[issue33009] inspect.signature crashes on unbound partialmethods

New submission from Antony Lee : The following example crashes Python 3.6: from functools import partialmethod import inspect class T: g = partialmethod((lambda self, x: x), 1) print(T().g()) # Correctly returns 1. print(T.g(T())) #

[issue32999] issubclass(obj, abc.ABC) causes a segfault

Change by Alexey Izbyshev : -- versions: +Python 3.7 ___ Python tracker ___ ___

[issue33008] urllib.request.parse_http_list incorrectly strips backslashes

New submission from W. Trevor King : Python currently strips backslashes from inside quoted strings: $ echo 'a="b\"c",d=e' | python3 -c 'from sys import stdin; from urllib.request import parse_http_list; print(parse_http_list(stdin.read()))' ['a="b"c"', 'd=e'] It should

[issue32997] Catastrophic backtracking in fpformat

Benjamin Peterson added the comment: New changeset 55d5bfba9482d39080f7b9ec3e6257ecd23f264f by Benjamin Peterson (Jamie Davis) in branch '2.7': [2.7] closes bpo-32997: Fix REDOS in fpformat (GH-5984)

[issue33007] Objects referencing private-mangled names do not roundtrip properly under pickling.

New submission from Antony Lee : Consider the following example: import pickle class T: def __init__(self): self.attr = self.__foo def __foo(self): pass print(pickle.loads(pickle.dumps(T( This fails on 3.6 with

[issue23159] argparse: Provide equivalent of optparse.OptionParser.{option_groups, option_list, get_option}

Eric McDonald added the comment: Yes, this issue could be closed. I think the concept is still valid and perhaps worthy of future consideration as it is a means of unifying two different configuration processing mechanisms in the standard library without having

[issue33005] 3.7.0b2 Interpreter crash in dev mode (or with PYTHONMALLOC=debug) with 'python -X dev -c 'import os; os.fork()'

Change by Xiang Zhang : -- nosy: +eric.snow, vstinner, xiang.zhang ___ Python tracker ___

[issue33004] Shutil module functions could accept Path-like objects

Marco Rougeth added the comment: You're right @josh.r! Thank you! -- resolution: -> duplicate stage: -> resolved status: open -> closed ___ Python tracker

[issue25197] Allow documentation switcher to change url to /3/ and /dev/

Mariatta Wijaya added the comment: Yeah I believe this issue is out of date. Thanks. -- nosy: +Mariatta resolution: -> out of date stage: patch review -> resolved status: open -> closed ___ Python tracker

[issue32969] Add more constants to zlib module

Change by Xiang Zhang : -- type: enhancement -> versions: +Python 3.6, Python 3.7 ___ Python tracker ___

[issue33006] docstring of filter function is incorrect

New submission from Pierre Thibault : > help(filter) Help on built-in function filter in module __builtin__: filter(...) filter(function or None, sequence) -> list, tuple, or string Return those items of sequence for which function(item) is true. If

[issue32919] csv.reader() to support QUOTE_ALL

Pavel Shpilev added the comment: I know that CSV specification says empty field and empty string are the same, however, I still believe there is practical use for unconventional processing of such fields. In our specific case we parse CSVs produced by Amazon Athena

[issue33004] Shutil module functions could accept Path-like objects

Josh Rosenberg added the comment: I think this falls under the umbrella of #30235, which posits that Path-like objects should be supported by shutil (and includes notes on doc validation). -- nosy: +josh.r ___ Python

[issue28788] ConfigParser should be able to write config to a given filename, not only into file object

Change by Roundup Robot : -- keywords: +patch pull_requests: +5765 stage: -> patch review ___ Python tracker ___

[issue31226] shutil.rmtree fails when target has an internal directory junction (Windows)

Change by Vidar Fauske : -- keywords: +patch pull_requests: +5764 stage: test needed -> patch review ___ Python tracker ___

[issue32991] AttributeError in doctest.DocTestFinder.find

Jason R. Coombs added the comment: New changeset b9650a04a81355c8a7dcd0464c28febfb4bfc0a9 by Jason R. Coombs in branch 'master': bpo-32991: Restore expectation that inspect.getfile raises TypeError on namespace package (GH-5980)

[issue32991] AttributeError in doctest.DocTestFinder.find

Change by miss-islington : -- pull_requests: +5763 ___ Python tracker ___

[issue33001] Buffer overflow vulnerability in os.symlink on Windows

miss-islington added the comment: New changeset 96fdbacb7797a564249fd59ccf86ec153c4bb095 by Miss Islington (bot) in branch '3.7': bpo-33001: Prevent buffer overrun in os.symlink (GH-5989)

[issue33005] 3.7.0b2 Interpreter crash in dev mode (or with PYTHONMALLOC=debug) with 'python -X dev -c 'import os; os.fork()'

Jason Madden added the comment: I built a local version of master (6821e73) and was able to get some line numbers (they're off by one for some reason, it appears): Thread 0 Crashed:: Dispatch queue: com.apple.main-thread 0 libsystem_kernel.dylib

[issue33004] Shutil module functions could accept Path-like objects

New submission from Marco Rougeth : This is issue is to suggest an enhancement to the shutil module, I believe it's quiet similar to the issue32642. I was using shutil.copytree to copy some files around and I tried to pass Path-like objects as input but got the exception

[issue33005] 3.7.0b2 Interpreter crash in dev mode (or with PYTHONMALLOC=debug) with 'python -X dev -c 'import os; os.fork()'

New submission from Jason Madden : At the request of Victor Stinner on twitter, I ran the gevent test suite with Python 3.7.0b2 with the new '-X dev' argument and discovered an interpreter crash. With a bit of work, it boiled down to a very simple command: $ env -i

[issue33003] urllib: Document parse_http_list

New submission from W. Trevor King : Python has had a parse_http_list helper since urllib2 landed in 6d7e47b8ea (EXPERIMENTAL, 2000-01-20). With Python3 it was moved into urllib.request, and the implementation hasn't changed since (at least as of 4c19b9573, 2018-03-05).

[issue33001] Buffer overflow vulnerability in os.symlink on Windows

Steve Dower added the comment: Patches are merged, except for the ones that belong to @Larry. Thanks again Alexey for the final round of feedback! -- nosy: +larry ___ Python tracker

[issue33001] Buffer overflow vulnerability in os.symlink on Windows

Change by miss-islington : -- pull_requests: +5762 ___ Python tracker ___

[issue33001] Buffer overflow vulnerability in os.symlink on Windows

Steve Dower added the comment: New changeset baa45079466eda1f5636a6d13f3a60c2c00fdcd3 by Steve Dower in branch '3.6': [3.6] bpo-33001: Prevent buffer overrun in os.symlink (GH-5989) (GH-5990)

[issue33001] Buffer overflow vulnerability in os.symlink on Windows

Steve Dower added the comment: New changeset 6921e73e33edc3c61bc2d78ed558eaa22a89a564 by Steve Dower in branch 'master': bpo-33001: Prevent buffer overrun in os.symlink (GH-5989) https://github.com/python/cpython/commit/6921e73e33edc3c61bc2d78ed558eaa22a89a564

[issue29417] Sort entries in foo.dist-info/RECORD

Éric Araujo added the comment: Hello! distutils does not write dist-info directories itself; wheel, setuptools and other build tools do that. Look at https://github.com/pypa to find the bug trackers (I forget if wheel is there or on bitbucket) -- resolution: ->

[issue29417] Sort entries in foo.dist-info/RECORD

Dawei Wang added the comment: This is important since for aws lambda the package can change every time. -- nosy: +Dawei Wang ___ Python tracker

[issue33002] Making a class formattable as hex/oct integer with printf-style formatting requires both __int__ and __index__ for no good reason

Josh Rosenberg added the comment: To be clear, this is a problem with old-style (printf-style) formatting, and applies to both bytes formatting and str formatting. So a class like: class Foo: def __index__(self): return 1 will fail with

[issue20092] type() constructor should bind __int__ to __index__ when __index__ is defined and __int__ is not

Josh Rosenberg added the comment: Pingback from #33002, which is caused by the fact that parts of the CPython code base that use PyNumber_Index for type conversion still pre-check for valid types with PyNumber_Check, meaning that a type with __index__ and not

[issue33002] Making a class formattable as hex/oct integer requires both __int__ and __index__ for no good reason

Josh Rosenberg added the comment: Note: Obviously, defining __index__ without defining __int__ is a little strange (it's *equivalent* to int, but can't be *coerced* to int?), so yet another fix would be addressing #20092 so it wouldn't be possible for a type to

[issue33002] Making a class formattable as hex/oct integer requires both __int__ and __index__ for no good reason

New submission from Josh Rosenberg : In Python 2, making a user-defined class support formatting using the integer-specific type codes required that __int__ be defined and nothing else (that is, '%x' % Foo() only required Foo to provide a __int__ method). In

[issue32999] issubclass(obj, abc.ABC) causes a segfault

Alexey Izbyshev added the comment: I've also checked that ABC.register() doesn't allow non-classes (and PEP 3119 mentions that). Looking at PyObject_IsSubclass in Objects/abstract.c, the only case in which its check_class() could be avoided is if there is a custom

[issue32642] add support for path-like objects in sys.path

Jay Yin added the comment: I'm unsure how to regenerate the files that interact with the code for sys.path as travisCI states " Generated files not up to date M Python/importlib_external.h " since my code changes some of how the importing is handled --

[issue32993] urllib and webbrowser.open() can open w/ file: protocol

Change by Brett Cannon : -- keywords: +security_issue title: issue11662 Incomplete fix -> urllib and webbrowser.open() can open w/ file: protocol ___ Python tracker

[issue32984] IDLE: set and unset __file__ for startup files

Change by Terry J. Reedy : -- resolution: -> fixed stage: patch review -> resolved status: open -> closed ___ Python tracker ___

[issue33001] Buffer overflow vulnerability in os.symlink on Windows

Eryk Sun added the comment: >> As os.symlink requires administrative privileges on most versions >> of Windows > > The current implementation requires SeCreateSymbolicLinkPrivilege on > ALL versions of Windows because users must pass an additional flag to >

[issue25427] Remove the pyvenv script in Python 3.8

Change by Brett Cannon : -- stage: patch review -> commit review ___ Python tracker ___

[issue32998] regular expression regression in python 3.7

Change by Doug Hellmann : -- nosy: +doughellmann ___ Python tracker ___ ___

[issue33001] Buffer overflow vulnerability in os.symlink on Windows

Alexey Izbyshev added the comment: > As os.symlink requires administrative privileges on most versions of Windows The current implementation requires SeCreateSymbolicLinkPrivilege on ALL versions of Windows because users must pass an additional flag to CreateSymbolicLink

[issue32305] Namespace packages have inconsistent __file__ and __spec__.origin

Change by Barry A. Warsaw : -- pull_requests: +5761 ___ Python tracker ___ ___

[issue32984] IDLE: set and unset __file__ for startup files

miss-islington added the comment: New changeset 6935a511670797a3aaebdf96aad3dcff66baa76e by Miss Islington (bot) in branch '3.6': bpo-32984: IDLE - set __file__ for startup files (GH-5981)

[issue33001] Buffer overflow vulnerability in os.symlink on Windows

Alexey Izbyshev added the comment: While judging by the source code it seems that bytes in 3.5 should be fine, I've got a crash with the latest binary from python.org: Python 3.5.4 (v3.5.4:3f56838, Aug 8 2017, 02:17:05) [MSC v.1900 64 bit (AMD64)] on win32 Type "help",

[issue32305] Namespace packages have inconsistent __file__ and __spec__.origin

Barry A. Warsaw added the comment: On Mar 5, 2018, at 10:33, Ned Batchelder wrote: > As is usual for me, I am here because some coverage.py code broke due to this > change. A diff between b1 and b2 found me the code change (thanks for the >

[issue32984] IDLE: set and unset __file__ for startup files

Change by miss-islington : -- pull_requests: +5760 ___ Python tracker ___

[issue32305] Namespace packages have inconsistent __file__ and __spec__.origin

Ned Batchelder added the comment: As is usual for me, I am here because some coverage.py code broke due to this change. A diff between b1 and b2 found me the code change (thanks for the comment, btw!), but a What's New doesn't seem out of place. --

[issue33001] Buffer overflow vulnerability in os.symlink on Windows

Change by Steve Dower : -- pull_requests: +5759 ___ Python tracker ___ ___

[issue33001] Buffer overflow vulnerability in os.symlink on Windows

Change by Steve Dower : -- pull_requests: +5758 ___ Python tracker ___ ___

[issue33001] Buffer overflow vulnerability in os.symlink on Windows

Change by Steve Dower : -- pull_requests: +5757 ___ Python tracker ___ ___

[issue32991] AttributeError in doctest.DocTestFinder.find

Barry A. Warsaw added the comment: Good catch Jason. Your fix is exactly right. I approved your PR, which is against master, so it should definitely be backported to 3.7. No need to backport to 3.6; we reverted the change for that release. -- versions: +Python

[issue33001] Buffer overflow vulnerability in os.symlink on Windows

Change by Steve Dower : -- keywords: +patch pull_requests: +5756 stage: -> patch review ___ Python tracker ___

[issue33001] Buffer overflow vulnerability in os.symlink on Windows

New submission from Steve Dower : On February 27th, 2018, the Python Security Response team was notified of a buffer overflow issue in the os.symlink() method on Windows. The issue affects all versions of Python between 3.2 and 3.6.4, including the 3.7 beta releases.

[issue32305] Namespace packages have inconsistent __file__ and __spec__.origin

Barry A. Warsaw added the comment: I guess it depends on whether you think this is a new feature or a bug fix. Or, OTOH, since we had to revert for 3.6, maybe it makes sense either way since some code will be affected. -- ___

[issue32921] .pth files cannot contain folders with utf-8 names

Steve Dower added the comment: Yes, it'll have significant side effects. The default file encoding on Windows is your configured code page (1252, in your case), and there's no good way around that default. The easiest immediate fix is to re-encode that file yourself.

[issue33000] IDLEX GUI consumes all RAM for scrollback buffer, uses 161Bytes / character stored

Terry J. Reedy added the comment: IDLEX is an independently developed and distributed set of IDLE eXtensions. We have nothing to do with it. IDLE, as the name suggests and the doc spells out, is an Integrated Development and Learning Environment. It is not a production

[issue32968] Fraction modulo infinity should behave consistently with other numbers

Elias Zamaria added the comment: Done. -- ___ Python tracker ___ ___ Python-bugs-list

[issue32829] Lib/ be more pythonic

Дилян Палаузов added the comment: The variables got_it in distutils/command/sdist and quote in email/_header_value_parser can be skipped making the code shorter and faster. -- ___ Python tracker

[issue32999] issubclass(obj, abc.ABC) causes a segfault

Alexey Izbyshev added the comment: > Is there any sense in accepting non-types as the first argument of > issubclass()? No, though it is not (clearly) documented. The docs mention TypeError, but only for the second argument if my reading is correct. In practice,

[issue32997] Catastrophic backtracking in fpformat

James Davis added the comment: Equivalent, probably cleaner. Comment on the PR if you want a change. -- ___ Python tracker ___

[issue32984] IDLE: set and unset __file__ for startup files

miss-islington added the comment: New changeset fd340bf9e308130736c76257ff9a697edbeb082d by Miss Islington (bot) in branch '3.7': bpo-32984: IDLE - set __file__ for startup files (GH-5981)

[issue32999] issubclass(obj, abc.ABC) causes a segfault

Serhiy Storchaka added the comment: Is there any sense in accepting non-types as the first argument of issubclass()? I would add a check just in issubclass(). -- nosy: +inada.naoki, serhiy.storchaka versions: +Python 3.7

[issue32997] Catastrophic backtracking in fpformat

Serhiy Storchaka added the comment: Wouldn't be easier to remove '0*' from the pattern? 0s could be stripped later by .lstrip('0'). -- nosy: +serhiy.storchaka ___ Python tracker

[issue32998] regular expression regression in python 3.7

mike bayer added the comment: for those watching this would be the findall() case which is consistent between pythons: import re for reg in [ 'VARCHAR(30) COLLATE "en_US"', 'VARCHAR(30)' ]: print(re.findall(r'(?: COLLATE.*)?$', reg)) output (all

[issue33000] IDLEX GUI consumes all RAM for scrollback buffer, uses 161Bytes / character stored

New submission from John Brearley : While running a tensorflow script in the IDLEX GUI that runs for 8 million steps and produce 2 lines stdout per step, my PC used all 16GB RAM and crashed the python process, not to mention messed up other apps, like Firefox & Norton

[issue32998] regular expression regression in python 3.7

mike bayer added the comment: for now the quickest solution is to add "count=1" so that it only replaces once. -- ___ Python tracker

[issue32999] issubclass(obj, abc.ABC) causes a segfault

Alexey Izbyshev added the comment: In debug mode, the following assertion fails: python: ./Modules/_abc.c:642: _abc__abc_subclasscheck_impl: Assertion `((PyObject*)(mro))->ob_type))->tp_flags & ((1UL << 26))) != 0)' failed. --

[issue32998] regular expression regression in python 3.7

Serhiy Storchaka added the comment: In your case you can just pass 1 as the fourth parameter of re.sub(). -- ___ Python tracker

[issue32969] Add more constants to zlib module

Change by Xiang Zhang : -- keywords: +patch pull_requests: +5755 stage: -> patch review ___ Python tracker ___

[issue32999] issubclass(obj, abc.ABC) causes a segfault

New submission from Alexey Izbyshev : Demo: >>> from abc import ABC >>> issubclass(1, ABC) Segmentation fault (core dumped) The stack trace is attached. Before reimplementation of abc in C, the result was confusing too: Python 3.6.4 (v3.6.4:d48eceb, Dec 19 2017, 06:54:40)

[issue32998] regular expression regression in python 3.7

mike bayer added the comment: also, removing the "?" is not an option for me. I need the brackets to be placed prior to the "COLLATE" subsection, but unconditionally even if the "COLLATE" section is not present. Looking at the change the behavior seems wrong

[issue32998] regular expression regression in python 3.7

Serhiy Storchaka added the comment: Just see the re.sub() documentation for 3.7. There is also a note in the What's New document, in the "Changes in the Python API" section. -- ___ Python tracker

[issue32998] regular expression regression in python 3.7

mike bayer added the comment: can you point me to the documentation? -- ___ Python tracker ___

[issue32998] regular expression regression in python 3.7

Serhiy Storchaka added the comment: This is intentional change. Prior to 3.7 re.sub() didn't replace empty matches adjacent to a previous non-empty match. In 3.7 it does. Together with other changes this made all four functions that search multiple matches of the

[issue32984] IDLE: set and unset __file__ for startup files

Change by miss-islington : -- pull_requests: +5754 ___ Python tracker ___

[issue32984] IDLE: set and unset __file__ for startup files

Change by miss-islington : -- pull_requests: +5753 stage: needs patch -> patch review ___ Python tracker ___

[issue32984] IDLE: set and unset __file__ for startup files

Terry J. Reedy added the comment: New changeset 22c82be5df70c3d51e3f89b54fe1d4fb84728c1e by Terry Jan Reedy in branch 'master': bpo-32984: IDLE - set __file__ for startup files (GH-5981) https://github.com/python/cpython/commit/22c82be5df70c3d51e3f89b54fe1d4fb84728c1e

[issue26707] plistlib fails to parse bplist with 0x80 UID values

Jon Janzen added the comment: @serhiy.storchaka: I've implemented a UID wrapper class I've also updated the parser and writer classes to support the UID wrapper. The implementations for reading/writing XML UID tags match the implementations given by Apple's plutil

[issue22102] Zipfile generates Zipfile error in zip with 0 total number of disk in Zip64 end of central directory locator

Change by Francisco Facioni : -- keywords: +patch pull_requests: +5752 stage: -> patch review ___ Python tracker ___

[issue32998] regular expression regression in python 3.7

mike bayer added the comment: correction, that's fedora 26, not 27 -- ___ Python tracker ___

[issue32998] regular expression regression in python 3.7

New submission from mike bayer : demo: import re inner = 'VARCHAR(30) COLLATE "en_US"' result = re.sub( r'((?: COLLATE.*)?)$', r'FOO\1', inner ) print(inner) print(result) in all Python versions prior to 3.7: VARCHAR(30) COLLATE "en_US"

[issue32997] Catastrophic backtracking in fpformat

Change by James Davis : -- keywords: +patch pull_requests: +5750 stage: -> patch review ___ Python tracker ___

[issue31880] subprocess process interaction with IDLEX GUI causes pygnuplot silent failures

John Brearley added the comment: I retested with Python 3.6.4 upgrades and the issue no longer occurs. You may want to close this issue. -- ___ Python tracker

[issue32997] Catastrophic backtracking in fpformat

New submission from James Davis : The decoder regex used to parse numbers in the fpformat module is vulnerable to catastrophic backtracking. '^([-+]?)0*(\d*)((?:\.\d*)?)(([eE][-+]?\d+)?)$' The substructure '0*(\d*)' is quadratic. An attack string like '+0000++' blows up.

[issue31528] Let ConfigParser parse systemd units

Change by bbayles : -- nosy: +bbayles ___ Python tracker ___ ___ Python-bugs-list mailing

[issue28788] ConfigParser should be able to write config to a given filename, not only into file object

Change by bbayles : -- nosy: +bbayles ___ Python tracker ___ ___ Python-bugs-list mailing

[issue32984] IDLE: set and unset __file__ for startup files

Cheryl Sabella added the comment: The change works on Linux with the patch (and gave a NameError without the patch). I left a note on the PR for a possible SyntaxError. I didn't have authority to push the blurb markup change to your branch, so I copied it into a comment.

[issue23159] argparse: Provide equivalent of optparse.OptionParser.{option_groups, option_list, get_option}

Matej Cepl added the comment: So, this bug report could be closed, right? -- nosy: +mcepl ___ Python tracker ___

[issue28788] ConfigParser should be able to write config to a given filename, not only into file object

Change by Matej Cepl : -- nosy: +mcepl ___ Python tracker ___ ___ Python-bugs-list mailing

[issue26707] plistlib fails to parse bplist with 0x80 UID values

Serhiy Storchaka added the comment: But they use the plist format for serialization (as plists theirself use the XML format). https://github.com/apple/swift-corelibs-foundation/blob/master/Foundation/NSKeyedArchiver.swift Direct support of keyed archives would be

[issue1322] Deprecate platform.dist() and platform.linux_distribution() functions

Change by Matej Cepl : -- nosy: +mcepl ___ Python tracker ___ ___ Python-bugs-list mailing

[issue31528] Let ConfigParser parse systemd units

Change by Serhiy Storchaka : -- nosy: +lukasz.langa versions: +Python 3.8 -Python 3.7 ___ Python tracker ___

[issue28955] Not matched behavior of numeric comparison with the documentation

Change by Serhiy Storchaka : -- nosy: +mark.dickinson ___ Python tracker ___

[issue30760] configparse module in python3 can not write '%' to config file

Matej Cepl added the comment: Lukasz, this bug could be closed, couldn't it? -- nosy: +mcepl ___ Python tracker ___

[issue32917] ConfigParser writes a superfluous final blank line

Serhiy Storchaka added the comment: Adding two new parameters to control so tiny detail of the output looks excessive to me. What if just change the default behavior and never output a final blank line? -- nosy: +lukasz.langa, serhiy.storchaka

[issue29623] configparser.ConfigParser.read() does not accept Pathlib path as a single argument.

Change by Matej Cepl : -- nosy: +mcepl ___ Python tracker ___ ___ Python-bugs-list mailing

[issue1410680] Add 'surgical editing' to ConfigParser

Change by Matej Cepl : -- nosy: +mcepl ___ Python tracker ___ ___ Python-bugs-list mailing

[issue31528] Let ConfigParser parse systemd units

Change by Matej Cepl : -- nosy: +mcepl ___ Python tracker ___ ___ Python-bugs-list mailing

[issue32996] Improve What's New in 3.7

Change by Serhiy Storchaka : -- keywords: +patch pull_requests: +5749 stage: -> patch review ___ Python tracker ___

[issue32996] Improve What's New in 3.7

New submission from Serhiy Storchaka : The following PR fixes and improves formatting in the "What's New in Python 3.7" document, adds links to issues and authors names. This is just one step. Somebody need to review NEWS entries and adds corresponding What's New

[issue32917] ConfigParser writes a superfluous final blank line

Change by Matej Cepl : -- nosy: +mcepl ___ Python tracker ___ ___ Python-bugs-list mailing

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