Mailman 3 March 2022 - Python-Dev

Summary of Python tracker Issues
by Python tracker March 25, 2022

March 25, 2022

ACTIVITY SUMMARY (2022-03-18 - 2022-03-25) 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 7145 (-20) closed 51702 (+82) total 58847 (+62) Open issues with patches: 2903 Issues opened (53) ================== #45618: Documentation builds fail with Sphinx 3.2.1 https://bugs.python.org/issue45618 reopened by Maciej Olko #46429: Merge all deepfrozen files into one https://bugs.python.org/issue46429 reopened by kumaraditya303 #46864: Deprecate ob_shash in BytesObject https://bugs.python.org/issue46864 reopened by christian.heimes #46975: clang: error: linker command failed with exit code 1 (use -v t https://bugs.python.org/issue46975 reopened by jaraco #47060: importlib.metadata.version can return None https://bugs.python.org/issue47060 opened by David Robertson #47061: Deprecate modules listed in PEP 594 https://bugs.python.org/issue47061 opened by brett.cannon #47063: SimpleHTTPRequestHandler has hard coded index page list. https://bugs.python.org/issue47063 opened by myronww #47064: thread QOS attribute on macOS https://bugs.python.org/issue47064 opened by ronaldoussoren #47065: test_curses fails if terminal defaults to bright white text (1 https://bugs.python.org/issue47065 opened by ncoghlan #47067: Add vectorcall for generic alias object https://bugs.python.org/issue47067 opened by penguin_wwy #47068: Improve __repr__ of TypeVar https://bugs.python.org/issue47068 opened by ktbarrett #47069: socket._GLOBAL_DEFAULT_TIMEOUT being an object() makes for ugl https://bugs.python.org/issue47069 opened by ferdnyc #47070: Improve performance of array_inplace_repeat https://bugs.python.org/issue47070 opened by pieter.eendebak #47071: asyncio proactor udp transport stops responding after send to https://bugs.python.org/issue47071 opened by esoma #47072: Database corruption with the shelve module https://bugs.python.org/issue47072 opened by HubTou #47073: Solution for recursion error when comparing dataclass objects https://bugs.python.org/issue47073 opened by dankner #47074: Convenient `simplefilter()` in `warnings.catch_warnings()` https://bugs.python.org/issue47074 opened by Zac Hatfield-Dodds #47075: test_multiprocessing_spawn leaks QueueManager dangling process https://bugs.python.org/issue47075 opened by vstinner #47077: test_asyncio ignores exception in _ProactorBasePipeTransport._ https://bugs.python.org/issue47077 opened by vstinner #47078: test_ctypes modified files on aarch64 Fedora Rawhide 3.9: ldco https://bugs.python.org/issue47078 opened by vstinner #47079: Integral.denominator shouldn't return an int https://bugs.python.org/issue47079 opened by Sergey.Kirpichev #47082: No protection: `import numpy` in two different threads can lea https://bugs.python.org/issue47082 opened by jhgoebbert #47083: The __complex__ method is missing from the complex, float, and https://bugs.python.org/issue47083 opened by maggyero #47086: Include HTML docs with Windows installer instead of CHM https://bugs.python.org/issue47086 opened by steve.dower #47087: Implement PEP 655 (Required/NotRequired) https://bugs.python.org/issue47087 opened by JelleZijlstra #47088: Implement PEP 675 (LiteralString) https://bugs.python.org/issue47088 opened by JelleZijlstra #47089: Avoid sporadic failure of test_compileall on Windows https://bugs.python.org/issue47089 opened by jkloth #47090: Make zlib required on all platforms (simplifies code) https://bugs.python.org/issue47090 opened by gregory.p.smith #47091: Improve performance of list and tuple repeat methods https://bugs.python.org/issue47091 opened by pieter.eendebak #47092: [C API] Add PyFrame_GetVar(frame, name) function https://bugs.python.org/issue47092 opened by vstinner #47093: Documentation Fix: Remove .bat when activating venv on windows https://bugs.python.org/issue47093 opened by jovinator #47095: Prefer libb2 over vendored copy of blake2 https://bugs.python.org/issue47095 opened by christian.heimes #47096: Use the PDH API in WindowsLoadTracker https://bugs.python.org/issue47096 opened by eryksun #47097: Document PEP 646 https://bugs.python.org/issue47097 opened by JelleZijlstra #47098: sha3: Replace Keccak Code Package with tiny_sha3 https://bugs.python.org/issue47098 opened by christian.heimes #47099: Replace with_traceback() with exception chaining and reraising https://bugs.python.org/issue47099 opened by arhadthedev #47100: Help text for Store Python shows "null" under usage https://bugs.python.org/issue47100 opened by steve.dower #47101: hashlib.algorithms_available lists algorithms that are not ava https://bugs.python.org/issue47101 opened by christian.heimes #47102: explore hashlib use of the Linux Kernel CryptoAPI https://bugs.python.org/issue47102 opened by gregory.p.smith #47103: Copy pgort140.dll when building for PGO https://bugs.python.org/issue47103 opened by steve.dower #47105: [Doc] grp cites pwd.h instead of grp.h https://bugs.python.org/issue47105 opened by aphedges #47106: test_asyncio: test_shutdown_cleanly() failed with timeout (10 https://bugs.python.org/issue47106 opened by vstinner #47108: asyncio-stream does not document exceptions https://bugs.python.org/issue47108 opened by christian.bodt #47109: Old ctypes.macholib tests are ignored by python -m test https://bugs.python.org/issue47109 opened by arhadthedev #47110: Refactor bytearray strip methods https://bugs.python.org/issue47110 opened by pieter.eendebak #47111: ENUM TypeError using mixing https://bugs.python.org/issue47111 opened by benyamin621 #47115: Documentation inconsistency with the stable ABI https://bugs.python.org/issue47115 opened by Crowthebird #47116: Use _PyLong_FromUnsignedChar in bytearrayobject.c https://bugs.python.org/issue47116 opened by pieter.eendebak #47117: repl segfaults on non utf-8 input https://bugs.python.org/issue47117 opened by jooon #47118: test_run_keeps_context in test_asyncio fails https://bugs.python.org/issue47118 opened by serhiy.storchaka #47119: test_freeze_simple_script in test_tools fails https://bugs.python.org/issue47119 opened by serhiy.storchaka #47120: Make all jump opcodes relative https://bugs.python.org/issue47120 opened by iritkatriel #47121: math.isfinite() can raise exception when called on a number https://bugs.python.org/issue47121 opened by tfish2 Most recent 15 issues with no replies (15) ========================================== #47120: Make all jump opcodes relative https://bugs.python.org/issue47120 #47119: test_freeze_simple_script in test_tools fails https://bugs.python.org/issue47119 #47116: Use _PyLong_FromUnsignedChar in bytearrayobject.c https://bugs.python.org/issue47116 #47115: Documentation inconsistency with the stable ABI https://bugs.python.org/issue47115 #47111: ENUM TypeError using mixing https://bugs.python.org/issue47111 #47110: Refactor bytearray strip methods https://bugs.python.org/issue47110 #47109: Old ctypes.macholib tests are ignored by python -m test https://bugs.python.org/issue47109 #47108: asyncio-stream does not document exceptions https://bugs.python.org/issue47108 #47106: test_asyncio: test_shutdown_cleanly() failed with timeout (10 https://bugs.python.org/issue47106 #47105: [Doc] grp cites pwd.h instead of grp.h https://bugs.python.org/issue47105 #47103: Copy pgort140.dll when building for PGO https://bugs.python.org/issue47103 #47100: Help text for Store Python shows "null" under usage https://bugs.python.org/issue47100 #47098: sha3: Replace Keccak Code Package with tiny_sha3 https://bugs.python.org/issue47098 #47096: Use the PDH API in WindowsLoadTracker https://bugs.python.org/issue47096 #47089: Avoid sporadic failure of test_compileall on Windows https://bugs.python.org/issue47089 Most recent 15 issues waiting for review (15) ============================================= #47120: Make all jump opcodes relative https://bugs.python.org/issue47120 #47118: test_run_keeps_context in test_asyncio fails https://bugs.python.org/issue47118 #47116: Use _PyLong_FromUnsignedChar in bytearrayobject.c https://bugs.python.org/issue47116 #47110: Refactor bytearray strip methods https://bugs.python.org/issue47110 #47109: Old ctypes.macholib tests are ignored by python -m test https://bugs.python.org/issue47109 #47105: [Doc] grp cites pwd.h instead of grp.h https://bugs.python.org/issue47105 #47103: Copy pgort140.dll when building for PGO https://bugs.python.org/issue47103 #47101: hashlib.algorithms_available lists algorithms that are not ava https://bugs.python.org/issue47101 #47099: Replace with_traceback() with exception chaining and reraising https://bugs.python.org/issue47099 #47098: sha3: Replace Keccak Code Package with tiny_sha3 https://bugs.python.org/issue47098 #47097: Document PEP 646 https://bugs.python.org/issue47097 #47095: Prefer libb2 over vendored copy of blake2 https://bugs.python.org/issue47095 #47091: Improve performance of list and tuple repeat methods https://bugs.python.org/issue47091 #47090: Make zlib required on all platforms (simplifies code) https://bugs.python.org/issue47090 #47089: Avoid sporadic failure of test_compileall on Windows https://bugs.python.org/issue47089 Top 10 most discussed issues (10) ================================= #47086: Include HTML docs with Windows installer instead of CHM https://bugs.python.org/issue47086 13 msgs #44493: Missing terminated NUL in the length of sockaddr_un https://bugs.python.org/issue44493 12 msgs #25489: sys.exit() caught in async event loop exception handler https://bugs.python.org/issue25489 9 msgs #47006: PEP 646: Decide on substitution behavior https://bugs.python.org/issue47006 9 msgs #46070: [subinterpreters] crash when importing _sre in subinterpreters https://bugs.python.org/issue46070 7 msgs #47031: math.nan should note that NANs do not compare equal to anythin https://bugs.python.org/issue47031 7 msgs #47067: Add vectorcall for generic alias object https://bugs.python.org/issue47067 7 msgs #47000: Make encoding="locale" uses locale encoding even in UTF-8 mode https://bugs.python.org/issue47000 6 msgs #47064: thread QOS attribute on macOS https://bugs.python.org/issue47064 6 msgs #47078: test_ctypes modified files on aarch64 Fedora Rawhide 3.9: ldco https://bugs.python.org/issue47078 6 msgs Issues closed (76) ================== #1554: socketmodule cleanups: allow the use of keywords in socket fun https://bugs.python.org/issue1554 closed by iritkatriel #2604: doctest.DocTestCase fails when run repeatedly https://bugs.python.org/issue2604 closed by JelleZijlstra #5888: mmap enhancement - resize with sequence notation https://bugs.python.org/issue5888 closed by iritkatriel #8891: shutil: sort files before archiving for consistency https://bugs.python.org/issue8891 closed by iritkatriel #11160: ZipFile.comment expects bytes https://bugs.python.org/issue11160 closed by iritkatriel #12029: [doc] clarify that except does not match virtual subclasses of https://bugs.python.org/issue12029 closed by iritkatriel #13197: subprocess: move shell arguments to a separate keyword param https://bugs.python.org/issue13197 closed by iritkatriel #18217: Deprecate and remove gettext.install https://bugs.python.org/issue18217 closed by iritkatriel #18241: Add unique option to heapq functions https://bugs.python.org/issue18241 closed by rhettinger #19961: MacOSX: Tkinter build failure when building without command-li https://bugs.python.org/issue19961 closed by ned.deily #22013: Add at least minimal support for thread groups https://bugs.python.org/issue22013 closed by iritkatriel #22722: inheritable pipes are unwieldy without os.pipe2 https://bugs.python.org/issue22722 closed by iritkatriel #23647: imaplib.py MAXLINE value is too low for gmail https://bugs.python.org/issue23647 closed by iritkatriel #23691: re.finditer iterator is not reentrant, but doesn't protect aga https://bugs.python.org/issue23691 closed by serhiy.storchaka #26019: collections.abc documentation incomplete https://bugs.python.org/issue26019 closed by rhettinger #26362: Approved API for creating a temporary file path https://bugs.python.org/issue26362 closed by iritkatriel #27165: Skip callables when displaying exception fields in cgitb https://bugs.python.org/issue27165 closed by iritkatriel #28948: Facing issue while running Python 3.6.0rc1 windows x86-64 web https://bugs.python.org/issue28948 closed by iritkatriel #29067: Source archive: wrong directory attributes https://bugs.python.org/issue29067 closed by iritkatriel #32927: Add typeshed documentation for unittest.TestCase._feedErrorsTo https://bugs.python.org/issue32927 closed by iritkatriel #33028: [doc] tempfile.TemporaryDirectory documentation improvements https://bugs.python.org/issue33028 closed by iritkatriel #34071: asyncio: repr(task) raises AssertionError for coros which loop https://bugs.python.org/issue34071 closed by iritkatriel #34406: Typo in documentation https://bugs.python.org/issue34406 closed by iritkatriel #35577: side_effect mocked method lose reference to instance https://bugs.python.org/issue35577 closed by iritkatriel #37665: threading.TIMEOUT_MAX integer overflow on 32-bit builds with t https://bugs.python.org/issue37665 closed by iritkatriel #37789: Update doc strings for test.bytecode_helper https://bugs.python.org/issue37789 closed by iritkatriel #38256: binascii.crc32 is not 64-bit clean when USE_ZLIB_CRC32 https://bugs.python.org/issue38256 closed by gregory.p.smith #38307: Add .end_lineno attribute to pyclbr _Objects https://bugs.python.org/issue38307 closed by iritkatriel #39298: add BLAKE3 to hashlib https://bugs.python.org/issue39298 closed by larry #39394: re: DeprecationWarning for `flag not at the start of expressio https://bugs.python.org/issue39394 closed by serhiy.storchaka #39640: fall back os.fdatasync() to fsync() on POSIX systems without f https://bugs.python.org/issue39640 closed by gregory.p.smith #40074: pickle module dump and load: add support for string file names https://bugs.python.org/issue40074 closed by serhiy.storchaka #40296: help(list[int]) fails https://bugs.python.org/issue40296 closed by serhiy.storchaka #40320: Add ability to specify instance of contextvars context to Task https://bugs.python.org/issue40320 closed by asvetlov #40666: TarFile.add does not support pathlib.Path as a value to first https://bugs.python.org/issue40666 closed by iritkatriel #41864: Compiler error in _zoneinfo.c:1227: error: #pragma GCC diagnos https://bugs.python.org/issue41864 closed by iritkatriel #42369: Reading ZipFile not thread-safe https://bugs.python.org/issue42369 closed by serhiy.storchaka #42528: Improve the docs of most Py*_Check{,Exact} API calls https://bugs.python.org/issue42528 closed by iritkatriel #42871: Regex compilation crashed if I change order of alternatives un https://bugs.python.org/issue42871 closed by serhiy.storchaka #42884: array.index() missing start and end https://bugs.python.org/issue42884 closed by iritkatriel #42885: Optimize re.search() for \A (and maybe ^) https://bugs.python.org/issue42885 closed by serhiy.storchaka #42917: Block stack size for frame objects should be dynamically sizab https://bugs.python.org/issue42917 closed by Mark.Shannon #44336: Windows buildbots hang after fatal exit https://bugs.python.org/issue44336 closed by steve.dower #44832: Compiler detection is not strict enough https://bugs.python.org/issue44832 closed by iritkatriel #45098: asyncio.CancelledError should contain more information on canc https://bugs.python.org/issue45098 closed by asvetlov #45214: implement LOAD_NONE opcode https://bugs.python.org/issue45214 closed by iritkatriel #45979: Fix Tkinter tests with old Tk https://bugs.python.org/issue45979 closed by serhiy.storchaka #46013: Confusing period in object.__hash__ doc https://bugs.python.org/issue46013 closed by iritkatriel #46073: ast.unparse produces: 'FunctionDef' object has no attribute 'l https://bugs.python.org/issue46073 closed by iritkatriel #46125: Test the preferred API instead of relying on legacy for covera https://bugs.python.org/issue46125 closed by jaraco #46382: dataclass(slots=True) does not account for slots in base class https://bugs.python.org/issue46382 closed by eric.smith #46769: Improve documentation for `typing.TypeVar` https://bugs.python.org/issue46769 closed by JelleZijlstra #46774: Importlib.metadata.version picks first distribution not latest https://bugs.python.org/issue46774 closed by jaraco #46788: regrtest fails to start on missing performance counter names https://bugs.python.org/issue46788 closed by steve.dower #46829: Confusing CancelError message if multiple cancellations are sc https://bugs.python.org/issue46829 closed by gvanrossum #47012: Speed up iteration of bytes and bytearray https://bugs.python.org/issue47012 closed by kumaraditya303 #47014: ProactorEventLoop ignores Ctrl+C after closing unrelated loop https://bugs.python.org/issue47014 closed by asvetlov #47015: Update tests from asyncore to asyncio https://bugs.python.org/issue47015 closed by asvetlov #47037: Build problems on Windows https://bugs.python.org/issue47037 closed by steve.dower #47040: Fix confusing versionchanged note in crc32 and adler32 https://bugs.python.org/issue47040 closed by gregory.p.smith #47048: Python 3.10.3 + Osx Lion : fatal error (make) signalmodule or https://bugs.python.org/issue47048 closed by ned.deily #47055: `issubclass` on two different subclasses of abstract base clas https://bugs.python.org/issue47055 closed by mobiusklein #47057: Use FASTCALL convention for FutureIter.throw() https://bugs.python.org/issue47057 closed by asvetlov #47062: Implement asyncio.Runner context manager https://bugs.python.org/issue47062 closed by asvetlov #47066: Convert a warning about flags not at the start of the regular https://bugs.python.org/issue47066 closed by serhiy.storchaka #47076: test_asyncio: test_get_cancelled() fails randomly on x86-64 ma https://bugs.python.org/issue47076 closed by asvetlov #47080: Use atomic groups to simplify fnmatch https://bugs.python.org/issue47080 closed by tim.peters #47081: Replace "qualifiers" with "quantifiers" in the re module docum https://bugs.python.org/issue47081 closed by serhiy.storchaka #47084: Statically allocated Unicode objects leak cached representatio https://bugs.python.org/issue47084 closed by vstinner #47085: missing frame.f_lineno on JUMP_ABSOLUTE https://bugs.python.org/issue47085 closed by Mark.Shannon #47094: index doesn't change while looping through same elements in a https://bugs.python.org/issue47094 closed by Dennis Sweeney #47104: Rewrite asyncio.to_thread tests to use IsolatedAsyncioTestCase https://bugs.python.org/issue47104 closed by asvetlov #47107: Navigation bar in python3103.chm is broken https://bugs.python.org/issue47107 closed by steve.dower #47112: RuntimeError: expected scalar type Long but found Int https://bugs.python.org/issue47112 closed by zach.ware #47113: PermissionError on pip uninstall https://bugs.python.org/issue47113 closed by christian.heimes #47114: random.choice and random.choices have different distributions https://bugs.python.org/issue47114 closed by rhettinger

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Python Language Summit at PyCon 2022 in Salt Lake City
by Mariatta March 24, 2022

March 24, 2022

We're excited to announce that the signups for Python Language Summit at PyCon 2022 are now open. Full details at: https://us.pycon.org/2022/events/language-summit/ After two years of virtual/online summit, we will be returning to in-person format. We will be following the health and safety guidelines at PyCon US: https://us.pycon.org/2022/attend/health-safety-guidelines/ *TL;DR* When: Wednesday, April 27, 2022 Where: Salt Palace Convention Center, room TBD Sign up to attend: https://forms.gle/CS8B6wJdcaN3rtWV8 <https://forms.gle/CS8B6wJdcaN3rtWV8> (closes March 25 th, 2022 AoE) Sign up to discuss a topic: https://forms.gle/LAFE6TTYi15jL5RaA (closes March 25th, 2022 AoE) *Who can attend* We welcome Python core developers and triage team members, active core contributors to Python and alternative Python implementations, and anyone else who has a topic to discuss with core developers. *Who can propose a discussion topic* If you have discussion items; seeking consensus; awaiting decision on a PEP; needing help with your core dev work; or have specific questions that need answers from core developers, please submit a proposal. According to feedback, our audience prefers more discussions and shorter talks. In your proposal, please include: - why is this topic relevant to the core developers - what is needed from core developers out of this topic This year's event will be covered by Alex Waygood. Detailed summary of the event will be published at The PSF's Blog. *Is this event recorded? Can I watch the livestream?* No, there will be no recording and no livestream available. If you'd like to participate in discussions, please sign up to attend. If you'd like to listen in, please wait for Alex's blog posts after the summit. Thank you, Mariatta, Łukasz, & Senthil

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[RELEASE] Python 3.10.4 and 3.9.12 are now available out of schedule
by Łukasz Langa March 24, 2022

March 24, 2022

Did anybody say cursed releases <https://discuss.python.org/t/python-3-10-3-3-9-11-3-8-13-and-3-7-13-are-now…>? Well, it turns out that 3.10.3 and 3.9.11 both shipped a regression which caused those versions not to build on Red Hat Enterprise Linux 6. While this 11-year-old version is now out of maintenance support <https://access.redhat.com/support/policy/updates/errata>, it’s still used in production workloads. Some of those rely on Python 3.9 and/or 3.10. In particular, our own manylinux2010 <https://github.com/pypa/manylinux/tree/manylinux2010_x86_64_centos6_no_vsys…> image used to build widely compatible Linux wheels is based on CentOS 6. (Don’t worry, we do have newer manylinux* variants, see PEP 599 <https://peps.python.org/pep-0599/> and PEP 600 <https://peps.python.org/pep-0600/> for details.) Due to the out-of-schedule release, the respective versions released today contain a very limited set of changes. Python 3.9.12 only contains 12 other bug fixes on top of 3.9.11. Python 3.10.4 only contains 10 other bug fixes on top of 3.10.3. Get 3.10.4 here: Python Release 3.10.4 | Python.org <https://www.python.org/downloads/release/python-3104> Get 3.9.12 here: Python Release 3.9.12 | Python.org <https://www.python.org/downloads/release/python-3912> Hopefully, the third time’s a charm and we’ll return no sooner than May with the regularly scheduled bug fix releases of 3.9 and 3.10. <https://discuss.python.org/t/python-3-10-4-and-3-9-12-are-now-available-out…>We hope you enjoy the new releases Your friendly release team, Łukasz Langa @ambv <https://discuss.python.org/u/ambv> Pablo Galindo Salgado @pablogsal <https://discuss.python.org/u/pablogsal> Ned Deily @nad <https://discuss.python.org/u/nad> Steve Dower @steve.dower <https://discuss.python.org/u/steve.dower>

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Accepting PEP 675 - Arbitrary Literal String Type
by Gregory P. Smith March 21, 2022

March 21, 2022

On behalf of the Python Steering Council, we are accepting PEP 675 - Arbitrary Literal String Type <https://peps.python.org/pep-0675/>. TL;DR - PEP 675 allows type checkers to help prevent bugs allowing attacker-controlled data to be passed to APIs that declare themselves as requiring literal, in-code strings. This is a very thorough PEP with a compelling and highly relevant set of use cases. If I tried to call out all the things we like about it, it’d turn into a table of contents. It is long, but everything has a reason to be there. :) Once implemented, we expect it to be a challenge to tighten widely used existing APIs that accept str today to be LiteralString for practical reasons of what existing code calling unrestricted APIs naturally does. The community would benefit from anyone who attempts to move a widely used existing str API to LiteralString sharing their experiences, successful or not. -gps for the steering council

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Accepting PEP 655 - Marking individual TypedDict items as required or potentially-missing
by Gregory P. Smith March 21, 2022

March 21, 2022

On behalf of the Python Steering Council, we are pleased to accept PEP 655 - Marking individual TypedDict items as required or potentially-missing <https://peps.python.org/pep-0655/>. Thanks for considering the potential for confusion with Optional during the design and recommending best practices in the “how to teach” section. A couple SC members have tried using TypedDict and found it painful, this PEP helps. -gps for the steering council

1 0

A memory map based data persistence and startup speedup approach
by Yichen Yan March 20, 2022

March 20, 2022

Hi folks, as illustrated in faster-cpython#150 [1], we have implemented a mechanism that supports data persistence of a subset of python date types with mmap, therefore can reduce package import time by caching code object. This could be seen as a more eager pyc format, as they are for the same purpose, but our approach try to avoid [de]serialization. Therefore, we get a speedup in overall python startup by ~15%. Currently, we’ve made it a third-party library and have been working on open-sourcing. Our implementation (whose non-official name is “pycds”) mainly contains two parts: importlib hooks, this implements the mechanism to dump code objects to an archive and a `Finder` that supports loading code object from mapped memory. Dumping and loading (subset of) python types with mmap. In this part, we deal with 1) ASLR by patching `ob_type` fields; 2) hash seed randomization by supporting only basic types who don’t have hash-based layout (i.e. dict is not supported); 3) interned string by re-interning strings while loading mmap archive and so on. After pycds has been installed, complete workflow of our approach includes three parts: Record name of imported packages to heap.lst, `PYCDSMODE=TRACE PYCDSLIST=heap.lst python run.py` Dump memory archive of code objects of imported packages, this step does not involve the python script, `PYCDSMODE=DUMP PYCDSLIST=heap.lst PYCDSARCHIVE=heap.img python` Run other python processes with created archive, `PYCDSMODE=SHARE PYCDSARCHIVE=heap.img python run.py` We could even make use of immortal objects if PEP 683 [2] was accepted, which could give CDS more performance improvements. Currently, any archived object is virtually immortal, we add rc by 1 to who has been copied to the archive to avoid being deallocated. However, without changes to CPython, rc fields of archived objects will still be updated, therefore have extra footprint due to CoW. More background and detailed implementation could be found at [1]. We think it could be an effective way to improve python’s startup performance, and could even do more like sharing large data between python instances. As suggested in python-ideas [3], we posted this here, looking for questions/suggestions to the overall design and workflow, we also welcome code reviews after we get our lawyers happy and can publish the code. Best, Yichen Yan Alibaba Compiler Group [1] “Faster startup -- Share code objects from memory-mapped file”, https://github.com/faster-cpython/ideas/discussions/150 [2] PEP 683: "Immortal Objects, Using a Fixed Refcount" (draft), https://mail.python.org/archives/list/python-dev@python.org/message/TPLEYDC… [3] [Python-ideas] "A memory map based data persistence and startup speedup approach", https://mail.python.org/archives/list/python-ideas@python.org/thread/UKEBNH…

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Restrict the type of __slots__
by Serhiy Storchaka March 19, 2022

March 19, 2022

Currently __slots__ can be either string or an iterable of strings. 1. If it is a string, it is a name of a single slot. Third-party code which iterates __slots__ will be confused. 2. If it is an iterable, it should emit names of slots. Note that non-reiterable iterators are accepted too, but it causes weird bugs if __slots__ is iterated more than once. For example it breaks default pickling and copying. I propose to restrict the type of __slots__. Require it always been a tuple of strings. Most __slots__ in real code are tuples. It is rarely we need only single slot and set __slots__ as a string. It will break some code (there are 2 occurrences in the stdlib an 1 in scripts), but that code can be easily fixed.

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New PEP website is horrible to read on mobile device
by Nathan Cook March 18, 2022

March 18, 2022

Please make https://peps.python.org/ more responsive to various form factors See attached screenshot from Chrome version 99.0.4844.58 on my Pixel 3aXL running Android 12 Thank you, Nathan Cook

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Summary of Python tracker Issues
by Python tracker March 18, 2022

March 18, 2022

ACTIVITY SUMMARY (2022-03-11 - 2022-03-18) 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 7165 (-68) closed 51620 (+139) total 58785 (+71) Open issues with patches: 2903 Issues opened (50) ================== #22628: Idle: Tree lines are spaced too close together. https://bugs.python.org/issue22628 reopened by exarkun #43253: asyncio open_connection fails when a socket is explicitly clos https://bugs.python.org/issue43253 reopened by asvetlov #45405: configure fails on macOS with non-Apple clang version 13 which https://bugs.python.org/issue45405 reopened by ned.deily #46948: [CVE-2022-26488] Escalation of privilege via Windows Installer https://bugs.python.org/issue46948 reopened by steve.dower #46989: signal.signal, et al, doesn't support [SIGRTMIN,SIGRTMAX] on F https://bugs.python.org/issue46989 opened by ngie #46990: Surprising list overallocation from .split() https://bugs.python.org/issue46990 opened by tim.peters #46992: If use textwrap.dedent with string formatting, may get uninten https://bugs.python.org/issue46992 opened by xncbf12 #46997: Invalid memory write in bytearray https://bugs.python.org/issue46997 opened by JelleZijlstra #46998: Allow subclassing Any at runtime https://bugs.python.org/issue46998 opened by hauntsaninja #46999: test_multiprocessing_fork running without any timeout https://bugs.python.org/issue46999 opened by doko #47000: Make encoding="locale" uses locale encoding even in UTF-8 mode https://bugs.python.org/issue47000 opened by methane #47002: argparse - "expected one argument" when used -: in argument https://bugs.python.org/issue47002 opened by Pythass #47006: PEP 646: Decide on substitution behavior https://bugs.python.org/issue47006 opened by JelleZijlstra #47007: [doc] str docs are inconsistent with special method lookup https://bugs.python.org/issue47007 opened by itsvs #47009: Streamline list.append for the common case https://bugs.python.org/issue47009 opened by Dennis Sweeney #47010: Implement zero copy writes in SelectorSocketTransport in async https://bugs.python.org/issue47010 opened by kumaraditya303 #47011: Cloned turtle pen is not cleared completely https://bugs.python.org/issue47011 opened by learncoding #47012: Speed up iteration of bytes and bytearray https://bugs.python.org/issue47012 opened by kumaraditya303 #47013: test_bdb and test_distutils fail on installed Python 3.9, 3.10 https://bugs.python.org/issue47013 opened by vstinner #47014: ProactorEventLoop ignores Ctrl+C after closing unrelated loop https://bugs.python.org/issue47014 opened by mhils #47015: Update tests from asyncore to asyncio https://bugs.python.org/issue47015 opened by arhadthedev #47016: Create a test verifying bundled pip and setuptools wheels https://bugs.python.org/issue47016 opened by illia-v #47017: frozen modules are on by default in dev build https://bugs.python.org/issue47017 opened by gvanrossum #47019: Fatal Python Error in sqlite3 Python 3.10 https://bugs.python.org/issue47019 opened by hydroflask #47021: Add separate match and case doc to pydoc https://bugs.python.org/issue47021 opened by duckboycool #47022: PEP 594: Document removal of asynchat, asyncore and smtpd https://bugs.python.org/issue47022 opened by hugovk #47025: bytes do not work on sys.path https://bugs.python.org/issue47025 opened by graingert #47026: BytesWarning in zipimport paths on sys.path https://bugs.python.org/issue47026 opened by graingert #47027: subprocess.run(), subprocess.Popen() should accept file descri https://bugs.python.org/issue47027 opened by ydroneaud #47029: Fix a BrokenPipeError when a multiprocessing.Queue is garbage https://bugs.python.org/issue47029 opened by maggyero #47030: singledispatch does not work with positional arguments with de https://bugs.python.org/issue47030 opened by randolf.scholz #47031: math.nan should note that NANs do not compare equal to anythin https://bugs.python.org/issue47031 opened by steven.daprano #47037: Build problems on Windows https://bugs.python.org/issue47037 opened by terry.reedy #47040: Remove invalid versionchanged in doc https://bugs.python.org/issue47040 opened by malin #47043: Argparse can't parse subparsers with parse_known_args https://bugs.python.org/issue47043 opened by rive-n #47045: Remove the RESUME instruction https://bugs.python.org/issue47045 opened by Mark.Shannon #47046: Add `f_state` attribute to FrameObjects. https://bugs.python.org/issue47046 opened by Mark.Shannon #47047: smtplib: allow custom policy or use msg.policy in send_message https://bugs.python.org/issue47047 opened by Miksus #47048: Python 3.10.3 + Osx Lion : fatal error (make) signalmodule or https://bugs.python.org/issue47048 opened by laurentang001 #47049: Incorrect shutil.copytree() behaviour with symlinks https://bugs.python.org/issue47049 opened by vajdaz #47050: Cannot install Python 3.10.3 on Windows https://bugs.python.org/issue47050 opened by AlexWaygood #47051: Windows v3.10.3 .chm file (in python310\doc) page headings are https://bugs.python.org/issue47051 opened by DonnieODonnell #47052: allow string as sep in _Py_strhex_impl ( bytearray.hex() ) https://bugs.python.org/issue47052 opened by arne123 #47053: Reduce de-optimization in BINARY_OP_INPLACE_ADD_UNICODE https://bugs.python.org/issue47053 opened by Dennis Sweeney #47054: "SyntaxError: non-default argument follows default argument" s https://bugs.python.org/issue47054 opened by Bluenix #47055: `issubclass` on two different subclasses of abstract base clas https://bugs.python.org/issue47055 opened by mobiusklein #47056: turtle.write() causes flickering when the tracer is turned off https://bugs.python.org/issue47056 opened by relent95 #47057: Use FASTCALL convention for FutureIter.throw() https://bugs.python.org/issue47057 opened by asvetlov #47058: Skip tests failing on Solaris https://bugs.python.org/issue47058 opened by kulikjak #47059: Mechanism to enable __weakref__ slot on dataclass(slots=True) https://bugs.python.org/issue47059 opened by ariebovenberg Most recent 15 issues with no replies (15) ========================================== #47059: Mechanism to enable __weakref__ slot on dataclass(slots=True) https://bugs.python.org/issue47059 #47058: Skip tests failing on Solaris https://bugs.python.org/issue47058 #47057: Use FASTCALL convention for FutureIter.throw() https://bugs.python.org/issue47057 #47056: turtle.write() causes flickering when the tracer is turned off https://bugs.python.org/issue47056 #47053: Reduce de-optimization in BINARY_OP_INPLACE_ADD_UNICODE https://bugs.python.org/issue47053 #47051: Windows v3.10.3 .chm file (in python310\doc) page headings are https://bugs.python.org/issue47051 #47049: Incorrect shutil.copytree() behaviour with symlinks https://bugs.python.org/issue47049 #47045: Remove the RESUME instruction https://bugs.python.org/issue47045 #47031: math.nan should note that NANs do not compare equal to anythin https://bugs.python.org/issue47031 #47030: singledispatch does not work with positional arguments with de https://bugs.python.org/issue47030 #47027: subprocess.run(), subprocess.Popen() should accept file descri https://bugs.python.org/issue47027 #47026: BytesWarning in zipimport paths on sys.path https://bugs.python.org/issue47026 #47022: PEP 594: Document removal of asynchat, asyncore and smtpd https://bugs.python.org/issue47022 #47021: Add separate match and case doc to pydoc https://bugs.python.org/issue47021 #47017: frozen modules are on by default in dev build https://bugs.python.org/issue47017 Most recent 15 issues waiting for review (15) ============================================= #47058: Skip tests failing on Solaris https://bugs.python.org/issue47058 #47057: Use FASTCALL convention for FutureIter.throw() https://bugs.python.org/issue47057 #47053: Reduce de-optimization in BINARY_OP_INPLACE_ADD_UNICODE https://bugs.python.org/issue47053 #47049: Incorrect shutil.copytree() behaviour with symlinks https://bugs.python.org/issue47049 #47045: Remove the RESUME instruction https://bugs.python.org/issue47045 #47040: Remove invalid versionchanged in doc https://bugs.python.org/issue47040 #47037: Build problems on Windows https://bugs.python.org/issue47037 #47029: Fix a BrokenPipeError when a multiprocessing.Queue is garbage https://bugs.python.org/issue47029 #47025: bytes do not work on sys.path https://bugs.python.org/issue47025 #47022: PEP 594: Document removal of asynchat, asyncore and smtpd https://bugs.python.org/issue47022 #47016: Create a test verifying bundled pip and setuptools wheels https://bugs.python.org/issue47016 #47015: Update tests from asyncore to asyncio https://bugs.python.org/issue47015 #47010: Implement zero copy writes in SelectorSocketTransport in async https://bugs.python.org/issue47010 #47009: Streamline list.append for the common case https://bugs.python.org/issue47009 #47007: [doc] str docs are inconsistent with special method lookup https://bugs.python.org/issue47007 Top 10 most discussed issues (10) ================================= #47019: Fatal Python Error in sqlite3 Python 3.10 https://bugs.python.org/issue47019 15 msgs #47037: Build problems on Windows https://bugs.python.org/issue47037 14 msgs #46992: If use textwrap.dedent with string formatting, may get uninten https://bugs.python.org/issue46992 10 msgs #45150: Add a file_digest() function in hashlib https://bugs.python.org/issue45150 9 msgs #47025: bytes do not work on sys.path https://bugs.python.org/issue47025 9 msgs #46382: dataclass(slots=True) does not account for slots in base class https://bugs.python.org/issue46382 8 msgs #46566: Support -3.11-arm64 in py.exe launcher https://bugs.python.org/issue46566 8 msgs #46785: On Windows, os.stat() can fail if called while another process https://bugs.python.org/issue46785 7 msgs #47013: test_bdb and test_distutils fail on installed Python 3.9, 3.10 https://bugs.python.org/issue47013 7 msgs #46890: getpath problems with framework build https://bugs.python.org/issue46890 6 msgs Issues closed (129) =================== #2148: nis module not supporting group aliases https://bugs.python.org/issue2148 closed by iritkatriel #6497: Support for digital Cinema/film DPX and Kodak Cineon image fil https://bugs.python.org/issue6497 closed by iritkatriel #8526: msilib doesn't support multiple CAB instances in same installe https://bugs.python.org/issue8526 closed by iritkatriel #8934: aifc should use str instead of bytes (wave, sunau compatibilit https://bugs.python.org/issue8934 closed by iritkatriel #9544: [doc] xdrlib.Packer().pack_fstring throws a TypeError when cal https://bugs.python.org/issue9544 closed by iritkatriel #9736: doctest.DocTestSuite doesn't handle test globs correctly https://bugs.python.org/issue9736 closed by JelleZijlstra #12026: Support more of MSI api https://bugs.python.org/issue12026 closed by iritkatriel #12201: Returning FILETIME is unsupported in msilib.SummaryInformation https://bugs.python.org/issue12201 closed by iritkatriel #12506: NIS module cant handle multiple NIS map entries for the same G https://bugs.python.org/issue12506 closed by iritkatriel #12516: imghdr.what should take one argument https://bugs.python.org/issue12516 closed by iritkatriel #13681: Aifc read compressed frames fix https://bugs.python.org/issue13681 closed by iritkatriel #14156: argparse.FileType for '-' doesn't work for a mode of 'rb' https://bugs.python.org/issue14156 closed by serhiy.storchaka #15749: cgitb prints html for text when display disabled. https://bugs.python.org/issue15749 closed by iritkatriel #18979: Use argparse in the uu module https://bugs.python.org/issue18979 closed by iritkatriel #20392: Inconsistency with uppercase file extensions in MimeTypes.gues https://bugs.python.org/issue20392 closed by asvetlov #21574: Port image types detections from PIL to the imghdr module https://bugs.python.org/issue21574 closed by iritkatriel #22094: oss_audio_device.write(data) produces short writes https://bugs.python.org/issue22094 closed by iritkatriel #22476: asyncio task chapter confusion about 'task', 'future', and 'sc https://bugs.python.org/issue22476 closed by asvetlov #22859: unittest.TestProgram.usageExit no longer invoked https://bugs.python.org/issue22859 closed by JelleZijlstra #24080: asyncio.Event.wait() Task was destroyed but it is pending https://bugs.python.org/issue24080 closed by asvetlov #24224: test_msilib is inadequate https://bugs.python.org/issue24224 closed by iritkatriel #25230: asyncio/Windows: Unix datagram sockets not supported https://bugs.python.org/issue25230 closed by asvetlov #25291: better Exception message for certain task termination scenario https://bugs.python.org/issue25291 closed by asvetlov #25292: [asyncio] ssl socket gets into broken state when client exits https://bugs.python.org/issue25292 closed by asvetlov #26337: Bypass imghdr module determines the type of image https://bugs.python.org/issue26337 closed by iritkatriel #26545: [doc] os.walk is limited by python's recursion limit https://bugs.python.org/issue26545 closed by iritkatriel #27121: imghdr does not support jpg files with Lavc bytes https://bugs.python.org/issue27121 closed by iritkatriel #28464: BaseEventLoop.close should shutdown executor before marking it https://bugs.python.org/issue28464 closed by asvetlov #28534: Replace asynchat https://bugs.python.org/issue28534 closed by asvetlov #28591: imghdr doesn't recognize some jpeg formats https://bugs.python.org/issue28591 closed by iritkatriel #29406: asyncio SSL contexts leak sockets after calling close with cer https://bugs.python.org/issue29406 closed by asvetlov #30080: Add the --duplicate option for timeit https://bugs.python.org/issue30080 closed by serhiy.storchaka #30491: Add a lightweight mechanism for detecting un-awaited coroutine https://bugs.python.org/issue30491 closed by asvetlov #30677: [doc] mention that os.mkdir() raises FileNotFound if path does https://bugs.python.org/issue30677 closed by iritkatriel #31327: [doc] Add example of platform-specific support for negative ti https://bugs.python.org/issue31327 closed by iritkatriel #32007: deprecate the nis module https://bugs.python.org/issue32007 closed by iritkatriel #32181: runaway Tasks with Task.cancel() ignored. https://bugs.python.org/issue32181 closed by asvetlov #32396: Implement method to write/read to serials without blocking on https://bugs.python.org/issue32396 closed by asvetlov #32669: cgitb file to print OSError exceptions https://bugs.python.org/issue32669 closed by iritkatriel #33507: Improving the html rendered by cgitb.html https://bugs.python.org/issue33507 closed by iritkatriel #34129: CGITB does not mangle variables names https://bugs.python.org/issue34129 closed by iritkatriel #34165: uu.decode() raises binascii.Error instead of uu.Error on inval https://bugs.python.org/issue34165 closed by iritkatriel #35212: Expressions with format specifiers in f-strings give wrong cod https://bugs.python.org/issue35212 closed by eric.smith #35392: Create asyncio/sockutils.py https://bugs.python.org/issue35392 closed by asvetlov #37529: Mimetype module duplicates https://bugs.python.org/issue37529 closed by asvetlov #38955: Non indemnpotent behavior of asyncio.get_event_loop and asynci https://bugs.python.org/issue38955 closed by asvetlov #40007: An attempt to make asyncio.transport.writelines (selector) use https://bugs.python.org/issue40007 closed by asvetlov #40227: SSLError is not passed to the client during handshake https://bugs.python.org/issue40227 closed by asvetlov #40454: DEBUG kw to asyncio.run overrides DEBUG mode set elsewhere https://bugs.python.org/issue40454 closed by asvetlov #40487: Unexpected exception handler behavior in Jupyter when returnin https://bugs.python.org/issue40487 closed by asvetlov #40735: test_nntplib depends on unreliable external servers https://bugs.python.org/issue40735 closed by iritkatriel #40811: Allow to create new Event Loops on Threads https://bugs.python.org/issue40811 closed by asvetlov #40967: asyncio.Task.all_tasks() and asyncio.Task.current_task() must https://bugs.python.org/issue40967 closed by asvetlov #40977: asyncio.trsock.TransportSocket says some APIs will be prohibit https://bugs.python.org/issue40977 closed by asvetlov #41696: asyncio.run interacts surprisingly with debug mode https://bugs.python.org/issue41696 closed by asvetlov #42682: awaiting a wrapped asyncio.Task multiple times gives long, rep https://bugs.python.org/issue42682 closed by iritkatriel #42683: asyncio should handle keyboard interrupt while the event loop https://bugs.python.org/issue42683 closed by asvetlov #42698: Deadlock in pysqlite_connection_dealloc() https://bugs.python.org/issue42698 closed by hydroflask #42760: inspect.iscoroutine returns False for asynchronous generator m https://bugs.python.org/issue42760 closed by asvetlov #42838: Wait for cleanup coroutines before event loop is closed. https://bugs.python.org/issue42838 closed by asvetlov #42916: Support for DICOM image file format in imghdr module https://bugs.python.org/issue42916 closed by iritkatriel #42941: Infinite loop in asyncio sslproto https://bugs.python.org/issue42941 closed by asvetlov #43194: Add JFXX as jpeg marker in imghdr module https://bugs.python.org/issue43194 closed by iritkatriel #43215: Document Happy Eyeballs arguments of asyncio.open_connection https://bugs.python.org/issue43215 closed by asvetlov #43721: Documentation of property.{getter,setter,deleter} fails to men https://bugs.python.org/issue43721 closed by AlexWaygood #43863: [Windows] test_distutils logs: DeprecationWarning: bdist_msi https://bugs.python.org/issue43863 closed by iritkatriel #44221: ImportError: sys.meta_path is None, Python is likely shutting https://bugs.python.org/issue44221 closed by asvetlov #44318: Asyncio classes missing __slots__ https://bugs.python.org/issue44318 closed by asvetlov #44373: make Event an Awaitable https://bugs.python.org/issue44373 closed by asvetlov #44604: [Enhancement] Asyncio task decorator to provide interface to d https://bugs.python.org/issue44604 closed by asvetlov #44795: asyncio.run does not allow for graceful shutdown of main task https://bugs.python.org/issue44795 closed by asvetlov #44799: typing.get_type_hints() raises TypeError for a variable annota https://bugs.python.org/issue44799 closed by JelleZijlstra #45279: avoid redundant _commit_removals pending_removals guard https://bugs.python.org/issue45279 closed by asvetlov #45413: Add install scheme for virtual environments https://bugs.python.org/issue45413 closed by FFY00 #45744: Fix Flawfinder C Errors https://bugs.python.org/issue45744 closed by iritkatriel #46030: socket module add couple of FreeBSD constants https://bugs.python.org/issue46030 closed by asvetlov #46223: asyncio cause infinite loop during debug https://bugs.python.org/issue46223 closed by asvetlov #46246: importlib.metadata.DeprecatedList appears to be missing __slot https://bugs.python.org/issue46246 closed by jaraco #46329: Split up the CALL_NO_KW and CALL_KW instructions. https://bugs.python.org/issue46329 closed by Mark.Shannon #46421: unittest ValueError when invoking as module https://bugs.python.org/issue46421 closed by JelleZijlstra #46457: test_unittest: TestAsyncCase.test_debug_cleanup_same_loop() ha https://bugs.python.org/issue46457 closed by asvetlov #46480: Implement typing.assert_type https://bugs.python.org/issue46480 closed by JelleZijlstra #46553: typing: get_type_hints on stringified lone ClassVar raises Typ https://bugs.python.org/issue46553 closed by JelleZijlstra #46644: typing: remove callable() check from typing._type_check https://bugs.python.org/issue46644 closed by JelleZijlstra #46677: TypedDict docs are incomplete https://bugs.python.org/issue46677 closed by JelleZijlstra #46805: Add low level UDP socket functions to asyncio https://bugs.python.org/issue46805 closed by asvetlov #46843: PersistentTaskGroup API https://bugs.python.org/issue46843 closed by gvanrossum #46884: [doc] msilib.rst uses data directive to document modules https://bugs.python.org/issue46884 closed by iritkatriel #46907: Update Windows and MacOS installer to SQLite 3.38.1 https://bugs.python.org/issue46907 closed by erlendaasland #46918: The vulnerability is included in /lib/python3.9/ensurepip afte https://bugs.python.org/issue46918 closed by ned.deily #46920: Remove code made dead long ago with #if 0 https://bugs.python.org/issue46920 closed by arhadthedev #46944: Use FASTCALL calling convention in generator.throw https://bugs.python.org/issue46944 closed by kumaraditya303 #46953: use FASTCALL for __import__ builtin https://bugs.python.org/issue46953 closed by kumaraditya303 #46967: Type union for except https://bugs.python.org/issue46967 closed by iritkatriel #46968: Insufficient sigaltstack size used by CPython prevents extensi https://bugs.python.org/issue46968 closed by vstinner #46975: clang: error: linker command failed with exit code 1 (use -v t https://bugs.python.org/issue46975 closed by ned.deily #46981: Empty typing.Tuple https://bugs.python.org/issue46981 closed by serhiy.storchaka #46983: test_sqlite3: test_trace_too_much_expanded_sql() failed on AMD https://bugs.python.org/issue46983 closed by erlendaasland #46985: Upgrade ensurepip bundled pip to 22.0.4 https://bugs.python.org/issue46985 closed by ned.deily #46986: Upgrade ensurepip bundled setuptools to 60.9.3 https://bugs.python.org/issue46986 closed by ned.deily #46987: Remove _PySys_GetObjectId / _PySys_GetObjectId https://bugs.python.org/issue46987 closed by corona10 #46991: Specialize list[slice] https://bugs.python.org/issue46991 closed by kj #46993: Speed up bytearray creation from list and tuple https://bugs.python.org/issue46993 closed by asvetlov #46994: Accept explicit contextvars.Context in asyncio create_task() A https://bugs.python.org/issue46994 closed by asvetlov #46995: Make Task.set_name() mandatory for third-parties https://bugs.python.org/issue46995 closed by asvetlov #46996: Drop support of Tcl/Tk older than 8.5.12 https://bugs.python.org/issue46996 closed by serhiy.storchaka #47001: deadlock in ctypes? https://bugs.python.org/issue47001 closed by rocco.matano #47003: Cleanup _overlapped module https://bugs.python.org/issue47003 closed by asvetlov #47004: Apply bugfixes from importlib_metadata 4.11.3. https://bugs.python.org/issue47004 closed by jaraco #47005: Improve performance of bytes_repeat https://bugs.python.org/issue47005 closed by Dennis Sweeney #47008: Add Lib/site-packages to .gitignore https://bugs.python.org/issue47008 closed by Dennis Sweeney #47018: ImportError: cannot import name '_simple_enum' from 'enum' https://bugs.python.org/issue47018 closed by steven.daprano #47020: float('nan')==math.nan does NOT evaluate to True (as suggeste https://bugs.python.org/issue47020 closed by eric.smith #47023: re.sub shows key error on regex escape chars provided in repl https://bugs.python.org/issue47023 closed by eric.smith #47024: Update to OpenSSL 1.1.1n https://bugs.python.org/issue47024 closed by christian.heimes #47028: Incorrect behaviour when zipping a bunch of maps https://bugs.python.org/issue47028 closed by Dennis Sweeney #47032: CI does not detect launcher installer build failure https://bugs.python.org/issue47032 closed by steve.dower #47033: Build failure on macOS Big Sur https://bugs.python.org/issue47033 closed by Ghyslain Leclerc #47034: pickle not working correctly when custom field is directly ini https://bugs.python.org/issue47034 closed by eric.smith #47035: Rewrite asyncio queue tests with IsolatedAsyncioTestCase https://bugs.python.org/issue47035 closed by asvetlov #47036: Nested list in Dict, multiprocessing manager https://bugs.python.org/issue47036 closed by munky99999 #47038: Rewrite asyncio.wait_for test to use IsolatedAsyncioTestCase https://bugs.python.org/issue47038 closed by asvetlov #47039: Normalize asyncio future and task repr() https://bugs.python.org/issue47039 closed by asvetlov #47041: requests module parse url failed https://bugs.python.org/issue47041 closed by christian.heimes #47042: Fix test_html_doc in test_pydoc https://bugs.python.org/issue47042 closed by serhiy.storchaka #47044: Python 2.7.18 + tck/tk 8.6.1 + Osx Lion : tkinter built failes https://bugs.python.org/issue47044 closed by christian.heimes #1573931: WSGI, cgi.FieldStorage incompatibility https://bugs.python.org/issue1573931 closed by iritkatriel #1186900: nntplib shouldn't raise generic EOFError https://bugs.python.org/issue1186900 closed by iritkatriel #1047397: cgitb failures https://bugs.python.org/issue1047397 closed by iritkatriel

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Request for feedback on new features for 3.11
by Gabriele March 17, 2022

March 17, 2022

Hi there I hope you will indulge me while I request some feedback on a couple of open PRs that I would like to be considered for 3.11. https://github.com/python/cpython/pull/31150 https://github.com/python/cpython/pull/31142 The first one should be pretty easy to review as it simply makes use of the new co_qualname attribute of code objects to enrich the traceback output with qualified names. Provided it gets accepted, similar changes could also be introduced in other areas, like profiling, debugging, IDLE etc... The second one might not be as easy to review. As pointed out in the attached bpo, a similar issue was already considered back in 2012, but the proposed solution there has been "opposed" because of backwards-compatibility concerns. The change I am proposing would expose thread names via the ABI (albeit still in the form of a Python object) in a backwards-compatible way. However, I am not very satisfied with the way I have implemented this for now, nor can I think of a better solution. Cheers, Gabriele

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