[issue33376] [pysqlite] Duplicate rows can be returned after rolling back a transaction

New submission from cary : # Description Rolling back a transaction causes all statements associated with that transaction to be reset, which allows the statements to be used again from the pysqlite statement cache. This can interact with various methods on `Cursor` objects

[issue33374] generate-posix-vars failed when building Python 2.7.14 on Linux

Change by Ned Deily : -- nosy: +benjamin.peterson ___ Python tracker ___ ___

[issue32718] Install PowerShell activation scripts for venv for all platforms

Change by Brett Cannon : -- assignee: -> brett.cannon ___ Python tracker ___ ___

[issue33366] `contextvars` documentation incorrectly refers to "non-local state".

Change by miss-islington : -- pull_requests: +6317 ___ Python tracker ___

[issue33366] `contextvars` documentation incorrectly refers to "non-local state".

Yury Selivanov added the comment: Thank you, Tom! -- resolution: -> fixed stage: patch review -> resolved status: open -> closed ___ Python tracker

[issue33363] async for statement is not a syntax error in sync context

Yury Selivanov added the comment: Thanks so much! -- resolution: -> fixed stage: patch review -> resolved status: open -> closed ___ Python tracker

[issue33363] async for statement is not a syntax error in sync context

Yury Selivanov added the comment: New changeset a93a663d6c2fdfbddbda9729c96e2737c0012522 by Yury Selivanov (Zsolt Dollenstein) in branch '3.7': [3.7] bpo-33363: raise SyntaxError for async for/with outside async functions (GH-6616). (GH-6619)

[issue33373] Tkinter ttk Label background ignored on MacOS

Terry J. Reedy added the comment: ttk Label backgrounds work fine on Windows and, possibly, Linux (Serhiy?), and even, possibly with tcl/tk 8.6 on macOS (Ned?). tk 8.6 for macOS has gotten several bug fixes. C.D., please download and try out the python.org 3.7.0b3 macOS

[issue27987] obmalloc's 8-byte alignment causes undefined behavior

Change by Tom Grigg : -- nosy: +tgrigg ___ Python tracker ___ ___ Python-bugs-list

[issue33374] generate-posix-vars failed when building Python 2.7.14 on Linux

Change by Tom Grigg : -- nosy: +fweimer ___ Python tracker ___ ___ Python-bugs-list

[issue33374] generate-posix-vars failed when building Python 2.7.14 on Linux

Tom Grigg added the comment: I beleive this is caused by https://bugs.python.org/issue27987 in combination with GCC 8. Florian Weimer proposed a patch which is included in the Fedora build:

[issue32857] tkinter after_cancel does not behave correctly when called with id=None

Change by Cheryl Sabella : -- pull_requests: +6316 ___ Python tracker ___ ___

[issue33352] Windows: test_regrtest fails on installed Python

Terry J. Reedy added the comment: On my system: py -3.n -m test.test_regrtest (or test test_regrtest) fails for n in {5, 6, 7}. 2.7 runs, but there are far fewer test methods. Repository builds work fine. -- nosy: +terry.reedy stage: -> needs patch type: ->

[issue33351] Support compiling with clang-cl on Windows

Change by Terry J. Reedy : -- components: +Windows nosy: +paul.moore, steve.dower, tim.golden, zach.ware stage: -> test needed ___ Python tracker

[issue33347] zlibmodule undefined reference

Change by Terry J. Reedy : -- nosy: +serhiy.storchaka, twouters versions: +Python 3.8 -Python 3.4, Python 3.5 ___ Python tracker ___

[issue33343] [argparse] Add subcommand abbreviations

Terry J. Reedy added the comment: I am closing this as a duplicate of #12713. Paul, if you think that also should be closed, say so there if you have not done so yet. -- nosy: +terry.reedy resolution: -> duplicate stage: -> resolved status: open -> closed

[issue33341] python3 fails to build if directory or sysroot contains "*icc*" string

Terry J. Reedy added the comment: Thank you. Yes, we require a signed CA for something this non-trivial. Victor, I don't know who maintains configure. If you don't, maybe you know who does. -- nosy: +terry.reedy, vstinner stage: -> patch review

[issue33339] Using default encoding with `subprocess.run()` is not obvious

Change by Terry J. Reedy : -- assignee: -> docs@python components: +Documentation nosy: +docs@python stage: -> needs patch type: -> enhancement versions: +Python 2.7, Python 3.6, Python 3.7, Python 3.8 ___ Python tracker

[issue24209] Allow IPv6 bind in http.server

Jason R. Coombs added the comment: >From what I can tell, there's not currently any tests for the behavior of >`http.server` as a script, and that sounds like a non-trivial behavior to >test. I agree documentation updates for this change are essential, but I'd >suggest a

[issue33336] [imaplib] MOVE is a legal command

Change by Terry J. Reedy : -- type: -> enhancement versions: -Python 3.4, Python 3.5, Python 3.6, Python 3.7 ___ Python tracker ___

[issue33335] turtle.onkey doesn't pass key information when key is None

Change by Terry J. Reedy : -- components: +Library (Lib) -Tkinter nosy: +gregorlingl, willingc stage: -> test needed type: behavior -> enhancement versions: -Python 2.7, Python 3.4, Python 3.5, Python 3.6, Python 3.7 ___ Python

[issue33370] Addition of mypy cache to gitignore

Change by Brett Cannon : -- type: -> enhancement ___ Python tracker ___ ___

[issue33370] Addition of mypy cache to gitignore

Brett Cannon added the comment: Python's standard library isn't typed so running mypy on it isn't really beneficial at the moment. Plus you can add .mypy_cache to your global .gitignore file. I'm not saying we can't add it, I'm just saying it isn't a priority. --

[issue33327] Add a method to move messages to IMAPlib

Change by Terry J. Reedy : -- stage: -> test needed versions: -Python 2.7, Python 3.4, Python 3.5, Python 3.6, Python 3.7 ___ Python tracker

[issue24209] Allow IPv6 bind in http.server

Change by Jason R. Coombs : -- nosy: +jason.coombs ___ Python tracker ___ ___

[issue32608] Incompatibilities with the socketserver and multiprocessing packages

Michael Durso added the comment: Hi Antoine, were you able to check out the pull request? I'd like to get the issues resolved so the code can be merged into the next version. Thanks! -- ___ Python tracker

[issue33363] async for statement is not a syntax error in sync context

Change by Zsolt Dollenstein : -- pull_requests: +6315 ___ Python tracker ___ ___

[issue33369] Removing Popen log files in threads is racy on Windows

Peter Boström added the comment: Wow that's old, yeah that's fair (I wouldn't expect this to be backported to any old releases). Our current "workaround" is to try os.remove, sleep, repeat X times. This seems still racy and not something we'd like to have in our script if it

[issue33337] Provide a supported Concrete Syntax Tree implementation in the standard library

Change by Jakub Wilk : -- nosy: +jwilk ___ Python tracker ___ ___ Python-bugs-list mailing

[issue1692664] warnings.py gets filename wrong for eval/exec

Thomas Kluyver added the comment: Thanks Guido, the new issue is #33375. -- ___ Python tracker ___

[issue33375] warnings: get filename from frame.f_code.co_filename

New submission from Thomas Kluyver : The warnings module tries to find and show the line of code which is responsible for a warning, for the same reasons that tracebacks show a line of code from each stack frame. However, they work in quite different ways. Native

[issue33363] async for statement is not a syntax error in sync context

Yury Selivanov added the comment: New changeset e2396506606115e785c94ec129eb86e2ed0aa744 by Yury Selivanov (Zsolt Dollenstein) in branch 'master': bpo-33363: raise SyntaxError for async for/with outside async functions (#6616)

[issue33374] generate-posix-vars failed when building Python 2.7.14 on Linux

New submission from Piotr Dobrogost : When building Python 2.7.14 on Fedora 28 I get the following error: [piotr@demon]/tmp/Python-2.7.14% make (…) ./python -E -S -m sysconfig --generate-posix-vars ;\ if test $? -ne 0 ; then \ echo "generate-posix-vars failed" ;

[issue1692664] warnings.py gets filename wrong for eval/exec

Guido van Rossum added the comment: I recommend opening a new issue (you can link to this one for past discussion). -- ___ Python tracker

[issue33373] ttk modules Label class does not respect background config option

New submission from C.D. MacEachern : Python tkinter.ttk.Label instance is not respecting background configuration. I'm running 3.6.5 64-bit python with Tk 8.6 on OS X 10.13.4. Here is an output of an interactive session to demonstrate the steps. Notice that the

[issue33361] readline() + seek() on io.EncodedFile breaks next readline()

Elena Oat added the comment: I've modified a little your example and it's clearly that the readline moves the cursor. ``` from __future__ import print_function import codecs import io def run(stream): offset = stream.tell() try: stream.seek(0)

[issue1692664] warnings.py gets filename wrong for eval/exec

Thomas Kluyver added the comment: Time for some bug archaeology! The reason given for not using frame.f_code.co_filename for warnings was that it can be wrong when the path of .pyc files changes. However, it looks like that was fixed in #1180193 (thanks for the pointer

[issue33361] readline() + seek() on io.EncodedFile breaks next readline()

Elena Oat added the comment: For you specific example I get also a weird result. Tried this in Python 2.7.10 and Python 3.6.0. -- ___ Python tracker

[issue31727] FTP_TLS errors when use certain subcommands

Matthieu Pepin added the comment: I can confirm. I'm having the exact same issue in Python 3.6.5. -- nosy: +Matthieu Pepin ___ Python tracker

[issue33358] [EASY] x86 Ubuntu Shared 3.x: test_embed.test_pre_initialization_sys_options() fails

miss-islington added the comment: New changeset dd3ede7537653a62815c2fedbb67d6f2fb870d4c by Miss Islington (bot) in branch '3.7': bpo-33358: Fix test_embed.test_pre_initialization_sys_options (GH-6612)

[issue33041] Issues with "async for"

STINNER Victor added the comment: I didn't check if the new warning, fixed by my PR-6595 in the master branch, exists on Windows in 3.6 and 3.7. If it does, you might want to request a backport of my PR. Usually, I only fix compiler warnings in the master branch.

[issue33041] Issues with "async for"

STINNER Victor added the comment: New changeset 078c4e3519deeef8014541925da057bb064eb5a8 by Victor Stinner in branch 'master': bpo-33041: Fix downcast warning on Windows (#6595) https://github.com/python/cpython/commit/078c4e3519deeef8014541925da057bb064eb5a8 --

[issue33358] [EASY] x86 Ubuntu Shared 3.x: test_embed.test_pre_initialization_sys_options() fails

Change by miss-islington : -- pull_requests: +6314 ___ Python tracker ___

[issue33358] [EASY] x86 Ubuntu Shared 3.x: test_embed.test_pre_initialization_sys_options() fails

STINNER Victor added the comment: New changeset 4114846265536344538ae44cb8ffd8ce2903faf7 by Victor Stinner (Pablo Galindo) in branch 'master': bpo-33358: Fix test_embed.test_pre_initialization_sys_options (GH-6612)

[issue33361] readline() + seek() on io.EncodedFile breaks next readline()

Elena Oat added the comment: I've tried this with Python 3.6.0 on OSX 10.13.4 -- ___ Python tracker ___

[issue27277] Fatal Python error: Segmentation fault in test_exceptions

STINNER Victor added the comment: > It was encountered recently while building Python 3.6 under CentOS 6 [0] and > the way to fix it was to increase the maximum stack size using ulimit e.g. [1] In a perfect world, unit tests should not depend on the environment. So Python

[issue27277] Fatal Python error: Segmentation fault in test_exceptions

Charalampos Stratakis added the comment: This is an issue with the stack size. It was encountered recently while building Python 3.6 under CentOS 6 [0] and the way to fix it was to increase the maximum stack size using ulimit e.g. [1] [0]

[issue29652] Fix evaluation order of keys/values in dict comprehensions

Nick Coghlan added the comment: The current discrepancy is odd when you compare it to the equivalent generator expression: {k:v for k, v in iterable} dict(((k, v) for k, v in iterable)) It would never have occurred to me to expect the evaluation order to match a

[issue33366] `contextvars` documentation incorrectly refers to "non-local state".

Tom Christie added the comment: Refs: https://github.com/python/cpython/pull/6617 -- ___ Python tracker ___

[issue33366] `contextvars` documentation incorrectly refers to "non-local state".

Change by Roundup Robot : -- keywords: +patch pull_requests: +6313 stage: -> patch review ___ Python tracker ___

[issue33372] Wrong calculation

Steven D'Aprano added the comment: Ah sheesh I copied and pasted the wrong bits. After the division terms go to zero, you get -590072-200112-18-18-18-18-18-18-18-18+9998599835 which goes to 9997809507 as calculated by Ruby and Python 2, and I promise that's the

[issue33372] Wrong calculation

Steven D'Aprano added the comment: > Even Ruby gets the right answer (9997809507) for that :-) Oops, I forgot to say... Ruby 1.8 also does truncating division like Python 2. -- ___ Python tracker

[issue33372] Wrong calculation

Steven D'Aprano added the comment: I agree with Tim that this is likely to be the difference between Python 2 truncating division and Python 3 division. For the record, I get the following results: 9997809507L Python 2.7 9997809307.0 Python 3.5 9997809307 R