[issue43179] Remove 31/32-bit s390 Linux support (s390-linux-gnu triplet)

David Edelsohn added the comment: Victor: https://en.wikipedia.org/wiki/31-bit_computing :-) -- ___ Python tracker <https://bugs.python.org/issue43179> ___ ___

[issue43179] Remove 31/32-bit s390 Linux support (s390-linux-gnu triplet)

David Edelsohn added the comment: I am not aware of significant use of 31 bit mode. But I don't see the benefit of annoying and discouraging users who want to experiment with Python and with Linux on Z in 31 bit mode. Yes, maintenance theoretically is a burden, but there have been

[issue43179] Remove 31/32-bit s390 Linux support (s390-linux-gnu triplet)

David Edelsohn added the comment: gcc -dM -E - < /dev/null -- Added file: https://bugs.python.org/file49818/gcc-s390x.txt ___ Python tracker <https://bugs.python.org/issu

[issue43179] Remove 31/32-bit s390 Linux support (s390-linux-gnu triplet)

David Edelsohn added the comment: gcc -m31 -dM -E - < /dev/null -- Added file: https://bugs.python.org/file49817/gcc-s390.txt ___ Python tracker <https://bugs.python.org/issu

[issue43179] Remove 31/32-bit s390 Linux support (s390-linux-gnu triplet)

David Edelsohn added the comment: I understand the issue is s390, not s390x. I am offering that there already is an s390x worker, so would it be sufficient to build and test Python in 31 bit mode on that worker as opposed to installing a complete s390 Debian system

[issue43179] Remove 31/32-bit s390 Linux support (s390-linux-gnu triplet)

David Edelsohn added the comment: I already am running a Debian s390x buildbot for Python. Someone can adjust the rules for the buildbot to include a 31-bit builder. The Debian buildbot has relatively few builder variants relative to the other s390x targets

[issue43179] Remove 32-bit s390 Linux support (s390-linux-gnu triplet)

David Edelsohn added the comment: This has nothing to do with AIX. This conversation should include Charalampos Stratakis, but I don't see him as an option for Nosy. It probably is easy to add a s390 31-bit build to one of the buildbots. -- nosy: -aixto...@gmail.com

[issue43090] parseaddr (from email.utils) returns invalid input string instead of ('', '')

R. David Murray added the comment: The return value is correct. Interpreted as an email address, 'randomstring' is a local mailbox. -- resolution: -> not a bug stage: -> resolved status: open -> closed ___ Python tracke

[issue43061] subprocess: feature request: Get only the stdout of the last shell command

R. David Murray added the comment: This has nothing to do with python other than the fact that you are using it to capture stdout. You have to figure out how to get the output you want to be what shows up on stdout, python has no knowledge of what commands you put in your shell script

[issue42896] Solaris 11.4 crle output not handled correctly

Change by David Murphy : -- pull_requests: +23080 stage: -> patch review pull_request: https://github.com/python/cpython/pull/24226 ___ Python tracker <https://bugs.python.org/issu

[issue42960] resources module, FreeBSD update adding RLIMIT_KQUEUES constant

Change by David CARLIER : -- components: FreeBSD nosy: devnexen, koobs priority: normal pull_requests: 23073 severity: normal status: open title: resources module, FreeBSD update adding RLIMIT_KQUEUES constant versions: Python 3.10 ___ Python

[issue42643] http.server does not support HTTP range requests

Change by David Bordeynik : -- keywords: +patch nosy: +DavidBord nosy_count: 2.0 -> 3.0 pull_requests: +23051 stage: -> patch review pull_request: https://github.com/python/cpython/pull/24228 ___ Python tracker <https://bugs.python.org/i

[issue29842] Make Executor.map work with infinite/large inputs correctly

David Lukeš added the comment: Any updates on this? Making Executor.map lazier would indeed be more consistent and very useful, it would be a shame if the PR went to waste :) It's a feature I keep wishing for in comparison with the older and process-only multiprocessing API. And eventually

[issue42896] Solaris 11.4 crle output not handled correctly

David Murphy added the comment: Forgive any process/workflow errors first time, submitting to Python -- ___ Python tracker <https://bugs.python.org/issue42

[issue42896] Solaris 11.4 crle output not handled correctly

New submission from David Murphy : >From porting Python 3.7.8 to Solaris 11.4 (base open version) found that the >handling of crle output has changed between Solaris 11.3 and 11.4 and >accommodation has not been made for the change. For example: Solaris 11.3 root@sol11:~/sol_build/p

[issue34451] docs: tutorial/introduction doesn't mention toggle of prompts

David Justo added the comment: Hi folks! I'm interested in contributing to this issue, but I'm unsure about the context. Can `>>>>` prompts be toggled on-and-off in the docs? I do not see that option. I read that this is possible in javascript-enabled versions of the site

[issue30044] shutil.copystat should (allow to) copy ownership, and other attributes

David Justo added the comment: Hi folks, I'd be interested in contributing to this issue, since it seems "easy" enough, but I'm unsure that consensus was reached about the right solution. >From what I gathered from Giampaolo's comments, we have solutions that should >work fo

[issue12806] argparse: Hybrid help text formatter

David Steele added the comment: For those looking for a solution now, see https://pypi.org/project/argparse-formatter/ -- ___ Python tracker <https://bugs.python.org/issue12

[issue7946] Convoy effect with I/O bound threads and New GIL

Change by David Beazley : -- stage: -> resolved status: open -> closed ___ Python tracker <https://bugs.python.org/issue7946> ___ ___ Python-bugs-list

[issue16894] Function attribute access doesn't invoke methods in dict subclasses

Change by David Beazley : -- stage: -> resolved status: open -> closed ___ Python tracker <https://bugs.python.org/issue16894> ___ ___ Python-bugs-list

[issue24844] Python 3.5rc1 compilation error with Apple clang 4.2 included with Xcode 4

Change by David Beazley : -- stage: -> resolved status: open -> closed ___ Python tracker <https://bugs.python.org/issue24844> ___ ___ Python-bugs-list

[issue32810] Expose ags_gen and agt_gen in asynchronous generators

Change by David Beazley : -- stage: patch review -> resolved status: open -> closed ___ Python tracker <https://bugs.python.org/issue32810> ___ ___ Pyth

[issue27436] Strange code in selectors.KqueueSelector

Change by David Beazley : -- stage: -> resolved status: open -> closed ___ Python tracker <https://bugs.python.org/issue27436> ___ ___ Python-bugs-list

[issue16132] ctypes incorrectly encodes .format attribute of memory views

Change by David Beazley : -- stage: -> resolved status: open -> closed ___ Python tracker <https://bugs.python.org/issue16132> ___ ___ Python-bugs-list

[issue42777] WindowsPath does not implement is_mount but ntpath implements and offers a ismount method

New submission from David : pathlib.WindowsPath[0] does not implement is_mount but ntpath implements and offers a ismount[1] method. Perhaps WindowsPath is_mount can make use of ntpath.ismount ? [0] https://github.com/python/cpython/blob/master/Lib/pathlib.py#L1578 [1] https://github.com

[issue42433] mailbox.mbox fails on non ASCII characters

R. David Murray added the comment: After thinking about it some more, I think given that when there is no non-ascii mbox will happily treat *anything* as valid on the "From " line, that we should consider blowing up on non-ascii t

[issue42484] get_obs_local_part fails to handle empty local part

R. David Murray added the comment: Yep, you've found another in a category of bugs that have shown up in the parser: places where there is a missing check for there being any value at all before checking character [0]. In this case, the fix should be to add if not obs_local_part

[issue41701] Buildbot web page: connection lost after 1 minute, then display "Connection restored" popup

David Bolen added the comment: I was wondering if there was any update on whether or not this new behavior can be corrected? I was attempting to review a buildbot failure today and it's actually pretty tough to "race the refresh" when trying to review the build step

[issue42328] ttk style.map function incorrectly handles the default state for element options.

David Bolen added the comment: This change to the 3.8 branch appears to be consistently failing on the Windows 7 buildbot (first failing build at https://buildbot.python.org/all/#/builders/270/builds/126). It's all failures in the new test_configure_custom_copy and test_map_custom_copy

[issue42433] mailbox.mbox fails on non ASCII characters

R. David Murray added the comment: The problem with that archive is that it is not in proper mbox format. It contains the following line (5689): From here I was hoping to run something like “dbus-send –system –dest=Test.Me –print-reply /Japan Japan.Reset.Test string:”Hello”” You

[issue42434] Library json, file json/encoder.py: Function floatstr should be a class-level function.

New submission from David Salač : The logic as it is implemented now does not allow to user to override floatstr function. That makes things enormously inconvenient for people who need any different of behaviour (for example return string values defining Infinity, NaN or -Infinity

[issue42415] python3.lib in Python3.9.0 Windows distribution does not contain PyObject_CallNoArgs symbol

New submission from David Hewitt : I'm unsure if this is a packaging error or a misunderstanding by me. I'm trying to link a binary on windows with Py_LIMITED_API set. According to https://www.python.org/dev/peps/pep-0384/#linkage I _think_ I'm supposed to be linking against python3.lib

[issue42323] [AIX] test_math: test_nextafter(float('nan'), 1.0) does not return a NaN on AIX

David Edelsohn added the comment: I believe that Michael was trying to probe under what circumstances the failure appears. But, not GCC 4.7 is not relevant. -- ___ Python tracker <https://bugs.python.org/issue42

[issue42375] subprocess DragonFlyBSD build update

Change by David CARLIER : -- components: Extension Modules nosy: devnexen priority: normal pull_requests: 22211 severity: normal status: open title: subprocess DragonFlyBSD build update type: enhancement versions: Python 3.10 ___ Python tracker

[issue42323] [AIX] test_math: test_nextafter(float('nan'), 1.0) does not return a NaN on AIX

David Edelsohn added the comment: I investigated another problem with nextafter() in 2015 and opened an internal IBM AIX PMR. At the time it was not using decimal float code. The earlier problem was the handling of -0.0. At the time, the code was hand-written assembly language that did

[issue42087] Remove pre-AIX 6.1 dead code paths

David Edelsohn added the comment: I think that it is reasonable to drop support for AIX 5.3. -- ___ Python tracker <https://bugs.python.org/issue42087> ___ ___

[issue39168] Generic type subscription is a huge toll on Python performance

David Lord added the comment: I'm using Arch Linux. After your reply I tried again and now I'm seeing the same result as you, negligible difference from inheriting `Generic` on Python 3.9. I can't explain it, I ran the timings repeatedly before I posted here, but I guess it was a weird

[issue39168] Generic type subscription is a huge toll on Python performance

David Lord added the comment: Is this performance issue supposed to be fixed in 3.9? I'm still observing severe slowdown by inheriting from `Generic[T]`. I'm currently adding typing to Werkzeug, where we define many custom data structures such as `MultiDict`. It would be ideal

[issue42323] [AIX] test_math: test_nextafter(float('nan'), 1.0) does not return a NaN on AIX

David Edelsohn added the comment: nextafter is a known problem on AIX. I believe that it is being addressed in newer releases of AIX. Michael and I are helping the IBM AIX Open Source team to increase their attention on Python, but things only move so fast

[issue42179] Clarify chaining exceptions in tutorial/errors.rst

Change by David Martinez : Added file: https://bugs.python.org/file49575/Cellular-Z 20200909 14:25:47 SLOT1.CSV ___ Python tracker <https://bugs.python.org/issue42

[issue42247] unittest hides traceback frames in chained exceptions

New submission from David Mandelberg : The traceback in the output of the attached test (see below) doesn't include line 5, which is where the original exception is raised. I think this is because https://github.com/python/cpython/blob/b9ee4af4c643a323779fd7076e80b29d611f2709/Lib/unittest

[issue42232] mmap module add Darwin specific madvise options

Change by David CARLIER : -- components: macOS nosy: devnexen, ned.deily, ronaldoussoren priority: normal pull_requests: 21996 severity: normal status: open title: mmap module add Darwin specific madvise options type: enhancement ___ Python tracker

[issue35753] Importing call from unittest.mock directly causes ValueError

David Antonini added the comment: Somehow I missed the follow up here until now. I don't remember the original code, but I'm fairly confident that mocked_print is the patched print function eg with patch('dionysus_app.class_functions.print') as mocked_print: Probably solved in this commit

[issue42030] Drop support for dynload_aix

David Edelsohn added the comment: If Python has been defaulting to dlopen() on AIX systems that support it, there is no reason to maintain the historical, AIX-specific load() support in dynload_aix.c I believe that dlopen() was introduced on AIX in release 4.3. The official end of support

[issue42047] DragonFlyBSD thread native id support missing

Change by David CARLIER : -- keywords: +patch pull_requests: +21681 stage: -> patch review pull_request: https://github.com/python/cpython/pull/22714 ___ Python tracker <https://bugs.python.org/issu

[issue42047] DragonFlyBSD thread native id support missing

Change by David CARLIER : -- components: Extension Modules nosy: devnexen priority: normal severity: normal status: open title: DragonFlyBSD thread native id support missing type: enhancement versions: Python 3.10 ___ Python tracker <ht

[issue42025] zoneinfo: wrong time difference across transition when tzinfo is equal

David Grellscheid added the comment: OK, having read https://blog.ganssle.io/articles/2018/02/aware-datetime-arithmetic.html, this bizarreness is actually intended behaviour. It goes completely against my intuitive understanding of how this should come out. No additions are involved, just

[issue42025] zoneinfo: wrong time difference across transition when tzinfo is equal

David Grellscheid added the comment: Here's a third example, without fold= involved. The spring transition also does not work when the timezone in the difference is equal: 01:59:00 to 03:01:00 should be 2 minutes All these should be 0:02:00 apart 1:02:00 Oslo_1 - Oslo_0 0:02:00 Berlin_1

[issue42025] zoneinfo: fold not taken into account in time difference when tzinfo is equal

David Grellscheid added the comment: To make it clear that this issue is not covered by ... "Two such instances that differ only by the value of the fold attribute will not be distinguishable by any means other than an explicit access to the fold value." (PEP 495) I hav

[issue42025] zoneinfo: fold not taken into account in time difference when tzinfo is equal

New submission from David Grellscheid : I'm comparing two aware timestamps during a clock transition that differ only in their fold= value. When taking the difference of two aware timestamps with the *same* tzinfo, the fold parameter is ignored. A difference between two timestamps

[issue7946] Convoy effect with I/O bound threads and New GIL

David Beazley added the comment: About nine years ago, I stood in front of a room of Python developers, including many core developers, and gave a talk about the problem described in this issue. It included some live demos and discussion of a possible fix. https://www.youtube.com/watch?v

[issue41743] Remove Unnecessarily Gendered Language from the Documentation

David Williams added the comment: Thanks also for your input and feedback, Ammar. -- ___ Python tracker <https://bugs.python.org/issue41743> ___ ___ Python-bug

[issue41743] Remove Unnecessarily Gendered Language from the Documentation

David Williams added the comment: Thanks Victor, I will submit a change request for both of the documents you specified. https://www.python.org/dev/peps/pep-3136/ https://github.com/python/devguide/issues/605 Steven, it sounds like we agree to the change proposal, which is to remove

[issue41743] Remove Unnecessarily Gendered Language from the Documentation

New submission from David Williams : The Python documentation contains unnecessarily verbose and gendered language which does not enhance clarity, and rather, serves as non-inclusive to the LGTBQ community For example: https://www.python.org/dev/peps/pep-3136/ "Introduction The

[issue12806] argparse: Hybrid help text formatter

David Steele added the comment: I've submitted FlexiHelpFormatter as PR22129. This adds the FlexiHelpFormatter class to argparse. It supports wrapping text, while preserving paragraphs. Bullet lists are supported. There are a number of differences, relative to the latest patch in the issue

[issue12806] argparse: Hybrid help text formatter

Change by David Steele : -- keywords: +patch pull_requests: +21210 stage: -> patch review pull_request: https://github.com/python/cpython/pull/22129 ___ Python tracker <https://bugs.python.org/issu

[issue41401] Using non-ascii that require UTF-8 breaks AIX testing

Change by David Edelsohn : -- nosy: +David.Edelsohn ___ Python tracker <https://bugs.python.org/issue41401> ___ ___ Python-bugs-list mailing list Unsubscribe:

[issue41717] [AIX] test_io: files was modified by test_io: (@test_6488748_tmpæ) on POWER6 AIX 3.9

David Edelsohn added the comment: It's the same system. It doesn't fail alone. Didn't we both previously see issues with the interaction of tests due to the other of tests, that previous tests left things in the environment that affected later tests

[issue41717] [AIX] test_io: files was modified by test_io: (@test_6488748_tmpæ) on POWER6 AIX 3.9

David Edelsohn added the comment: Bisection failed after 101 iterations and 0:20:29 -- ___ Python tracker <https://bugs.python.org/issue41717> ___ ___ Python-bug

[issue41691] Idle 3.8.5 on Win64 won't save a file if it didn't include a newline when it was opened (ex: opening empty file)

David Crespo added the comment: Thanks for your answers. I tried to search if the bug was already reported using some text searches but I couldn't find it so I opened a new one. Next time I'll try what you recommend. Regards and thanks for keeping Python in good shape

[issue41642] Buildbot: workers detached every minute and "no space left on device" issue

David Edelsohn added the comment: I have updated edelsohn-aix-ppc64 edelsohn-debian-z edelsohn-fedora-ppc64 edelsohn-fedora-rawhide-z edelsohn-fedora-z edelsohn-rhel-z edelsohn-rhel8-z edelsohn-sles-z aixtools-aix-power6 -- ___ Python tracker

[issue41691] Idle 3.8.5 on Win64 won't save a file if it didn't include a newline when it was opened (ex: opening empty file)

New submission from David Crespo : Idle won't save a file if it didn't include a newline when it was opened (ex: opening empty file) Steps for reproducing the error: 1) get into some folder in Windows File Explorer 2) right-click on empty space for context menu 3) click new -> create t

[issue39010] ProactorEventLoop raises unhandled ConnectionResetError

David Bolen added the comment: I'm guessing the warning appears odd as we're seeing a thread shutdown data race. The message is produced by threading_cleanup in support/threading_helper.py, and it appears that between the first and second lines one of the initially dangling threads goes

[issue39010] ProactorEventLoop raises unhandled ConnectionResetError

David Bolen added the comment: I've been seeing failures on the Win10 buildbot 3.x branch that seem to correlate with the timing of this change - could there be some further work needed on Windows? Or, if it's a test-only artifact and the warnings are innocuous, something to ignore

[issue41642] Buildbot: workers detached every minute and "no space left on device" issue

David Edelsohn added the comment: I can provide some information from the logs of one of the buildbots, or change a parameter. Let me know. -- ___ Python tracker <https://bugs.python.org/issue41

[issue41642] RHEL and fedora buildbots fail due to disk space error

David Edelsohn added the comment: I have found a large number of un-removed files in /tmp. Things seem to function better with Buildbots running older 0.x "buildslave" as opposed to newer "builtbot-worker" instances. -- nosy: +David.Edelsohn title: Buildbot: wo

[issue41648] edelsohn-* buildbot worker failing with: No space left on device

David Edelsohn added the comment: If they want to discuss here, fine, but the failing bot is a symptom not the problem. The Buidlbot infrastructure is unstable, causing disconnects and leaving un-removed files. If one looks at the workers, one can see many of the architectures

[issue41648] edelsohn-* buildbot worker failing with: No space left on device

David Edelsohn added the comment: It really would be better to discuss this in the builtbot mailing list and not Python issue tracker. I have been seeing problems with many buildbots for the past few weeks, not just the s390x bots. I receive messages that all of the bots disconnected

[issue19521] Parallel build race condition on AIX since python-2.7

David Edelsohn added the comment: Yes, export file generation still is required. Python does not need to utilize runtime linking. Using -G is a very bad choice and severely discouraged with severe performance and other penalties. -- ___ Python

[issue41540] Test test_maxcontext_exact_arith (_decimal) consumes all memory on AIX

David Edelsohn added the comment: > About PSALLOC=early , I confirm that it perfectly fixes the issue. > I'm surprised, because it is unspeakably slow on this machine, These statements are not contradictory. No one is suggesting that Python always should run with PSALLOC

[issue41553] encoded-word abused for header line folding causes RFC 2047 violation

R. David Murray added the comment: Yes for the registry changes. I thought we had fixed the bug that was causing message-id to get encoded, but maybe it still exists in 3.7? I don't remember when we fixed it (and I may be remembering wrong!) As for X- "unstructured headers&quo

[issue41569] json.JSONEncoder.default should be called for dict keys as well

New submission from David Byrne : Sub-classing and overriding json.JSONEncoder.default allows users to create custom serialisation for objects that can’t otherwise be serialized. However, this method is only called for dictionary values such that dictionary supported keys (i.e. hashable types

[issue38628] Issue with ctypes in AIX

David Edelsohn added the comment: Yes, it doesn't appear that it will be solved in libffi. I don't fully understand the need for the work-around because it should gracefully overflow to the stack. I can't tell if the issue is a problem with arguments passed by value that need to be passed

[issue41540] Test test_maxcontext_exact_arith (_decimal) consumes all memory on AIX

David Edelsohn added the comment: AIX uses a "late" memory allocation scheme by default. If the test wants to malloc(52631578947368422ULL) and intends it to fail, it should run with the AIX $ export PSALLOC=early environment variable. More than all of the other maxdata changes.

[issue41553] encoded-word abused for header line folding causes RFC 2047 violation

R. David Murray added the comment: It's not really an abuse. It is, however, buggy. It should be being applied *only* when the header contains unstructured text. Unfortunately I made the choice to treat any header that doesn't have a specific parser as unstructured, and that was a wrong

[issue41540] Test test_maxcontext_exact_arith (_decimal) consumes all memory on AIX

David Edelsohn added the comment: AIX systems at OSUOSL have been part of the GNU Compile Farm for a decade. It also is the system on which I have been running the Python Buildbot. Any Compile Farm user has access to AIX. https://cfarm.tetaneutral.net/users/new/ Also, IBM

[issue41540] Test test_maxcontext_exact_arith (_decimal) consumes all memory on AIX

David Edelsohn added the comment: Core developers have full access to AIX system for the asking. Back to you, Stefan. -- ___ Python tracker <https://bugs.python.org/issue41

[issue38628] Issue with ctypes in AIX

David Edelsohn added the comment: +Eryksun,Vinay The patch to address array passing described in issue #22273 introduced regressions for other targets. The 16 byte struct size is specific to x86 ABI and register passing convention. I appreciate that the 16-32 byte size structure causes

[issue41506] Inclusion or documentation of extended with syntax in 3.9

David Halter added the comment: I second this. I just see people complaining about this not working in a lot of tools. This is really not necessary for a feature that should not be used anyway and puts work onto the greater Python ecosystem for no good reason

[issue41506] Inclusion or documentation of extended with syntax in 3.9

Change by David Halter : -- nosy: +davidhalter ___ Python tracker <https://bugs.python.org/issue41506> ___ ___ Python-bugs-list mailing list Unsubscribe:

[issue41273] asyncio: proactor read transport: use recv_into instead of recv

David Bolen added the comment: It looks like there was an underlying asyncio.recv_into bug that was the likely root issue here. It's recently been fixed in bpo-41467, and test_asyncio is passing on at least the Win10 buildbot. -- ___ Python

[issue41467] asyncio: recv_into() must not return b'' if the socket/pipe is closed

David Bolen added the comment: Just for the record, this fix also appears to have resolved the issue with the Win10 buildbot from bpo-41273, which was related to the same unraisable exceptions mentioned in bpo-38912. -- nosy: +db3l ___ Python

[issue38628] Issue with ctypes in AIX

David Edelsohn added the comment: As mentioned in the stgdict.c comment, this relates back to #22273 and #29565. The passing of arrays/structs is fragile, to use a euphemism. The ctypes behavior conforms to the x64 Linux ABI and x64 libffi, even the comment from #22273, "St

[issue38628] Issue with ctypes in AIX

David Edelsohn added the comment: The example with memchr() never will be correct because it is invalid to call a function with an argument list that doesn't match the function signature. Your comment mentions that the AIX structure is size 16, but it looks like Python calculates the AIX

[issue38628] Issue with ctypes in AIX

David Edelsohn added the comment: I thought that the ctypes documentation mentioned that Arrays passed by Value are converted to Structures. I cannot find it in the ctypes documentation at the moment. But Modules/_ctypes/stgdict.c has a large comment about passing Arrays by Value

[issue41402] email: ContentManager.set_content calls nonexistent method encode() on bytes

R. David Murray added the comment: The fix looks good to me. Don't know how I made that mistake, and obviously I didn't write a test for it... -- ___ Python tracker <https://bugs.python.org/issue41

[issue40360] Deprecate lib2to3 (and 2to3) for future removal

David Halter added the comment: @gvanrossum > Does parso have to be pure Python? If not, we could generate C code like we > do for CPython's parser. I would rather write the parser either in C or Rust. So no, parso does not need to be pure Python. > Now, that doesn't work for in

[issue41421] Random.paretovariate sometimes raises ZeroDivisionError for small alpha

David MacIver added the comment: I should say, I don't actually care about this bug at all: I only ran into it because of trying to recreate the random API and testing that my recreation worked sensibly. I thought I'd do the good citizen thing and report it, but I'm totally fine with any

[issue41421] Random.paretovariate sometimes raises ZeroDivisionError for small alpha

David MacIver added the comment: I guess on actual inspection of the code (which I should have done before, sorry) it's obvious why this happens: u ** (1.0 / alpha) will round to 0.0 for small values of u, and the smaller alpha is the higher the probability of that happening

[issue41421] Random.paretovariate sometimes raises ZeroDivisionError for small alpha

New submission from David MacIver : The following code raises a ZeroDivisionError: from random import Random Random(14064741636871487939).paretovariate(0.01) This raises: random.py, line 692, in paretovariate return 1.0 / u ** (1.0/alpha) ZeroDivisionError: float division by zero

[issue38628] Issue with ctypes in AIX

David Edelsohn added the comment: Tony, Please see my reply from 2020-02-05. This is a known "bug" in Python ctypes. This is documented in Python ctypes. This will not be fixed. This cannot be fixed. Python ctypes converts the array to a structure and creates an incorr

[issue40360] Deprecate lib2to3 (and 2to3) for future removal

David Halter added the comment: Parso's incremental parser is a terrible idea. It also works and is pretty fast, but the design is pretty terrible (it took me a lot of fuzzing to make sure that it works decently well). The basic problem is that it's reusing nodes in a mutable way. If I were

[issue41387] Escape needed in the email documentation example

Change by R. David Murray : -- resolution: -> not a bug stage: -> resolved status: open -> closed ___ Python tracker <https://bugs.python.or

[issue41273] asyncio: proactor read transport: use recv_into instead of recv

David Bolen added the comment: First, I also no longer see the error with a local PR 21446 build on the Win10 buildbot. As for timing, I believe policy is to revert, but in my view it can probably depend on how short "a bit" is for the fix. We've been in this state for 4-5 da

[issue41273] asyncio: proactor read transport: use recv_into instead of recv

David Bolen added the comment: I can at least confirm that this commit is the source of the issue on the Windows 10 buildbot. Interactively, it fails every time with it in place (unlike the buildbot which has had the occasional success) and passes reliably with it reverted. The error

[issue20840] AttributeError: 'module' object has no attribute 'ArgumentParser'

David Friedman added the comment: I know this is 6 years too late, but I had this problem a few minutes ago on Python2.7. Googling didn't find me anything relevant except this bug entry. However, I found the cause myself: I had a test file named argparse.py (and an argparse.pyc

[issue38656] mimetypes for python 3.7.5 fails to detect matroska video

David K. Hess added the comment: @michael-lazar a documentation change seems the path of least resistance given the complicated history of this module. +1 from me. -- ___ Python tracker <https://bugs.python.org/issue38

[issue41295] CPython 3.8.4 regression on __setattr__ in multiinheritance with metaclasses

David Caro added the comment: > David, which issue number is this? It's issue41295, pr #21473 -- ___ Python tracker <https://bugs.python.org/issu

[issue41295] CPython 3.8.4 regression on __setattr__ in multiinheritance with metaclasses

David Caro added the comment: Just sent a PR that fixes the issue (a first approach), let me know if it's addressing the issue correctly or if there's a better way. Thanks! -- ___ Python tracker <https://bugs.python.org/issue41

[issue41295] CPython 3.8.4 regression on __setattr__ in multiinheritance with metaclasses

Change by David Caro : -- keywords: +patch nosy: +David Caro nosy_count: 5.0 -> 6.0 pull_requests: +20617 stage: -> patch review pull_request: https://github.com/python/cpython/pull/21473 ___ Python tracker <https://bugs.python.org/i

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