[issue18378] locale.getdefaultlocale() fails on Mac OS X with default language set to English

[Ronald Oussoren]

Ronald Oussoren added the comment:

ping...

I think the current behavior is a bug in Python and should be fixed in 2.7, 
3.4, 3.5 and default (using Dmitry's patch). 

I'd like to commit the patch, but would like someone else's review of the patch 
before doing so.

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[issue24713] Import docs reference the deprecated imp.reload

[Petr Viktorin]

New submission from Petr Viktorin:

In 3.4, `imp.reload` was deprecated in favor of `importlib.reload`.

https://docs.python.org/3/library/imp.html

--
assignee: docs@python
components: Documentation
files: docs.patch
keywords: patch
messages: 247319
nosy: docs@python, encukou, eric.araujo, ezio.melotti, georg.brandl
priority: normal
severity: normal
status: open
title: Import docs reference the deprecated imp.reload
versions: Python 3.4, Python 3.5, Python 3.6
Added file: http://bugs.python.org/file40011/docs.patch

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[issue14373] C implementation of functools.lru_cache

[Roundup Robot]

Roundup Robot added the comment:

New changeset 5345e5ce2eed by Serhiy Storchaka in branch '3.5':
Issue #14373: Fixed segmentation fault when gc.collect() is called during
https://hg.python.org/cpython/rev/5345e5ce2eed

New changeset 9c6d11d22801 by Serhiy Storchaka in branch 'default':
Issue #14373: Fixed segmentation fault when gc.collect() is called during
https://hg.python.org/cpython/rev/9c6d11d22801

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[issue14373] C implementation of functools.lru_cache

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

Thank you Ned.

Is anything left to do with this issue or it can be closed?

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[issue18378] locale.getdefaultlocale() fails on Mac OS X with default language set to English

[Serhiy Storchaka]

Changes by Serhiy Storchaka :


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[issue18378] locale.getdefaultlocale() fails on Mac OS X with default language set to English

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

Needed tests.

With the patch:

$ LC_CTYPE=UTF-8 ./python
>>> import locale
>>> locale.getdefaultlocale()
(None, 'UTF-8')
>>> locale.getpreferredencoding()
'ANSI_X3.4-1968'
>>> locale.getlocale()
(None, None)

$ LC_CTYPE=en_US_UTF-8 ./python
>>> import locale
>>> locale.getdefaultlocale()
('en_US', 'UTF-8')
>>> locale.getpreferredencoding()
'UTF-8'
>>> locale.getlocale()
('en_US', 'UTF-8')

I think getpreferredencoding() and getlocale() should return the UTF-8 encoding.

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[issue18181] PEP447: Add type.__getdescriptor__

[Ronald Oussoren]

Ronald Oussoren added the comment:

I've attached a new version of the patch (pep447-2015-07-25.txt). Changes in 
this version of the patch:

1) Works with the current trunk (as in "all tests pass")

2) Types in C must explicitly set Py_TPFLAGS_GETDESCRIPTOR in tp_flags to 
   enable the tp_getdescriptor slot. 

   This is primarily done avoid crashing when loading a C extension for
   older CPython versions (even if that's not guaranteed to work anyway).

The PEP needs to be updated for the second change, that's next on my list.

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Added file: http://bugs.python.org/file40012/pep447-2015-07-25.txt

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[issue24712] Docs page's sidebar vibrates on mouse wheel scroll on Chrome.

[Biwin John]

Biwin John added the comment:

The problem exist with the Chrome on Ubuntu, Windows and OSX, but ony with the 
python docs for version 2.7.

Docs for 2.6 use the same sidebar.

But in 2.7 docs, the content of sidebar is positioned with the style added on 
scroll,

style="float: left; margin-right: 0px; width: 202px; top: 13px;"

The top value is calculated on scroll, the same code works with FireFox without 
any problem.

So it might be the way chrome handles the change in values. And we must 
workaround with our code than waiting for Chrome to get fixed.

Needs to be fixed as, 2.7 is the most used version, comes default with most 
distros and chrome is the most used browser (50.25% of 
all)[https://en.wikipedia.org/wiki/Usage_share_of_web_browsers]

Recommendations:
1. Change the sidebar behavior to the 2.6 docs sidebar one.(default top value, 
users can scroll up to see the content)
or.
2. Make the sidebar position:fixed and provide a inner scroll bar.

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[issue24714] Crash with string_at(None)

[Michael Toews]

New submission from Michael Toews:

On Debian x64 stable with Python 2.7 and 3.4, the following causes a 
segmentation fault:

from ctypes import string_at
string_at(None)

On Windows 64-bit with Python 2.7 it raises WindowsError and Python 3.3 raises 
OSError, both showing a message "access violation reading 0x", 
but it does not crash.

The above behavior was found when reading a result from a C API that can be 
either a zero-terminated string or NULL.

--
components: ctypes
messages: 247325
nosy: mwtoews
priority: normal
severity: normal
status: open
title: Crash with string_at(None)
type: crash
versions: Python 2.7, Python 3.3, Python 3.4

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[issue18378] locale.getdefaultlocale() fails on Mac OS X with default language set to English

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

Perhaps the better way to solve this issue is to use aliases table. What is the 
LC_CTYPE environment variable set when the default language set to non-English? 
How different native MacOS X command-line programs behave when set LC_CTYPE to 
other encoding (e.g. ASCII, US-ASCII, ISO8859-1, ISO-8859-1, Latin1)? What if 
set it to UTF8 (no minus) or utf-8 (lower case)?

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[issue24714] Crash with string_at(None)

[Serhiy Storchaka]

Changes by Serhiy Storchaka :


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versions: +Python 3.5, Python 3.6 -Python 3.3

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[issue24714] Crash with string_at(None)

[STINNER Victor]

STINNER Victor added the comment:

ctypes gives you a raw access to the memory. If you try to read unmapped memory 
areas, the program may or may not crash. Usually, you get a segmentation fault.

https://en.wikipedia.org/wiki/Segmentation_fault

Python doesn't provide a portable behaviour on segmentation faults.

Note: You can use faulthandler to get the backtrace on segmentation fault.

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[issue24714] Crash with string_at(None)

[STINNER Victor]

Changes by STINNER Victor :


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[issue24715] Sorting HOW TO: bad example for reverse sort stability

[Jakub Wilk]

New submission from Jakub Wilk:

https://docs.python.org/3/howto/sorting.html#odd-and-ends gives the following 
example for reverse sort stability:

>>> data = [('red', 1), ('blue', 1), ('red', 2), ('blue', 2)]
>>> assert sorted(data, reverse=True) == list(reversed(sorted(reversed(data

But here all the keys are different, so the result would be the same even if 
the sort algorithm weren't stable.

You probably wanted to pass to key=itemgetter(0) to both sorted() calls.

--
assignee: docs@python
components: Documentation
messages: 247328
nosy: docs@python, jwilk
priority: normal
severity: normal
status: open
title: Sorting HOW TO: bad example for reverse sort stability

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[issue24716] Multiple fdopen() on mkstemp() descriptor crashes py27 interpreter

[Thomas Krijnen]

New submission from Thomas Krijnen:

Following code crashes my Python 2.7.9 interpreter on Windows:

import os, tempfile
a, b = tempfile.mkstemp()
f = os.fdopen(a, "wb")
f = os.fdopen(a, "wb")
f.write("beer")
f.close()

--
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messages: 247329
nosy: Thomas Krijnen, paul.moore, steve.dower, tim.golden, zach.ware
priority: normal
severity: normal
status: open
title: Multiple fdopen() on mkstemp() descriptor crashes py27 interpreter
type: crash
versions: Python 2.7

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[issue18181] PEP447: Add type.__getdescriptor__

[Ronald Oussoren]

Ronald Oussoren added the comment:

The attached micro benchmark indicates that method_cache in typeobject.c isn't 
used when using my patch. I'll have too look into that.

Other than that benchmarks results look OK (but: not using the method_cache is 
unacceptable as this most definitely changes performance).

What is kind of scary, but is to be expected I guess, is that a 
__getdescriptor__ method in Python is awfully slow.  I have to look into why 
this is slow, as the slowdown for using Python is significantly worse than I 
expected.

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Added file: http://bugs.python.org/file40013/pep447-micro-bench.py

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[issue24716] Multiple fdopen() on mkstemp() descriptor crashes py27 interpreter

[Serhiy Storchaka]

Changes by Serhiy Storchaka :


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[issue24713] Import docs reference the deprecated imp.reload

[Roundup Robot]

Roundup Robot added the comment:

New changeset 6c713dcce26a by Berker Peksag in branch '3.4':
Issue #24713: Use importlib.reload() in import reference document.
https://hg.python.org/cpython/rev/6c713dcce26a

New changeset afb12ebd96df by Berker Peksag in branch '3.5':
Issue #24713: Use importlib.reload() in import reference document.
https://hg.python.org/cpython/rev/afb12ebd96df

New changeset 5fb7d3238248 by Berker Peksag in branch 'default':
Issue #24713: Use importlib.reload() in import reference document.
https://hg.python.org/cpython/rev/5fb7d3238248

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[issue24713] Import docs reference the deprecated imp.reload

[Berker Peksag]

Berker Peksag added the comment:

Thanks for the report and the patch, Petr.

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

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[issue18378] locale.getdefaultlocale() fails on Mac OS X with default language set to English

[Ronald Oussoren]

Ronald Oussoren added the comment:

The only locale that doesn't include language information is the UTF-8 one, 
there is no locale named "US-ASCII".

See /usr/share/locale on an OSX system.

PS. The more I look at locale.py the more problems I find with it. The code 
makes a unwarranted assumptions about locales that aren't actually true on all 
systems.

For example:

>>> locale.normalize('ja_JP')
'ja_JP.eucJP'


That's not true on OSX, /usr/share/locale/ja_JP/LC_CTYPE is a symlink to 
/usr/share/locale/UTF-8/LC_CTYPE.

AFAIK *all* locale's on OSX use UTF-8.

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[issue2091] file accepts 'rU+' as a mode

[Larry Hastings]

Larry Hastings added the comment:

Yeah, considering how long this bug has been sitting around, I think we can 
wait for one more release for the fix.  3.6 please.

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[issue18378] locale.getdefaultlocale() fails on Mac OS X with default language set to English

[Ronald Oussoren]

Ronald Oussoren added the comment:

The alias mechanism cannot be used because LC_CTYPE=UTF-8 as the locale doesn't 
imply anything about languages. 

In Linux terms it is more or less equal to "C.UTF-8" or "POSIX.UTF-8", except 
that those two aren't valid locales on OSX.

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[issue24717] python logging handler not used when added after a process is started

[eric]

New submission from eric:

If I have interpreted the python3 documentation correctly, regardless of where 
I add the handler to the root logger, my log messages from within a Process 
should be sent to a file. However, this is not the case.

Here is a complete program which demonstrates the problem:

import logging
import logging.handlers

from multiprocessing import Process
from time import sleep

fileHandler = logging.FileHandler( 'mylog.log' )
fileHandler.setLevel( 5 )

logger = logging.getLogger( None )

def process_logger():

print( "process waiting" )
sleep( 5 )
print( 'process start' )

logger = logging.getLogger( None )

for num in range( 1, 10 ):
logger.critical( "critical: %d" % num )
sleep(1)

#
# if this is where the handler is added, the critical messages
# will go to the file
#
logger.addHandler( fileHandler )

processLogger = Process( target=process_logger )
processLogger.start()

#
# if this is where the handler is added, the critical messages
# will not go to the file.
#
#logger.addHandler( fileHandler )

print( "started" )

I am using python 3.4.3 on OS X 10.10.4.

My guess as to why this does not work is that when I start the Process, it 
makes a copy of the current environment and if the handler has not been added 
by that time, the environment the Process is running in won't have it.

I have three questions:

Why do my messages not always end up in the file regardless of where I call 
logger.addHandler?

Should my messages always end up in the file?

If they should not, what is the best solution to the general problem of needed 
to manipulate handlers after a Process has been started?

--
components: Extension Modules
messages: 247336
nosy: ericg97477
priority: normal
severity: normal
status: open
title: python logging handler not used when added after a process is started
versions: Python 3.4

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[issue24718] Specify interpreter when running in IDLE

[Daniel Pope]

New submission from Daniel Pope:

I maintain a library called Pygame Zero which allows beginner programmers to 
start writing games without lines of boilerplate importing libraries, creating 
event loops and so on.

To support these features, Pygame Zero provides the 'pgzrun' command:

pgzrun 

[issue18378] locale.getdefaultlocale() fails on Mac OS X with default language set to English

[Ronald Oussoren]

Ronald Oussoren added the comment:

Testing this is interesting to say the least due to the dynamic way the module 
interface is built.

Serhiy: are you testing on a Linux machine? On my machine 
getpreferredencoding() returns 'UTF-8' because it hits the CODESET path (which 
ends up calling ``_locale.nl_langinfo(_locale.CODESET)`` and that returns 
UTF-8).

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[issue18378] locale.getdefaultlocale() fails on Mac OS X with default language set to English

[Ronald Oussoren]

Ronald Oussoren added the comment:

I've attached a patch with more tests, but I'm not to happy about the new test 
because it too much of a white box test and is therefore fairly fragile w.r.t. 
the actual implementation of the module.

--
Added file: http://bugs.python.org/file40014/issue18378-2015-07-25-py36.txt

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[issue24279] Update test_base64 to use test.support.script_helper

[Roundup Robot]

Roundup Robot added the comment:

New changeset 8e1291cc8b69 by Berker Peksag in branch '3.5':
Issue #24279: Update test_base64 to use test.support.script_helper.
https://hg.python.org/cpython/rev/8e1291cc8b69

New changeset 472f354c70b8 by Berker Peksag in branch 'default':
Issue #24279: Update test_base64 to use test.support.script_helper.
https://hg.python.org/cpython/rev/472f354c70b8

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[issue13897] Move fields relevant to sys.exc_info out of frame into generator/threadstate

[Mark Shannon]

Mark Shannon added the comment:

Updated patch to support exception chaining and to merge cleanly.

--
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Added file: http://bugs.python.org/file40015/exc_info3.patch

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[issue24279] Update test_base64 to use test.support.script_helper

[Berker Peksag]

Berker Peksag added the comment:

Thanks Christie. I've kept get_output() and changed it to return 
assert_python_ok().out.

--
components: +Tests
resolution:  -> fixed
stage:  -> resolved
status: open -> closed
type:  -> enhancement
versions: +Python 3.6

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[issue24420] Documentation regressions from adding subprocess.run()

[Roundup Robot]

Roundup Robot added the comment:

New changeset bedff93d778d by Berker Peksag in branch '3.5':
Issue #24420: Fix documentation regression introduced by f0a00ee094ff.
https://hg.python.org/cpython/rev/bedff93d778d

New changeset 9b17df697a3c by Berker Peksag in branch 'default':
Issue #24420: Fix documentation regression introduced by f0a00ee094ff.
https://hg.python.org/cpython/rev/9b17df697a3c

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[issue24420] Documentation regressions from adding subprocess.run()

[Berker Peksag]

Berker Peksag added the comment:

Thanks Martin.

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

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[issue24719] Resourc Leak in cPickle Module

[Pankaj Sharma]

New submission from Pankaj Sharma:

Hi,
There is resource leak in cPickle module in function "Pickle_getvalue()". so 
need to free before return .
I have attached patched ,please review it.

Thnaks!

--
components: Extension Modules, Library (Lib)
files: Python-2.7.10-cPickle.patch
keywords: patch
messages: 247345
nosy: benjamin.peterson, pankaj.s01
priority: normal
severity: normal
status: open
title: Resourc Leak in cPickle Module
type: resource usage
versions: Python 2.7
Added file: http://bugs.python.org/file40016/Python-2.7.10-cPickle.patch

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[issue21697] shutil.copytree() handles symbolic directory incorrectly

[Roundup Robot]

Roundup Robot added the comment:

New changeset e807f1d81cb6 by Berker Peksag in branch '3.4':
Issue #21697: shutil.copytree() now correctly handles symbolic links that point 
to directories.
https://hg.python.org/cpython/rev/e807f1d81cb6

New changeset 31f4041b9286 by Berker Peksag in branch '3.5':
Issue #21697: shutil.copytree() now correctly handles symbolic links that point 
to directories.
https://hg.python.org/cpython/rev/31f4041b9286

New changeset 8f65be73eb3a by Berker Peksag in branch 'default':
Issue #21697: shutil.copytree() now correctly handles symbolic links that point 
to directories.
https://hg.python.org/cpython/rev/8f65be73eb3a

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[issue23496] Steps for Android Native Build of Python 3.4.2

[Cyd Haselton]

Cyd Haselton added the comment:

I assume so; I'm using whatever is pulled frommy fork of the git repo.

I've actually run into a different error that occured when i rebuilt to include 
readline support; when I run ./python -m test I;m getting "ImportError: no 
module named _struct found."

Trying to figure that one out first...

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[issue21697] shutil.copytree() handles symbolic directory incorrectly

[Berker Peksag]

Berker Peksag added the comment:

Thanks for the patches and testing!

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status: open -> closed

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[issue18181] PEP447: Add type.__getdescriptor__

[Ronald Oussoren]

Ronald Oussoren added the comment:

pep447-2015-07-25-v2.txt changes two things w.r.t. the patch earlier today:

1) The performance problems w.r.t. the method_cache are gone

2) Added code for handling python exceptions other than AttributeError in
   calls to __getdescriptor__. 

   This code requires some tests to make sure the error handling code 
   is correct.

The new patch also adds some more tests, and adds extra MCACHE_STATS counters. 
Those aren't part of the proposal but were helpful to find the problem w.r.t. 
1).

As I mentioned before implementing __getdescriptor__ in Python is bad for 
performance of instances of that metaclass. AFAIK that cannot be helped, doing 
that will just execute a lot more Python code.

--
Added file: http://bugs.python.org/file40017/pep447-2015-07-25-v2.txt

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[issue19475] Add timespec optional flag to datetime isoformat() to choose the precision

[Alessandro Cucci]

Changes by Alessandro Cucci :


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Added file: http://bugs.python.org/file40018/issue19475.patch

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[issue18181] PEP447: Add type.__getdescriptor__

[Ronald Oussoren]

Ronald Oussoren added the comment:

Note: the error handling code for exceptions in __getdescriptor__ definitely 
isn't good enough yet. 

I'm writing tests and am hunting down the problems those tests find. I'm 
getting closer and will post a new version when I think I've found all bugs. 
Probably some time tomorrow.

For now be warned that unexpected exceptions in __getdescriptor__ might crash 
the interpreter, especially when it is used to look for dunder methods.

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[issue24667] OrderedDict.popitem()/__str__() raises KeyError

[Mark Shannon]

Mark Shannon added the comment:

The attached test case raises a KeyError for __str__()

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[issue24720] Python install help

[node]

New submission from node:

I am trying to install Python 3.5.0b2 on Win 8.1 but cannot get it loaded

http://pastebin.com/hKU2bvds

the error. hoping some one can help.

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status: open
title: Python install help
type: behavior
versions: Python 3.5

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[issue24715] Sorting HOW TO: bad example for reverse sort stability

[Raymond Hettinger]

Changes by Raymond Hettinger :


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[issue24720] Python install help

[Zachary Ware]

Zachary Ware added the comment:

1) your paste appears to be invalid. You can just paste in a message here, or 
attach a screenshot (though text is preferable :))
2) 3.5.0b2 is out of date, try with beta 3 (or beta 4, due out this weekend)

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[issue23496] Steps for Android Native Build of Python 3.4.2

[Marco Paolini]

Changes by Marco Paolini :


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[issue23670] Modifications to support iOS as a cross-compilation target

[Marco Paolini]

Changes by Marco Paolini :


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[issue24721] The result of calling dict.* methods on OrderedDict is undefined.

[Eric Snow]

New submission from Eric Snow:

(see issue24667)

collections.OrderedDict subclasses dict so calling dict's methods on an 
OrderedDict works.  However, neither the pure Python nor the C implementation 
of OrderedDict was written to support doing so.  In fact, both of them 
currently enter an inconsistent state when this happens.  For example:

# Python 3.4 (pure Python implementation)
>>> from collections import OrderedDict
>>> od = OrderedDict([('spam', 1), ('eggs', 2)])
>>> dict.__delitem__(od, 'spam')
>>> str(od)
Traceback (most recent call last):
  File "", line 1, in 
  File "/usr/lib/python3.4/reprlib.py", line 24, in wrapper
result = user_function(self)
  File "/usr/lib/python3.4/collections/__init__.py", line 198, in __repr__
return '%s(%r)' % (self.__class__.__name__, list(self.items()))
  File "/usr/lib/python3.4/_collections_abc.py", line 485, in __iter__
yield (key, self._mapping[key])
KeyError: 'spam'

# Python 3.5 (C implementation)
>>> from collections import OrderedDict
>>> od = OrderedDict([('spam', 1), ('eggs', 2)])
>>> dict.__delitem__(od, 'spam')
>>> str(od)
Traceback (most recent call last):
  File "", line 1, in 
KeyError: 'spam'

This is a consequence of subclassing a builtin type, which typically do not 
have good support for subclassing (e.g. issue10977).

It probably isn't worth making any changes to the code of either OrderedDict 
implementations.  At most I'd recommend a note in the OrderedDict documentation 
indicating that the results of passing an OrderedDict object to dict.* methods 
are undefined.

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components: Documentation
messages: 247354
nosy: docs@python, eric.snow, rhettinger
priority: low
severity: normal
status: open
title: The result of calling dict.* methods on OrderedDict is undefined.
type: behavior
versions: Python 2.7, Python 3.4, Python 3.5, Python 3.6

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[issue24721] The result of calling dict.* methods on OrderedDict is undefined.

[Raymond Hettinger]

Changes by Raymond Hettinger :


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[issue24667] OrderedDict.popitem()/__str__() raises KeyError

[Eric Snow]

Eric Snow added the comment:

@Mark, note that you get the same behavior with the pure Python OrderedDict.  
Calling dict.* methods on an OrderedDict gives you undefined behavior.  I 
expect the same is true for most subclasses of builtin types that override 
builtin methods.

Anyway, the problem with using dict.* methods with OrderedDict is a separate 
issue from the bug with pop/popitem reported here.  I've opened issue24721 to 
address the former.

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[issue24719] Resourc Leak in cPickle Module

[Roundup Robot]

Roundup Robot added the comment:

New changeset a789ee93f152 by Benjamin Peterson in branch '2.7':
possible memory leak in error case (closes #24719)
https://hg.python.org/cpython/rev/a789ee93f152

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[issue24667] OrderedDict.popitem()/__str__() raises KeyError

[Eric Snow]

Eric Snow added the comment:

Regarding this bug, it's clear now that the ordered keys and the underlying 
dict are getting out of sync somewhere.  This is either due to a bug in the C 
OrderedDict implementation or the use of the concrete dict C-API (or dict.* 
methods; thanks Mark).  It's undoubtedly the former since the pure Python 
implementation did not have this problem.

I'm hoping to have some time today to identify the source of the problem.

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[issue24721] The result of calling dict.* methods on OrderedDict is undefined.

[Raymond Hettinger]

Raymond Hettinger added the comment:

> This is a consequence of subclassing a builtin type

Not really.  This is how subclassing works in general.  Any time you a user 
calls a parent class directly on an instance of subclass, they are bypassing 
whatever the subclass needs to do to maintain its invariants.

class A:
def __init__(self):
self.data = []
def add(self, x):
self.data.append(x)

class B(A):
'Track the number of odds'
def __init__(self):
A.__init__(self)
self.odds = 0
def add(self, x):
A.add(self, x)
self.odds += (x % 2)

b = B()
b.add(1)
b.add(2)
b.add(3)
b.add(4)
A.add(b, 5)
assert b.odds == sum(x%1 for x in b.data), 'OMG, B is broken!'

There is nothing special about OrderedDicts in this regard.  Perhaps there 
should be a FAQ entry regarding the "facts of life" in the world of object 
oriented programming.

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[issue23496] Steps for Android Native Build of Python 3.4.2

[Ryan Gonzalez]

Ryan Gonzalez added the comment:

So...I have *no* clue why _struct can't be found.

Can you use gdb to get the segfault backtrace like you did before?

On July 25, 2015 6:56:10 AM CDT, Cyd Haselton  wrote:
>
>Cyd Haselton added the comment:
>
>I assume so; I'm using whatever is pulled frommy fork of the git repo.
>
>I've actually run into a different error that occured when i rebuilt to
>include readline support; when I run ./python -m test I;m getting
>"ImportError: no module named _struct found."
>
>Trying to figure that one out first...
>
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[issue24721] The result of calling dict.* methods on OrderedDict is undefined.

[Eric Snow]

Eric Snow added the comment:

Ah, you're right.  I was hung up on issue10977. :)

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[issue24721] The result of calling dict.* methods on OrderedDict is undefined.

[Eric Snow]

Eric Snow added the comment:

Feel free to close this, Raymond.

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[issue24722] Python install help

[node]

New submission from node:

http://pastebin.com/D5eVxF1b

Sorry, where can I download the latest version? I went to python site and only 
saw this version

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priority: normal
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status: open
title: Python install help
type: behavior
versions: Python 3.5

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[issue24720] Python install help

[node]

node added the comment:

http://pastebin.com/D5eVxF1b

Sorry, try this where to get the latest version pls..

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[issue23496] Steps for Android Native Build of Python 3.4.2

[Cyd Haselton]

Cyd Haselton added the comment:

As soon as I build a PIE gdb I can.

And right now, running ./python -m test throws the ImportError...so I'll
need to resolve that first
On Jul 25, 2015 12:38 PM, "Ryan Gonzalez"  wrote:

>
> Ryan Gonzalez added the comment:
>
> So...I have *no* clue why _struct can't be found.
>
> Can you use gdb to get the segfault backtrace like you did before?
>
> On July 25, 2015 6:56:10 AM CDT, Cyd Haselton 
> wrote:
> >
> >Cyd Haselton added the comment:
> >
> >I assume so; I'm using whatever is pulled frommy fork of the git repo.
> >
> >I've actually run into a different error that occured when i rebuilt to
> >include readline support; when I run ./python -m test I;m getting
> >"ImportError: no module named _struct found."
> >
> >Trying to figure that one out first...
> >
> >--
> >
> >___
> >Python tracker 
> >
> >___
>
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>
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> 
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[issue21750] mock_open data is visible only once for the life of the class

[Robert Collins]

Changes by Robert Collins :


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[issue2091] file accepts 'rU+' as a mode

[Roundup Robot]

Roundup Robot added the comment:

New changeset 1a5bbb31f740 by Robert Collins in branch 'default':
- Issue #2091: error correctly on open() with mode 'U' and '+'
https://hg.python.org/cpython/rev/1a5bbb31f740

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[issue2091] file accepts 'rU+' as a mode

[Robert Collins]

Robert Collins added the comment:

@larry thanks - that was my inclination too. Applied to 3.6

@Serhiy I've not done a warning in 3.4/3.5 because - the behaviour is already 
broken, this patch just catches it a lot earlier (on open rather than 
subsequent operations).

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[issue2091] file accepts 'rU+' as a mode

[Robert Collins]

Changes by Robert Collins :


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[issue24710] Class name hardcoded in TracebackException.from_exception()

[Robert Collins]

Robert Collins added the comment:

We can't use from_exception in __init__ because from_exception's job is to look 
up __traceback__, but the legacy API allows arbitrary tb objects which may not 
be exc.__traceback__, and modifying exc.__traceback__ or creating a shim object 
just to be able to use from_exception doesn't make sense to me.

This patch looks good, and I'm applying to 3.6. It has no functional impact 
(except for perhaps weird mocking corner cases, but as its a pure class that 
shouldn't be needed), so I'm leaving it out of 3.5, since i'm not 100% sure 
where the move to a new repo is at, and its not worth figuring that out.

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[issue24710] Class name hardcoded in TracebackException.from_exception()

[Roundup Robot]

Roundup Robot added the comment:

New changeset 1be4d7388279 by Robert Collins in branch 'default':
Issue #24710: Use cls in TracebackException.from_exception.
https://hg.python.org/cpython/rev/1be4d7388279

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[issue24710] Class name hardcoded in TracebackException.from_exception()

[Robert Collins]

Changes by Robert Collins :


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[issue24710] Class name hardcoded in TracebackException.from_exception()

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

We can use from_exception() in __init__ because in both cases first three 
arguments of TracebackException() are type(e), e, e.__traceback__. Without this 
change changing from_exception() makes less sense.

Here is a patch.

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[issue2091] file accepts 'rU+' as a mode

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

Perhaps the 'U' mode should just raise an exception in 3.6.

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[issue24651] Mock.assert* API is in user namespace

[Robert Collins]

Robert Collins added the comment:

Some great points raised here.

Yes, we'd need .calls and .returnvalue and so on all made accessible via 
another route, and that would be a less direct spelling.

e.g. a_mock.returnvalue = 3
-> 
# function
set_returnvalue(a_mock, 3)
or
# separate object to get at the mock housekeeping vs the mocked interface
mocki(a_mock).returnvalue = 3

etc.

None of which make me want to say 'wow thats a great api'.

I wouldn't want to advocate for a patch for this unless:
 - it would feel as convenient to use as the current API does
 - it would be possible to be both forward and backwards compatible with the 
existing API indefinitely: There are lots of users of mock, and offering a 
[presumably] improved API is not worth turning all that code into an instant 
sea-anchor: if we're going to change this, we need to do so in a -very- 
graceful fashion, because unlike e.g. the mock_open things that only affect 
some users of mock, this would (if done poorly) break every user ever.

For clarity, I have no plans to write such a patch at this time, though if 
someone did come up with a proof of concept I'd happily review it, and dig up 
Michael to get his thoughts *if and only if* it met the two constraints above.

I'm not sure of the right bug tracker state to say 'this is a maybe, maintainer 
isn't enthused about it'.

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[issue24651] Mock.assert* API is in user namespace

[Robert Collins]

Changes by Robert Collins :


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[issue12750] datetime.strftime('%s') should respect tzinfo

[Robert Collins]

Robert Collins added the comment:

Moving this back to patch needed: the patch was reviewed by a committer and 
changes requested.

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[issue24710] Class name hardcoded in TracebackException.from_exception()

[Serhiy Storchaka]

Changes by Serhiy Storchaka :


Removed file: http://bugs.python.org/file40020/classmethod_2.patch

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[issue24710] Class name hardcoded in TracebackException.from_exception()

[Serhiy Storchaka]

Changes by Serhiy Storchaka :


Added file: http://bugs.python.org/file40021/classmethod_2.patch

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[issue15989] Possible integer overflow of PyLong_AsLong() results

[Robert Collins]

Robert Collins added the comment:

@serhiy - I'm a little confused about the state of this patch. It seems like 
you need more review?

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[issue15989] Possible integer overflow of PyLong_AsLong() results

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

Yes, it would be good if other's pair of eyes will look on the patch.

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[issue10388] spwd returning different value depending on privileges

[Robert Collins]

Robert Collins added the comment:

Too late for 3.5 for this IMO.

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[issue18787] Misleading error from getspnam function of spwd module

[Robert Collins]

Robert Collins added the comment:

Sounds like we want something analogous to 
http://bugs.python.org/file33404/fix_error_message_getspall_v2.patch for this 
bug. Moving to patch needed.

It looks like it would be easily tested too, so I'd like to see a test too 
please.

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[issue10388] spwd returning different value depending on privileges

[Robert Collins]

Robert Collins added the comment:

The man page for setspent says this:
"The functions that return a pointer return NULL if no more entries are 
available or if an error occurs during processing.  The functions  which
   have int as the return value return 0 for success and -1 for failure, 
with errno set to indicate the cause of the error.

   For the nonreentrant functions, the return value may point to static 
area, and may be overwritten by subsequent calls to these functions.

   The reentrant functions return zero on success.  In case of error, an 
error number is returned.

"

-> that is, setspent's interaction with errno is undefined, at least on Linux. 
I'm a little worried about whether this may pickup false errors as a result.

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[issue10388] spwd returning different value depending on privileges

[Robert Collins]

Robert Collins added the comment:

I'm moving this back to patch review - it needs a test, particularly because of 
the question I have around setspent.

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[issue20544] Use specific asserts in operator tests

[Robert Collins]

Robert Collins added the comment:

Looks sane to me. Should go in 3.6 if we're going to do this or get closed to 
remove cognitive overhead in the issue tracker. No point backporting this to 
older releases.

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[issue24710] Class name hardcoded in TracebackException.from_exception()

[Robert Collins]

Robert Collins added the comment:

Oh I see, - different things could have been meant but that application will 
work.

But - please don't use self.from_exception: its a class method, so 
TracebackException.from_exception(...) is the right spelling.

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[issue20544] Use specific asserts in operator tests

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

Backporting this to older releases is needed to help backporting future tests. 
We should keep tests consistent if possible.

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[issue24710] Class name hardcoded in TracebackException.from_exception()

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

self.from_exception() works as well.

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[issue24710] Class name hardcoded in TracebackException.from_exception()

[Serhiy Storchaka]

Changes by Serhiy Storchaka :


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[issue24722] Python install help

[Zachary Ware]

Changes by Zachary Ware :


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superseder:  -> Python install help

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[issue24715] Sorting HOW TO: bad example for reverse sort stability

[Raymond Hettinger]

Changes by Raymond Hettinger :


--
keywords: +patch
Added file: http://bugs.python.org/file40022/reverse_stablity.diff

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[issue23926] skipitem() in getargs.c still supports 'w' and 'w#', and shouldn't

[Joe Jevnik]

Joe Jevnik added the comment:

bumping so that we don't forget about this.

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[issue24712] Docs page's sidebar vibrates on mouse wheel scroll on Chrome.

[Ned Deily]

Changes by Ned Deily :


--
nosy: +georg.brandl

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[issue24717] python logging handler not used when added after a process is started

[Ned Deily]

Changes by Ned Deily :


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nosy: +vinay.sajip

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[issue12006] strptime should implement %G, %V and %u directives

[Alexander Belopolsky]

Alexander Belopolsky added the comment:

Reverting to "needs patch" stage because there are still issues to be ironed 
out.

--
stage: commit review -> needs patch
versions: +Python 3.6 -Python 3.5

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[issue20544] Use specific asserts in operator tests

[Raymond Hettinger]

Raymond Hettinger added the comment:

I don't think kind of shallow changes to the test suite should be backported.  
They probably shouldn't have been done at all.  When you change code, the tests 
are a safety net.  When you change tests, you have almost no safety net at all. 
 If the original test was developed using test-driven-development or for a 
bug-fix, then it was demonstrated to have failed at one time.  But when 
pointlessly refactored, the revised tests have no longer been demonstrated to 
actually detect to original underlying bug.  

If the whole point of "specific asserts" is to have better error messages on a 
failure, then we should wait until there is an actual failure to make the 
change.  Otherwise, this reduced the reliability of the test suite with zero 
benefit.  Most of these tests will never become broken (I can't recall the last 
time any of them failed) and if they did, their existing message would suffice.

Another reason this should be done is Guido's notion of "holistic refactoring". 
 The idea is that someone shouldn't travel through modules making shallow 
changes.  That work should be deferred to the module maintainer to be done in 
the course of normal deeply thought out work on the module.

The last reason these kind of changes shouldn't be made is that undoes work by 
the person who originally wrote it, making the code less familiar to them when 
they come back.  For example, most of the tests for sets are written in a way 
that reflects how I was thinking about the problem when I wrote it.  If someone 
comes through and renames the variables, rewraps the lines, switches the choice 
of assertions, etc.  Then they make it more difficult to recover the original 
line of thinking by the designer.  Put another way, no one likes to have code 
they're written needlessly scrambled around.  If there is a real bug fix, then 
yes.  Otherwise, shallow wholesale search and replace missions should be 
approached reluctantly.

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[issue24710] Class name hardcoded in TracebackException.from_exception()

[Robert Collins]

Robert Collins added the comment:

I know it 'works', I just think its not appropriate here.

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[issue20544] Use specific asserts in operator tests

[Robert Collins]

Robert Collins added the comment:

So, is this specific patch ok to apply, or are we going to reject it? I don't 
particularly care either way, but having this issue open and stalled just adds 
cognitive load to working with the bug tracker.

FWIW I agree that it should not be backported.

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[issue24720] Python install help

[Steve Dower]

Steve Dower added the comment:

Are you being promoted for administrative privileges? Unfortunately there's no 
way around requiring them to install the C Runtime update, so if you are 
blocked from applying Windows Updates to your machine unfortunately there's no 
good way around this.

Alternatively, do you have VS 2015 final release installed? This may be an 
error due to attempting to downgrade (3.5.0b3 was built with a prerelease 
version of VS), though it shouldn't be failing because of that.

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[issue20544] Use specific asserts in operator tests

[Antoine Pitrou]

Antoine Pitrou added the comment:

Everyone except Raymond seems to agree the patch is a good think, so it should 
probably be applied.

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[issue24721] The result of calling dict.* methods on OrderedDict is undefined.

[Raymond Hettinger]

Changes by Raymond Hettinger :


--
resolution:  -> not a bug
status: open -> closed

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[issue24667] OrderedDict.popitem()/__str__() raises KeyError

[Larry Hastings]

Larry Hastings added the comment:

It produces the same exception under Python 3.4, too.

--
nosy: +larry

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[issue24613] array.fromstring Use After Free

[John Leitch]

John Leitch added the comment:

Attached is a patch that updates array.fromstring to throw a ValueError when 
self is passed. It also updates the unit tests to cover this new behavior.

--
Added file: 
http://bugs.python.org/file40023/array.fromstring-Use-After-Free.patch

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[issue24667] OrderedDict.popitem()/__str__() raises KeyError

[Fabian]

Fabian added the comment:

Really this bug and not the one mentioned by Mark? I've been using 3.4(.3) 
since we use requests (and therefore urllib3) which happened a few months ago. 
I also can't remember any failure on a Python 3.4 Travis build.

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[issue24717] python logging handler not used when added after a process is started

[Vinay Sajip]

Vinay Sajip added the comment:

This is not a bug - it's how processes work on POSIX. Multiprocessing on POSIX 
generally uses the fork system call, which happens when you create a another 
process via the Process(...) call. At this point, the created process is a copy 
of the original process. When you add the handler *before* the Process(...) 
call, the copy also has the handler already added, so process_logger (which is 
called in the copy) will behave as expected. When you add the handler after the 
Process(...) call, the handler has not been added in the copy, so 
process_logger (which is called in the copy) will not behave as expected.

To avoid this sort of problem, ensure that logging is configured as desired in 
each process (normally, this means doing the logging configuration in code 
which is called (directly or indirectly) from the target=XXX callable which is 
passed to Process.

--
resolution:  -> not a bug
status: open -> closed

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[issue24645] logging.handlers.QueueHandler should not lock when handling a record

[Vinay Sajip]

Changes by Vinay Sajip :


--
resolution:  -> not a bug
status: open -> closed

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[issue24619] async/await parser issues

[Larry Hastings]

Changes by Larry Hastings :


--
status: open -> closed

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[issue24635] test_typing is flaky

[Larry Hastings]

Larry Hastings added the comment:

Deferring for beta 4.  We should still fix before release.  Preferably before 
RC1 depending on the availability of Certain Persons.

--
nosy: +larry
priority: release blocker -> deferred blocker

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