Mailman 3 September 2019 - Python-Dev

Timeline for 3.5.8
by Larry Hastings Sept. 20, 2019

Sept. 20, 2019

Howdy howdy. Here's what I'm thinking for the next release of 3.5. This week I'm going to merge / reject all the outstanding PRs for 3.5, then cut rc1 at the Python Core Dev sprints next week, either Monday (2019/9/9) or Tuesday (2019/9/10). This isn't a lot of notice, but things have slowed down a lot for 3.5, so I suspect nobody's going to be inconvenienced or bothered by the short notice. However! If you /would/ be inconvenienced or bothered by the short notice--if you need more time to get a patch in for 3.5--just let me know and I can delay rc1. Assuming no problems crop up in rc1, 3.5.8 final will be released two weeks after 3.5.8 rc1. Cheers, //arry/

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Python library maintainers: PEP 602 needs your feedback
by Łukasz Langa Sept. 17, 2019

Sept. 17, 2019

Hey there, Python library maintainers! Python is looking into increasing its release cadence. You can read the current proposal here: https://python.org/dev/peps/pep-0602/ <https://python.org/dev/peps/pep-0602/> More importantly, we need your input. Read the PEP and please let us know what you think via this form: https://forms.gle/fA1FDhtna9sFnckk9 <https://forms.gle/fA1FDhtna9sFnckk9> Free-form discussion is happening here: https://discuss.python.org/t/pep-602-annual-release-cycle-for-python/2296/ <https://discuss.python.org/t/pep-602-annual-release-cycle-for-python/2296/> Thanks in advance, Ł Python 3.8 and 3.9 Release Manager

3 2

urllib request HTTPS memory leak?
by V-ron P Sept. 16, 2019

Sept. 16, 2019

Hello Python Dev, One of my HTTPS servers leaked over 8 GB of memory over the past week. After troubleshooting the issue, I managed to narrow it down to the minimal test case below: https://gist.github.com/hydrogen-mvm/d588521c2138e0f98aa94b18e7dedfdb (Note that the 100 threads are not necessary, but they help exaggerate and accelerate the memory leaking.) The memory leak happens if I send a HTTPS request, regardless if it's GET or POST. The most bizarre part is the destination address does -not- need to exist and it still leaks! (In the script above it points to a non-existent HTTPS server on your localhost.) This leak does not happen for HTTP (plaintext) requests, which suggests that the bug might be SSL-related. My OS is Windows 7 and my Python version is: Python 3.7.4 (tags/v3.7.4:e09359112e, Jul 8 2019, 20:34:20) [MSC v.1916 64 bit (AMD64)] on win32 A friend of mine tested the script on his Windows 10 machine and also experienced the same memory leaking effect. Please confirm if this is in fact a bug in Python or this is a bug in my environment. Thanks.

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Re: Spammy stuff (was Re: congrats on 3.5! Alas, windows 7 users are having problems installing it)
by Tim Peters Sept. 15, 2019

Sept. 15, 2019

[Tim] > While python-dev has several "official" moderators, best I can tell > I'm the only one who has reviewed these messages for years. I should clarify that! That's not meant to be a dig at the other moderators. I review everything because I'm retired and am near the computer many hours almost every day. That's been so for at least a decade. So the others rarely get a chance - the queue is very likely empty if they ever look. After a few years of that, they may well stop looking ;-)

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congrats on 3.5! Alas, windows 7 users are having problems installing it
by Laura Creighton Sept. 15, 2019

Sept. 15, 2019

webmaster has already heard from 4 people who cannot install it. I sent them to the bug tracker or to python-list but they seem not to have gone either place. Is there some guide I should be sending them to, 'how to debug installation problems'? Laura

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Feature Request: Python Pipes: Incluye sspipe module
by Juan Telleria Sept. 14, 2019

Sept. 14, 2019

Could sspipe module be included as part of Python's Standard Library? https://sspipe.github.io/ https://github.com/sspipe/sspipe https://pypi.org/project/sspipe/ sspipe allows to use syntax such as: from sspipe import p, px import numpy as np import pandas as pd ( np.linspace(0, pi, 100) | p({'x': px, 'y': np.sin(px)}) | p(pd.DataFrame) | px[px.x > px.y].head() | p(print, "Example 6: pandas and numpy support:\n", px) ) The issue in Python's Bug Tracker is: https://bugs.python.org/issue38052 Any Core Python Developer willing to support this PEP? Thank you, Juan Telleria

3 3

python3 -bb and hash collisions
by Daniel Holth Sept. 13, 2019

Sept. 13, 2019

set([u"foo", b"foo]) will error because the two kinds of string have the same hash, and this causes a comparison. Is that correct?

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Summary of Python tracker Issues
by Python tracker Sept. 13, 2019

Sept. 13, 2019

ACTIVITY SUMMARY (2019-09-06 - 2019-09-13) 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 7031 (-92) closed 42885 (+212) total 49916 (+120) Open issues with patches: 2788 Issues opened (74) ================== #34805: Explicitly specify `MyClass.__subclasses__()` returns classes https://bugs.python.org/issue34805 reopened by rhettinger #36871: Misleading error from unittest.mock's assert_has_calls https://bugs.python.org/issue36871 reopened by gregory.p.smith #37879: Segfaults in C heap type subclasses https://bugs.python.org/issue37879 reopened by vstinner #38047: multiarch headers are added when cross compiling https://bugs.python.org/issue38047 opened by hhb #38050: open('file.txt') path not found https://bugs.python.org/issue38050 opened by Sean Frazier #38051: time.strftime handling %z/%Z badly https://bugs.python.org/issue38051 opened by macintux #38052: Include sspipe Module with Core Python https://bugs.python.org/issue38052 opened by Juan Telleria2 #38055: Starting multiprocessing.Process raises FileNotFoundError unex https://bugs.python.org/issue38055 opened by Donny Brown #38056: Add examples for common text encoding Error Handlers https://bugs.python.org/issue38056 opened by Ma Lin #38057: Docs: source code don't can be translate https://bugs.python.org/issue38057 opened by adorilson #38061: FreeBSD: Optimize subprocess.Popen(close_fds=True) using close https://bugs.python.org/issue38061 opened by vstinner #38062: Clarify that atexit.unregister matches by equality, not identi https://bugs.python.org/issue38062 opened by mark.dickinson #38063: Modify test_socket.py to use unittest test discovery https://bugs.python.org/issue38063 opened by vstinner #38065: Document the datetime capsule API https://bugs.python.org/issue38065 opened by p-ganssle #38067: Add headers parameter on RobotFileParser https://bugs.python.org/issue38067 opened by eamanu #38068: clean up configure logic for gettimeofday https://bugs.python.org/issue38068 opened by benjamin.peterson #38070: visit_decref(): add an assertion to check that the object is n https://bugs.python.org/issue38070 opened by vstinner #38073: Make pwd module PEP-384 compatible https://bugs.python.org/issue38073 opened by dino.viehland #38075: Make random module PEP-384 compatible https://bugs.python.org/issue38075 opened by dino.viehland #38077: IDLE leaking ARGV into globals() namespace https://bugs.python.org/issue38077 opened by rhettinger #38078: IDLE: Don't run internal code in user namespace. https://bugs.python.org/issue38078 opened by terry.reedy #38079: _PyObject_VAR_SIZE should avoid arithmetic overflow https://bugs.python.org/issue38079 opened by Greg Price #38080: 2to3 urllib fixer: missing fix for urllib.getproxies https://bugs.python.org/issue38080 opened by shiyuchong #38081: Different behavior of os.path.realpath('nul') in 3.7 and 3.8 https://bugs.python.org/issue38081 opened by iamsav #38085: Interrupting class creation in __init_subclass__ may lead to i https://bugs.python.org/issue38085 opened by xitop #38091: Import deadlock detection causes deadlock https://bugs.python.org/issue38091 opened by Ronan.Lamy #38093: Update MagicMock __aenter__ and __aexit__ to return AsyncMock' https://bugs.python.org/issue38093 opened by lisroach #38094: unneeded assignment to wb.len in PyBytes_Concat using buffer p https://bugs.python.org/issue38094 opened by gregory.p.smith #38095: Multi-threaded circular import fails with _DeadlockError when https://bugs.python.org/issue38095 opened by Ronan.Lamy #38097: cmd.Cmd: Allow other readline completion methods https://bugs.python.org/issue38097 opened by mannjani #38099: __dict__ attribute is incorrectly stated to be read-only https://bugs.python.org/issue38099 opened by reed #38100: Spelling error in unittest.mock code https://bugs.python.org/issue38100 opened by lisroach #38101: Update devguide triaging keywords https://bugs.python.org/issue38101 opened by lisroach #38106: Race in PyThread_release_lock - can lead to memory corruption https://bugs.python.org/issue38106 opened by navytux #38108: Everything in Mock should inherit from Base https://bugs.python.org/issue38108 opened by lisroach #38109: Missing constants in Lib/stat.py https://bugs.python.org/issue38109 opened by Ronan.Lamy #38110: Use fdwalk() within os.closerange() impl if available https://bugs.python.org/issue38110 opened by gregory.p.smith #38112: Compileall improvements https://bugs.python.org/issue38112 opened by petr.viktorin #38115: Invalid bytecode offsets in co_lnotab https://bugs.python.org/issue38115 opened by twouters #38116: Make select module PEP-384 compatible https://bugs.python.org/issue38116 opened by dino.viehland #38118: Valgrind warnings when running tokenize.py https://bugs.python.org/issue38118 opened by vstinner #38119: resource tracker destroys shared memory segments when other pr https://bugs.python.org/issue38119 opened by davin #38122: AsyncMock force always creating an AsyncMock for child mocks https://bugs.python.org/issue38122 opened by lisroach #38125: Can' build document in Sphinx v2.2.0 https://bugs.python.org/issue38125 opened by Windson Yang #38126: mailcap top level wildcard support https://bugs.python.org/issue38126 opened by pacien #38128: IDLE undo calls get_saved() when set to None https://bugs.python.org/issue38128 opened by rhettinger #38130: Error in section 8.6 of the tutorials (Errors and Exceptions, https://bugs.python.org/issue38130 opened by Mohammad Dehghan #38131: compile(mode='eval') uninformative error message https://bugs.python.org/issue38131 opened by Ilya Kamenshchikov #38132: Simplify hashlib implementation https://bugs.python.org/issue38132 opened by christian.heimes #38135: Depth first search in compile.c creates wrong BB order for cer https://bugs.python.org/issue38135 opened by Mark.Shannon #38136: Remove AsyncMock.assert_awaited_* https://bugs.python.org/issue38136 opened by lisroach #38137: hashopenssl fails to compile on MacOS https://bugs.python.org/issue38137 opened by pablogsal #38140: Py_tp_dictoffset / Py_tp_finalize are unsettable in stable API https://bugs.python.org/issue38140 opened by dino.viehland #38141: Use fewer statics in Argument Clinic. https://bugs.python.org/issue38141 opened by eric.snow #38142: Make _hashlib extension module PEP-384 compatible https://bugs.python.org/issue38142 opened by christian.heimes #38144: Add the root_dir and dir_fd parameters in glob.glob() https://bugs.python.org/issue38144 opened by serhiy.storchaka #38145: Fix short option 'd' in 'distutils' command 'bdist_dumb' https://bugs.python.org/issue38145 opened by sinoroc #38146: QVariant NULL returns anomalous values in equality statements https://bugs.python.org/issue38146 opened by John Midgett #38147: add macro for __builtin_unreachable https://bugs.python.org/issue38147 opened by sir-sigurd #38149: sys.audit() is called multiple times for glob.glob() https://bugs.python.org/issue38149 opened by serhiy.storchaka #38152: AST change introduced tons of reference leaks https://bugs.python.org/issue38152 opened by vstinner #38153: Normalize hashing algorithm names https://bugs.python.org/issue38153 opened by christian.heimes #38154: test__xxsubinterpreters: random failures on AMD64 FreeBSD CURR https://bugs.python.org/issue38154 opened by vstinner #38155: Add __all__ to the datetime module https://bugs.python.org/issue38155 opened by p-ganssle #38156: input fucntion raises SystemError after specific input. https://bugs.python.org/issue38156 opened by Amiy Kumar #38157: Add a recipe in unittest.mock examples about mock_open per fil https://bugs.python.org/issue38157 opened by xtreak #38158: PyType_Spec docs list non-existant field "doc" https://bugs.python.org/issue38158 opened by scoder #38159: PyState_AddModule docs should say that it's not necessary to c https://bugs.python.org/issue38159 opened by petr.viktorin #38160: Add a "PyInterpreterState *" field to PyTypeObject. https://bugs.python.org/issue38160 opened by eric.snow #38161: AsyncMock add `.awaited` like `.called` https://bugs.python.org/issue38161 opened by lisroach #38162: Import Long Load https://bugs.python.org/issue38162 opened by Evgeniy Mischuk #38163: AsyncMock child mocks should detect their type https://bugs.python.org/issue38163 opened by lisroach #38164: polishing asyncio Streams API https://bugs.python.org/issue38164 opened by yselivanov #38165: freezes when loading a program on imports https://bugs.python.org/issue38165 opened by Evgeniy Mischuk Most recent 15 issues with no replies (15) ========================================== #38164: polishing asyncio Streams API https://bugs.python.org/issue38164 #38163: AsyncMock child mocks should detect their type https://bugs.python.org/issue38163 #38162: Import Long Load https://bugs.python.org/issue38162 #38159: PyState_AddModule docs should say that it's not necessary to c https://bugs.python.org/issue38159 #38157: Add a recipe in unittest.mock examples about mock_open per fil https://bugs.python.org/issue38157 #38156: input fucntion raises SystemError after specific input. https://bugs.python.org/issue38156 #38154: test__xxsubinterpreters: random failures on AMD64 FreeBSD CURR https://bugs.python.org/issue38154 #38152: AST change introduced tons of reference leaks https://bugs.python.org/issue38152 #38147: add macro for __builtin_unreachable https://bugs.python.org/issue38147 #38146: QVariant NULL returns anomalous values in equality statements https://bugs.python.org/issue38146 #38144: Add the root_dir and dir_fd parameters in glob.glob() https://bugs.python.org/issue38144 #38142: Make _hashlib extension module PEP-384 compatible https://bugs.python.org/issue38142 #38140: Py_tp_dictoffset / Py_tp_finalize are unsettable in stable API https://bugs.python.org/issue38140 #38131: compile(mode='eval') uninformative error message https://bugs.python.org/issue38131 #38126: mailcap top level wildcard support https://bugs.python.org/issue38126 Most recent 15 issues waiting for review (15) ============================================= #38165: freezes when loading a program on imports https://bugs.python.org/issue38165 #38162: Import Long Load https://bugs.python.org/issue38162 #38159: PyState_AddModule docs should say that it's not necessary to c https://bugs.python.org/issue38159 #38157: Add a recipe in unittest.mock examples about mock_open per fil https://bugs.python.org/issue38157 #38153: Normalize hashing algorithm names https://bugs.python.org/issue38153 #38145: Fix short option 'd' in 'distutils' command 'bdist_dumb' https://bugs.python.org/issue38145 #38144: Add the root_dir and dir_fd parameters in glob.glob() https://bugs.python.org/issue38144 #38142: Make _hashlib extension module PEP-384 compatible https://bugs.python.org/issue38142 #38140: Py_tp_dictoffset / Py_tp_finalize are unsettable in stable API https://bugs.python.org/issue38140 #38137: hashopenssl fails to compile on MacOS https://bugs.python.org/issue38137 #38135: Depth first search in compile.c creates wrong BB order for cer https://bugs.python.org/issue38135 #38132: Simplify hashlib implementation https://bugs.python.org/issue38132 #38130: Error in section 8.6 of the tutorials (Errors and Exceptions, https://bugs.python.org/issue38130 #38122: AsyncMock force always creating an AsyncMock for child mocks https://bugs.python.org/issue38122 #38119: resource tracker destroys shared memory segments when other pr https://bugs.python.org/issue38119 Top 10 most discussed issues (10) ================================= #38061: FreeBSD: Optimize subprocess.Popen(close_fds=True) using close https://bugs.python.org/issue38061 11 msgs #24416: Have date.isocalendar() return a structseq instance https://bugs.python.org/issue24416 9 msgs #36046: support dropping privileges when running subprocesses https://bugs.python.org/issue36046 9 msgs #38081: Different behavior of os.path.realpath('nul') in 3.7 and 3.8 https://bugs.python.org/issue38081 9 msgs #38018: Increase Code Coverage for multiprocessing.shared_memory https://bugs.python.org/issue38018 8 msgs #38106: Race in PyThread_release_lock - can lead to memory corruption https://bugs.python.org/issue38106 8 msgs #28494: is_zipfile false positives https://bugs.python.org/issue28494 7 msgs #36871: Misleading error from unittest.mock's assert_has_calls https://bugs.python.org/issue36871 7 msgs #37531: Fix regrtest timeout for subprocesses: regrtest -jN --timeout= https://bugs.python.org/issue37531 7 msgs #37935: Improve performance of pathlib.scandir() https://bugs.python.org/issue37935 7 msgs Issues closed (201) =================== #9782: _multiprocessing.c warnings under 64-bit Windows https://bugs.python.org/issue9782 closed by steve.dower #9784: _msi.c warnings under 64-bit Windows https://bugs.python.org/issue9784 closed by steve.dower #9938: Add optional keyword argument exit_on_error to argparse.Argume https://bugs.python.org/issue9938 closed by matrixise #10466: locale.py resetlocale throws exception on Windows (getdefaultl https://bugs.python.org/issue10466 closed by steve.dower #11953: Missing WSA* error codes https://bugs.python.org/issue11953 closed by steve.dower #12144: cookielib.CookieJar.make_cookies fails for cookies with 'expir https://bugs.python.org/issue12144 closed by asvetlov #12707: Deprecate addinfourl getters https://bugs.python.org/issue12707 closed by matrixise #13474: Mention of "-m" Flag Missing From Doc on Execution Model https://bugs.python.org/issue13474 closed by mdk #13927: Document time.ctime format https://bugs.python.org/issue13927 closed by p-ganssle #15382: os.utime() mishandles some arguments https://bugs.python.org/issue15382 closed by serhiy.storchaka #16690: Reference leak with custom tp_dealloc in PyType_FromSpec https://bugs.python.org/issue16690 closed by petr.viktorin #17667: Windows: build with "build_pgo.bat -2" fails to optimize pytho https://bugs.python.org/issue17667 closed by steve.dower #18576: Document test.support.script_helper https://bugs.python.org/issue18576 closed by mdk #18578: Rename and document test.bytecode_helper as test.support.bytec https://bugs.python.org/issue18578 closed by matrixise #20490: Show clear error message on circular import https://bugs.python.org/issue20490 closed by steve.dower #20806: os.times document points to wrong section of non-Linux manual https://bugs.python.org/issue20806 closed by serhiy.storchaka #21018: [patch] added missing documentation about escaping characters https://bugs.python.org/issue21018 closed by mdk #21024: PyTypeObject tp_doc is char* instead of const char* https://bugs.python.org/issue21024 closed by serhiy.storchaka #21120: PyArena type is used in headers from the limited API https://bugs.python.org/issue21120 closed by Mark.Shannon #21872: LZMA library sometimes fails to decompress a file https://bugs.python.org/issue21872 closed by gregory.p.smith #23460: Decimals do not obey ':g' exponential notation formatting rule https://bugs.python.org/issue23460 closed by mdk #23837: asyncio: read pipe transport tries to resume reading after loo https://bugs.python.org/issue23837 closed by asvetlov #25068: The proxy key's string should ignore case. https://bugs.python.org/issue25068 closed by matrixise #25237: Add doc for tkinter commondialog.Dialog and subclasses https://bugs.python.org/issue25237 closed by mdk #25461: Unclear language (the word ineffective) in the documentation f https://bugs.python.org/issue25461 closed by benjamin.peterson #26050: Add new StreamReader.readuntil() method https://bugs.python.org/issue26050 closed by xtreak #26140: inspect.iscoroutinefunction raises TypeError when checks Mock https://bugs.python.org/issue26140 closed by asvetlov #27589: asyncio doc: issue in as_completed() doc https://bugs.python.org/issue27589 closed by asvetlov #28237: In xml.etree.ElementTree bytes tag or attributes raises on ser https://bugs.python.org/issue28237 closed by scoder #28569: mock.attach_mock should work with any return value of patch() https://bugs.python.org/issue28569 closed by xtreak #29171: blake2: Remove unused function to avoid undefined references https://bugs.python.org/issue29171 closed by benjamin.peterson #30105: Duplicated connection_made() call for some SSL connections https://bugs.python.org/issue30105 closed by xtreak #30122: Added missing archive programs. https://bugs.python.org/issue30122 closed by mdk #31163: Return destination path in Path.rename and Path.replace https://bugs.python.org/issue31163 closed by jaraco #31226: shutil.rmtree fails when target has an internal directory junc https://bugs.python.org/issue31226 closed by steve.dower #32165: PyEval_InitThreads is called before Py_Initialize in LoadPytho https://bugs.python.org/issue32165 closed by benjamin.peterson #32395: asyncio.StreamReader.readuntil is not general enough https://bugs.python.org/issue32395 closed by asvetlov #32424: Synchronize copy methods between Python and C implementations https://bugs.python.org/issue32424 closed by scoder #32587: Make REG_MULTI_SZ support zero-length strings https://bugs.python.org/issue32587 closed by steve.dower #32790: Keep trailing zeros in precision for string format option g https://bugs.python.org/issue32790 closed by matrixise #32972: unittest.TestCase coroutine support https://bugs.python.org/issue32972 closed by asvetlov #33010: os.path.isdir() returns True for broken directory symlinks or https://bugs.python.org/issue33010 closed by steve.dower #33082: multiprocessing docs bury very important 'callback=' args https://bugs.python.org/issue33082 closed by davin #33166: os.cpu_count() returns wrong number of processors on specific https://bugs.python.org/issue33166 closed by zach.ware #33312: ubsan undefined behavior sanitizer flags struct _dictkeysobjec https://bugs.python.org/issue33312 closed by gregory.p.smith #33459: Fix "tuple display" mention in Expressions https://bugs.python.org/issue33459 closed by mdk #33523: loop.run_until_complete re-entrancy to support more complicate https://bugs.python.org/issue33523 closed by asvetlov #33602: Remove set and queue references from Data Types https://bugs.python.org/issue33602 closed by mdk #34293: DOC: Makefile inherits a Sphinx 1.5 bug regarding PAPER envvar https://bugs.python.org/issue34293 closed by zach.ware #34331: Incorrectly pluralized abstract class error message https://bugs.python.org/issue34331 closed by matrixise #34519: Add additional aliases for HP Roman 8 https://bugs.python.org/issue34519 closed by jaraco #34596: [unittest] raise error if @skip is used with an argument that https://bugs.python.org/issue34596 closed by michael.foord #34634: New asyncio streams API https://bugs.python.org/issue34634 closed by xtreak #34709: Suggestion: make getpass.getuser() also look at SUDO_USER envi https://bugs.python.org/issue34709 closed by gregory.p.smith #35066: Inconsistency between dangling '%' handling in time.strftime() https://bugs.python.org/issue35066 closed by benjamin.peterson #35168: shlex punctuation_chars inconsistency https://bugs.python.org/issue35168 closed by vinay.sajip #35224: PEP 572: Assignment Expressions https://bugs.python.org/issue35224 closed by emilyemorehouse #35253: Linker warning LNK4281 https://bugs.python.org/issue35253 closed by steve.dower #35264: SSL Module build fails with OpenSSL 1.1.0 for Python 2.7 https://bugs.python.org/issue35264 closed by christian.heimes #35325: imp.find_module() return value documentation discrepancy https://bugs.python.org/issue35325 closed by mdk #35592: Not able to use Python 3.7.2 due to SSL issue https://bugs.python.org/issue35592 closed by steve.dower #35620: asyncio test failure on appveyor https://bugs.python.org/issue35620 closed by asvetlov #35640: Allow passing PathLike arguments to SimpleHTTPRequestHandler https://bugs.python.org/issue35640 closed by zach.ware #35649: http.client doesn't close. Infinite loop https://bugs.python.org/issue35649 closed by mdk #35667: activate for venv containing apostrophe doesn't work in powers https://bugs.python.org/issue35667 closed by vinay.sajip #35685: Add samples on patch.dict of the use of decorator and in class https://bugs.python.org/issue35685 closed by mdk #35705: libffi support is not there for windows on ARM64 https://bugs.python.org/issue35705 closed by steve.dower #35795: test_pkgutil test_zipapp fail in AMD64 Windows7 SP1 3.x and A https://bugs.python.org/issue35795 closed by vstinner #35803: Test and document that `dir=...` in tempfile may be PathLike https://bugs.python.org/issue35803 closed by zach.ware #35898: The TARGETDIR variable must be provided when invoking this ins https://bugs.python.org/issue35898 closed by steve.dower #35923: Update the BuiltinImporter in importlib to use loader._ORIGIN https://bugs.python.org/issue35923 closed by corona10 #35941: ssl.enum_certificates() regression https://bugs.python.org/issue35941 closed by christian.heimes #35943: PyImport_GetModule() can return partially-initialized module https://bugs.python.org/issue35943 closed by brett.cannon #36002: configure --enable-optimizations with clang fails to detect ll https://bugs.python.org/issue36002 closed by benjamin.peterson #36182: Path.write_text() docs do not include the case that a file exi https://bugs.python.org/issue36182 closed by mdk #36250: pdb: interaction might cause "ValueError: signal only works in https://bugs.python.org/issue36250 closed by zach.ware #36270: DOC: Add link to sys.exc_info for "Reference Manual" https://bugs.python.org/issue36270 closed by mdk #36311: Flaw in Windows code page decoder for large input https://bugs.python.org/issue36311 closed by steve.dower #36315: Unable to install Python 3.7.2 https://bugs.python.org/issue36315 closed by steve.dower #36373: Deprecate explicit loop parameter in all public asyncio APIs https://bugs.python.org/issue36373 closed by asvetlov #36518: Avoid conflicts when pass arbitrary keyword arguments to Pytho https://bugs.python.org/issue36518 closed by steve.dower #36528: Remove duplicate tests in Lib/tests/re_tests.py https://bugs.python.org/issue36528 closed by benjamin.peterson #36580: unittest.mock does not understand dataclasses https://bugs.python.org/issue36580 closed by xtreak #36634: venv: activate.bat fails for venv with parentheses in PATH https://bugs.python.org/issue36634 closed by steve.dower #36672: A compiler warning in winreg.SetValue() https://bugs.python.org/issue36672 closed by steve.dower #36711: duplicate method definition in Lib/email/feedparser.py https://bugs.python.org/issue36711 closed by benjamin.peterson #36712: duplicate method definition in Lib/email/test/test_email_renam https://bugs.python.org/issue36712 closed by benjamin.peterson #36781: Optimize sum() for bools https://bugs.python.org/issue36781 closed by serhiy.storchaka #36816: self-signed.pythontest.net TLS certificate key is too weak https://bugs.python.org/issue36816 closed by gregory.p.smith #36862: Add Visual Studio 2019 support to PCBuild/env.bat https://bugs.python.org/issue36862 closed by steve.dower #36869: Avoid warning of unused variables https://bugs.python.org/issue36869 closed by inada.naoki #36901: Fix leaks in /PC/bdist_wininst/install.c https://bugs.python.org/issue36901 closed by zach.ware #36919: Exception from 'compile' reports a newline char not present in https://bugs.python.org/issue36919 closed by jaraco #36946: Possible signed integer overflow in slice handling https://bugs.python.org/issue36946 closed by serhiy.storchaka #36960: Make datetime docs more user-friendly https://bugs.python.org/issue36960 closed by p-ganssle #37012: Possible crash due to PyType_FromSpecWithBases() https://bugs.python.org/issue37012 closed by petr.viktorin #37090: test_gdb's test_pycfunction should test all calling convention https://bugs.python.org/issue37090 closed by petr.viktorin #37151: Calling code cleanup after PEP 590 https://bugs.python.org/issue37151 closed by petr.viktorin #37212: ordered keyword arguments in unittest.mock.call repr and error https://bugs.python.org/issue37212 closed by zach.ware #37251: Mocking a MagicMock with a function spec results in an AsyncMo https://bugs.python.org/issue37251 closed by lisroach #37252: devpoll test failures on Solaris https://bugs.python.org/issue37252 closed by benjamin.peterson #37283: Unexpected behavior when running installer a second time with https://bugs.python.org/issue37283 closed by steve.dower #37305: Add MIME type for Web App Manifest https://bugs.python.org/issue37305 closed by jaraco #37383: call count in not registered in AsyncMock till the coroutine i https://bugs.python.org/issue37383 closed by xtreak #37405: socket.getsockname() returns string instead of tuple https://bugs.python.org/issue37405 closed by benjamin.peterson #37445: Some FormatMessageW() calls use FORMAT_MESSAGE_FROM_SYSTEM wit https://bugs.python.org/issue37445 closed by steve.dower #37455: asyncio.run() error related to finalizing async generators https://bugs.python.org/issue37455 closed by xtreak #37480: add ptpython to list of alternate interpreters https://bugs.python.org/issue37480 closed by matrixise #37488: Document the "gotcha" behaviors in utcnow() and utcfromtimesta https://bugs.python.org/issue37488 closed by p-ganssle #37499: test_gdb.test_pycfunction should use dedicated test functions https://bugs.python.org/issue37499 closed by p-ganssle #37504: Documentation fails to build when using Sphinx' texinfo builde https://bugs.python.org/issue37504 closed by steve.dower #37574: Mention spec_from_loader() in Finder.find_spec() docs. https://bugs.python.org/issue37574 closed by steve.dower #37589: Missing dependences in the Makefile https://bugs.python.org/issue37589 closed by twouters #37597: audit event table breaks PDF sphinx build https://bugs.python.org/issue37597 closed by steve.dower #37619: update_one_slot() should not ignore wrapper descriptors for wr https://bugs.python.org/issue37619 closed by twouters #37637: multiprocessing numpy.ndarray not transmitted properly https://bugs.python.org/issue37637 closed by davin #37649: calculate_init fails to check that EXEC_PREFIX was decoded https://bugs.python.org/issue37649 closed by steve.dower #37651: Change of inheritance of asyncio.CancelledError needs document https://bugs.python.org/issue37651 closed by asvetlov #37662: Document venv.EnvBuilder.upgrade_dependencies() https://bugs.python.org/issue37662 closed by vinay.sajip #37683: Use importlib.resources in venv https://bugs.python.org/issue37683 closed by brett.cannon #37698: Update doc of PyBuffer_ToContiguous https://bugs.python.org/issue37698 closed by matrixise #37702: memory leak in ssl certification https://bugs.python.org/issue37702 closed by steve.dower #37705: winerror_to_errno implementation https://bugs.python.org/issue37705 closed by steve.dower #37750: PyBuffer_FromContiguous not documented https://bugs.python.org/issue37750 closed by matrixise #37752: Redundant Py_CHARMASK called in some files https://bugs.python.org/issue37752 closed by steve.dower #37758: unicodedata checksum-tests only test 1/17th of Unicode's codep https://bugs.python.org/issue37758 closed by benjamin.peterson #37760: Refactor makeunicodedata.py: dedupe parsing, use dataclass https://bugs.python.org/issue37760 closed by benjamin.peterson #37785: argparse uses %s in gettext calls causing xgettext warnings https://bugs.python.org/issue37785 closed by mdk #37802: micro-optimization of PyLong_FromSize_t() https://bugs.python.org/issue37802 closed by gregory.p.smith #37803: "python -m pdb --help" does not work https://bugs.python.org/issue37803 closed by benjamin.peterson #37829: Documentation of stdlib: add example of mixed arguments to dic https://bugs.python.org/issue37829 closed by matrixise #37872: Move _Py_IDENTIFIER statics in Python/import.c to top of the f https://bugs.python.org/issue37872 closed by eric.snow #37876: Tests for Rot13 codec https://bugs.python.org/issue37876 closed by steve.dower #37885: venv: Don't produce unbound variable warning on deactivate https://bugs.python.org/issue37885 closed by twouters #37908: Add an example of ArgumentParser.exit() https://bugs.python.org/issue37908 closed by matrixise #37909: Thread pool return ref hold memory https://bugs.python.org/issue37909 closed by asvetlov #37913: Document that __length_hint__ may return NotImplemented https://bugs.python.org/issue37913 closed by steve.dower #37936: gitignore file is too broad https://bugs.python.org/issue37936 closed by benjamin.peterson #37967: Beta GPG signature check failing https://bugs.python.org/issue37967 closed by ned.deily #37992: Change datetime.MINYEAR to allow for negative years https://bugs.python.org/issue37992 closed by terry.reedy #37993: os.path.realpath on Windows resolves mapped network drives https://bugs.python.org/issue37993 closed by steve.dower #37995: Multiline ast.dump() https://bugs.python.org/issue37995 closed by serhiy.storchaka #38000: importlib can not handle module file names with periods https://bugs.python.org/issue38000 closed by brett.cannon #38003: Change 2to3 to replace 'basestring' with '(str,bytes)' https://bugs.python.org/issue38003 closed by benjamin.peterson #38007: Regression: name of PyType_Spec::slots conflicts with Qt macro https://bugs.python.org/issue38007 closed by steve.dower #38008: ContextManager and AsyncContextManager protocols can't be subc https://bugs.python.org/issue38008 closed by levkivskyi #38015: inline function generates slightly inefficient machine code https://bugs.python.org/issue38015 closed by Ma Lin #38034: Typo on logging.handlers.QueueListener documentation https://bugs.python.org/issue38034 closed by vinay.sajip #38037: reference counter issue in signal module https://bugs.python.org/issue38037 closed by vstinner #38038: Remove urllib.parse._splittype from xmlrpc.client https://bugs.python.org/issue38038 closed by corona10 #38046: Can't use sort_keys in json.dumps with mismatched types https://bugs.python.org/issue38046 closed by josh.r #38048: unususal behavior https://bugs.python.org/issue38048 closed by eric.smith #38049: Add command-line interface for the ast module https://bugs.python.org/issue38049 closed by serhiy.storchaka #38053: Update plistlib documentation https://bugs.python.org/issue38053 closed by ronaldoussoren #38054: enhance pdb.set_trace() to run when the specified condition is https://bugs.python.org/issue38054 closed by zach.ware #38058: Tutorial: 4.2. for Statements https://bugs.python.org/issue38058 closed by Derangedn00b #38059: Using sys.exit() over exit() in inspect.py https://bugs.python.org/issue38059 closed by steve.dower #38060: precedence (relational, logical operator)not working with sing https://bugs.python.org/issue38060 closed by tim.peters #38064: Spam https://bugs.python.org/issue38064 closed by xtreak #38066: Hide internal asyncio.Stream methods https://bugs.python.org/issue38066 closed by asvetlov #38069: Make _posixsubprocess PEP-384 compatible https://bugs.python.org/issue38069 closed by christian.heimes #38071: Make termios PEP-384 compatible https://bugs.python.org/issue38071 closed by christian.heimes #38072: Make grp module PEP-384 compatible https://bugs.python.org/issue38072 closed by christian.heimes #38074: Make zlib PEP-384 compatible https://bugs.python.org/issue38074 closed by christian.heimes #38076: Make struct module PEP-384 compatible https://bugs.python.org/issue38076 closed by christian.heimes #38082: datetime.time object incorrectly shows associated date in strf https://bugs.python.org/issue38082 closed by p-ganssle #38083: Minor improvements in asdl_c.py and Python-ast.c https://bugs.python.org/issue38083 closed by serhiy.storchaka #38084: multiprocessing cannot recover from crashed worker https://bugs.python.org/issue38084 closed by vstinner #38086: Synchronize importlib.metadata with importlib_metadata 0.21 https://bugs.python.org/issue38086 closed by jaraco #38087: test_ntpath must account for casing changes https://bugs.python.org/issue38087 closed by steve.dower #38088: distutils cannot locate vcruntime140.dll with only VS 2019 ins https://bugs.python.org/issue38088 closed by steve.dower #38089: Make macOS tests optional on Azure Pipelines https://bugs.python.org/issue38089 closed by steve.dower #38090: test_ctypes is leaking references https://bugs.python.org/issue38090 closed by steve.dower #38092: environment variables not passed correctly using new virtualen https://bugs.python.org/issue38092 closed by steve.dower #38096: Clean up the "struct sequence" / "named tuple" docs https://bugs.python.org/issue38096 closed by p-ganssle #38098: Special Characters Don't Work When Using Virtual Environment https://bugs.python.org/issue38098 closed by eryksun #38102: Document importlib.machinery.WindowsRegistryFinder.DEBUG_BUILD https://bugs.python.org/issue38102 closed by brett.cannon #38103: Duplicate label "examples" in the Docs https://bugs.python.org/issue38103 closed by ezio.melotti #38104: File descriptor error when subprocess call is used with event https://bugs.python.org/issue38104 closed by asvetlov #38105: hash collision when hash(x) == -2 causes many calls to __eq__ https://bugs.python.org/issue38105 closed by rhettinger #38107: Replace direct future and task contructor calls with factories https://bugs.python.org/issue38107 closed by asvetlov #38111: Error while building Python from source https://bugs.python.org/issue38111 closed by zach.ware #38113: Remove statics from ast.c https://bugs.python.org/issue38113 closed by eric.snow #38114: Exclude pip.ini from Nuget package https://bugs.python.org/issue38114 closed by steve.dower #38117: Update to OpenSSL 1.1.1d, 1.1.0l, 1.0.2t https://bugs.python.org/issue38117 closed by matrixise #38120: DeprecationWarning in test_random due to invalid seed argument https://bugs.python.org/issue38120 closed by serhiy.storchaka #38121: Synchronize importlib.metadata with importlib_metadata 0.22 https://bugs.python.org/issue38121 closed by jaraco #38123: Unable to find Python3.8.0b4 on Ubuntu 19004 desktop https://bugs.python.org/issue38123 closed by zach.ware #38124: off-by-one error in PyState_AddModule https://bugs.python.org/issue38124 closed by benjamin.peterson #38127: A fatal error when running test_ctypes https://bugs.python.org/issue38127 closed by benjamin.peterson #38129: Spam https://bugs.python.org/issue38129 closed by xtreak #38133: py.exe cannot locate Store package https://bugs.python.org/issue38133 closed by steve.dower #38134: Remove copy of fast PBKDF2 algorithm https://bugs.python.org/issue38134 closed by christian.heimes #38138: test_importlib is leaking references https://bugs.python.org/issue38138 closed by matrixise #38139: [BUG] datetime.strptime could not handle timezone https://bugs.python.org/issue38139 closed by p-ganssle #38143: plistlib: cleanup PEP8 violations https://bugs.python.org/issue38143 closed by mdk #38148: Add slots to asyncio transports https://bugs.python.org/issue38148 closed by asvetlov #38150: test_capi: test_c_subclass_of_heap_ctype_with_del_modifying_du https://bugs.python.org/issue38150 closed by matrixise #38151: test_types: test_duck_gen() leaks reference https://bugs.python.org/issue38151 closed by vstinner #1154351: add get_current_dir_name() to os module https://bugs.python.org/issue1154351 closed by vstinner #1559298: test_popen fails on Windows if installed to "Program Files" https://bugs.python.org/issue1559298 closed by steve.dower

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Buildbot failures
by Victor Stinner Sept. 13, 2019

Sept. 13, 2019

Hi, Many buildbot workers failed in the last 48 hours, it's likely related to higher activity caused by the core dev sprint currently running at London. Here are failures in random order. Can someone please have a look? I suggest to add comments to issues for collaboration. test__xxsubinterpreters: random failures on AMD64 FreeBSD CURRENT Shared 3.x https://bugs.python.org/issue38154 ERROR: test_extra_groups (test.test_subprocess.POSIXProcessTestCase) ERROR: test_group (test.test_subprocess.POSIXProcessTestCase) (group='nogroup') ERROR: test_user (test.test_subprocess.POSIXProcessTestCase) (user=65534) ERROR: test_user (test.test_subprocess.POSIXProcessTestCase) (user='nobody') https://bugs.python.org/issue36046#msg352265 AST change introduced tons of reference leaks https://bugs.python.org/issue38152 test_capi leaked [2, 2, 2] references, sum=6 https://bugs.python.org/issue38150 Victor

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(no subject)
by Victor Stinner Sept. 13, 2019

Sept. 13, 2019

Hi, FYI Yury Selivanov just proposed PEP 603 which is now discussed at: https://discuss.python.org/t/pep-603-adding-a-frozenmap-type-to-collections… PEP-603: Adding a frozenmap type to collections https://www.python.org/dev/peps/pep-0603/ I don't have a strong preference between python-dev or discuss.python.org to discuss PEPs, but it would be nice to send at least a notice on python-dev when a discussion on a PEP is started on discuss.python.org. Previously, almost all PEPs were posted to python-dev (except maybe packaging PEPs). Note : I like this PEP, but let's discuss it there ;-) Victor

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