Mailman 3 December 2020 - Python-Dev

Summary of Python tracker Issues
by Python tracker Dec. 25, 2020

Dec. 25, 2020

ACTIVITY SUMMARY (2020-12-18 - 2020-12-25) 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 7554 ( +0) closed 46925 (+68) total 54479 (+68) Open issues with patches: 3033 Issues opened (49) ================== #42634: Incorrect line number in bytecode for try-except-finally https://bugs.python.org/issue42634 reopened by nedbat #42676: zoneinfo uses locale depending functions for parsing https://bugs.python.org/issue42676 opened by serhiy.storchaka #42677: Support comments in argparse fromfile_prefix_chars files https://bugs.python.org/issue42677 opened by nabelekt #42678: [Enum] _sunder_ methods only looked up in the last Enum class https://bugs.python.org/issue42678 opened by ethan.furman #42679: Minor improvement in datetime.timestamp() docs https://bugs.python.org/issue42679 opened by olvinroght #42680: unicode identifiers not accessible or assignable through globa https://bugs.python.org/issue42680 opened by outofculture #42681: mistake in curses documentation https://bugs.python.org/issue42681 opened by arbor #42682: awaiting a wrapped asyncio.Task multiple times gives long, rep https://bugs.python.org/issue42682 opened by lilydjwg #42683: asyncio should handle keyboard interrupt while the event loop https://bugs.python.org/issue42683 opened by paul.moore #42684: Improvements to documentation for PyUnicode_FS{Converter,Decod https://bugs.python.org/issue42684 opened by Antony.Lee #42686: include built-in Math functions in SQLite to 3.35.0 of march 2 https://bugs.python.org/issue42686 opened by Big Stone #42687: tokenize module does not recognize Barry as FLUFL https://bugs.python.org/issue42687 opened by esoma #42688: ctypes memory error on Apple Silicon with external libffi https://bugs.python.org/issue42688 opened by erykoff #42690: Aiohttp fails when using intel ax200 wireless card https://bugs.python.org/issue42690 opened by JasperTecHK #42692: Build fails on macOS when compiler doesn't define __has_builti https://bugs.python.org/issue42692 opened by jmr #42693: "if 0:" lines are traced; they didn't use to be https://bugs.python.org/issue42693 opened by nedbat #42694: Failed test_new_curses_panel in test_curses https://bugs.python.org/issue42694 opened by serhiy.storchaka #42696: Duplicated unused bytecodes at end of function https://bugs.python.org/issue42696 opened by nedbat #42698: Deadlock in pysqlite_connection_dealloc() https://bugs.python.org/issue42698 opened by hydroflask #42700: xml.parsers.expat.errors description of codes/messages is flip https://bugs.python.org/issue42700 opened by goodmami #42705: Intercepting thread lock objects not working under context man https://bugs.python.org/issue42705 opened by mhmdkanj #42707: Python uses ANSI CP for stdio on Windows console instead of us https://bugs.python.org/issue42707 opened by u36959 #42710: Viewing pydoc API documentation https://bugs.python.org/issue42710 opened by Faris Chugthai #42712: Segmentation fault in running ast.literal_eval() with large ex https://bugs.python.org/issue42712 opened by xxm #42713: Segmentation fault in running eval() with large expression siz https://bugs.python.org/issue42713 opened by xxm #42714: Segmentation fault in running compile() with large expression https://bugs.python.org/issue42714 opened by xxm #42715: Segmentation fault in running exec() with large expression siz https://bugs.python.org/issue42715 opened by xxm #42716: Segmentation fault in running ast.parse() with large expressio https://bugs.python.org/issue42716 opened by xxm #42717: The python interpreter crashed with "_enter_buffered_busy" https://bugs.python.org/issue42717 opened by xxm #42719: Eliminate NOPs in the assembler, by emitting zero-width entrie https://bugs.python.org/issue42719 opened by Mark.Shannon #42721: Using of simple dialogs without default root window https://bugs.python.org/issue42721 opened by serhiy.storchaka #42722: Add --debug command line option to unittest to enable post-mor https://bugs.python.org/issue42722 opened by Dominik V. #42724: Change library name when building. https://bugs.python.org/issue42724 opened by corentin.bolou27 #42725: PEP 563: Should the behavior change for yield/yield from's https://bugs.python.org/issue42725 opened by BTaskaya #42727: [Enum] EnumMeta.__prepare__ needs to accept **kwds https://bugs.python.org/issue42727 opened by ethan.furman #42728: Typo in documentation: importlib.metadata https://bugs.python.org/issue42728 opened by sighingnow #42730: TypeError/hang inside of Time.Sleep() when _thread.interrupt_m https://bugs.python.org/issue42730 opened by AR-Kareem #42731: Enhancement request for proxying PyString https://bugs.python.org/issue42731 opened by Thrameos #42733: [issue] io's r+ mode truncate(0) https://bugs.python.org/issue42733 opened by ke265379ke #42734: Outdated CodeType call in "bogus_code_obj.py" https://bugs.python.org/issue42734 opened by xxm #42735: "trace_at_recursion_limit.py" should be removed from "Python/L https://bugs.python.org/issue42735 opened by xxm #42736: Add support for making Linux prctl(...) calls to subprocess https://bugs.python.org/issue42736 opened by gregory.p.smith #42737: PEP 563: drop annotations for complex assign targets https://bugs.python.org/issue42737 opened by BTaskaya #42738: subprocess: don't close all file descriptors by default (close https://bugs.python.org/issue42738 opened by vstinner #42739: Crash when try to disassemble bogus code object https://bugs.python.org/issue42739 opened by serhiy.storchaka #42740: typing.py get_args and get_origin should support PEP 604 and 6 https://bugs.python.org/issue42740 opened by kj #42741: Sync 3.9's whatsnew document in 3.10 with 3.9 branch https://bugs.python.org/issue42741 opened by kj #42742: Add abc.Mapping to dataclass https://bugs.python.org/issue42742 opened by abrosimov.a.a #42743: pdb vanishing breakpoints https://bugs.python.org/issue42743 opened by ds2606 Most recent 15 issues with no replies (15) ========================================== #42743: pdb vanishing breakpoints https://bugs.python.org/issue42743 #42741: Sync 3.9's whatsnew document in 3.10 with 3.9 branch https://bugs.python.org/issue42741 #42740: typing.py get_args and get_origin should support PEP 604 and 6 https://bugs.python.org/issue42740 #42739: Crash when try to disassemble bogus code object https://bugs.python.org/issue42739 #42738: subprocess: don't close all file descriptors by default (close https://bugs.python.org/issue42738 #42737: PEP 563: drop annotations for complex assign targets https://bugs.python.org/issue42737 #42736: Add support for making Linux prctl(...) calls to subprocess https://bugs.python.org/issue42736 #42735: "trace_at_recursion_limit.py" should be removed from "Python/L https://bugs.python.org/issue42735 #42728: Typo in documentation: importlib.metadata https://bugs.python.org/issue42728 #42722: Add --debug command line option to unittest to enable post-mor https://bugs.python.org/issue42722 #42719: Eliminate NOPs in the assembler, by emitting zero-width entrie https://bugs.python.org/issue42719 #42713: Segmentation fault in running eval() with large expression siz https://bugs.python.org/issue42713 #42710: Viewing pydoc API documentation https://bugs.python.org/issue42710 #42700: xml.parsers.expat.errors description of codes/messages is flip https://bugs.python.org/issue42700 #42694: Failed test_new_curses_panel in test_curses https://bugs.python.org/issue42694 Most recent 15 issues waiting for review (15) ============================================= #42741: Sync 3.9's whatsnew document in 3.10 with 3.9 branch https://bugs.python.org/issue42741 #42740: typing.py get_args and get_origin should support PEP 604 and 6 https://bugs.python.org/issue42740 #42734: Outdated CodeType call in "bogus_code_obj.py" https://bugs.python.org/issue42734 #42728: Typo in documentation: importlib.metadata https://bugs.python.org/issue42728 #42727: [Enum] EnumMeta.__prepare__ needs to accept **kwds https://bugs.python.org/issue42727 #42722: Add --debug command line option to unittest to enable post-mor https://bugs.python.org/issue42722 #42721: Using of simple dialogs without default root window https://bugs.python.org/issue42721 #42700: xml.parsers.expat.errors description of codes/messages is flip https://bugs.python.org/issue42700 #42692: Build fails on macOS when compiler doesn't define __has_builti https://bugs.python.org/issue42692 #42688: ctypes memory error on Apple Silicon with external libffi https://bugs.python.org/issue42688 #42687: tokenize module does not recognize Barry as FLUFL https://bugs.python.org/issue42687 #42681: mistake in curses documentation https://bugs.python.org/issue42681 #42673: Optimize round_size for rehashing https://bugs.python.org/issue42673 #42671: Make the Python finalization more deterministic https://bugs.python.org/issue42671 #42663: zoneinfo does not support full range of allowed transition hou https://bugs.python.org/issue42663 Top 10 most discussed issues (10) ================================= #42693: "if 0:" lines are traced; they didn't use to be https://bugs.python.org/issue42693 23 msgs #38435: Start the deprecation cycle for subprocess preexec_fn https://bugs.python.org/issue38435 9 msgs #42725: PEP 563: Should the behavior change for yield/yield from's https://bugs.python.org/issue42725 8 msgs #42677: Support comments in argparse fromfile_prefix_chars files https://bugs.python.org/issue42677 6 msgs #42686: include built-in Math functions in SQLite to 3.35.0 of march 2 https://bugs.python.org/issue42686 6 msgs #42707: Python uses ANSI CP for stdio on Windows console instead of us https://bugs.python.org/issue42707 6 msgs #42696: Duplicated unused bytecodes at end of function https://bugs.python.org/issue42696 5 msgs #42727: [Enum] EnumMeta.__prepare__ needs to accept **kwds https://bugs.python.org/issue42727 5 msgs #42734: Outdated CodeType call in "bogus_code_obj.py" https://bugs.python.org/issue42734 5 msgs #42042: sphinx3 renders diffrently docs.python.org for 3.10 https://bugs.python.org/issue42042 4 msgs Issues closed (61) ================== #9694: argparse required arguments displayed under "optional argument https://bugs.python.org/issue9694 closed by rhettinger #12800: 'tarfile.StreamError: seeking backwards is not allowed' when e https://bugs.python.org/issue12800 closed by mdk #17140: Document multiprocessing.pool.ThreadPool https://bugs.python.org/issue17140 closed by ned.deily #18131: Tkinter Variables require a proper master https://bugs.python.org/issue18131 closed by serhiy.storchaka #19733: Setting image parameter of a button crashes with Cocoa Tk https://bugs.python.org/issue19733 closed by serhiy.storchaka #23522: Misleading note in Statistics module documentation https://bugs.python.org/issue23522 closed by steven.daprano #24792: zipimporter masks import errors https://bugs.python.org/issue24792 closed by iritkatriel #25246: Alternative algorithm for deque_remove() https://bugs.python.org/issue25246 closed by rhettinger #29030: argparse: choices override default metavar https://bugs.python.org/issue29030 closed by rhettinger #31483: ButtonPress event not firing until button release Python 3.6.1 https://bugs.python.org/issue31483 closed by serhiy.storchaka #32112: Should uuid.UUID() accept another UUID() instance? https://bugs.python.org/issue32112 closed by iritkatriel #35790: Correct the description of sys.exc_info() and add a code examp https://bugs.python.org/issue35790 closed by mdk #36675: Doctest directives and comments missing from code samples https://bugs.python.org/issue36675 closed by mdk #36968: Top level transient modal windows stopping deiconify on window https://bugs.python.org/issue36968 closed by serhiy.storchaka #37232: Parallel compilation fails because of low ulimit. https://bugs.python.org/issue37232 closed by kulikjak #37717: argparse subcommand docs has non-existent parameter "action" https://bugs.python.org/issue37717 closed by paul.j3 #37779: configparser: add documentation about several read() behaviour https://bugs.python.org/issue37779 closed by sblondon #38308: Add optional weighting to statistics.harmonic_mean() https://bugs.python.org/issue38308 closed by rhettinger #38381: Possible wordcode optimization for STORE/LOAD pairs https://bugs.python.org/issue38381 closed by rhettinger #40219: ttk LabeledScale: label covered by hidden element https://bugs.python.org/issue40219 closed by serhiy.storchaka #40284: Add mapping methods to types.SimpleNamespace https://bugs.python.org/issue40284 closed by rhettinger #40866: Use PyModule_AddType() in posix module initialisation https://bugs.python.org/issue40866 closed by erlendaasland #41724: SQLite returns "str" instead of "datetime.datetime" with aggre https://bugs.python.org/issue41724 closed by eric.smith #41960: Add globalns and localns to the inspect.signature and inspect. https://bugs.python.org/issue41960 closed by BTaskaya #42008: Internal Random class calling seed() with incorrect argument https://bugs.python.org/issue42008 closed by rhettinger #42277: Solaris & PEP 3149: start using ABI version tagged .so files https://bugs.python.org/issue42277 closed by kulikjak #42470: DeprecationWarning triggers for sequences which happen to be s https://bugs.python.org/issue42470 closed by rhettinger #42525: Optimize class/module level annotation https://bugs.python.org/issue42525 closed by serhiy.storchaka #42529: CPython DLL initialization routine failed from PYC cache file https://bugs.python.org/issue42529 closed by Thrameos #42559: random.getrandbits: Should it be explicit that it returns unsi https://bugs.python.org/issue42559 closed by rhettinger #42572: Better path handling with argparse https://bugs.python.org/issue42572 closed by rhettinger #42604: EXT_SUFFIX too short on FreeBSD and AIX https://bugs.python.org/issue42604 closed by pablogsal #42630: Variable.__init__ raises obscure AttributeError https://bugs.python.org/issue42630 closed by serhiy.storchaka #42650: Can people use dest=argparse.SUPPRESS in custom Action classes https://bugs.python.org/issue42650 closed by bmw #42651: Recursive traceback crashes Python Interpreter https://bugs.python.org/issue42651 closed by ronaldoussoren #42652: recursive in finally clause cause Python interpreter crash. https://bugs.python.org/issue42652 closed by ronaldoussoren #42669: "except" documentation still suggests nested tuples are allowe https://bugs.python.org/issue42669 closed by eric.smith #42670: Missing word in itertools.product https://bugs.python.org/issue42670 closed by rhettinger #42672: tkinter/__init__.py raises a NameError if NoDefaultRoot() https://bugs.python.org/issue42672 closed by serhiy.storchaka #42674: __init_subclass__ only called for first subclass when class ha https://bugs.python.org/issue42674 closed by ethan.furman #42675: Document changes made in bpo-42195 https://bugs.python.org/issue42675 closed by kj #42685: Improve placing of simple query windows. https://bugs.python.org/issue42685 closed by serhiy.storchaka #42689: Installation https://bugs.python.org/issue42689 closed by josh.r #42691: macOS 11.1 + Homebrew 2.6.2 + Python 3.9.1 = "IDLE" crash https://bugs.python.org/issue42691 closed by ned.deily #42695: tkinter keysym_num value is incorrect https://bugs.python.org/issue42695 closed by serhiy.storchaka #42697: 3.8.7rc1 regression: 'free(): invalid pointer' after running b https://bugs.python.org/issue42697 closed by pablogsal #42699: Use `.join(k for k in g)` instead of `.join([k for k in g])` https://bugs.python.org/issue42699 closed by rhettinger #42701: Discrepency between configure.ac and configure https://bugs.python.org/issue42701 closed by ned.deily #42702: Inconsistent state after autoreconf https://bugs.python.org/issue42702 closed by agbaroni #42703: Asyncio Event Documentation Links Incorrect https://bugs.python.org/issue42703 closed by asvetlov #42704: [macOS] [python3.7] : platform.machine() returns x86_64 on ARM https://bugs.python.org/issue42704 closed by ned.deily #42706: random.uniform 2x slower than inline implementation https://bugs.python.org/issue42706 closed by rhettinger #42708: AttributeError when running multiprocessing on MacOS 11 with A https://bugs.python.org/issue42708 closed by reeyarn #42709: I https://bugs.python.org/issue42709 closed by rhettinger #42711: lru_cache and NotImplemented https://bugs.python.org/issue42711 closed by rhettinger #42718: Allow zero-width entries in code.co_lines() https://bugs.python.org/issue42718 closed by Mark.Shannon #42720: << operator has a bug https://bugs.python.org/issue42720 closed by eric.smith #42723: Unclear why dict unpacking cannot be used in dict comprehensio https://bugs.python.org/issue42723 closed by steven.daprano #42726: gdb/libpython.py InstanceProxy does not work with py3 https://bugs.python.org/issue42726 closed by miss-islington #42729: tokenize, ast: No direct way to parse tokens into AST, a gap i https://bugs.python.org/issue42729 closed by serhiy.storchaka #42732: Buildbot s390x Fedora LTO + PGO 3.x fails intermittently https://bugs.python.org/issue42732 closed by kj

1 0

Python package funding through command-line
by r22133yash＠dpsrkp.net Dec. 25, 2020

Dec. 25, 2020

Many open-source developers are committing to several projects, developing package (for Python). A fraction of developers might need funds for the continuing development of several projects and to pursue contributing. Sadly, there is no direct short way for donors to fund python package developers. There is no particular function in the python package installer(pip) and the site. A command-line argument(pip3 fund) for listing the funding pages of package developer for packages installed by them (global or pyenv), will help donors to reach such developers easily. The funding page can be the GitHub sponsor page, or PayPal redirect (control of the developer) Similar implementations include the "npm fund" command. This command retrieves information on how to fund the dependencies of a given project, released 4-5 months ago which has gained momentum.

3 2

Re: unittest of sequence equality
by David Mertz Dec. 22, 2020

Dec. 22, 2020

On Tue, Dec 22, 2020 at 11:44 PM Alan G. Isaac <alan.isaac(a)gmail.com> wrote: > My question is not about work arounds. > It is about whether the current definition of a sequence > (in collections.abc) should govern `assertSequenceEqual`. > Why do you think a NumPy array is a sequence? E.g.: >>> a array([[1, 2], [3, 4]]) >>> b [1, 2] >>> len(a) = len(b) Ok, I suppose if you then loop through indices, you indeed get different things. But N-dimensional arrays aren't "indexed by an integer" except in the sense of an edge case. I've always read the Glossary as more narrowly "element access using ONLY integer indices." Moreover, if you propose to ignore `==` comparison and always loop, will you do so recursively? What about: assertSequenceEqual(a, [[1,2], [3,4]]) -- The dead increasingly dominate and strangle both the living and the not-yet born. Vampiric capital and undead corporate persons abuse the lives and control the thoughts of homo faber. Ideas, once born, become abortifacients against new conceptions.

1 0

[RELEASE] Python 3.8.7 is now available
by Łukasz Langa Dec. 21, 2020

Dec. 21, 2020

Python 3.8.7 is the seventh maintenance release of Python 3.8. Go get it here: https://www.python.org/downloads/release/python-387/ <https://www.python.org/downloads/release/python-387/> Note: this is a bugfix release for the 3.8 series which was superseded by Python 3.9, currently the latest feature release series of Python 3. You can find the latest release of 3.9.x here <https://www.python.org/downloads/>. Maintenance releases for the 3.8 series will continue at regular bi-monthly intervals, with 3.8.8 planned for February 2021. macOS 11 Big Sur not fully supported Python 3.8.7 is not yet fully supported on macOS 11 Big Sur. It will install on macOS 11 Big Sur and will run on Apple Silicon Macs using Rosetta 2 translation. However, a few features do not work correctly, most noticeably those involving searching for system libraries (vs user libraries) such as ctypes.util.find_library() and in Distutils. This limitation affects both Apple Silicon and Intel processors. We are looking into improving the situation for Python 3.8.8. Python 3.9.1 <https://www.python.org/downloads/release/python-391/> provides full support for Big Sur and Apple Silicon Macs, including building natively on Apple Silicon Macs and support for universal2 binaries. What’s new? The Python 3.8 series contains many new features and optimizations over 3.7. See the “What’s New in Python 3.8 <https://docs.python.org/3.8/whatsnew/3.8.html>” document for more information about features included in the 3.8 series. Detailed information about all changes made in version 3.8.7 specifically can be found in its change log <https://docs.python.org/release/3.8.7/whatsnew/changelog.html#python-3-8-7>. Note that compared to 3.8.6 this release also contains all changes present in 3.8.7rc1. We hope you enjoy Python 3.8! Thanks to all of the many volunteers who help make Python Development and these releases possible! Please consider supporting our efforts by volunteering yourself or through organization contributions to the Python Software Foundation. Your friendly release team, Ned Deily @nad <https://discuss.python.org/u/nad> Steve Dower @steve.dower <https://discuss.python.org/u/steve.dower> Łukasz Langa @ambv <https://discuss.python.org/u/ambv>

1 0

CPython codebase plots
by Pablo Galindo Salgado Dec. 21, 2020

Dec. 21, 2020

Hi, The year is almost over and plenty of internet services are generating the “2020 in review” summary so I hope everyone is in the mood for some extra summary plots. I have generated some “CPython lifetime in review” plots that I hope you enjoy. You can check them out here: https://discuss.python.org/t/cpython-codebase-plots/6267 Regards from cloudy London, Pablo Galindo Salgado

1 0

How to add multiple python kernel(2.7.x,3.6.x,3.7.x) to jupyterhub
by Shaik Zainul Dec. 20, 2020

Dec. 20, 2020

Hi, i am new to jupyterhub and i am trying to setup 1. add multiple python kernel(2.7.x,3.6.x,3.7.x) to jupyterhub 2. setup user specific kernel - means i have 3 kernels PY3, Pyspark and R. how can i assign this 3 PY3, Pyspark and R kernels to User1, User2 and User3 respectively on Jupyterhub. my default python version is 3.6.8 which is installed from python sourcefile, and i am able to run jupyterhub with python3. Python path: /share/apps/platform/ai/py36/3_6_8/bin/python3 But now i am trying to add Python 2.7.16 Python path: /share/apps/platform/ai/py27/2_7_16/bin/python *# jupyter-kernelspec listAvailable kernels:ir /root/.local/share/jupyter/kernels/irpyspark /share/apps/platform/ai/py36/3_6_9/share/jupyter/kernels/pysparkpython3 /share/apps/platform/ai/py36/3_6_9/share/jupyter/kernels/python3* Please guide me to add multiple python kernels and also how to setup user specific kernels in Jupyterhub. -- *Regards* *Zain*

2 1

Perceus useful for Python
by garyrob＠me.com Dec. 19, 2020

Dec. 19, 2020

A recent technical note from Microsoft describes a new reference counting algorithm, Perceus. It seemed worth posting here in case there are any thoughts about whether it might be useful for Python. I couldn't find any existing references to it in this list. """ We introduce Perceus, an algorithm for precise reference counting with reuse and specialization. Starting from a func- tional core language with explicit control-flow, Perceus emits precise reference counting instructions such that programs are garbage free, where only live references are retained. This enables further optimizations, like reuse analysis that allows for guaranteed in-place updates at runtime. This in turn enables a novel programming paradigm that we call functional but in-place (FBIP). Much like tail-call optimiza- tion enables writing loops with regular function calls, reuse analysis enables writing in-place mutating algorithms in a purely functional way. We give a novel formalization of ref- erence counting in a linear resource calculus, and prove that Perceus is sound and garbage free. We show evidence that Perceus, as implemented in Koka, has good performance and is competitive with other state-of-the-art memory collectors. """ https://www.microsoft.com/en-us/research/uploads/prod/2020/11/perceus-tr-v1…

1 0

Summary of Python tracker Issues
by Python tracker Dec. 18, 2020

Dec. 18, 2020

ACTIVITY SUMMARY (2020-12-11 - 2020-12-18) 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 7554 (-13) closed 46857 (+66) total 54411 (+53) Open issues with patches: 3040 Issues opened (40) ================== #15651: PEP 3121, 384 refactoring applied to elementtree module https://bugs.python.org/issue15651 reopened by vstinner #26564: Malloc debug hooks: display memory block traceback on error https://bugs.python.org/issue26564 reopened by iritkatriel #36541: Make lib2to3 grammar better match Python, support the := walru https://bugs.python.org/issue36541 reopened by gregory.p.smith #42624: sqlite3 package document mistake https://bugs.python.org/issue42624 opened by seeker-Liu #42626: readline history, vi-editingmode and ANSI color codes bug https://bugs.python.org/issue42626 opened by nijoakim #42627: urllib.request.getproxies() misparses Windows registry proxy s https://bugs.python.org/issue42627 opened by benrg #42628: binascii doesn't work on some base64 https://bugs.python.org/issue42628 opened by kwatsen2 #42629: PyObject_Call not behaving as documented https://bugs.python.org/issue42629 opened by maxbachmann #42630: Variable.__init__ raises obscure AttributeError https://bugs.python.org/issue42630 opened by shippo_ #42631: Multiprocessing module hangs on os.read() on Linux https://bugs.python.org/issue42631 opened by to7m #42633: Wave documentation doesn't mention signed/unsigned requirement https://bugs.python.org/issue42633 opened by mattgwwalker #42636: shielded task exception never retrieved when outer task cancel https://bugs.python.org/issue42636 opened by natano #42637: Python macos11.0 release note tkinter problems in news https://bugs.python.org/issue42637 opened by epaine #42641: Deprecate os.popen() function https://bugs.python.org/issue42641 opened by vstinner #42642: logging: add high priority log level for warnings being cleare https://bugs.python.org/issue42642 opened by ncoghlan #42643: http.server does not support HTTP range requests https://bugs.python.org/issue42643 opened by Decorater #42646: Add function that supports "applying" methods https://bugs.python.org/issue42646 opened by wyz23x2 #42647: Unable to use concurrent.futures in atexit hook https://bugs.python.org/issue42647 opened by jd #42648: subprocess: add a helper/parameter to catch exec() OSError exc https://bugs.python.org/issue42648 opened by vstinner #42649: RecursionError when parsing unwieldy expression (regression fr https://bugs.python.org/issue42649 opened by mjo #42650: Can people use dest=argparse.SUPPRESS in custom Action classes https://bugs.python.org/issue42650 opened by bmw #42651: Recursive traceback crashes Python Interpreter https://bugs.python.org/issue42651 opened by xxm #42652: recursive in finally clause cause Python interpreter crash. https://bugs.python.org/issue42652 opened by xxm #42653: Expose ISO-TP Contants for Linux >= 5.10 https://bugs.python.org/issue42653 opened by rumpelsepp #42654: Add folder for python customizations: __sitecustomize__ https://bugs.python.org/issue42654 opened by mariocj89 #42655: Fix subprocess extra_groups gid conversion https://bugs.python.org/issue42655 opened by kulikjak #42657: Python 3.9.1 building process could not use local standard lib https://bugs.python.org/issue42657 opened by xz_sophos #42658: os.path.normcase() is inconsistent with Windows file system https://bugs.python.org/issue42658 opened by sogom #42659: Objects of uname_result Class Cannot be Successfully Pickled https://bugs.python.org/issue42659 opened by CrocoDuck #42660: _zoneinfo.c incorrectly checks bounds of `day` variable in cal https://bugs.python.org/issue42660 opened by p-ganssle #42663: zoneinfo does not support full range of allowed transition hou https://bugs.python.org/issue42663 opened by p-ganssle #42666: getting a class source regresses in Python 3.9 https://bugs.python.org/issue42666 opened by t-vi #42667: shelve module is not thread-safe during accessing different da https://bugs.python.org/issue42667 opened by gardener.willy #42669: "except" documentation still suggests nested tuples are allowe https://bugs.python.org/issue42669 opened by cjwatson #42670: Missing word in itertools.product https://bugs.python.org/issue42670 opened by snoyes #42671: Make the Python finalization more deterministic https://bugs.python.org/issue42671 opened by vstinner #42672: tkinter/__init__.py raises a NameError if NoDefaultRoot() https://bugs.python.org/issue42672 opened by shippo_ #42673: Optimize round_size for rehashing https://bugs.python.org/issue42673 opened by jneb #42674: __init_subclass__ only called for first subclass when class ha https://bugs.python.org/issue42674 opened by ccgahagan #42675: Document changes made in bpo-42195 https://bugs.python.org/issue42675 opened by kj Most recent 15 issues with no replies (15) ========================================== #42674: __init_subclass__ only called for first subclass when class ha https://bugs.python.org/issue42674 #42672: tkinter/__init__.py raises a NameError if NoDefaultRoot() https://bugs.python.org/issue42672 #42669: "except" documentation still suggests nested tuples are allowe https://bugs.python.org/issue42669 #42663: zoneinfo does not support full range of allowed transition hou https://bugs.python.org/issue42663 #42658: os.path.normcase() is inconsistent with Windows file system https://bugs.python.org/issue42658 #42657: Python 3.9.1 building process could not use local standard lib https://bugs.python.org/issue42657 #42655: Fix subprocess extra_groups gid conversion https://bugs.python.org/issue42655 #42653: Expose ISO-TP Contants for Linux >= 5.10 https://bugs.python.org/issue42653 #42650: Can people use dest=argparse.SUPPRESS in custom Action classes https://bugs.python.org/issue42650 #42649: RecursionError when parsing unwieldy expression (regression fr https://bugs.python.org/issue42649 #42647: Unable to use concurrent.futures in atexit hook https://bugs.python.org/issue42647 #42642: logging: add high priority log level for warnings being cleare https://bugs.python.org/issue42642 #42637: Python macos11.0 release note tkinter problems in news https://bugs.python.org/issue42637 #42633: Wave documentation doesn't mention signed/unsigned requirement https://bugs.python.org/issue42633 #42631: Multiprocessing module hangs on os.read() on Linux https://bugs.python.org/issue42631 Most recent 15 issues waiting for review (15) ============================================= #42675: Document changes made in bpo-42195 https://bugs.python.org/issue42675 #42673: Optimize round_size for rehashing https://bugs.python.org/issue42673 #42672: tkinter/__init__.py raises a NameError if NoDefaultRoot() https://bugs.python.org/issue42672 #42671: Make the Python finalization more deterministic https://bugs.python.org/issue42671 #42670: Missing word in itertools.product https://bugs.python.org/issue42670 #42669: "except" documentation still suggests nested tuples are allowe https://bugs.python.org/issue42669 #42663: zoneinfo does not support full range of allowed transition hou https://bugs.python.org/issue42663 #42660: _zoneinfo.c incorrectly checks bounds of `day` variable in cal https://bugs.python.org/issue42660 #42659: Objects of uname_result Class Cannot be Successfully Pickled https://bugs.python.org/issue42659 #42655: Fix subprocess extra_groups gid conversion https://bugs.python.org/issue42655 #42648: subprocess: add a helper/parameter to catch exec() OSError exc https://bugs.python.org/issue42648 #42641: Deprecate os.popen() function https://bugs.python.org/issue42641 #42636: shielded task exception never retrieved when outer task cancel https://bugs.python.org/issue42636 #42630: Variable.__init__ raises obscure AttributeError https://bugs.python.org/issue42630 #42620: documentation on `getsockname()` wrong for AF_INET6 https://bugs.python.org/issue42620 Top 10 most discussed issues (10) ================================= #42630: Variable.__init__ raises obscure AttributeError https://bugs.python.org/issue42630 14 msgs #42641: Deprecate os.popen() function https://bugs.python.org/issue42641 12 msgs #42246: Implement PEP 626 -- Precise line numbers for debugging https://bugs.python.org/issue42246 10 msgs #42115: Caching infrastructure for the evaluation loop: specialised op https://bugs.python.org/issue42115 9 msgs #42529: CPython DLL initialization routine failed from PYC cache file https://bugs.python.org/issue42529 9 msgs #42660: _zoneinfo.c incorrectly checks bounds of `day` variable in cal https://bugs.python.org/issue42660 9 msgs #42648: subprocess: add a helper/parameter to catch exec() OSError exc https://bugs.python.org/issue42648 8 msgs #42671: Make the Python finalization more deterministic https://bugs.python.org/issue42671 7 msgs #31904: Python should support VxWorks RTOS https://bugs.python.org/issue31904 6 msgs #1635741: Py_Finalize() doesn't clear all Python objects at exit https://bugs.python.org/issue1635741 6 msgs Issues closed (63) ================== #14935: PEP 384 Refactoring applied to _csv module https://bugs.python.org/issue14935 closed by petr.viktorin #15650: PEP 3121, 384 refactoring applied to dbm module https://bugs.python.org/issue15650 closed by vstinner #15669: PEP 3121, 384 Refactoring applied to sre module https://bugs.python.org/issue15669 closed by vstinner #15674: PEP 3121, 384 Refactoring applied to _thread module https://bugs.python.org/issue15674 closed by vstinner #15712: PEP 3121, 384 Refactoring applied to unicodedata module https://bugs.python.org/issue15712 closed by vstinner #15725: PyType_FromSpecWithBases bugfix https://bugs.python.org/issue15725 closed by vstinner #15848: PEP 3121, 384 Refactoring applied to xxsubtype module https://bugs.python.org/issue15848 closed by vstinner #18710: Add PyState_GetModuleAttr https://bugs.python.org/issue18710 closed by petr.viktorin #24743: Make _PyTraceback_Add public https://bugs.python.org/issue24743 closed by iritkatriel #30858: Keyword can't be an expression? https://bugs.python.org/issue30858 closed by pablogsal #38137: hashopenssl fails to compile on MacOS https://bugs.python.org/issue38137 closed by christian.heimes #39096: "Format Specification Mini-Language" doc mistake for Decimal https://bugs.python.org/issue39096 closed by mdk #39717: Fix exception causes in tarfile module https://bugs.python.org/issue39717 closed by ethan.furman #40084: HTTPStatus has incomplete dir() listing https://bugs.python.org/issue40084 closed by ethan.furman #40364: asyncio: replace _compute_returncode() with os.waitstatus_to_e https://bugs.python.org/issue40364 closed by vstinner #40505: getpath.c doesn't know about lib64 https://bugs.python.org/issue40505 closed by vstinner #40600: Add option to disallow > 1 instance of an extension module https://bugs.python.org/issue40600 closed by petr.viktorin #40686: Compiler warnings in _zoneinfo.c on Windows build in 64-bit https://bugs.python.org/issue40686 closed by vstinner #40949: test_socket altered the execution environment: threading_clean https://bugs.python.org/issue40949 closed by vstinner #41473: test_gdb fails on AMD64 Fedora Rawhide 3.x [gdb 9.2 bug] https://bugs.python.org/issue41473 closed by vstinner #41478: Empty representation of AssertionError https://bugs.python.org/issue41478 closed by iritkatriel #41804: test_epoll fails test_control_and_wait() randomly on aarch64 R https://bugs.python.org/issue41804 closed by vstinner #41877: Check against misspellings of assert etc. in mock https://bugs.python.org/issue41877 closed by vabr2 #41891: asyncio.wait_for does not wait for task/future to be completed https://bugs.python.org/issue41891 closed by yselivanov #42059: TypedDict(...) as function does not respect "total" when setti https://bugs.python.org/issue42059 closed by brandtbucher #42090: zipfile.Path.joinpath API inconsistent with pathlib.Path.joinp https://bugs.python.org/issue42090 closed by jaraco #42111: Make the xxlimited module an example of best extension module https://bugs.python.org/issue42111 closed by petr.viktorin #42142: test_ttk timeout: FAIL tkinter ttk LabeledScale test_resize, a https://bugs.python.org/issue42142 closed by serhiy.storchaka #42195: Inconsistent __args__ between typing.Callable and collections. https://bugs.python.org/issue42195 closed by gvanrossum #42306: wrong exception handling in case asyncio.shiled usage https://bugs.python.org/issue42306 closed by asvetlov #42328: ttk style.map function incorrectly handles the default state f https://bugs.python.org/issue42328 closed by serhiy.storchaka #42375: subprocess DragonFlyBSD build update https://bugs.python.org/issue42375 closed by vstinner #42415: python3.lib in Python3.9.0 Windows distribution does not conta https://bugs.python.org/issue42415 closed by vstinner #42517: Enum: do not convert private names into members https://bugs.python.org/issue42517 closed by ethan.furman #42519: [C API] Upgrade the C API in extension modules https://bugs.python.org/issue42519 closed by vstinner #42567: Enum: manually call __init_subclass__ after members are added https://bugs.python.org/issue42567 closed by ethan.furman #42575: Suggest to add an LinkedList data structure to python https://bugs.python.org/issue42575 closed by rhettinger #42577: Unhelpful syntax error when expression spans multiple lines https://bugs.python.org/issue42577 closed by gvanrossum #42591: Method Py_FrozenMain missing in libpython3.9 https://bugs.python.org/issue42591 closed by vstinner #42598: Some configure checks rely on implicit function declaration https://bugs.python.org/issue42598 closed by ned.deily #42600: Cancelling tasks waiting for asyncio.Conditions crashes w/ Run https://bugs.python.org/issue42600 closed by yselivanov #42608: Installation failed from source code on Debian ([307/416] test https://bugs.python.org/issue42608 closed by alimp5 #42612: Software Designer https://bugs.python.org/issue42612 closed by josh.r #42613: freeze.py doesn't support sys.platlibdir different than lib no https://bugs.python.org/issue42613 closed by vstinner #42614: Pathlib does not support a Cyrillic character 'й' https://bugs.python.org/issue42614 closed by ronaldoussoren #42615: Redundant jump instructions due to deleted unreachable bytecod https://bugs.python.org/issue42615 closed by OmG #42623: IDLE: Syntax Error showing pointer in wrong location https://bugs.python.org/issue42623 closed by terry.reedy #42625: Segmentation fault of PyState_AddModule() https://bugs.python.org/issue42625 closed by shihai1991 #42632: Reassgining ZeroDivisionError will lead to bug in Except claus https://bugs.python.org/issue42632 closed by eric.smith #42634: Incorrect line number in bytecode for try-except-finally https://bugs.python.org/issue42634 closed by Mark.Shannon #42635: Incorrect line number in bytecode for nested loops https://bugs.python.org/issue42635 closed by Mark.Shannon #42638: IDLE: Context lines not working correctly https://bugs.python.org/issue42638 closed by terry.reedy #42639: Make atexit state per interpreter https://bugs.python.org/issue42639 closed by vstinner #42640: tkinter throws exception when key is pressed https://bugs.python.org/issue42640 closed by ned.deily #42644: logging.disable('WARN') breaks AsyncIO https://bugs.python.org/issue42644 closed by asvetlov #42645: break/continue or return in finally block occurs twice in trac https://bugs.python.org/issue42645 closed by Mark.Shannon #42656: prime numbers loop issue https://bugs.python.org/issue42656 closed by steven.daprano #42661: Hashlib Bug https://bugs.python.org/issue42661 closed by zach.ware #42662: Propose: Data model explict about __annotations__ key ordering https://bugs.python.org/issue42662 closed by pbryan #42664: strptime(%c) fails to parse the output of strftime(%c) https://bugs.python.org/issue42664 closed by eric.smith #42665: Should PyLong_AsLongAndOverflow raise exception on overflow? https://bugs.python.org/issue42665 closed by mark.dickinson #42668: re.escape does not correctly escape newlines https://bugs.python.org/issue42668 closed by serhiy.storchaka #1571878: Improvements to socket module exceptions https://bugs.python.org/issue1571878 closed by iritkatriel

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Proposal: Interpreter customization at Python startup time
by Mario Corchero Dec. 18, 2020

Dec. 18, 2020

Hi All, I posted a proposal in Python ideas that I think deserves to be discussed among core devs and the community. In short, it aims at providing a way of customizing Python startup in a similar way of what sitecustomize provides today. Link to the discourse thread: https://discuss.python.org/t/add-folder-for-python-customizations-sitecusto… Link to the proposal in a pepish format: https://gist.github.com/mariocj89/36daffd1e157b93e5c697bbadcb05806 I'd appreciate feedback in the discourse thread if possible. If this looks reasonable, Pablo Galindo would be my sponsor for submitting the proposal as a PEP. Thanks a lot and happy holidays :)! Mario

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Advice / RTFM needed for tool setup to participate in python development from a Windows host
by pjfarley3＠earthlink.net Dec. 17, 2020

Dec. 17, 2020

Hello, I hope this is the correct place to ask this question. I have a desire to participate in python development in a particular area from my Windows host machine, but I am not finding any concise listing of the tool setup needed to fully participate, nor any detailed guidance on how to proceed when underlying code debugging is necessary. I do know that some version of the MS VS20xx suite is necessary to begin. My initial attempts using the VS2019 Community Edition have been less than successful when it comes to debugging an underlying C library component when the starting program is python because I have not figured out how to use the VS2019 environment to do that. So I would appreciate any RTFM / URL that can guide me in starting to participate, especially for guidance on debugging procedures for underlying C components when the initial program is a python script. I have read most of the "Python Developers Guide" material, but there is not any Window-specific tooling information that I have seen there yet. What other tooling do I need besides a VS20xx environment? I do have good experience in C programming, but not much in using VS20xx IDE's. TIA for your gentle guidance in curing my ignorance. Peter

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