Mailman 3 January 2022 - Python-Dev

Restated typing issue for class fields.
by Vincent Risi 19 Jan '22

19 Jan '22

I have written an xsd parser to generate python classes. I also have written a utility to read in an xml file to populate the python classes. As well as a utility to write xml from the python classes thus generated. For example the code below that I include here shows a small sample of the generated code. The __annotations__ for these are very easy to use by the utility code for doing their job. Using the typing list[x] and tuple[a,b] do not work as well as - [x] instead of list[x] - (a, b) instead of tuple(a, b) I seem to feel list[x] and tuple[a,b] are far more non Python, requiring having to parse the string they return in a complicated way. Looping through the annotations to get the field types it's easy to test for list or tuple and then get the field type for the list or tuple and the usage for the tuple. I have been using Python from version 1.6 and have been involved in writing and generating tons of lines of Python. ATTRIB, PSEUDO, ASIS = range(3) class RecordType: isNew: str column: (str,ATTRIB) whizz: (str,PSEUDO) def __init__(self): self.isNew = '' self.whizz = '' self.column = '' class MsgTableType: record: [RecordType] def __init__(self): self.record = [] rt = RecordType() for annote in rt.__annotations__: print (annote, type(rt.__annotations__[annote])) mtt = MsgTableType() for annote in mtt.__annotations__: print (annote, type(mtt.__annotations__[annote]))

2 1

SC Acceptance: PEP 646 -- Variadic Generics
by Barry Warsaw 19 Jan '22

19 Jan '22

Hello Mark, Matthew, Pradeep, Vincent, and Guido, The Python Steering Council discussed the latest version of PEP 646 (Variadic Generics) at our last meeting, and have unanimously decided to accept the PEP. Congratulations! We want to specifically mention that we appreciate the way you called out the Python grammar changes required by the typing features you proposed. As we’ve said before, the Steering Council strongly believes that the typing language and the “general” Python programming language should remain aligned, so the implications of syntax change proposed in the PEP for typing needed to be addressed for non-typed Python as well. The PEP explains this change well, and does a good job of justifying the semantics and usefulness of the change for non-type related purposes. Please feel free to change the PEP status to Accepted, and to merge your changes to Python 3.11 at your convenience. With our appreciation, -Barry (on behalf of the Python Steering Council)

3 2

Minor inconvenience: f-string not recognized as docstring
by Antoine Pitrou 18 Jan '22

18 Jan '22

Hello, Currently, a f-string is not recognized as a docstring: >>> class C: f"foo" >>> C.__doc__ >>> This means you need to use a (admittedly easy) workaround: >>> class C: __doc__ = f"foo" >>> C.__doc__ 'foo' Shouldn't the former be allowed for convenience? Regards Antoine.

9 11

PEP 646 (Variadic Generics): final call for comments
by Matthew Rahtz 18 Jan '22

18 Jan '22

Hi everyone, We've got to the stage now with PEP 646 that we're feeling pretty happy with it. So far though we've mainly been workshopping it in typing-sig, so as PEP 1 requires we're asking for some feedback here too before submitting it to the steering council. If you have time over the next couple of weeks, please take a look at the current draft and let us know your thoughts: https://www.python.org/dev/peps/pep-0646/ (Note that the final couple of sections are out of date; https://github.com/python/peps/pull/1880 clarifies which grammar changes would be required, now that PEP 637 has been rejected. We also have a second PR in progress at https://github.com/python/peps/pull/1881 clarifying some of the motivation.) Thanks! Matthew and Pradeep

9 19

PEP 677 (Callable Type Syntax): Final Call for Comments
by Steven Troxler 18 Jan '22

18 Jan '22

Hello all, We’d like to make a last call for discussion on PEP 677: Callable Type Syntax [1] before sending this to the Steering Council. For context, PEP 677 proposes an arrow-like callable syntax for python: ``` (int, str) -> bool # equivalent to Callable[[int, str], bool] ``` Thanks everyone for comments on our earlier thread [2]. We made some changes to the PEP, but not the proposal itself, in response to that discussion: - More discussion about readability of return types and parentheses - Noting that complex code might be improved by using TypeAliases - Discussion of additional ideas in the Rejected Alternatives section Many of the concerns in the previous thread are about whether new callable syntax is worth the implementation complexity, which is an important question. We’ve seen demand for this from regular typed Python users. And given that Callable is one of the most used and complicated type annotations, we at typing-sig favor new syntax. We have considered the feedback here and in typing-sig and feel that the syntax in the PEP is a reasonable tradeoff between usability and simplicity. One concern raised was that the `async` portion of the proposed syntax may not be worthwhile, even if the rest of the proposal is. We considered removing it, but several heavy users of async pointed out [3] that: - For authors of large, typed async codebases, this syntax would be very helpful - For everyone else there’s minimal readability cost, because async callables will almost never come up. As a result, we decided to leave it in for now, but would be happy to remove it if the SC would prefer that. If there are no other concerns, we'd like to move forward and submit it to the SC. Cheers, Steven ------- [1] PEP 677: https://www.python.org/dev/peps/pep-0677/ [2] Previous RFC thread in python-dev: https://mail.python.org/archives/list/python-dev@python.org/thread/OGACYN2X… [3] Discussion in typing-sig about removing `async` keyword: https://mail.python.org/archives/list/typing-sig@python.org/thread/RFZOSCJH…

7 10

Is anyone using 15-bit PyLong digits (PYLONG_BITS_IN_DIGIT=15)?
by Mark Dickinson 17 Jan '22

17 Jan '22

tl;dr: I'd like to deprecate and eventually remove the option to use 15-bit digits in the PyLong implementation. Before doing so, I'd like to find out whether there's anyone still using 15-bit PyLong digits, and if so, why they're doing so. History: the use of 30-bit digits in PyLong was introduced for Python 3.1 and Python 2.7, to improve performance of int (Python 3) / long (Python 2) arithmetic. At that time, we retained the option to use 15-bit digits, for two reasons: - (1) use of 30-bit digits required C99 features (uint64_t and friends) at a time when we hadn't yet committed to requiring C99 - (2) it wasn't clear whether 30-bit digits would be a performance win on 32-bit operating systems Twelve years later, reason (1) no longer applies, and I suspect that: - No-one is deliberately using the 15-bit digit option. - There are few machines where using 15-bit digits is faster than using 30-bit digits. But I don't have solid data on either of these suspicions, hence this post. Removing the 15-bit digit option would simplify the code (there's significant mental effort required to ensure we don't break things for 15-bit builds when modifying Objects/longobject.c, and 15-bit builds don't appear to be exercised by the buildbots), remove a hidden compatibility trap (see b.p.o. issue 35037), widen the applicability of the various fast paths for arithmetic operations, and allow for some minor fast-path small-integer optimisations based on the fact that we'd be able to assume that presence of *two* extra bits in the C integer type rather than just one. As an example of the latter: if `a` and `b` are PyLongs that fit in a single digit, then with 15-bit digits and a 16-bit `digit` and `sdigit` type, `a + b` can't currently safely (i.e., without undefined behaviour from overflow) be computed with the C type `sdigit`. With 30-bit digits and a 32-bit `digit` and `sdigit` type, `a + b` is safe. Mark *References* Related b.p.o. issue: https://bugs.python.org/issue45569 MinGW compatibility issue: https://bugs.python.org/issue35037 Introduction of 30-bit digits: https://bugs.python.org/issue4258

10 32

Changing PySequence and PyMapping checks
by Bar Harel 15 Jan '22

15 Jan '22

There's a long time issue of trying to differentiate mappings and sequences in the C-API in a fast and reliable way. Due to recent changes, we might be able to do so at last, by checking tp_flags + str/bytes/bytearray which are considered unique. This might be a breaking change in the Stable ABI promise but one that can be considered a bug fix as the current behavior is lacking. What do you think? bpo: https://bugs.python.org/issue46376 Best regards, Bar Harel

3 2

[RELEASE] Python 3.10.2, 3.9.10, and 3.11.0a4 are now available
by Łukasz Langa 14 Jan '22

14 Jan '22

Hi there, before we begin the usual round of release notes, please do note that the three new versions of Python released today do not contain Windows installers yet. This is temporary, due to a more complex than expected code signing certificate renewal. We’ve held the releases all week while the situation is getting resolved but the urgency of 3.10.2 in particular made us release without the Windows installers after all. We apologize for the inconvenience and are doing everything we can to put the Windows installer in place as soon as possible. We’re rooting for both Ee Durbin and Steve Dower who are helping us resolve this. Thanks for your hard work! Hopefully, by this time next week, this will only be a footnote in release management history. The releases you’re looking at were all cursed in some way. What a way to start 2022! Besides the certificate hold up, Python 3.10.2 is an expedited release (you’ll want to upgrade, read below!), Python 3.11.0a4 had almost 20 (sic, twenty!) release blockers before being finally green, and Python 3.9.10 was made from a new M1 Mac on macOS Monterey which made the usually boring process quite a ride. We’re hoping 2022 won’t be this intense all year! <https://discuss.python.org/t/python-3-10-2-3-9-10-and-3-11-0a4-are-now-avai…>Python 3.10.2 Get it here: https://www.python.org/downloads/release/python-3102/ <https://www.python.org/downloads/release/python-3102/> <https://www.blogger.com/#> This is a special bugfix release ahead of schedule to address a memory leak that was happening on certain function calls when using Cython <https://github.com/cython/cython>. The memory leak consisted of a small constant amount of bytes in certain function calls from Cython code. Although in most cases this was not very noticeable, it was very impactful for long-running applications and certain usage patterns. Check bpo-46347 <https://bugs.python.org/issue46347> for more information. Upgrading existing Python 3.10 installations is highly recommended. Even though this is an expedited release, it still contains over 100 other bug fixes. See the change log <https://docs.python.org/release/3.10.2/whatsnew/changelog.html> for details. The next Python 3.10 maintenance release will be 3.10.3, currently scheduled for 2022-04-04. <https://discuss.python.org/t/python-3-10-2-3-9-10-and-3-11-0a4-are-now-avai…>Python 3.9.10 Get it here: https://www.python.org/downloads/release/python-3910/ <https://www.blogger.com/#> Python 3.9.10 is the ninth maintenance release of the legacy 3.9 series. Note: Python 3.10 is now the latest feature release series of Python 3. Python 3.9 micro-releases enter double digits! There’s been 130 commits since 3.9.9 which is a higher number of fixes for this stage of the life cycle compared to 3.8. See the changelog <https://docs.python.org/release/3.9.10/whatsnew/changelog.html> for details on what changed. As a reminder, on macOS, the default installer is now the new universal2 variant. It’s compatible with Mac OS X 10.9 and newer, including macOS 11 Big Sur and macOS 12 Monterey. Python installed with this variant will work natively on Apple Silicon processors. The next Python 3.9 maintenance release will be 3.9.11, currently scheduled for Pi Day '22 (2022-03-14). <https://discuss.python.org/t/python-3-10-2-3-9-10-and-3-11-0a4-are-now-avai…>Python 3.11.0a4 Get it here: https://www.python.org/downloads/release/python-3110a4/ <https://www.blogger.com/#> Python 3.11 is still in development. This release, 3.11.0a4, is the fourth of seven planned alpha releases. Alpha releases are intended to make it easier to test the current state of new features and bug fixes by the community, as well as to test the release process. During the alpha phase, features may be added up until the start of the beta phase (2022-05-06) and, if necessary, may be modified or deleted up until the release candidate phase (2022-08-01). Please keep in mind that this is a preview release and its use is not recommended for production environments. Many new features for Python 3.11 are still being planned and written. Among the new major new features and changes so far: PEP 657 <https://www.python.org/dev/peps/pep-0657/> – Include Fine-Grained Error Locations in Tracebacks PEP 654 <https://www.python.org/dev/peps/pep-0654/> – Exception Groups and except* The Faster CPython Project <https://github.com/faster-cpython> is already yielding some exciting results: this version of CPython 3.11 is ~ 19% faster on the geometric mean of the PyPerformance benchmarks <>, compared to 3.10.0. (Hey, fellow core developer, if a feature you find important is missing from this list, let Pablo know <mailto:pablogsal@python.org>.) The next pre-release of Python 3.11 will be 3.11.0a5, currently scheduled for Wednesday, 2022-02-02. <https://discuss.python.org/t/python-3-10-2-3-9-10-and-3-11-0a4-are-now-avai…>Python 3.6 is pining for the fjords Python 3.6 is no more. It’s an ex-Python. It has ceased to be. On December 23rd 2021 is has reached its end-of-life phase <https://www.python.org/dev/peps/pep-0494/> after five successful years. It’s been the first truly popular Python 3 release, introducing f-strings to the world and making big improvements to both asyncio (async generators!) and typing (variable annotations!). We’d like to congratulate Ned Deily @nad <https://discuss.python.org/u/nad> on successfully driving the 3.6 series to completion as Release Manager. He’s not fully retired yet, as 3.7, which he is also managing, is still receiving security patches until June 2023. <https://discuss.python.org/t/python-3-10-2-3-9-10-and-3-11-0a4-are-now-avai…>We hope you enjoy the new releases Your friendly release team, Pablo Galindo Salgado @pablogsal <https://discuss.python.org/u/pablogsal> Łukasz Langa @ambv <https://discuss.python.org/u/ambv>

1 0

Summary of Python tracker Issues
by Python tracker 14 Jan '22

14 Jan '22

ACTIVITY SUMMARY (2022-01-07 - 2022-01-14) Python tracker at https://bugs.python.org/ To view or respond to any of the issues listed below, click on the issue. Do NOT respond to this message. Issues counts and deltas: open 7202 ( +3) closed 50906 (+81) total 58108 (+84) Open issues with patches: 2886 Issues opened (48) ================== #32876: HTMLParser raises exception on some inputs https://bugs.python.org/issue32876 reopened by iritkatriel #46298: Automatically check for __slots__-mistakes in Lib https://bugs.python.org/issue46298 opened by ariebovenberg #46304: Unable to iterate over lines in a file without a block of code https://bugs.python.org/issue46304 opened by jaraco #46309: Task created by StreamReaderProtocol gets garbage collected. https://bugs.python.org/issue46309 opened by simwr872 #46311: Clean up PyLong_FromLong and PyLong_FromLongLong https://bugs.python.org/issue46311 opened by mark.dickinson #46312: range() function could accept slice() objects as parameters https://bugs.python.org/issue46312 opened by yota moteuchi #46313: SSLObject does not raise SSLEOFError on OpenSSL 3 https://bugs.python.org/issue46313 opened by alex.gronholm #46315: Add support for WebAssembly System Interface (wasm32-wasi) https://bugs.python.org/issue46315 opened by christian.heimes #46316: Optimize pathlib.Path.iterdir() https://bugs.python.org/issue46316 opened by barneygale #46317: Pathlib.rename isn't robust https://bugs.python.org/issue46317 opened by Oz.Tiram #46318: asyncio and ssl: ResourceWarning: unclosed transport https://bugs.python.org/issue46318 opened by mdk #46323: Use _PyObject_Vectorcall in Modules/_ctypes/callbacks.c https://bugs.python.org/issue46323 opened by hydroflask #46325: Documentation for SubprocessTransport.get_pipe_transport retur https://bugs.python.org/issue46325 opened by xx11mz #46326: 'venv --clear' should prompt user before nuking entire directo https://bugs.python.org/issue46326 opened by alimpfard #46329: Split up the CALL_NO_KW and CALL_KW instructions. https://bugs.python.org/issue46329 opened by Mark.Shannon #46330: Simplify the signature of __exit__ https://bugs.python.org/issue46330 opened by Jelle Zijlstra #46333: ForwardRef.__eq__ does not respect module parameter https://bugs.python.org/issue46333 opened by andreash #46334: Glossary URLs with anchor link no longer jump to definitions https://bugs.python.org/issue46334 opened by trey #46335: asyncio.create_subprocess_exec throws RuntimeError yet still e https://bugs.python.org/issue46335 opened by Clint Olsen #46336: Sixth element of tuple from __reduce__(), inconsistency betwee https://bugs.python.org/issue46336 opened by lev.bishop #46337: urllib.parse: Allow more flexibility in schemes and URL resolu https://bugs.python.org/issue46337 opened by lincolnauster #46338: libc_ver() runtime error when sys.executable is empty https://bugs.python.org/issue46338 opened by allie.hammond #46339: PEG parser segfault from ast.literal_eval https://bugs.python.org/issue46339 opened by gregory.p.smith #46340: DeprecationWarning emitted when running asyncio tests https://bugs.python.org/issue46340 opened by kumaraditya303 #46341: duplicate paragraphs - asyncio Coroutines and Tasks file https://bugs.python.org/issue46341 opened by davem #46343: Add PyErr_GetActiveException and PyErr_SetActiveException https://bugs.python.org/issue46343 opened by iritkatriel #46349: inspect.getdoc() should append parent class method docs when e https://bugs.python.org/issue46349 opened by gregory.p.smith #46350: re.sub, re.Match.expand, etc doesn't allow x, u, U, or N escap https://bugs.python.org/issue46350 opened by bup #46351: Makefile missing '/' for some path names https://bugs.python.org/issue46351 opened by gwolski #46353: 'pydoc -k' fails when some module's loader is not found https://bugs.python.org/issue46353 opened by dlax #46356: [C API] Enforce usage of PyFrame_GetBack() https://bugs.python.org/issue46356 opened by vstinner #46360: Inconsistent import behavior for (unusual) submodules https://bugs.python.org/issue46360 opened by eric.snow #46361: Small ints aren't always cached properly https://bugs.python.org/issue46361 opened by brandtbucher #46363: Two typos in versions 3.7 document translation of zh_CN https://bugs.python.org/issue46363 opened by perlang #46364: asyncio subprocess cannot read from /dev/stdin https://bugs.python.org/issue46364 opened by xoph #46367: multiprocessing's "spawn" doesn't actually use spawn https://bugs.python.org/issue46367 opened by jakirkham #46368: faulthandler: add the ability to dump all interpreters, not on https://bugs.python.org/issue46368 opened by vstinner #46369: get_type_hints does not evaluate ForwardRefs inside NewType https://bugs.python.org/issue46369 opened by andreash #46371: A better way to resolve ForwardRefs in type aliases across mod https://bugs.python.org/issue46371 opened by andreash #46372: int/float specializations should mutate the LHS in-place when https://bugs.python.org/issue46372 opened by brandtbucher #46373: TypedDict and NamedTuple do not evaluate cross-module ForwardR https://bugs.python.org/issue46373 opened by andreash #46374: Assertion failed in ceval.c https://bugs.python.org/issue46374 opened by kumaraditya303 #46375: io.BytesIO does not have peek() https://bugs.python.org/issue46375 opened by marcelm #46376: PyMapping_Check returns 1 for list https://bugs.python.org/issue46376 opened by aviramha #46377: TimedRotatingFileHandler "midnight" misleading when interval > https://bugs.python.org/issue46377 opened by mschiess #46378: Experiment with LLVM BOLT binary optimizer https://bugs.python.org/issue46378 opened by corona10 #46379: itertools.product reference implementation creates temporaries https://bugs.python.org/issue46379 opened by mwallerb #46380: `test_functools.TestLRU` must not use `functools` module dire https://bugs.python.org/issue46380 opened by sobolevn Most recent 15 issues with no replies (15) ========================================== #46380: `test_functools.TestLRU` must not use `functools` module dire https://bugs.python.org/issue46380 #46378: Experiment with LLVM BOLT binary optimizer https://bugs.python.org/issue46378 #46375: io.BytesIO does not have peek() https://bugs.python.org/issue46375 #46373: TypedDict and NamedTuple do not evaluate cross-module ForwardR https://bugs.python.org/issue46373 #46372: int/float specializations should mutate the LHS in-place when https://bugs.python.org/issue46372 #46371: A better way to resolve ForwardRefs in type aliases across mod https://bugs.python.org/issue46371 #46367: multiprocessing's "spawn" doesn't actually use spawn https://bugs.python.org/issue46367 #46341: duplicate paragraphs - asyncio Coroutines and Tasks file https://bugs.python.org/issue46341 #46337: urllib.parse: Allow more flexibility in schemes and URL resolu https://bugs.python.org/issue46337 #46329: Split up the CALL_NO_KW and CALL_KW instructions. https://bugs.python.org/issue46329 #46325: Documentation for SubprocessTransport.get_pipe_transport retur https://bugs.python.org/issue46325 #46317: Pathlib.rename isn't robust https://bugs.python.org/issue46317 #46316: Optimize pathlib.Path.iterdir() https://bugs.python.org/issue46316 #46311: Clean up PyLong_FromLong and PyLong_FromLongLong https://bugs.python.org/issue46311 #46298: Automatically check for __slots__-mistakes in Lib https://bugs.python.org/issue46298 Most recent 15 issues waiting for review (15) ============================================= #46380: `test_functools.TestLRU` must not use `functools` module dire https://bugs.python.org/issue46380 #46379: itertools.product reference implementation creates temporaries https://bugs.python.org/issue46379 #46377: TimedRotatingFileHandler "midnight" misleading when interval > https://bugs.python.org/issue46377 #46376: PyMapping_Check returns 1 for list https://bugs.python.org/issue46376 #46372: int/float specializations should mutate the LHS in-place when https://bugs.python.org/issue46372 #46368: faulthandler: add the ability to dump all interpreters, not on https://bugs.python.org/issue46368 #46364: asyncio subprocess cannot read from /dev/stdin https://bugs.python.org/issue46364 #46361: Small ints aren't always cached properly https://bugs.python.org/issue46361 #46353: 'pydoc -k' fails when some module's loader is not found https://bugs.python.org/issue46353 #46343: Add PyErr_GetActiveException and PyErr_SetActiveException https://bugs.python.org/issue46343 #46339: PEG parser segfault from ast.literal_eval https://bugs.python.org/issue46339 #46337: urllib.parse: Allow more flexibility in schemes and URL resolu https://bugs.python.org/issue46337 #46333: ForwardRef.__eq__ does not respect module parameter https://bugs.python.org/issue46333 #46316: Optimize pathlib.Path.iterdir() https://bugs.python.org/issue46316 #46315: Add support for WebAssembly System Interface (wasm32-wasi) https://bugs.python.org/issue46315 Top 10 most discussed issues (10) ================================= #46070: [subinterpreters] crash when importing _sre in subinterpreters https://bugs.python.org/issue46070 18 msgs #46291: [doc] First argument to raise can also be BaseException https://bugs.python.org/issue46291 13 msgs #37295: Possible optimizations for math.comb() https://bugs.python.org/issue37295 10 msgs #39298: add BLAKE3 to hashlib https://bugs.python.org/issue39298 10 msgs #46249: [sqlite3] move set lastrowid out of the query loop and enable https://bugs.python.org/issue46249 8 msgs #46279: [docs] Minor information-ordering issue in __main__ doc https://bugs.python.org/issue46279 8 msgs #40479: Port _hashlib to OpenSSL 3.0.0 https://bugs.python.org/issue40479 7 msgs #46304: Unable to iterate over lines in a file without a block of code https://bugs.python.org/issue46304 7 msgs #46313: SSLObject does not raise SSLEOFError on OpenSSL 3 https://bugs.python.org/issue46313 7 msgs #46142: python --help output is too long https://bugs.python.org/issue46142 6 msgs Issues closed (75) ================== #23183: timeit CLI best of 3: undocumented output format https://bugs.python.org/issue23183 closed by iritkatriel #23819: test_asyncio fails when run under -O https://bugs.python.org/issue23819 closed by asvetlov #24650: Error in yield expression documentation https://bugs.python.org/issue24650 closed by iritkatriel #27273: subprocess.run(cmd, input='text') should pass universal_newlin https://bugs.python.org/issue27273 closed by gregory.p.smith #28546: [doc] Clarify setting pdb breakpoints https://bugs.python.org/issue28546 closed by iritkatriel #31472: "Emulating callable objects" documentation misleading https://bugs.python.org/issue31472 closed by iritkatriel #32679: concurrent.futures should store full sys.exc_info() https://bugs.python.org/issue32679 closed by iritkatriel #32996: Improve What's New in 3.7 https://bugs.python.org/issue32996 closed by iritkatriel #37591: test_concurrent_future failed https://bugs.python.org/issue37591 closed by iritkatriel #37595: Python 3.7.4 does not build on Raspbian Buster with optimizati https://bugs.python.org/issue37595 closed by christian.heimes #38204: Cannot compile on RPi with optimizations https://bugs.python.org/issue38204 closed by iritkatriel #39316: settrace skips lines when chaining methods without arguments https://bugs.python.org/issue39316 closed by iritkatriel #40064: py38: document xml.etree.cElementTree will be removed in 3.9 https://bugs.python.org/issue40064 closed by iritkatriel #44133: Some C-API symbols (e.g. Py_FrozenMain) are not always exporte https://bugs.python.org/issue44133 closed by vstinner #44577: Probably defect in Python 3.7.11 https://bugs.python.org/issue44577 closed by iritkatriel #44594: AsyncExitStack.enter_async_context() is mishandling exception https://bugs.python.org/issue44594 closed by iritkatriel #45331: Can create enum of ranges, cannot create range enum. Range sho https://bugs.python.org/issue45331 closed by AlexWaygood #45729: [doc] "history and license" link has wrong target https://bugs.python.org/issue45729 closed by mdk #45786: Avoid allocating when exiting frame; it may be unsafe. https://bugs.python.org/issue45786 closed by Mark.Shannon #45797: AMD64 Arch Linux Asan Debug buildbot sometimes hangs before te https://bugs.python.org/issue45797 closed by vstinner #46006: [subinterpreter] _PyUnicode_EqualToASCIIId() issue with subint https://bugs.python.org/issue46006 closed by vstinner #46162: Make `builtins.property` generic https://bugs.python.org/issue46162 closed by sobolevn #46203: Add timeout for Windows build steps https://bugs.python.org/issue46203 closed by mark.dickinson #46205: test.libregrtest: Race condition in runtest_mp leads to hangs https://bugs.python.org/issue46205 closed by corona10 #46216: spurious link to os.system() from os.times() documentation ent https://bugs.python.org/issue46216 closed by iritkatriel #46217: 3.11 build failure on Win10: new _freeze_module changes? https://bugs.python.org/issue46217 closed by steve.dower #46235: Do all ref-counting at once for sequence multiplication https://bugs.python.org/issue46235 closed by tim.peters #46237: Incorrect line reported in syntax error https://bugs.python.org/issue46237 closed by pablogsal #46244: typing._TypeVarLike missing __slots__ https://bugs.python.org/issue46244 closed by AlexWaygood #46253: C API documentation of Py_UNICODE_* character properties macro https://bugs.python.org/issue46253 closed by benjamin.peterson #46261: [doc] fix inaccuracies in sqlite3.Cursor.lastrowid docs https://bugs.python.org/issue46261 closed by erlendaasland #46269: '__new__' is never shown in `dir(SomeEnum)` https://bugs.python.org/issue46269 closed by sobolevn #46270: Comparison operators in Python Tutorial 5.7 https://bugs.python.org/issue46270 closed by rhettinger #46272: Fix bitwise and logical terminology in python.gram https://bugs.python.org/issue46272 closed by rhettinger #46285: http/server.py wont respect its protocol_version https://bugs.python.org/issue46285 closed by openalmeida #46289: AST: FomattedValue conversion's default value should be -1 https://bugs.python.org/issue46289 closed by BTaskaya #46290: Parameter names are inaccurate in dataclasses docs https://bugs.python.org/issue46290 closed by taleinat #46296: Unreachable condition: `if enum_class._member_type_ is object` https://bugs.python.org/issue46296 closed by ethan.furman #46297: Python interpreter crashes on bootup with multiple PythonPaths https://bugs.python.org/issue46297 closed by steve.dower #46299: Improve several exception handling practices in `test_descr.py https://bugs.python.org/issue46299 closed by corona10 #46300: zlib.compress level and wbits args are shown as keyword-only i https://bugs.python.org/issue46300 closed by andrei.avk #46301: Enum tests: One branch is not covered in `Enum._convert_` https://bugs.python.org/issue46301 closed by ethan.furman #46302: IndexError inside list comprehension + workaround https://bugs.python.org/issue46302 closed by steven.daprano #46303: _Py_stat and _Py_wstat using incorrect type for status argumen https://bugs.python.org/issue46303 closed by vstinner #46305: SyntaxError when using dict key in fstring https://bugs.python.org/issue46305 closed by Samisafool #46306: Suspicious operation in `doctest.py`: `None - 1` https://bugs.python.org/issue46306 closed by eric.smith #46307: string.Template should allow inspection of identifiers https://bugs.python.org/issue46307 closed by AlexWaygood #46308: Unportable test(1) operator in configure script https://bugs.python.org/issue46308 closed by vstinner #46310: Simplify `for` loop in `.close()` method in `asyncio/windows_e https://bugs.python.org/issue46310 closed by asvetlov #46314: Stray RESUME opcode for unused lambda https://bugs.python.org/issue46314 closed by Mark.Shannon #46319: datetime.utcnow() should return a timezone aware datetime https://bugs.python.org/issue46319 closed by p-ganssle #46320: runtime/interp/thread state refactoring leads to segmentation https://bugs.python.org/issue46320 closed by Quentin.Pradet #46321: Don't need delineators on lists https://bugs.python.org/issue46321 closed by Dennis Sweeney #46322: Invalid file path of SSLKEYLOGFILE throw FileNotFoundError https://bugs.python.org/issue46322 closed by ghaaf #46324: 'import traceback' Causes a Crash https://bugs.python.org/issue46324 closed by steven.daprano #46327: `test_enum` contains tests for older versions of python https://bugs.python.org/issue46327 closed by sobolevn #46328: add sys.exception() https://bugs.python.org/issue46328 closed by iritkatriel #46331: 3.11: tracing revisits class line after class docstring https://bugs.python.org/issue46331 closed by erlendaasland #46332: Use raise..from in logging/config instead of assigning __cause https://bugs.python.org/issue46332 closed by iritkatriel #46342: Make @final introspectable at runtime https://bugs.python.org/issue46342 closed by AlexWaygood #46344: 3.11: except/else/if/raise traced incorrectly https://bugs.python.org/issue46344 closed by iritkatriel #46345: Add an explicit test for `get_type_hints` for a class field wi https://bugs.python.org/issue46345 closed by sobolevn #46346: New compilation warnings on Windows https://bugs.python.org/issue46346 closed by vstinner #46347: memory leak in PyEval_EvalCodeEx https://bugs.python.org/issue46347 closed by yselivanov #46348: Modernize `test_typing` https://bugs.python.org/issue46348 closed by AlexWaygood #46352: Spam https://bugs.python.org/issue46352 closed by Dennis Sweeney #46354: AttributeError: module 'collections' has no attribute 'Mapping https://bugs.python.org/issue46354 closed by AlexWaygood #46355: [C API] Document PyFrameObject and PyThreadState changes and e https://bugs.python.org/issue46355 closed by vstinner #46357: socket module fix warning build on FreeBSD https://bugs.python.org/issue46357 closed by devnexen #46358: Modernize `test_asyncio/test_base_events.py` https://bugs.python.org/issue46358 closed by AlexWaygood #46359: Continue to modernize `test_typing.py` https://bugs.python.org/issue46359 closed by sobolevn #46362: os.path.abspath() needs more normalization on Windows https://bugs.python.org/issue46362 closed by steve.dower #46365: _ curses module is not installed https://bugs.python.org/issue46365 closed by simon28li #46366: Recursively propagate the mode, in os.makedirs https://bugs.python.org/issue46366 closed by dcasier #46370: Move runtime static init to its own header file. https://bugs.python.org/issue46370 closed by eric.snow

1 0

[PSA] OpenSSL 3.0 support is preliminary and experimental
by Christian Heimes 12 Jan '22

12 Jan '22

Hi, I would like to remind everybody that Python's support for OpenSSL 3.0 is preliminary [1]. Python compiles with OpenSSL 3.0.0 and simple code kinda works. However there are known performance regressions, missing features (e.g. usedforsecurity flag), and potential bugs cause by API incompatibilities. Due to the experimental state I advise against using Python with OpenSSL 3.0 in production. It may take a while until Python gains full support for the next version of OpenSSL. I have shifted my personal OSS time to more fun topics like performance and WASM. My work time is currently limited, too. Christian [1] https://docs.python.org/3/whatsnew/3.10.html#ssl

4 5