Mailman 3 June 2018 - Python-Dev

Re: [Python-Dev] Policy on refactoring/clean up
by Jeroen Demeyer 26 Jun '18

26 Jun '18

On 2018-06-26 13:54, INADA Naoki wrote: > Real need is important than my preference. If it is needed PEP 580, I'm OK. Of course it's not needed. I never claimed that it was. I think it's *nice to have* right now and slightly more *nice to have* when changes/additions are made to call.c in the future.

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Re: [Python-Dev] Policy on refactoring/clean up
by Jeroen Demeyer 26 Jun '18

26 Jun '18

On 2018-06-26 13:54, INADA Naoki wrote: > No, YAGNI is posted by someone and they removed their comment. Sorry for that, I misunderstood the email that GitHub sent me.

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3.7.0 / 3.6.6 Update: all systems go for final releases!
by Ned Deily 26 Jun '18

26 Jun '18

A quick update: after many months we are at the finish line. We are on track (mixing metaphors) to release 3.7.0 (and 3.6.6) this week on 2018-06-27. Since 3.7.0rc1 shipped 2 weeks ago, I am aware of only two noteworthy regressions that have been identified and now fixed. Since the issues for both have the potential to impact some (but small) subsets of 3.7.0 users and the fixes for both are straightforward and appear to be low-risk, I am planning to cherry-pick the fixes for them into 3.7.0 final without either another release candidate cycle or waiting for 3.7.1. There may be some doc fixes that get cherry-picked as well. At the moment, there are no plans for any bug cherry-picks for 3.6.6 final. As you know, a new feature release is a big deal and something for all of us to be proud of. A new feature release also has various, mostly minor, impacts to lots of different parts of our development infrastructure: to multiple branches of the cpython repo, to documentation builds, to different parts of the python.org web site, etc. You will start to see some of the changes roll out over the next 24 to 36 hours and it may take some time until everything is in place. So please be patient until the official release announcement goes out before reporting release-related issues. Also be advised that over the same period, there may be a few brief periods where commit access to various cpython branches is blocked in order to do the necessary release engineering. If you run into this, for example when trying to merge a PR, please try again in a few hours. Thanks and more later! https://bugs.python.org/issue33851 https://bugs.python.org/issue33932 -- Ned Deily nad(a)python.org -- []

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PEP 580 (C call protocol) draft implementation
by Jeroen Demeyer 25 Jun '18

25 Jun '18

Hello all, I have a first draft implementation of PEP 580 (introducing the C call protocol): https://github.com/jdemeyer/cpython/tree/pep580 Almost all tests pass, only test_gdb and test_pydoc fail for me. I still have to fix those. Jeroen.

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Python3.7 backwards incompatible
by Rokker Ruslan 24 Jun '18

24 Jun '18

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Re: [Python-Dev] About [].append == [].append
by Jeroen Demeyer 23 Jun '18

23 Jun '18

On 2018-06-23 03:50, Steven D'Aprano wrote: > I think it is more important that builtin methods and Python methods > behave the same. +1 This inconsistency is the *real* problem here. It's one little extra complication to merging those classes (which was proposed in PEP 575, 576 and 579).

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About [].append == [].append
by Jeroen Demeyer 23 Jun '18

23 Jun '18

Currently, we have: >>> [].append == [].append False However, with a Python class: >>> class List(list): ... def append(self, x): super().append(x) >>> List().append == List().append True In the former case, __self__ is compared using "is" and in the latter case, it is compared using "==". I think that comparing using "==" is the right thing to do because "is" is really an implementation detail. Consider >>> (10000).bit_length == (10000).bit_length True >>> (10000).bit_length == (10000+0).bit_length False I guess that's also the reason why CPython internally rarely uses "is" for comparisons. See also: - https://bugs.python.org/issue1617161 - https://bugs.python.org/issue33925 Any opinions? Jeroen.

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PySequence_Check but no __len__
by Christian Tismer 23 Jun '18

23 Jun '18

Hi friends, there is a case in the Python API where I am not sure what to do: If an object defines __getitem__() only but no __len__(), then PySequence_Check() already is true and does not care. So if I define no __len__, it simply fails. Is this intended? I was mislead and thought this was the unlimited case, but it seems still to be true that sequences are always finite. Can someone please enlighten me? -- Christian Tismer-Sperling :^) tismer(a)stackless.com Software Consulting : http://www.stackless.com/ Karl-Liebknecht-Str. 121 : http://pyside.org 14482 Potsdam : GPG key -> 0xE7301150FB7BEE0E phone +49 173 24 18 776 fax +49 (30) 700143-0023

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Summary of Python tracker Issues
by Python tracker 22 Jun '18

22 Jun '18

ACTIVITY SUMMARY (2018-06-15 - 2018-06-22) 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 6700 ( +9) closed 38994 (+64) total 45694 (+73) Open issues with patches: 2651 Issues opened (49) ================== #23660: Turtle left/right inverted when using different coordinates or https://bugs.python.org/issue23660 reopened by willingc #32500: PySequence_Length() raises TypeError on dict type https://bugs.python.org/issue32500 reopened by serhiy.storchaka #33871: Possible integer overflow in iov_setup() https://bugs.python.org/issue33871 opened by serhiy.storchaka #33873: False positives when running leak tests with -R 1:1 https://bugs.python.org/issue33873 opened by pablogsal #33875: Allow dynamic password evaluation in pypirc configuration file https://bugs.python.org/issue33875 opened by jperras #33877: doc Mention Windows along UNIX for script running instructions https://bugs.python.org/issue33877 opened by adelfino #33878: Doc: Assignment statement to tuple or list: case missing. https://bugs.python.org/issue33878 opened by mdk #33880: namedtuple should use NFKD to find duplicate members https://bugs.python.org/issue33880 opened by John Cooke #33881: dataclasses should use NFKC to find duplicate members https://bugs.python.org/issue33881 opened by eric.smith #33882: doc Mention breakpoint() in debugger-related FAQ https://bugs.python.org/issue33882 opened by adelfino #33883: doc Mention mypy, pytype and PyAnnotate in FAQ https://bugs.python.org/issue33883 opened by adelfino #33884: [multiprocessing] Multiprocessing in spawn mode doesn't work w https://bugs.python.org/issue33884 opened by Yoni Rozenshein #33885: doc Replace "hook function" with "callable" in urllib.request. https://bugs.python.org/issue33885 opened by adelfino #33886: SSL on aiomysql hangs on reconnection https://bugs.python.org/issue33886 opened by andr04 #33887: doc Add TOC in Design and History FAQ https://bugs.python.org/issue33887 opened by adelfino #33888: Use CPython instead of Python when talking about implementatio https://bugs.python.org/issue33888 opened by adelfino #33894: tempfile.tempdir cannot be unset https://bugs.python.org/issue33894 opened by philiprowlands #33895: LoadLibraryExW called with GIL held can cause deadlock https://bugs.python.org/issue33895 opened by Tony Roberts #33896: Document what components make up the filecmp.cmp os.stat signa https://bugs.python.org/issue33896 opened by Dean Morin #33897: Add a restart option to logging.basicConfig() https://bugs.python.org/issue33897 opened by rhettinger #33898: pathlib issues with Windows device paths https://bugs.python.org/issue33898 opened by eryksun #33899: Tokenize module does not mirror "end-of-input" is newline beha https://bugs.python.org/issue33899 opened by ammar2 #33909: PyObject_CallFinalizerFromDealloc is not referenced in any doc https://bugs.python.org/issue33909 opened by Eric.Wieser #33911: [EASY] test_docxmlrpc fails when run with -Werror https://bugs.python.org/issue33911 opened by vstinner #33913: test_multiprocessing_spawn random failures on x86 Windows7 3.6 https://bugs.python.org/issue33913 opened by vstinner #33914: test_gdb fails for Python 2.7.15 https://bugs.python.org/issue33914 opened by vibhutisawant #33916: test_lzma: test_refleaks_in_decompressor___init__() leaks 100 https://bugs.python.org/issue33916 opened by vstinner #33918: Hooking into pause/resume of iterators/coroutines https://bugs.python.org/issue33918 opened by Liran Nuna #33919: Expose _PyCoreConfig structure to Python https://bugs.python.org/issue33919 opened by barry #33920: test_asyncio: test_run_coroutine_threadsafe_with_timeout() fai https://bugs.python.org/issue33920 opened by vstinner #33921: Explain that '' can be used to bind to all interfaces for the https://bugs.python.org/issue33921 opened by John Hagen #33923: py.ini cannot set 32/64bits for specific version https://bugs.python.org/issue33923 opened by mrh1997 #33926: test_gdb is skipped in builds since gdb is not installed as pa https://bugs.python.org/issue33926 opened by xtreak #33927: Allow json.tool to have identical infile and outfile https://bugs.python.org/issue33927 opened by kuhlmann #33929: test_multiprocessing_spawn: WithProcessesTestProcess.test_many https://bugs.python.org/issue33929 opened by vstinner #33930: Segfault with deep recursion into object().__dir__ https://bugs.python.org/issue33930 opened by a-j-buxton #33931: Building 2.7 on Windows with PC\VS9.0 is broken https://bugs.python.org/issue33931 opened by anselm.kruis #33932: Calling Py_Initialize() twice now triggers a fatal error (Pyth https://bugs.python.org/issue33932 opened by vstinner #33933: Error message says dict has no len https://bugs.python.org/issue33933 opened by veky #33934: locale.getlocale() seems wrong when the locale is yet unset (p https://bugs.python.org/issue33934 opened by zezollo #33935: shutil.copyfile throws incorrect SameFileError on Google Drive https://bugs.python.org/issue33935 opened by Deniz Bozyigit #33936: OPENSSL_VERSION_1_1 never defined in _hashopenssl.c https://bugs.python.org/issue33936 opened by laomaiweng #33937: [3.6] test_socket: testSendmsgTimeout() failed on Travis CI https://bugs.python.org/issue33937 opened by vstinner #33938: Cross compilation fail for ARM https://bugs.python.org/issue33938 opened by n0s69z #33939: Raise OverflowError in __length_hint__ for consistently infini https://bugs.python.org/issue33939 opened by ncoghlan #33940: datetime.strptime have no directive to convert date values wit https://bugs.python.org/issue33940 opened by Raghunath Lingutla #33941: datetime.strptime not able to recognize invalid date formats https://bugs.python.org/issue33941 opened by Raghunath Lingutla #33942: IDLE crash when typing opening bracket https://bugs.python.org/issue33942 opened by Japsert #33943: doc Add references to logging.basicConfig https://bugs.python.org/issue33943 opened by adelfino Most recent 15 issues with no replies (15) ========================================== #33943: doc Add references to logging.basicConfig https://bugs.python.org/issue33943 #33942: IDLE crash when typing opening bracket https://bugs.python.org/issue33942 #33941: datetime.strptime not able to recognize invalid date formats https://bugs.python.org/issue33941 #33940: datetime.strptime have no directive to convert date values wit https://bugs.python.org/issue33940 #33937: [3.6] test_socket: testSendmsgTimeout() failed on Travis CI https://bugs.python.org/issue33937 #33936: OPENSSL_VERSION_1_1 never defined in _hashopenssl.c https://bugs.python.org/issue33936 #33934: locale.getlocale() seems wrong when the locale is yet unset (p https://bugs.python.org/issue33934 #33933: Error message says dict has no len https://bugs.python.org/issue33933 #33930: Segfault with deep recursion into object().__dir__ https://bugs.python.org/issue33930 #33929: test_multiprocessing_spawn: WithProcessesTestProcess.test_many https://bugs.python.org/issue33929 #33923: py.ini cannot set 32/64bits for specific version https://bugs.python.org/issue33923 #33920: test_asyncio: test_run_coroutine_threadsafe_with_timeout() fai https://bugs.python.org/issue33920 #33913: test_multiprocessing_spawn random failures on x86 Windows7 3.6 https://bugs.python.org/issue33913 #33899: Tokenize module does not mirror "end-of-input" is newline beha https://bugs.python.org/issue33899 #33898: pathlib issues with Windows device paths https://bugs.python.org/issue33898 Most recent 15 issues waiting for review (15) ============================================= #33943: doc Add references to logging.basicConfig https://bugs.python.org/issue33943 #33936: OPENSSL_VERSION_1_1 never defined in _hashopenssl.c https://bugs.python.org/issue33936 #33932: Calling Py_Initialize() twice now triggers a fatal error (Pyth https://bugs.python.org/issue33932 #33931: Building 2.7 on Windows with PC\VS9.0 is broken https://bugs.python.org/issue33931 #33916: test_lzma: test_refleaks_in_decompressor___init__() leaks 100 https://bugs.python.org/issue33916 #33911: [EASY] test_docxmlrpc fails when run with -Werror https://bugs.python.org/issue33911 #33895: LoadLibraryExW called with GIL held can cause deadlock https://bugs.python.org/issue33895 #33894: tempfile.tempdir cannot be unset https://bugs.python.org/issue33894 #33888: Use CPython instead of Python when talking about implementatio https://bugs.python.org/issue33888 #33887: doc Add TOC in Design and History FAQ https://bugs.python.org/issue33887 #33885: doc Replace "hook function" with "callable" in urllib.request. https://bugs.python.org/issue33885 #33883: doc Mention mypy, pytype and PyAnnotate in FAQ https://bugs.python.org/issue33883 #33882: doc Mention breakpoint() in debugger-related FAQ https://bugs.python.org/issue33882 #33878: Doc: Assignment statement to tuple or list: case missing. https://bugs.python.org/issue33878 #33877: doc Mention Windows along UNIX for script running instructions https://bugs.python.org/issue33877 Top 10 most discussed issues (10) ================================= #32962: test_gdb fails in debug build with `-mcet -fcf-protection -O0` https://bugs.python.org/issue32962 14 msgs #33865: [EASY] Missing code page aliases: "unknown encoding: 874" https://bugs.python.org/issue33865 14 msgs #33832: doc Add "magic method" entry to Glossary https://bugs.python.org/issue33832 10 msgs #33839: IDLE tooltips.py: refactor and add docstrings and tests https://bugs.python.org/issue33839 10 msgs #33932: Calling Py_Initialize() twice now triggers a fatal error (Pyth https://bugs.python.org/issue33932 9 msgs #29750: smtplib doesn't handle unicode passwords https://bugs.python.org/issue29750 8 msgs #33873: False positives when running leak tests with -R 1:1 https://bugs.python.org/issue33873 8 msgs #33895: LoadLibraryExW called with GIL held can cause deadlock https://bugs.python.org/issue33895 7 msgs #33826: enable discovery of class source code in IPython interactively https://bugs.python.org/issue33826 6 msgs #33939: Raise OverflowError in __length_hint__ for consistently infini https://bugs.python.org/issue33939 6 msgs Issues closed (61) ================== #10652: test___all_ + test_tcl fails (Windows installed binary) https://bugs.python.org/issue10652 closed by zach.ware #11697: Unsigned type in mmap_move_method https://bugs.python.org/issue11697 closed by berker.peksag #21941: Clean up turtle TPen class https://bugs.python.org/issue21941 closed by willingc #22571: Remove import * recommendations and examples in doc? https://bugs.python.org/issue22571 closed by terry.reedy #23922: Refactor icon setting to a separate function for Turtle https://bugs.python.org/issue23922 closed by terry.reedy #24978: Contributing to Documentation. Translation to Russian. https://bugs.python.org/issue24978 closed by terry.reedy #24990: Foreign language support in turtle module https://bugs.python.org/issue24990 closed by terry.reedy #26917: unicodedata.normalize(): bug in Hangul Composition https://bugs.python.org/issue26917 closed by benjamin.peterson #28710: Sphinx incompatible markup in the standard library docstrings https://bugs.python.org/issue28710 closed by rhettinger #30345: test_gdb fails on Python 3.6 when built with LTO+PGO https://bugs.python.org/issue30345 closed by vstinner #31725: Turtle/tkinter: NameError crashes ipython with "Tcl_AsyncDelet https://bugs.python.org/issue31725 closed by willingc #31966: [EASY C][Windows] print('hello\n', end='', flush=True) raises https://bugs.python.org/issue31966 closed by serhiy.storchaka #32555: Encoding issues with the locale encoding https://bugs.python.org/issue32555 closed by vstinner #33174: compiler error building the _sha3 module with Intel 2018 compi https://bugs.python.org/issue33174 closed by ned.deily #33365: http/client.py does not print correct headers in debug https://bugs.python.org/issue33365 closed by serhiy.storchaka #33499: Environment variable to set alternate location for pycache tre https://bugs.python.org/issue33499 closed by ncoghlan #33571: Add triple quotes to list of delimiters that trigger '...' pro https://bugs.python.org/issue33571 closed by Mariatta #33630: test_posix: TestPosixSpawn fails on PPC64 Fedora 3.x https://bugs.python.org/issue33630 closed by vstinner #33663: Web.py wsgiserver3.py raises TypeError when CSS file is not fo https://bugs.python.org/issue33663 closed by steve.dower #33733: Add utilities to get/set pipe and socket buffer sizes? https://bugs.python.org/issue33733 closed by vstinner #33742: Unsafe memory access in PyStructSequence_InitType https://bugs.python.org/issue33742 closed by xiang.zhang #33746: testRegisterResult in test_unittest fails in verbose mode https://bugs.python.org/issue33746 closed by vstinner #33824: Settign LANG=C modifies the --version behavior https://bugs.python.org/issue33824 closed by vstinner #33836: [Good first-time issue] Recommend keyword-only param for memoi https://bugs.python.org/issue33836 closed by Mariatta #33841: lock not released in threading.Condition https://bugs.python.org/issue33841 closed by pitrou #33843: Remove deprecated stuff in cgi module https://bugs.python.org/issue33843 closed by inada.naoki #33846: Misleading error message in urllib.parse.unquote https://bugs.python.org/issue33846 closed by r.david.murray #33847: doc: Add '@' operator entry to index https://bugs.python.org/issue33847 closed by terry.reedy #33852: doc Remove parentheses from sequence subscription description https://bugs.python.org/issue33852 closed by terry.reedy #33854: doc Add PEP title in seealso of Built-in Types https://bugs.python.org/issue33854 closed by terry.reedy #33855: IDLE: Minimally test every non-startup module. https://bugs.python.org/issue33855 closed by terry.reedy #33856: IDLE: "help" is missing from the sign-on message https://bugs.python.org/issue33856 closed by zach.ware #33858: A typo in multiprocessing documentation https://bugs.python.org/issue33858 closed by pitrou #33861: Minor improvements of tests for os.path. https://bugs.python.org/issue33861 closed by serhiy.storchaka #33866: Stop using OrderedDict in enum https://bugs.python.org/issue33866 closed by inada.naoki #33872: doc Add list access time to list definition https://bugs.python.org/issue33872 closed by rhettinger #33874: dictviews set operations do not follow pattern of set or froze https://bugs.python.org/issue33874 closed by rhettinger #33876: doc Mention relevant pythonesque implementations https://bugs.python.org/issue33876 closed by Mariatta #33879: Item assignment in tuple mutates list despite throwing error https://bugs.python.org/issue33879 closed by r.david.murray #33889: doc Mention Python on-line shell in Tutorial https://bugs.python.org/issue33889 closed by Mariatta #33890: Pathlib does not compare Windows and MinGW paths as equal https://bugs.python.org/issue33890 closed by r.david.murray #33891: ntpath join doesnt check whether path variable None or not https://bugs.python.org/issue33891 closed by xiang.zhang #33892: doc Use gender neutral words https://bugs.python.org/issue33892 closed by inada.naoki #33893: Linux terminal shortcuts support in python shell https://bugs.python.org/issue33893 closed by terry.reedy #33900: collections.counter update method without argument gives misle https://bugs.python.org/issue33900 closed by xtreak #33901: test_dbm_gnu.test_reorganize() failed on x86-64 High Sierra 3. https://bugs.python.org/issue33901 closed by vstinner #33902: entry_points/console_scripts is too slow https://bugs.python.org/issue33902 closed by barry #33903: Can't use lib2to3 with embeddable zip file https://bugs.python.org/issue33903 closed by steve.dower #33904: IDLE: In rstrip, rename class RstripExtension as Rstrip https://bugs.python.org/issue33904 closed by terry.reedy #33905: IDLE: Test stackbrowser.Stackbrowser https://bugs.python.org/issue33905 closed by terry.reedy #33906: IDLE: rename windows.py as window.py https://bugs.python.org/issue33906 closed by terry.reedy #33907: IDLE: Rename calltips and CallTips as calltip and Calltip. https://bugs.python.org/issue33907 closed by terry.reedy #33908: remove unecessary variable assignments https://bugs.python.org/issue33908 closed by xiang.zhang #33910: update random.Random 's parameter to have a proper name. https://bugs.python.org/issue33910 closed by rhettinger #33912: [EASY] test_warnings: test_exec_filename() fails when run with https://bugs.python.org/issue33912 closed by vstinner #33915: VSTS: Initialize phase: failed https://bugs.python.org/issue33915 closed by steve.dower #33917: Fix and document idlelib/idle_test/template.py https://bugs.python.org/issue33917 closed by terry.reedy #33922: Enforce 64bit Python by Launcher https://bugs.python.org/issue33922 closed by eryksun #33924: In IDLE menudefs, change 'windows' to 'window' https://bugs.python.org/issue33924 closed by terry.reedy #33925: builtin_function_or_method compares __self__ by identity inste https://bugs.python.org/issue33925 closed by serhiy.storchaka #33928: _Py_DecodeUTF8Ex() creates surrogate pairs on Windows https://bugs.python.org/issue33928 closed by vstinner

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2018 Python Language Summit coverage, last part
by Jake Edge 21 Jun '18

21 Jun '18

Hola python-dev, Here are the last three sessions from the Python Language Summit that I wrote up. Unfortunately, I did not write up the Lightning Talks, which were numerous and interesting, mostly because of time pressure. As usual, I am posting SubscriberLinks for articles that are still behind the paywall. LWN subscribers can always see our content right away; one week after they are published in a weekly edition, they become freely available for everyone. SubscriberLinks are a way around the paywall. Please feel free to share the SubscriberLinks I am posting here. The starting point is here: https://lwn.net/Articles/754152/ That is an overview article with links to the individual articles. Here are the articles since my post on Monday (which is here: https://lwn.net/ml/python-dev/20180618112251.5f936617%40gallinule/ ) PEP 572 and decision-making in Python https://lwn.net/SubscriberLink/757713/2118c7722d957926/ Getting along in the Python community https://lwn.net/SubscriberLink/757714/8dadb362ff7d5673/ Mentoring and diversity for Python https://lwn.net/SubscriberLink/757715/d6cf8c9f72e4bdd8/ enjoy! jake -- Jake Edge - LWN - jake(a)lwn.net - https://lwn.net

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