[issue34615] subprocess.call wrong exit code

[Kay Hayen]

Kay Hayen  added the comment:

So I was confused indeed. 

Actually I am observing in other tests at least, that apparently Nuitka 
compiled execution in my tests can import _testcapi module, which normal 
execution of the test does not manage. 

Then there is the possibility that the exit code is indeed "0" and different.

The failure to import that module is old, and something I consider to raise as 
a separate issue. Closing this one as it's not worthy.

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[issue32490] subprocess: duplicate filename in exception message

[Zackery Spytz]

Change by Zackery Spytz :


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versions: +Python 3.6, Python 3.7, Python 3.8

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[issue34624] -W option does not accept module regexes

[Karthikeyan Singaravelan]

Change by Karthikeyan Singaravelan :


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[issue34624] -W option does not accept module regexes

[Karthikeyan Singaravelan]

Karthikeyan Singaravelan  added the comment:

The original escape was done with 2a862c614d6d3ff50dc644150670651fdc9f3a99 
which was in 2000. The doc example you are referring to at [1] was added with 
https://bugs.python.org/issue31975 and there doesn't seem to be a test 
involving regular expression as I can see from the PR. Adding Nick to the issue 
since he had committed the doc and might help here.


[1] https://docs.python.org/3/library/warnings.html#describing-warning-filters

Thanks

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[issue11192] test_socket error on AIX

[Michael Felt]

Change by Michael Felt :


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type:  -> behavior
versions: +Python 3.8 -Python 3.7

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[issue32270] subprocess closes redirected fds even if they are in pass_fds

[Gregory P. Smith]

Gregory P. Smith  added the comment:


New changeset 2173bb818c6c726d831b106ed0d3fad7825905dc by Gregory P. Smith 
(Miss Islington (bot)) in branch '3.6':
bpo-32270: Don't close stdin/out/err in pass_fds (GH-6242) (GH-9149)
https://github.com/python/cpython/commit/2173bb818c6c726d831b106ed0d3fad7825905dc


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[issue32490] subprocess: duplicate filename in exception message

[Zackery Spytz]

Change by Zackery Spytz :


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[issue23855] Missing Sanity Check for malloc() in PC/_msi.c

[Zackery Spytz]

Change by Zackery Spytz :


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[issue30238] 2to3 doesn't detect or fix Exception indexing

[Karthikeyan Singaravelan]

Change by Karthikeyan Singaravelan :


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[issue34315] Regex not evalauated correctly

[hongweipeng]

hongweipeng  added the comment:

In my test in win2012r2, it works well. Add a screenshot.

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Added file: https://bugs.python.org/file47794/win12r2py3.7.png

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[issue34605] Avoid master/slave terminology

[Guido van Rossum]

Guido van Rossum  added the comment:

I'm closing this now. Three out of four of Victor's PRs have been merged. The 
fourth one should not be merged because it reflects the underlying terminology 
of UNIX ptys. There's a remaining quibble about "pliant children" -> "helpers" 
but that can be dealt with as a follow-up PR without keeping this discussion 
open.

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stage: patch review -> resolved
status: open -> closed

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[issue34627] Python incorrect execution order

[badrussians]

New submission from badrussians :

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
print('');
import sys, os, subprocess, re, ctypes, tempfile, shutil, tarfile, 
urllib.request;
argsCount=len(sys.argv);
scriptDir = os.path.dirname(os.path.abspath(sys.argv[0]));


def FindFullPaths(strPattern, *orderedSearchDirs, \
  findFile=True, findDir=False, \
  ignoreCase=False, returnFirst=True):
print('#  FindFullPaths__In');
result = [];
def resultAppendUnique(item):
if item not in result:
result.append(item);
pattern = re.compile(strPattern, \
re.IGNORECASE | re.DOTALL if ignoreCase else re.DOTALL);
isFound = False;
for searchDir in orderedSearchDirs:
print('#searchDir', searchDir, orderedSearchDirs, '\n');
for leafName in os.listdir(searchDir):
leafPath = os.path.join(searchDir, leafName);
isDir = os.path.isdir(leafPath);
isFound = (findDir and isDir or \
   findFile and 
os.path.isfile(leafPath)) \
and pattern.search(leafName) is 
not None;
print('#leafPath:', leafPath, '\n'); #ERROR = output 
Last AND last time - no in output!
print('#isFound:', isFound); #ERROR = output 
First AND first time - no in output!
if isFound:
resultAppendUnique(leafPath);
if isDir and not (returnFirst and isFound):
for partLeafPath in FindFullPaths(strPattern, 
leafPath, \
findFile=findFile, 
findDir=findDir, \
ignoreCase=ignoreCase, 
returnFirst=returnFirst):
resultAppendUnique(partLeafPath);
isFound = True;
if returnFirst and isFound:
break;
if returnFirst and isFound:
break;
print('#  FindFullPaths__Return');
return result; 

FindFullPaths('^bat$', '/home/user/Рабочий стол/ttt');
print(sys.version);

 OUTPUT: 
'/home/user/Рабочий стол/test2.py' 

#  FindFullPaths__In
#searchDir /home/user/Рабочий стол/ttt ('/home/user/Рабочий стол/ttt',) 

#leafPath: /home/user/Рабочий стол/ttt/BackupRestore.py 

#isFound: False
#leafPath: /home/user/Рабочий стол/ttt/temp.py 

#isFound: False
#leafPath: /home/user/Рабочий стол/ttt/Create ISO.py 

#isFound: False
#  FindFullPaths__Return
3.6.5 (default, Apr  1 2018, 05:46:30) 
[GCC 7.3.0]
## Environment ##
Russian Ubuntu 18.04.1 and Kali 2018.3
PS: Ru:'/home/user/Рабочий стол' == Eng'/home/user/Desktop'

--
components: Interpreter Core
files: test2.py
messages: 324996
nosy: badrussians
priority: normal
severity: normal
status: open
title: Python incorrect execution order
type: behavior
versions: Python 3.6
Added file: https://bugs.python.org/file47795/test2.py

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[issue31577] crash in os.utime() in case of a bad ns argument

[Karthikeyan Singaravelan]

Change by Karthikeyan Singaravelan :


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[issue34627] Python incorrect execution order

[Karthikeyan Singaravelan]

Karthikeyan Singaravelan  added the comment:

Can you please describe the problem and the output you are expecting so that we 
can determine if it's a bug in Python or the logic of the code which will get 
better help from sites stackoverflow ? It will be helpful if you can do `tree` 
on the search directory if it's small so that it will be helpful to replicate 
the structure for test too.

Please consider using 4 space instead of tabs as per PEP8 and semicolon is not 
needed at the end of statements. A little cleaned up version of the same 
program.

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
print('')
import sys, os, subprocess, re, ctypes, tempfile, shutil, tarfile, 
urllib.request
argsCount=len(sys.argv)
scriptDir = os.path.dirname(os.path.abspath(sys.argv[0]))


def FindFullPaths(strPattern, *orderedSearchDirs, \
  findFile=True, findDir=False, \
  ignoreCase=False, returnFirst=True):
print('#  FindFullPaths__In')
result = []

def resultAppendUnique(item):
if item not in result:
result.append(item)

pattern = re.compile(strPattern, \
 re.IGNORECASE | re.DOTALL if ignoreCase else re.DOTALL)
isFound = False
for searchDir in orderedSearchDirs:
print('#searchDir', searchDir, orderedSearchDirs, '\n')
for leafName in os.listdir(searchDir):
leafPath = os.path.join(searchDir, leafName)
isDir = os.path.isdir(leafPath)
isFound = (findDir and isDir or \
   findFile and os.path.isfile(leafPath)) \
   and pattern.search(leafName) is not None
print('#leafPath:', leafPath, '\n') #ERROR = output Last AND last 
time - no in output!
print('#isFound:', isFound) #ERROR = output First AND first time - 
no in output!
if isFound:
resultAppendUnique(leafPath)
if isDir and not (returnFirst and isFound):
for partLeafPath in FindFullPaths(strPattern, leafPath, \
  findFile=findFile, 
findDir=findDir, \
  ignoreCase=ignoreCase, 
returnFirst=returnFirst):
resultAppendUnique(partLeafPath)
isFound = True;
if returnFirst and isFound:
break;
if returnFirst and isFound:
break;
print('#  FindFullPaths__Return')
return result

FindFullPaths('^bat$', '/tmp/')
print(sys.version)



Thanks

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[issue26832] ProactorEventLoop doesn't support stdin/stdout nor files with connect_read_pipe/connect_write_pipe

[Martijn Pieters]

Martijn Pieters  added the comment:

I'm trying to figure out why Windows won't let us do this. I think the reason 
is that sys.std(in|out) filehandles are not opened as pipes, and do not have 
the required OVERLAPPED flag set (see the CreateIoCompletionPort documentation 
at 
https://docs.microsoft.com/en-us/windows/desktop/fileio/createiocompletionport; 
it's that function that is used to handle pipes (via IocpProactor.recv -> 
IocpProactor._register_with_iocp -> overlapped.CreateIoCompletionPort).

The solution then would be to create a pipe for a stdio filehandle with the 
flag set.

And that's where my Windows-fu ends, and where I lack the VM and motivation to 
go try that out.

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[issue31535] configparser unable to write comment with a upper cas letter

[Karthikeyan Singaravelan]

Karthikeyan Singaravelan  added the comment:

Ah sorry, didn't notice it was about comments. It seems config.optionxform = 
str has no effect on comments.

Thanks

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[issue31535] configparser unable to write comment with a upper cas letter

[Karthikeyan Singaravelan]

Karthikeyan Singaravelan  added the comment:

All config options are converted to lowercase when they are stored. You can 
customise this with 
https://docs.python.org/3/library/configparser.html#configparser.ConfigParser.optionxform.
 You can customize it more with 
https://docs.python.org/3/library/configparser.html#customizing-parser-behaviour

>  Note also that keys in sections are case-insensitive and stored in lowercase 

>>> from configparser import ConfigParser
>>> c = ConfigParser()
>>> c["A"] = {'FOO': 'bar'}
>>> with open('example.ini', 'w') as configfile: c.write(configfile)
...
>>> with open('example.ini', 'r') as configfile: print(configfile.read())
...
[A]
foo = bar


# Don't convert to lower case

>>> d = ConfigParser()
>>> d.optionxform = str
>>> d["A"] = {'FOO': 'bar'}
>>> with open('example_case.ini', 'w') as configfile: d.write(configfile)
...
>>> with open('example_case.ini', 'r') as configfile: print(configfile.read())
...
[A]
FOO = bar


Hope this answers your question. Feel free to close this if it's clear.

Thanks

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[issue34627] Python incorrect execution order

[badrussians]

badrussians  added the comment:

Big Sorry - it is my mistake. In terminal I execute same file, but in other 
location.

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[issue31535] configparser unable to write comment with a upper cas letter

[Karthikeyan Singaravelan]

Change by Karthikeyan Singaravelan :


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[issue34553] Python Crashes when trying to access any date related fields in MailItem

[Vijay]

Vijay  added the comment:

can someone please clarify, is it a pywin32 issue or python3.7 issue?.

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[issue21314] Document '/' in signatures

[Berker Peksag]

Berker Peksag  added the comment:

Welcome, Noah! Feel free to work on this issue, but please note that there is 
no consensus on the best place to document / signatures, so you may need to 
move your changes between locations (e.g. from Doc/faq/programming.rst to 
Doc/gloassary.rst) before we merge your work.

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[issue31535] configparser unable to write comment with a upper cas letter

[Karthikeyan Singaravelan]

Karthikeyan Singaravelan  added the comment:

Ah my bad again. The config.optionxform = str does the trick. I was using an 
older object.

from configparser import ConfigParser

config = ConfigParser(allow_no_value=True)
config.optionxform = str
config.add_section('default_settings')
config.set('default_settings', '; comment HERE')

with open('example_case.ini', 'w') as configfile: config.write(configfile)
with open('example_case.ini', 'r') as configfile: print(configfile.read())


Thanks

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[issue34633] Simplify __reduce__ for ordered dict iterators

[Pablo Galindo Salgado]

Change by Pablo Galindo Salgado :


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[issue31903] `_scproxy` calls SystemConfiguration functions in a way that can cause deadlocks

[Benjamin Peterson]

Benjamin Peterson  added the comment:


New changeset 4859ba0d2ce4506fddc3f55f90f8dce031b3804f by Benjamin Peterson 
(Max Bélanger) in branch 'master':
closes bpo-31903: Release the GIL when calling into SystemConfiguration 
(GH-4178)
https://github.com/python/cpython/commit/4859ba0d2ce4506fddc3f55f90f8dce031b3804f


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stage: patch review -> resolved
status: open -> closed

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[issue34589] Py_Initialize() and Py_Main() should not enable C locale coercion

[STINNER Victor]

STINNER Victor  added the comment:

> (...) the locale should be coerced before *ANY* calls are made to 
> Py_DecodeLocale, as the whole point of the architecture of the PEP 
> implementation was to ensure that *nothing ever gets decoded incorrectly in 
> the first place*.

See my comment:
https://github.com/python/cpython/pull/9073#issuecomment-420461537

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[issue34605] Avoid master/slave terminology

[miss-islington]

miss-islington  added the comment:


New changeset fa7dfae3171914f91d629a64c6e829788b485b06 by Miss Islington (bot) 
(Victor Stinner) in branch 'master':
bpo-34605: Replace "pliant children" with "helpers" (GH-9195)
https://github.com/python/cpython/commit/fa7dfae3171914f91d629a64c6e829788b485b06


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[issue34536] Enum._missing_ doesn't raise TypeError when a non-Enum object is a returned

[Ethan Furman]

Change by Ethan Furman :


--
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pull_requests: +8636
stage:  -> patch review

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[issue31903] `_scproxy` calls SystemConfiguration functions in a way that can cause deadlocks

[Ned Deily]

Ned Deily  added the comment:

Thanks, Benjamin!

Ronald, do you think this should be backported?

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[issue1621] Do not assume signed integer overflow behavior

[Jeffrey Walton]

Jeffrey Walton  added the comment:

On Tue, Sep 11, 2018 at 8:26 PM, STINNER Victor  wrote:
>
> STINNER Victor  added the comment:
>
>> newsize <<= 1; // The largest possible value is PY_SSIZE_T_MAX + 1.
>
> Previously, there was a explicitly check for error raising  PyErr_NoMemory() 
> on overflow. Now you rely on PyMem_Malloc() to detect the overflow. I'm not 
> sure that it's a good idea.

+1. It will probably work as expected on Solaris and other OSes that
don't oversubscribe memory. It will probably fail in unexpected ways
on Linux when the allocation succeeds but then the OOM killer hits a
random process.

Jeff

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[issue34642] time.ctime() uses %3d instead of %.2d to format.

[William Chaseling]

New submission from William Chaseling :

time.ctime() returns _asctime from a C module.
_asctime returns a PyUnicode_FromFormat() result using "%s %s%3d %.2d:%.2d:%.2d 
%d" as the string formatter.

This works: 'Wed Sep 12 22:30:00 2018'
Except when day <10, because it uses %3d instead of %.2d
'Wed Sep  2 22:30:00 2018'

This seems like it might be intended behavior for some reason, but I don't see 
the reason.

--
components: Library (Lib)
messages: 325114
nosy: William Chaseling
priority: normal
severity: normal
status: open
title: time.ctime() uses %3d instead of %.2d to format.
type: behavior
versions: Python 3.7

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[issue34643] How to build Release Version of Python in Windows?

[Valentin Zhao]

Valentin Zhao  added the comment:

Sorry I posted a wrong pic.

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Added file: https://bugs.python.org/file47798/build前.png

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[issue31902] Fix col_offset for ast nodes: AsyncFor, AsyncFunctionDef, AsyncWith

[miss-islington]

New submission from miss-islington :


New changeset 90fc8980bbcc5c7dcced3627fe172b0bfd193a3b by Miss Islington (bot) 
(guoci) in branch 'master':
closes bpo-31902: Fix the col_offset attribute for ast.Async* nodes to point to 
the "async" keyword. (GH-4175)
https://github.com/python/cpython/commit/90fc8980bbcc5c7dcced3627fe172b0bfd193a3b


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status: open -> closed

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[issue32055] Reconsider comparison chaining for containment tests

[Guido van Rossum]

Guido van Rossum  added the comment:

I agree that it would be less confusing if `in`/`not in` did not allow 
chaining, the occasional (surely very rare) useful example notwithstanding.

Then again if we're going to forbid (or even discourage) unusual combinations 
we might also want to frown at `a < b > c` -- surely in mathematical circles 
the chaining always goes in one direction only, e.g. `a < b <= c` or `a >= b 
==c > d`.

Finally as long as we're refining the terminology, maybe we could strive to 
distinguish "comparison" (`==` and `!=`) from "ordering" (`<`, `<=`, `>`, `>=`)?

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[issue26832] ProactorEventLoop doesn't support stdin/stdout nor files with connect_read_pipe/connect_write_pipe

[Guido van Rossum]

Change by Guido van Rossum :


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[issue32236] open() shouldn't silently ignore buffering=1 in binary mode

[Alexey Izbyshev]

Alexey Izbyshev  added the comment:

Thank you, Gregory. I didn't intend to add the warning to stable branches -- 
it's just that 3.7 hasn't been released yet when this report was submitted.

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[issue34536] Enum._missing_ doesn't raise TypeError when a non-Enum object is a returned

[Ethan Furman]

Change by Ethan Furman :


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pull_requests: +8636, 8637, 8638
stage:  -> patch review

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[issue34536] Enum._missing_ doesn't raise TypeError when a non-Enum object is a returned

[Ethan Furman]

Change by Ethan Furman :


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pull_requests: +8636, 8637
stage:  -> patch review

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[issue34640] remove the configure check TANH_PRESERVES_ZERO_SIGN

[Benjamin Peterson]

New submission from Benjamin Peterson :

configure.ac currently has to check for a bug in FreeBSD 6.2:

# On FreeBSD 6.2, it appears that tanh(-0.) returns 0. instead of
# -0. on some architectures.
AC_MSG_CHECKING(whether tanh preserves the sign of zero)
...

FreeBSD 6.2 is nearing 12 years old. It looks like the FreeBSD 10 bot is 
passing this check. So, I think we should remove this configure check.

--
messages: 325106
nosy: benjamin.peterson, mark.dickinson
priority: normal
severity: normal
status: open
title: remove the configure check TANH_PRESERVES_ZERO_SIGN

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[issue1621] Do not assume signed integer overflow behavior

[STINNER Victor]

STINNER Victor  added the comment:

> newsize <<= 1; // The largest possible value is PY_SSIZE_T_MAX + 1. 

Previously, there was a explicitly check for error raising  PyErr_NoMemory() on 
overflow. Now you rely on PyMem_Malloc() to detect the overflow. I'm not sure 
that it's a good idea.

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[issue34405] Upgrade to OpenSSL 1.1.0i / 1.0.2p

[miss-islington]

miss-islington  added the comment:


New changeset e351fe241c1fcb8cd739b08e21d2bb2f2b4c8c89 by Miss Islington (bot) 
(Steve Dower) in branch '2.7':
[2.7] bpo-34405: Updated to OpenSSL 1.0.2p for Windows builds. (GH-8776) 
(GH-9202)
https://github.com/python/cpython/commit/e351fe241c1fcb8cd739b08e21d2bb2f2b4c8c89


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[issue34642] time.ctime() uses %3d instead of %.2d to format.

[William Chaseling]

William Chaseling  added the comment:

It's easy to get around using .replace('  ', ' '), but it's still a bit 
annoying.

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[issue34642] time.ctime() uses %3d instead of %.2d to format.

[Martin Panter]

Martin Panter  added the comment:

I think "ctime" and "asctime" are supposed to wrap or imitate the standard C 
functions: , so I think this 
is intended behaviour. But see Issue 13927 about improving the documentation.

For a single-digit day of the month, there is supposed to be two spaces. Using 
"%.2d" would produce "Sep02" or "Sep 02", with a leading zero. On the other 
hand, changing the double space to a single space would produce "Sep 2", 
without a leading zero.

--
nosy: +martin.panter
resolution:  -> not a bug
stage:  -> resolved
status: open -> closed
superseder:  -> Extra spaces in the output of time.ctime

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[issue20180] Derby #11: Convert 50 sites to Argument Clinic across 9 files

[Raymond Hettinger]

Raymond Hettinger  added the comment:


New changeset c4bccd3c7617018b1ce16f95840ffe1a890d44df by Raymond Hettinger 
(Tal Einat) in branch 'master':
bpo-20180: convert most of itertoolsmodule.c to use Argument Clinic (GH-9164)
https://github.com/python/cpython/commit/c4bccd3c7617018b1ce16f95840ffe1a890d44df


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[issue33714] module can set an exception in tp_clear

[Petr Viktorin]

Petr Viktorin  added the comment:

I'm not sure what tp_clear should do in this situation.
Other than propagating the exception to the GC, the most reasonable behavior 
seems to be to write the exception to stderr and ignore it -- but I think 
having the GC do that would be more robust.

IOW, I think raising an exception from tp_clear is reasonable, and if that 
caused (causes?) a crash, it's a bug.

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[issue34405] Upgrade to OpenSSL 1.1.0i / 1.0.2p

[Ned Deily]

Ned Deily  added the comment:


New changeset 31912b43c903aafad09350899ed6a9dec7c43421 by Ned Deily in branch 
'3.6':
bpo-34405: Update to OpenSSL 1.0.2p for macOS installer builds (GH-9191)
https://github.com/python/cpython/commit/31912b43c903aafad09350899ed6a9dec7c43421


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[issue34405] Upgrade to OpenSSL 1.1.0i / 1.0.2p

[miss-islington]

Change by miss-islington :


--
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[issue34637] Make *start* usable as a keyword argument for sum().

[Raymond Hettinger]

Change by Raymond Hettinger :


--
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pull_requests: +8642
stage:  -> patch review

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[issue25041] document AF_PACKET socket address format

[Benjamin Peterson]

Change by Benjamin Peterson :


--
pull_requests: +8643

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[issue34641] Curiosity: f((a)=1) is not a syntax error -- why?

[Benjamin Peterson]

Benjamin Peterson  added the comment:

I expect you'd have to make the check of test nodes in ast.c stricter. Here's a 
slightly gross implementation of that:

diff --git a/Python/ast.c b/Python/ast.c
index 94962e00c7..b7cebf4777 100644
--- a/Python/ast.c
+++ b/Python/ast.c
@@ -2815,15 +2815,22 @@ ast_for_call(struct compiling *c, const node *n, 
expr_ty func, bool allowgen)
 identifier key, tmp;
 int k;
 
-/* chch is test, but must be an identifier? */
-e = ast_for_expr(c, chch);
-if (!e)
+static const int chain[] = {test, or_test, and_test, not_test, 
comparison, expr, xor_expr, and_expr, shift_expr, arith_expr, term, factor, 
power, atom_expr, atom, 0};
+
+node *expr_node = chch;
+for (int i = 0; chain[i]; i++) {
+if (TYPE(expr_node) != chain[i])
+break;
+if (NCH(expr_node) != 1)
+break;
+expr_node = CHILD(expr_node, 0);
+}
+if (TYPE(expr_node) != NAME) {
+ast_error(c, chch,
+"keyword can't be an expression");
 return NULL;
-/* f(lambda x: x[0] = 3) ends up getting parsed with
- * LHS test = lambda x: x[0], and RHS test = 3.
- * SF bug 132313 points out that complaining about a keyword
- * then is very confusing.
- */
+}
+e = ast_for_expr(c, chch);
 if (e->kind == Lambda_kind) {
 ast_error(c, chch,
 "lambda cannot contain assignment");

--
nosy: +benjamin.peterson

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[issue34595] PyUnicode_FromFormat(): add %T format for an object type name

[STINNER Victor]

STINNER Victor  added the comment:

Petr Viktorin asked me to open a wider discussion about this issue on 
python-dev. I just reverted my first change and posted:
https://mail.python.org/pipermail/python-dev/2018-September/155150.html

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[issue34595] PyUnicode_FromFormat(): add %T format for an object type name

[STINNER Victor]

STINNER Victor  added the comment:


New changeset 998b80636690ffbdb0a278810d9c031fad38631d by Victor Stinner in 
branch 'master':
Revert "bpo-34595: Add %T format to PyUnicode_FromFormatV() (GH-9080)" (GH-9187)
https://github.com/python/cpython/commit/998b80636690ffbdb0a278810d9c031fad38631d


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[issue34605] Avoid master/slave terminology

[STINNER Victor]

Change by STINNER Victor :


--
pull_requests: +8631

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[issue34589] Py_Initialize() and Py_Main() should not enable C locale coercion

[STINNER Victor]

STINNER Victor  added the comment:

Example of C locale coercion with Python 3.7:

$ env -i PYTHONCOERCECLOCALE=0 ./python -X utf8=0 -c 'import sys; 
print(ascii(sys.argv[1]))' 'hé'
'h\udcc3\udca9'

$ env -i PYTHONCOERCECLOCALE=1 ./python -X utf8=0 -c 'import sys; 
print(ascii(sys.argv[1]))' 'hé'
'h\xe9'

It works as expected no? What's wrong with the current implementation according 
to you, Nick?

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[issue34636] re module microoptimization: speed up bytes \w \s \d matching

[miss-islington]

miss-islington  added the comment:


New changeset ec014a101a7f6243b95dfc08acfe1542b9fa5d39 by Miss Islington (bot) 
(Sergey Fedoseev) in branch 'master':
bpo-34636: Use fast path for more chars in SRE category macros. (GH-9170)
https://github.com/python/cpython/commit/ec014a101a7f6243b95dfc08acfe1542b9fa5d39


--
nosy: +miss-islington

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[issue30576] http.server should support HTTP compression (gzip)

[Brett Cannon]

Brett Cannon  added the comment:

I'm agreeing with all the other core devs (other than Victor ;) that I don't 
quite think this should go in. While I appreciate the work Pierre put into the 
PR, I just can't find myself to want to deal with future bug reports for this 
while http.server is meant for really simple testing scenarios.

My suggestion would be to toss it up on PyPI and if there is major uptake then 
we can revisit this, but right now I just don't think the long-term support 
costs are worth the benefit the new feature brings.

--
nosy: +brett.cannon
stage:  -> resolved
status: open -> closed

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[issue1621] Do not assume signed integer overflow behavior

[miss-islington]

Change by miss-islington :


--
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[issue1621] Do not assume signed integer overflow behavior

[miss-islington]

miss-islington  added the comment:


New changeset 6c7d67ce83a62b5f0fe5c53a6df602827451bf7f by Miss Islington (bot) 
(Sergey Fedoseev) in branch 'master':
bpo-1621: Avoid signed integer overflow in set_table_resize(). (GH-9059)
https://github.com/python/cpython/commit/6c7d67ce83a62b5f0fe5c53a6df602827451bf7f


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[issue1621] Do not assume signed integer overflow behavior

[miss-islington]

Change by miss-islington :


--
pull_requests: +8633

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[issue34636] re module microoptimization: speed up bytes \w \s \d matching

[Gregory P. Smith]

Change by Gregory P. Smith :


--
resolution:  -> fixed
stage:  -> commit review
status: open -> closed

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[issue34640] remove the configure check TANH_PRESERVES_ZERO_SIGN

[Benjamin Peterson]

Change by Benjamin Peterson :


--
keywords: +patch
pull_requests: +8640
stage:  -> patch review

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[issue34405] Upgrade to OpenSSL 1.1.0i / 1.0.2p

[Ned Deily]

Change by Ned Deily :


--
resolution:  -> fixed
stage: patch review -> resolved
status: open -> closed

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[issue25041] document AF_PACKET socket address format

[Benjamin Peterson]

Benjamin Peterson  added the comment:


New changeset cadb66e173ded86ebc85b54889db48f66e7af592 by Benjamin Peterson in 
branch '3.7':
[3.7] closes bpo-25041: Document AF_PACKET socket address format. (GH-9207)
https://github.com/python/cpython/commit/cadb66e173ded86ebc85b54889db48f66e7af592


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[issue1621] Do not assume signed integer overflow behavior

[Sergey Fedoseev]

Sergey Fedoseev  added the comment:

> Now you rely on PyMem_Malloc() to detect the overflow.

Now overflow is not possible or am I missing something?

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[issue34643] How to build Release Version of Python in Windows?

[Valentin Zhao]

New submission from Valentin Zhao :

I am going to build a Python.exe to migrate it to another PC, in order to build 
a seemingly virtual *environment* of Python which could run python files. What 
I do to implement this is to *COPY* \win32 folder to another pc then execute 
python.exe with specific python file path tagged along.

For now, it works well, however, I met with a strange problem that I cannot 
find *tcl* under current file hierarchy and this library is generated very 
deeply so I have to extract it to the root directory manually. 

Surprisingly, I found that I can directly *COPY* all the folders generated by 
*msi installer* to another pc then use it. Nevertheless, I fret about there 
could be some registration thing during installation.

So how could I compile the source and make it generate folder hierarchy like 
the release version(like the snapshot I attached below)? I have read README.md 
in the \PCBuild yet it helps little.

--
components: Windows
files: build后结构.png
messages: 325116
nosy: Valentin Zhao, paul.moore, steve.dower, tim.golden, zach.ware
priority: normal
severity: normal
status: open
title: How to build Release Version of Python in Windows?
type: compile error
versions: Python 3.6
Added file: https://bugs.python.org/file47797/build后结构.png

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[issue34641] Curiosity: f((a)=1) is not a syntax error -- why?

[Serhiy Storchaka]

Change by Serhiy Storchaka :


--
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[issue34405] Upgrade to OpenSSL 1.1.0i / 1.0.2p

[Ned Deily]

Change by Ned Deily :


--
pull_requests: +8629

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[issue31902] Fix col_offset for ast nodes: AsyncFor, AsyncFunctionDef, AsyncWith

[miss-islington]

miss-islington  added the comment:


New changeset d8bc7a666b1309aa5669980e35e7429071f3f7d3 by Miss Islington (bot) 
in branch '3.7':
closes bpo-31902: Fix the col_offset attribute for ast.Async* nodes to point to 
the "async" keyword. (GH-4175)
https://github.com/python/cpython/commit/d8bc7a666b1309aa5669980e35e7429071f3f7d3


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[issue34589] Py_Initialize() and Py_Main() should not enable C locale coercion

[STINNER Victor]

STINNER Victor  added the comment:

> (...) The documentation could definitely be much clearer on that point 
> though, as even in the PEP it's only implied by the final paragraph in 
> https://www.python.org/dev/peps/pep-0538/#legacy-c-locale-coercion-in-the-standalone-python-interpreter-binary
>  which is mostly talking about the fact that this particular environment 
> variable is still checked, even if you pass the -I or -E command line options.

That's a separated issue: I created bpo-34639.

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[issue34639] PYTHONCOERCECLOCALE is ignored when using -E or -I option

[STINNER Victor]

New submission from STINNER Victor :

I modified Py_Main() to ignore the PYTHONCOERCECLOCALE environment variable if 
-E or -I command line option is used. But Nick asks to always read 
PYTHONCOERCECLOCALE.

We should either update the PEP or change the code.

I am not sure why PYTHONCOERCECLOCALE should be handled differently than other 
PYTHON* variable like PYTHONWARNINGS or PYTHONUTF8. Is it because it impacts 
the encodings? Is it because there was a chicken-and-egg issue before I 
reworked Py_Main() code? (PYTHONCOERCECLOCALE env var was read before reading 
command line arguments.)

--

Copy of Nick Coghlan's msg325009:

(The one exception to "nothing gets decoded incorrectly" is that 
PYTHONCOERCECLOCALE itself is always interpreted as an ASCII field: the values 
that it checks for are actually ASCII byte sequences, not Unicode code points.

The documentation could definitely be much clearer on that point though, as 
even in the PEP it's only implied by the final paragraph in 
https://www.python.org/dev/peps/pep-0538/#legacy-c-locale-coercion-in-the-standalone-python-interpreter-binary
 which is mostly talking about the fact that this particular environment 
variable is still checked, even if you pass the -I or -E command line options.

--
components: Interpreter Core
messages: 325096
nosy: vstinner
priority: normal
severity: normal
status: open
title: PYTHONCOERCECLOCALE is ignored when using -E or -I option
versions: Python 3.7, Python 3.8

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[issue34638] Avoid circular references in asyncio streams

[Andrew Svetlov]

Change by Andrew Svetlov :


--
keywords: +patch
pull_requests: +8635
stage:  -> patch review

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[issue34637] Make *start* usable as a keyword argument for sum().

[Steve Dower]

Steve Dower  added the comment:

Woo! Thanks Raymond!

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[issue24412] setUpClass equivalent for addCleanup

[Lisa Roach]

Change by Lisa Roach :


--
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stage: needs patch -> patch review

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[issue33649] asyncio docs overhaul

[Yury Selivanov]

Change by Yury Selivanov :


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[issue26832] ProactorEventLoop doesn't support stdin/stdout nor files with connect_read_pipe/connect_write_pipe

[STINNER Victor]

Change by STINNER Victor :


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[issue32270] subprocess closes redirected fds even if they are in pass_fds

[Alexey Izbyshev]

Alexey Izbyshev  added the comment:

Thank you, Gregory!

--
resolution:  -> fixed
stage: patch review -> resolved
status: open -> closed

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[issue34637] Make *start* usable as a keyword argument for sum().

[Raymond Hettinger]

New submission from Raymond Hettinger :

Currently, we can write:

>>> sum(range(10), 50)
95

What we want to allow:

>>> sum(range(10), start=50)
95

The positional form would still be allowed.

--
assignee: rhettinger
components: Library (Lib)
messages: 325092
nosy: rhettinger
priority: normal
severity: normal
status: open
title: Make *start* usable as a keyword argument for sum().
type: enhancement
versions: Python 3.8

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[issue34638] Avoid circular references in asyncio streams

[Andrew Svetlov]

New submission from Andrew Svetlov :

Now we have a cross-reference between asyncio stream reader and protocol.

It prevents objects deletion on ref-counting and requires a garbage collector 
run to destroy the stream.

--
components: asyncio
messages: 325095
nosy: asvetlov, yselivanov
priority: normal
severity: normal
status: open
title: Avoid circular references in asyncio streams
versions: Python 3.8

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[issue34641] Curiosity: f((a)=1) is not a syntax error -- why?

[Guido van Rossum]

New submission from Guido van Rossum :

Emily and I just discovered that f((a)=1) is accepted and compiled the same as 
f(a=1). This goes against the intention that keyword arguments have the syntax 
f(NAME=expr).

I suspect that this behavior was introduced at the time we switched from 
generating from the (concrete) parse tree to first converting to an ast and 
then generating code from there. I.e. in the distant past (long before 2.7 
even).

But I still think it ought to be fixed. Thoughts? Anyone have an idea *where* 
to fix it?

--
messages: 325107
nosy: emilyemorehouse, gvanrossum
priority: normal
severity: normal
status: open
title: Curiosity: f((a)=1) is not a syntax error -- why?
versions: Python 3.8

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[issue25041] document AF_PACKET socket address format

[Benjamin Peterson]

Benjamin Peterson  added the comment:


New changeset 731ff68eeef58babdf2b32dc9a73b141760c2be9 by Benjamin Peterson 
(Cheryl Sabella) in branch 'master':
closes bpo-25041: Document AF_PACKET socket address format. (GH-4092)
https://github.com/python/cpython/commit/731ff68eeef58babdf2b32dc9a73b141760c2be9


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status: open -> closed

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[issue34641] Curiosity: f((a)=1) is not a syntax error -- why?

[Karthikeyan Singaravelan]

Change by Karthikeyan Singaravelan :


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[issue34606] Unable to read zip file with extra

[Vladimir Matveev]

Vladimir Matveev  added the comment:

In this particular case looks like a crux of the problem was in the fact that 
compression encodes extra fields only if either zip64 is set or length of the 
field is larger than threshold but decompression always tries to decode it. 
Attached PR switches decoding to be conditioned on the presence of zip64 end of 
central directory record.

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[issue34637] Make *start* usable as a keyword argument for sum().

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:

Is not this a duplicate of issue31141?

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[issue34636] re module microoptimization: speed up bytes \w \s \d matching

[Gregory P. Smith]

Gregory P. Smith  added the comment:

Confirming the microoptimization here with a non-debug (opt) build:

~/oss/cpython$ sre-before/python -m timeit -s "import re; s = (b'~' * 100); 
f = re.compile(b'\s\w\d').search" "f(s)"
20 loops, best of 5: 11 msec per loop
~/oss/cpython$ sre-after/python -m timeit -s "import re; s = (b'~' * 100); 
f = re.compile(b'\s\w\d').search" "f(s)"
20 loops, best of 5: 10.1 msec per loop

Those results are consistent across reruns.

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[issue34636] re module microoptimization: speed up bytes \w \s \d matching

[Gregory P. Smith]

New submission from Gregory P. Smith :

filing this issue to track https://github.com/python/cpython/pull/9170

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priority: normal
pull_requests: 8627
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status: open
title: re module microoptimization: speed up bytes \w \s \d matching
type: performance
versions: Python 3.8

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[issue34637] Make *start* usable as a keyword argument for sum().

[Gregory P. Smith]

Gregory P. Smith  added the comment:

+1 agreed.

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[issue34405] Upgrade to OpenSSL 1.1.0i / 1.0.2p

[miss-islington]

miss-islington  added the comment:


New changeset aa02ab15aed9d0b70f619c186326594c0d50bdd6 by Miss Islington (bot) 
in branch '2.7':
[2.7] bpo-34405: Update to OpenSSL 1.0.2p for macOS installer builds (GH-9191) 
(GH-9196)
https://github.com/python/cpython/commit/aa02ab15aed9d0b70f619c186326594c0d50bdd6


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[issue34405] Upgrade to OpenSSL 1.1.0i / 1.0.2p

[Steve Dower]

Change by Steve Dower :


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[issue34637] Make *start* usable as a keyword argument for sum().

[Gregory P. Smith]

Gregory P. Smith  added the comment:

I suggest also allowing the first argument to be a keyword named sequence= as 
well.  (along the philosophy of positional only arguments on APIs that happen 
to be implemented in C in CPython are a bad legacy)

pypy already uses these names:
 
https://bitbucket.org/pypy/pypy/src/4cbeaa8bf545332c36ae277019772aa432693e4c/pypy/module/__builtin__/app_functional.py?at=default=file-view-default#app_functional.py-41

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[issue33649] asyncio docs overhaul

[Yury Selivanov]

Yury Selivanov  added the comment:


New changeset 8be876e44b2dffb96b551029454cbfb16d697992 by Yury Selivanov in 
branch 'master':
bpo-33649: Cleanup asyncio/streams and asyncio/synchronization docs (GH-9192)
https://github.com/python/cpython/commit/8be876e44b2dffb96b551029454cbfb16d697992


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[issue25041] document AF_PACKET socket address format

[Benjamin Peterson]

Change by Benjamin Peterson :


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[issue20180] Derby #11: Convert 50 sites to Argument Clinic across 9 files

[Tal Einat]

Tal Einat  added the comment:

Now just the collections module is left from this group.

Raymond, what would you like done with it WRT AC conversion, if at all?

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[issue31902] Fix col_offset for ast nodes: AsyncFor, AsyncFunctionDef, AsyncWith

[miss-islington]

Change by miss-islington :


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[issue29051] Improve error reporting involving f-strings (PEP 498)

[Eric V. Smith]

Eric V. Smith  added the comment:

Because this issue describes two different problems, I'm going to close it.

The part of it that involves errors during the evaluation of a syntactically 
valid expression was at least partially fixed in #30465. I will probably 
re-work how this fix was implemented.

I'm working on the syntax error part of it in #34364.

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dependencies:  -Tracebacks should contain the first line of continuation lines
resolution:  -> duplicate
stage:  -> resolved
status: open -> closed

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[issue34579] test_embed.InitConfigTests fail on AIX

[STINNER Victor]

STINNER Victor  added the comment:

What is the output of "./Programs/_testembed init_default_config"?

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[issue34579] test_embed.InitConfigTests fail on AIX

[STINNER Victor]

STINNER Victor  added the comment:

Hum, you should run "env -i ./Programs/_testembed init_default_config" to run 
the program in an empty environment. test_embed modifies os.environ to remove 
all PYTHON* env vars.

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[issue34637] Make *start* usable as a keyword argument for sum().

[Karthikeyan Singaravelan]

Change by Karthikeyan Singaravelan :


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[issue32490] subprocess: duplicate filename in exception message

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:

This code was added in issue4925. Is the original problem gone?

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[issue34604] Possible mojibake in pwd.getpwnam and grp.getgrnam

[William Grzybowski]

Change by William Grzybowski :


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[issue28617] Why isn't "in" called a comparison operation?

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:

I think that "types that are :term:`iterable` or implement the 
:meth:`__contains__` method" is too low-level for this section.

In this section we tell about builtin types. From those the types that support 
`in` and `not in` are list, tuple, dict, set, frozenset, str, bytes, bytearray, 
memoryview, and iterator types. We can just enumerate them or use general word. 
Calling the "sequence types" is not correct, but fortunately all of them are 
iterable, so that we can say just "iterable types described below". Or 
enumerate categories of types, as they are named in the below subsections: 
"iterator types, sequence types, str, binary sequence types, set types and 
dict", with links to corresponding subsections.

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[issue34465] ipaddress should accept bytearray in addition to bytes

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:

See issue27572 for moving in opposite direction. Supporting the buffer protocol 
rather of just bytes and bytearray complicates the code, and can be considered 
as a feature creep, especially if an input is a text encoded as bytes.

But in this case the bytes argument of IPv4Address() is not a text 
representation like b'127.0.0.1', but a packed array of bytes like bytes([127, 
0, 0, 1]). Accepting bytearray and memoryview makes more sense for it. Yet I'm 
not sure that supporting them is worth adding an overhead. This will affect 
every call of the IPv4Address constructor, and I think that this is not the 
most common case.

Maybe add a special purposed named constructor IPv4Address.from_bytes() that 
will accept any objects supporting the buffer protocol?

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