpython/pull/28856 ___ Python tracker _

[issue45116] Performance regression 3.10b1 and later on Windows: Py_DECREF() not inlined in PGO build

Change by Brandt Bucher : -- nosy: +brandtbucher2 ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: https://mai

[issue44828] Using tkinter.filedialog crashes on macOS Python 3.9.6

Marc Culler added the comment: Unfortunately, I am still seeing this failure in Monterey beta 9. However, we are no longer alone. Here is a report of the same issue in Android Studio: https://stackoverflow.com/questions/69068842/android-studio-open-file-operation-failed-the-open-file-operat

[issue45416] "loop argument must agree with lock" instantiating asyncio.Condition

miss-islington added the comment: New changeset 164dddf5f8c9c6b93f32c9f79b4301fc804576e9 by Miss Islington (bot) in branch '3.10': bpo-45416: Fix use of asyncio.Condition() with explicit Lock objects (GH-28850) https://github.com/python/cpython/commit/164dddf5f8c9c6b93f32c9f79b4301fc804576e9

[issue45116] Performance regression 3.10b1 and later on Windows: Py_DECREF() not inlined in PGO build

Change by Brandt Bucher : -- nosy: +brandtbucher -brandtbucher2 ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe

[issue45380] help() appears confused about the module of typing.Annotated

Alex Waygood added the comment: It actually appears as though there is no documented way to retrieve the metadata from an annotated alias. Is this intentional? The metadata is stored in a `__metadata__` attribute of a `typing._AnnotatedAlias` instance. But the `__metadata__` attribute is un

[issue45380] help() appears confused about the module of typing.Annotated

Change by Alex Waygood : -- nosy: +gvanrossum, kj ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: https://mai

[issue44828] Using tkinter.filedialog crashes on macOS Python 3.9.6

Marc Culler added the comment: I was able to fix this problem for Tk on Monterey beta [21A5543b]. The fix has been committed to the tip of the core-8-6-branch in the Tk fossil repository. Here is a synopsis. Tk used to open the file dialog by calling [NSApp runModalForWindow:panel]. Starting

[issue45401] logging TimedRotatingFileHandler must not rename devices like /dev/null

Serhiy Storchaka added the comment: Seems it introduced a resource warning in tests. -- ___ Python tracker ___ ___ Python-bugs-list

[issue45418] types.UnionType is not subscriptable

Serhiy Storchaka added the comment: types.UnionType corresponds to typing._UnionGenericAlias, not typing.Union. We can make (int | str | T)[dict] returning an instance of types.UnionType instead of an instance of typing._UnionGenericAlias. But it will be a breaking change, because typing._Un

[issue45356] Calling `help` executes @classmethod @property decorated methods

Change by Serhiy Storchaka : -- nosy: +serhiy.storchaka ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: https

[issue45116] Performance regression 3.10b1 and later on Windows: Py_DECREF() not inlined in PGO build

Change by MagzoB Mall : -- type: performance -> crash ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: https:/

[issue45401] logging TimedRotatingFileHandler must not rename devices like /dev/null

Change by Serhiy Storchaka : -- status: closed -> open ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: https:

[issue45401] logging TimedRotatingFileHandler must not rename devices like /dev/null

Vinay Sajip added the comment: Where did you see the warnings? I didn't spot anything in the GitHub Actions logs. -- ___ Python tracker ___ __

[issue45401] logging TimedRotatingFileHandler must not rename devices like /dev/null

Serhiy Storchaka added the comment: test_should_not_rollover (test.test_logging.TimedRotatingFileHandlerTest) ... /home/serhiy/py/cpython/Lib/unittest/case.py:547: ResourceWarning: unclosed file <_io.TextIOWrapper name='/dev/null' mode='a' encoding='utf-8'> if method() is not None: Resource

[issue45401] logging TimedRotatingFileHandler must not rename devices like /dev/null

Serhiy Storchaka added the comment: With tracemalloc enabled: $ ./python -X tracemalloc -m test -v test_logging -m test_should_not_rollover ... test_should_not_rollover (test.test_logging.TimedRotatingFileHandlerTest) ... /home/serhiy/py/cpython/Lib/unittest/case.py:547: ResourceWarning: uncl

[issue45116] Performance regression 3.10b1 and later on Windows: Py_DECREF() not inlined in PGO build

Guido van Rossum added the comment: Someone whose name I don't recognize (MagzoB Mall) just changed the issue type to "crash" without explaining why. That user was created today, and has no triage permissions. Mind if I change it back? It feels like vandalism. -- ___

[issue21302] time.sleep (floatsleep()) should use clock_nanosleep() on Linux

Eryk Sun added the comment: > Absolute timeout using can reduce the overhead time of any variable > and object intialization cost before the WaitForMultipleObjects() Again, timer objects store the due time in interrupt time, not system time (i.e. InterruptTime vs SystemTime in the KUSER_SHA

[issue45356] Calling `help` executes @classmethod @property decorated methods

Raymond Hettinger added the comment: I'm merging issue 44904 into this one because they are related. -- nosy: +rhettinger ___ Python tracker ___ __

[issue44904] Classmethod properties are erroneously "called" in multiple modules

Raymond Hettinger added the comment: Moving this discussion to issue 45356 because some of the discussion would need to be duplicated. -- nosy: +rhettinger resolution: -> duplicate stage: patch review -> resolved status: open -> closed superseder: -> Calling `help` executes @classme

[issue45356] Calling `help` executes @classmethod @property decorated methods

Raymond Hettinger added the comment: It may have been a mistake to allow this kind of decorator chaining. * As Randolf and Alex have noticed, it invalidates assumptions made elsewhere in the standard library and presumably in third-party code as well. * And as Randolf noted in his last p

[issue45425] There is an error in the Chinese documentation of contextlib.AbstractContextManager

New submission from Zhong Liu : The documentation of contextlib.AbstractContextManager is incorrectly described as the documentation of contextlib.AbstractAsyncContextManager from 3.6 to 3.10, all is. https://docs.python.org/zh-cn/3.6/library/contextlib.html#contextlib.AbstractContextManager

[issue45116] Performance regression 3.10b1 and later on Windows: Py_DECREF() not inlined in PGO build

Change by Guido van Rossum : -- type: crash -> performance ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: ht

[issue45384] Accept Final as indicating ClassVar for dataclass

Carl Meyer added the comment: > Are Final default_factory fields real fields or pseudo-fields? (i.e. are they > returned by dataclasses.fields()?) They are real fields, returned by `dataclasses.fields()`. In my opinion, the behavior change proposed in this bug is a bad idea all around, and

[issue45384] Accept Final as indicating ClassVar for dataclass

Gregory Beauregard added the comment: Thanks for the feedback Carl. Your proposed nesting PEP change is not possible: ClassVar[Final[int]] isn't valid because Final[int] isn't a type. As far as I know this would need type intersections to be possible. I'm going to try sending a one-off emai

[issue45384] Accept Final as indicating ClassVar for dataclass

Carl Meyer added the comment: Good idea to check with the PEP authors. I don’t think allowing both ClassVar and Final in dataclasses requires general intersection types. Neither ClassVar nor Final are real types; they aren’t part of the type of the value. They are more like special annotati

[issue45426] PANDAS INSTALLATION PIP FAILED ON WINDOWS 11

New submission from Jimmy Alexander : Generating code Finished generating code building 'pandas._libs.parsers' extension C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.28.29910\bin\HostX86\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -DNPY_NO_DEPRECATED_

[issue45426] PANDAS INSTALLATION PIP FAILED ON WINDOWS 11

Jimmy Alexander added the comment: C:\Users\ufx>pip install pandas Collecting pandas Using cached pandas-1.3.3.tar.gz (4.7 MB) Installing build dependencies ... error ERROR: Command errored out with exit status 1: command: 'C:\Users\ufx\AppData\Local\Programs\Python\Python310\python.ex

[issue45426] PANDAS INSTALLATION PIP FAILED ON WINDOWS 11

Jimmy Alexander added the comment: descarga la version 3.10 se supone es estable pero al momento de instalar PANDAS usando PIP en el CMD de windows 11 FALLA y empieza a buscar otras vesiones de menores de pandas para intentar instalar via pip pero todas fallan! -- type: -> compil

[issue45427] importlib.readers.MultiplexedPath

New submission from David Rajaratnam : I'm trying to use `importlib.resources.files()`. However, I cannot work out how to properly use the `importlib.readers.MultiplexedPath()` object that is returned. As I expect and want, the returned object is referring to a directory, but I cannot seem t

[issue36054] On Linux, os.count() should read cgroup cpu.shares and cpu.cfs (CPU count inside docker container)

Vadym Stupakov added the comment: > Do we have any news about this? There is IBM effort to do this in container level, so that os.cpu_count() will return right result in container https://www.phoronix.com/scan.php?page=news_item&px=Linux-CPU-Namespace -- nosy: +RedEyed