[issue32909] ApplePersistenceIgnoreState warning on macOS

[Ronald Oussoren]

Ronald Oussoren  added the comment:

The ApplePersistenceIgnoreState setting (either in user defaults or an 
info.plist file) is IMHO not the right solution, as this is a setting intended 
to be used for testing (see 
)

I don't have time to research this fully at this time, but expect that this is 
something that should be fixed in GUI libraries (or possibly matplotlib).

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[issue32917] ConfigParser writes a superfluous final blank line

[TitanSnow]

TitanSnow  added the comment:

Patch updated, included documentation and tests.

--
Added file: https://bugs.python.org/file47461/bpo-32917.patch

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[issue32917] ConfigParser writes a superfluous final blank line

[TitanSnow]

Change by TitanSnow :


Removed file: https://bugs.python.org/file47460/final_blank_line.patch

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[issue32916] IDLE: change 'str' to 'code' in idlelib.pyparse.PyParse and users

[Cheryl Sabella]

Cheryl Sabella  added the comment:

Yes, I agree.  I'll start working on this one first.

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[issue32304] Upload failed (400): Digests do not match on .tar.gz ending with x0d binary code

[Louis Lecaroz]

Louis Lecaroz  added the comment:

Hi,

First of all, thank you so much for having fixed this bug, I checked in 3.5 & 
it seems that this fix needs to be also backport in 3.5 branch & certainly 
others branches (like 3.4) ?

Thx in advance for your coming feedback
Best regards
Louis

--
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versions: +Python 3.4, Python 3.5

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[issue32911] Doc strings omitted from AST

[Mark Shannon]

Mark Shannon  added the comment:

Serhiy, thanks for reopening this issue.

It seems to be that there are three reasonable choices:
1. Revert to 3.6 behaviour, with the addition of `docstring` attribute.
2. Change the docstring attribute to an AST node, possibly by modifying the 
grammar.
3. Do nothing.

I would prefer 1, as it requires no changes to 3rd party code and doesn't 
present an additional obstacle when porting from Python 2.

2 would be acceptable, as it allows tools to easily convert the body back to 
its 3.6 form (or vice-versa)

3 is a pain as it involves re-tokenizing the file to get the location of the 
doc-string.

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[issue32920] Implement PEP 529 for os.getcwdb on Windows

[Alexey Izbyshev]

Change by Alexey Izbyshev :


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[issue32759] multiprocessing.Array do not release shared memory

[Antoine Pitrou]

Antoine Pitrou  added the comment:

Ok, this is because the multiprocessing Heap object never releases any unused 
arena objects, so the shared memory you allocate will probably stay allocated 
until the process tree ends.

It is possible to change the strategy to delete unused arenas, though it's 
unsure whether doing so has adverse consequences (such as making later 
allocations costlier).  It may make sense to only reclaim the larger arenas 
(larger than 1MB perhaps?).

--
versions: +Python 3.8 -Python 3.5, Python 3.6

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[issue30028] make test.support.temp_cwd() fork-safe

[Anselm Kruis]

Change by Anselm Kruis :


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[issue32886] new Boolean ABC in numbers module

[Mark Dickinson]

Mark Dickinson  added the comment:

> and a minimal representation of boolean logic operations that will seem 
> natural to anyone, don't you think ?

I'm afraid I don't. :-(

Issue 1: this ABC doesn't seem a good match for Python bools. If I have a 
bool-like object in a piece of code, my main expectations of that object would 
be that (a) it can be interpreted in a boolean context (e.g., the condition of 
an if statement, a while statement, an if-else expression, a std. lib. call 
that expects a bool, etc.), and (b) it can be combined with other bool-likes 
via `and`, `or` and `not`. All I need for (a) and (b) to work is that 
`__bool__` is defined. The *bitwise* operations provided by `__and__`, `__or__` 
and friends are irrelevant for these purposes, and for Python's bool they exist 
mainly because bool is a subclass of int, and not to provide logical boolean 
operations. (NumPy's take on this is a bit different, because of the issues 
involved with interpreting an array of booleans in boolean context.)

Issue 2: an interface that includes `|`, `&` and `^` but not `~` seems 
incomplete. If I *am* aiming to do bitwise operations with an object (as 
opposed to logical operations) then I'd probably expect `~` to be present. 
(Admittedly, there are cases that support `|`, `^` and `&` but not `~`, like 
sets.)

Perhaps there's a place for an interface that declares that an object supports 
the *bitwise* operators: `|`, `&`, `^` and `~`. We *do* have more than one 
concrete class here that would implement such an interface: Python's integer 
types, NumPy's integer types, NumPy's `bool_` type, potentially other things 
that resemble fixed-length bit-strings (like IP addresses or collections of 
flags). But I wouldn't call such an interface "Boolean", and wouldn't expect 
Python's built-in bool type to be registered as supporting that interface.

So overall, call me -1 on this proposal.

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[issue32759] multiprocessing.Array do not release shared memory

[Antoine Pitrou]

Antoine Pitrou  added the comment:

It is also possible to uncommit the memory without deallocating it, making 
reuse potentially faster, but that requires low-level platform-specific code 
(e.g. madvise(MADV_DONTNEED) on Linux or DiscardVirtualMemory() on Windows).

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[issue30028] make test.support.temp_cwd() fork-safe

[Anselm Kruis]

Change by Anselm Kruis :


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[issue32911] Doc strings omitted from AST

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:

I prefer 2 or 3. There are benefits from representing a docstring as a separate 
attribute. This simplifies the code for walking the AST tree (no longer special 
cases for skipping docstring in modules, classes and functions) and the code 
for retrieving a docstring. It solves the problem that an expression resulting 
to a constant string (like "a"+"b" or f"a") shouldn't be interpreted as 
docstrings.

The position of a docstring can be useful for determining the position of 
fragments inside a docstring (for example for doctests). Several active 
developed third-party libraries (like pyflakes, see 
https://github.com/PyCQA/pyflakes/pull/273) already updated their code for 
supporting 3.7. The position of nodes preceding or following a docstring could 
be used. This is not perfect, it doesn't work with empty lines before or after 
docstring, but it never was perfect due to escaped newlines in string literals 
and line continuations.

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[issue32759] multiprocessing.Array do not release shared memory

[Antoine Pitrou]

Change by Antoine Pitrou :


--
keywords: +patch
pull_requests: +5605
stage:  -> patch review

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[issue32911] Doc strings omitted from AST

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:

Note, that getting the location of the dostring already was a pain since in 
case of multiline string literals CPython saves the location of the last line, 
and PyPy saves the location of the first line. Getting the location of the 
specific fragment of the docstring is even larger pain as shown in following 
examples:

def f()
"""
>>> f()
"""

def f()
"""\
>>> f()
"""

def f()
""\
""\
">>> f()"\
""\
""

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[issue31355] Remove Travis CI macOS job: rely on buildbots

[Antoine Pitrou]

Antoine Pitrou  added the comment:

The situation with macOS builds on Travis-CI is now much better (no more long 
waiting queues) so we might revisit this decision.

--
status: closed -> pending

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[issue32087] deprecated-removed directive generates overlapping msgids in .pot files

[INADA Naoki]

INADA Naoki  added the comment:


New changeset 0febc053736112d7bb9081742b3ac0ece7b973e7 by INADA Naoki 
(cocoatomo) in branch 'master':
bpo-32087: Doc: Make "deprecated-removed"  directive translatable (GH-4473)
https://github.com/python/cpython/commit/0febc053736112d7bb9081742b3ac0ece7b973e7


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[issue32087] deprecated-removed directive generates overlapping msgids in .pot files

[miss-islington]

Change by miss-islington :


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[issue32087] deprecated-removed directive generates overlapping msgids in .pot files

[miss-islington]

Change by miss-islington :


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[issue32087] deprecated-removed directive generates overlapping msgids in .pot files

[miss-islington]

miss-islington  added the comment:


New changeset c673a62d5f3c650130bf40f2161a2eac64419bce by Miss Islington (bot) 
in branch '3.7':
bpo-32087: Doc: Make "deprecated-removed"  directive translatable (GH-4473)
https://github.com/python/cpython/commit/c673a62d5f3c650130bf40f2161a2eac64419bce


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[issue32087] deprecated-removed directive generates overlapping msgids in .pot files

[INADA Naoki]

Change by INADA Naoki :


--
resolution:  -> fixed
stage: patch review -> resolved
status: open -> closed
versions: +Python 3.8

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[issue32087] deprecated-removed directive generates overlapping msgids in .pot files

[miss-islington]

miss-islington  added the comment:


New changeset dd52d5c868fb1eb33bcf22e777317de0391bfaf6 by Miss Islington (bot) 
in branch '3.6':
bpo-32087: Doc: Make "deprecated-removed"  directive translatable (GH-4473)
https://github.com/python/cpython/commit/dd52d5c868fb1eb33bcf22e777317de0391bfaf6


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[issue32916] IDLE: change 'str' to 'code' in idlelib.pyparse.PyParse and users

[Cheryl Sabella]

Change by Cheryl Sabella :


--
keywords: +patch
pull_requests: +5608
stage: needs patch -> patch review

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

[Einar Fredriksen]

New submission from Einar Fredriksen :

Add "G:\русский язык" to a pth file and start python. it fails with 

--
Failed to import the site module
Traceback (most recent call last):
  File "C:\Program Files\ROXAR\RMS 
dev_release\windows-amd64-vc_14_0-release\bin\lib\site.py", line 546, in 

main()
  File "C:\Program Files\ROXAR\RMS 
dev_release\windows-amd64-vc_14_0-release\bin\lib\site.py", line 532, in main
known_paths = addusersitepackages(known_paths)
  File "C:\Program Files\ROXAR\RMS 
dev_release\windows-amd64-vc_14_0-release\bin\lib\site.py", line 287, in 
addusersitepackages
addsitedir(user_site, known_paths)
  File "C:\Program Files\ROXAR\RMS 
dev_release\windows-amd64-vc_14_0-release\bin\lib\site.py", line 209, in 
addsitedir
addpackage(sitedir, name, known_paths)
  File "C:\Program Files\ROXAR\RMS 
dev_release\windows-amd64-vc_14_0-release\bin\lib\site.py", line 165, in 
addpackage
for n, line in enumerate(f):
  File "C:\Program Files\ROXAR\RMS 
dev_release\windows-amd64-vc_14_0-release\bin\lib\encodings\cp1252.py", line 
23, in decode
return codecs.charmap_decode(input,self.errors,decoding_table)[0]
UnicodeDecodeError: 'charmap' codec can't decode byte 0x81 in position 8: 
character maps to 


This might very well have sideeffects, but adding "encoding='utf-8'" to the 
open() call in site.py def addpackage seems to fix the issue for me

--
components: Unicode
messages: 312635
nosy: einaren, ezio.melotti, vstinner
priority: normal
severity: normal
status: open
title: .pth files cannot contain folders with utf-8 names
type: behavior
versions: Python 3.6

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[issue32922] dbm.open() encodes filename with default encoding rather than the filesystem encoding

[Josh Friend]

New submission from Josh Friend :

Armin Rigo from the PyPy project pointed this out to me: 
https://bitbucket.org/pypy/pypy/issues/2755/dbmopen-expects-a-str-for-filename-throws

This could probably lead to some weird behavior given the right filename

--
components: Library (Lib)
messages: 312636
nosy: Josh Friend
priority: normal
severity: normal
status: open
title: dbm.open() encodes filename with default encoding rather than the 
filesystem encoding
type: behavior
versions: Python 2.7, Python 3.6

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[issue32922] dbm.open() encodes filename with default encoding rather than the filesystem encoding

[Serhiy Storchaka]

Change by Serhiy Storchaka :


--
nosy: +serhiy.storchaka

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[issue32923] Typo in documentation of unittest: whilst instead of while

[Тимофей Хирьянов]

New submission from Тимофей Хирьянов :

Typo is on the https://docs.python.org/3/library/unittest.html page.

At bottom of the page you can see text: "unittest.removeHandler(function=None)
When called without arguments this function removes the control-c handler if it 
has been installed. This function can also be used as a test decorator to 
temporarily remove the handler whilst the test is being executed:"

Typo is: ST instead of E in the word "whilst".

--
assignee: docs@python
components: Documentation
messages: 312637
nosy: docs@python, Тимофей Хирьянов
priority: normal
severity: normal
status: open
title: Typo in documentation of unittest: whilst instead of while
versions: Python 3.6

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[issue32911] Doc strings no longer stored in body of AST

[ppperry]

Change by ppperry :


--
title: Doc strings omitted from AST -> Doc strings no longer stored in body of 
AST

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[issue32923] Typo in documentation of unittest: whilst instead of while

[Mark Dickinson]

Mark Dickinson  added the comment:

Not a typo: it's a valid English word.

http://dictionary.cambridge.org/grammar/british-grammar/linking-words-and-expressions/while-and-whilst

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[issue32901] Update 3.7 and 3.8 Windows and macOS installer builds to tcl/tk 8.6.8

[miss-islington]

Change by miss-islington :


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pull_requests: +5609

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[issue32901] Update 3.7 and 3.8 Windows and macOS installer builds to tcl/tk 8.6.8

[Steve Dower]

Steve Dower  added the comment:

The sources are just the original sources, so they could be useful on other 
platforms too.

The build on cpython-bin-deps is obviously only useful on Windows.

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[issue30028] make test.support.temp_cwd() fork-safe

[Gregory P. Smith]

Gregory P. Smith  added the comment:


New changeset 61bd4d2e6319a3c5c3b9ce5f807b44a45cc1d4a1 by Gregory P. Smith 
(Anselm Kruis) in branch '2.7':
[2.7] bpo-30028: make test.support.temp_cwd() fork-safe (GH-1066) (GH-5825)
https://github.com/python/cpython/commit/61bd4d2e6319a3c5c3b9ce5f807b44a45cc1d4a1


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[issue30028] make test.support.temp_cwd() fork-safe

[Gregory P. Smith]

Gregory P. Smith  added the comment:


New changeset 9c819a6a7d34594779fea3a25fd69ec5745e185e by Gregory P. Smith 
(Anselm Kruis) in branch '3.6':
[3.6] bpo-30028: make test.support.temp_cwd() fork-safe (GH-1066) (GH-5826)
https://github.com/python/cpython/commit/9c819a6a7d34594779fea3a25fd69ec5745e185e


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[issue30028] make test.support.temp_cwd() fork-safe

[Gregory P. Smith]

Change by Gregory P. Smith :


--
resolution:  -> fixed
stage: patch review -> commit review
status: open -> closed
versions: +Python 2.7, Python 3.8 -Python 3.5

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[issue32901] Update 3.7 and 3.8 Windows and macOS installer builds to tcl/tk 8.6.8

[Steve Dower]

Steve Dower  added the comment:


New changeset efa6c762268d68985f3012234f62ea9e5ced8b7c by Steve Dower in branch 
'master':
bpo-32901: Update Tcl and Tk versions to 8.6.8 (GH-5823)
https://github.com/python/cpython/commit/efa6c762268d68985f3012234f62ea9e5ced8b7c


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[issue32901] Update 3.7 and 3.8 Windows and macOS installer builds to tcl/tk 8.6.8

[miss-islington]

miss-islington  added the comment:


New changeset 74b73642596caa287ee59bf7901ca009606c24cc by Miss Islington (bot) 
in branch '3.7':
bpo-32901: Update Tcl and Tk versions to 8.6.8 (GH-5823)
https://github.com/python/cpython/commit/74b73642596caa287ee59bf7901ca009606c24cc


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[issue32923] Typo in documentation of unittest: whilst instead of while

[Mariatta Wijaya]

Mariatta Wijaya  added the comment:

`while` and `whilst` are both valid english words, however I can understand if 
readers who don't primarily speak english can get confused.

I'll be open to change that to `while` just to make it friendlier to 
international readers.

--
nosy: +Mariatta
versions: +Python 2.7, Python 3.7, Python 3.8

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[issue32924] Python 3.7 docs in docs.p.o points to GitHub's master branch

[Mariatta Wijaya]

New submission from Mariatta Wijaya :

When viewing Python 3.7 docs in docs.python.org, the show source link is 
pointing to the master branch on GitHub. It should point to the 3.7 branch.

I'm working on a fix, however this is something to we should remember doing 
when we go to 3.9+. 

Adding Python 3.8 and 3.9's release manager :)

--
assignee: Mariatta
components: Documentation
messages: 312645
nosy: Mariatta, lukasz.langa
priority: normal
severity: normal
status: open
title: Python 3.7 docs in docs.p.o points to GitHub's master branch
versions: Python 3.7, Python 3.8

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[issue25427] Remove the pyvenv script in Python 3.8

[Brett Cannon]

Brett Cannon  added the comment:

Oh, I haven't forgotten. :) This issue is the only one I have assigned to 
myself and been looking forward to ripping it out for over 2 years (might not 
get to it until the sprints at PyCon US, but I will definitely be ripping it 
out).

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[issue31355] Remove Travis CI macOS job: rely on buildbots

[Brett Cannon]

Brett Cannon  added the comment:

I'm willing to give it another go. Do you want to open a PR to turn it back on 
and see how the timing looks, Antoine?

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status: pending -> open

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[issue32922] dbm.open() encodes filename with default encoding rather than the filesystem encoding

[Serhiy Storchaka]

Change by Serhiy Storchaka :


--
assignee:  -> serhiy.storchaka

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[issue32923] Typo in documentation of unittest: whilst instead of while

[Eric V. Smith]

Eric V. Smith  added the comment:

Agree with Marietta: it's valid, but lets change it to make it more 
approachable to non-native speakers.

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[issue32922] dbm.open() encodes filename with default encoding rather than the filesystem encoding

[Serhiy Storchaka]

Change by Serhiy Storchaka :


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[issue32922] dbm.open() encodes filename with default encoding rather than the filesystem encoding

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:

PR 5832 fixes dbm.ndbm.open() and dbm.gdbm.open(). dbm.dumb.open() already used 
the filesystem encoding.

I don't think anything should be fixed in 2.7. Supporting Unicode filenames 
looks like a new feature.

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[issue32923] Typo in documentation of unittest: whilst instead of while

[Mariatta Wijaya]

Change by Mariatta Wijaya :


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[issue32924] Python 3.7 docs in docs.p.o points to GitHub's master branch

[Mariatta Wijaya]

Change by Mariatta Wijaya :


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[issue32923] Typo in documentation of unittest: whilst instead of while

[Mark Dickinson]

Mark Dickinson  added the comment:

> lets change it to make it more approachable to non-native speakers.

Sounds good to me.

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[issue32820] Add __format__ method to ipaddress

[Eric V. Smith]

Eric V. Smith  added the comment:

I'd like 's' to be supported, and just be passed to format(str(self), fmt) (or 
some alternate spelling for the same thing).

My use case is to format tables including addresses:

print(f'{addr:20s} {hostname}')

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[issue20928] xml.etree.ElementInclude does not include nested xincludes

[Stefan Behnel]

Stefan Behnel  added the comment:

I've added a 'max_depth' argument to limit the maximum recursive include depth 
to 6 by default (which is a small, arbitrarily chosen value). Users can set it 
to None to disable the limit.

>From my side, I don't see any more features that I would add.
@ruffsl: feel free to open a new ticket if you feel like anything is missing 
that is not covered by the scope of this one.

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[issue32923] Typo in documentation of unittest: whilst instead of while

[Mariatta Wijaya]

Mariatta Wijaya  added the comment:


New changeset 98f42aac23f3863973cb6e9964c5212cfd3a1d98 by Mariatta in branch 
'master':
bpo-32923: Unittest doc: replace `whilst` with `while` (GH-5833)
https://github.com/python/cpython/commit/98f42aac23f3863973cb6e9964c5212cfd3a1d98


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[issue32820] Add __format__ method to ipaddress

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:

You always can use f'{addr!s:20}'.

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[issue32923] Typo in documentation of unittest: whilst instead of while

[miss-islington]

Change by miss-islington :


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[issue32923] Typo in documentation of unittest: whilst instead of while

[miss-islington]

Change by miss-islington :


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[issue32923] Typo in documentation of unittest: whilst instead of while

[miss-islington]

Change by miss-islington :


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[issue17232] Improve -O docs

[Cheryl Sabella]

Change by Cheryl Sabella :


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[issue32924] Python 3.7 docs in docs.p.o points to GitHub's master branch

[Mariatta Wijaya]

Mariatta Wijaya  added the comment:


New changeset 079d75d099f228a4261f63a94217571e05e8fa8e by Mariatta in branch 
'3.7':
bpo-32924: Fix the Show Source url in the docs. (GH-5835)
https://github.com/python/cpython/commit/079d75d099f228a4261f63a94217571e05e8fa8e


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[issue32924] Python 3.7 docs in docs.p.o points to GitHub's master branch

[Mariatta Wijaya]

Mariatta Wijaya  added the comment:

The link has been fixed, it affects 3.7 branch only.

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[issue32923] Typo in documentation of unittest: whilst instead of while

[Mariatta Wijaya]

Mariatta Wijaya  added the comment:

Thanks! I've fixed it on master, the backports have been initiated and will 
finish automatically.

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[issue17232] Improve -O docs

[Cheryl Sabella]

Cheryl Sabella  added the comment:

I've made a PR and tried to integrate the changes from PEP 488.

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[issue32923] Typo in documentation of unittest: whilst instead of while

[miss-islington]

miss-islington  added the comment:


New changeset 1ad6ca5eb95ebb7351e0f5d9ce607dec54de6407 by Miss Islington (bot) 
in branch '3.7':
bpo-32923: Unittest doc: replace `whilst` with `while` (GH-5833)
https://github.com/python/cpython/commit/1ad6ca5eb95ebb7351e0f5d9ce607dec54de6407


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[issue32304] Upload failed (400): Digests do not match on .tar.gz ending with x0d binary code

[Éric Araujo]

Éric Araujo  added the comment:

3.5 only accepts security fixes:
https://devguide.python.org/#status-of-python-branches

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[issue32923] Typo in documentation of unittest: whilst instead of while

[miss-islington]

miss-islington  added the comment:


New changeset cffe0467ab7b164739693598826bd3860f01b11f by Miss Islington (bot) 
in branch '3.6':
bpo-32923: Unittest doc: replace `whilst` with `while` (GH-5833)
https://github.com/python/cpython/commit/cffe0467ab7b164739693598826bd3860f01b11f


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[issue32923] Typo in documentation of unittest: whilst instead of while

[miss-islington]

miss-islington  added the comment:


New changeset 8a7f1f4b0ffddf230864ebf16b481546970dd9c2 by Miss Islington (bot) 
in branch '2.7':
bpo-32923: Unittest doc: replace `whilst` with `while` (GH-5833)
https://github.com/python/cpython/commit/8a7f1f4b0ffddf230864ebf16b481546970dd9c2


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[issue32820] Add __format__ method to ipaddress

[Eric V. Smith]

Eric V. Smith  added the comment:

True enough. You'd think that I (of all people!) would know that. Nevermind.

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[issue32304] Upload failed (400): Digests do not match on .tar.gz ending with x0d binary code

[Éric Araujo]

Change by Éric Araujo :


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[issue32922] dbm.open() encodes filename with default encoding rather than the filesystem encoding

[Armin Rigo]

Armin Rigo  added the comment:

It's not a new feature.  See for example all functions from posixmodule.c: it 
should at least be PyArg_ParseTuple(args, "et", Py_FileSystemDefaultEncoding, 
&char_star_variable).

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[issue32838] Fix Python versions in the table of magic numbers

[miss-islington]

miss-islington  added the comment:


New changeset 8d9d4b57ae57baee4401cab6067ef22c0172661d by Miss Islington (bot) 
in branch '3.7':
bpo-32838: Fix Python versions in the table of magic numbers. (GH-5658)
https://github.com/python/cpython/commit/8d9d4b57ae57baee4401cab6067ef22c0172661d


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[issue32915] Running Python 2 with -3 flag doesn't complain about cmp/__cmp__

[Raymond Hettinger]

Raymond Hettinger  added the comment:

The stated goal of -3 is "warn about Python 3.x incompatibilities that 2to3 
cannot trivially fix", so this use case seems like a good match.

On the other hand, adding this to -3 would be somewhat noisy since __cmp__ is 
pervasive in 2.7.

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[issue32820] Add __format__ method to ipaddress

[Eric Osborne]

Eric Osborne  added the comment:

I dunno, I think this might be useful.  A binary representation is itself a
string, and takes formatting as such (ditto for hex, as hex(int()) returns
a string:

In [20]: a
Out[20]: IPv4Address('1.2.3.4')

In [92]: f'{a}'
Out[92]: '1.2.3.4'

In [21]: int(a)
Out[21]: 16909060

In [22]: f'{bin(int(a)):42s}'
Out[22]: '0b1001000110100   '

In [24]: f'{a:b}'
Out[24]: '0001001000110100'

In [25]: f'{a:b42s}'
Out[25]: '1.2.3.4'

That last one should return '1001000110100'.  I was
worried about going down a really deep rabbit hole trying to support a lot
of string format stuff with no use case, but there's not much more which
could be done which makes any sense.  's' seems reasonable.

My current code supports [b, x, n] integer presentation types.  I need to
add [X], that's just an oversight.  Supporting [b, x, X, n] means that an
IP address is considered an integer, and should get the subset of integer
presentations which make sense. Not the full set - neither octal nor
character are good fits.  But support for some sort of alignment padding
seems reasonable.  Consider:

In [61]: f'{42:30}'
Out[61]: '42'

In [62]: f'{int(a):30}'
Out[62]: '  16909060'

In [63]: f'{a:30}'
Out[63]: '1.2.3.4'

In [66]: f'{a:42b}'
Out[66]: '0001001000110100'

Those last two seem odd.  I think f'{a:30}' should return the same thing as
this:

In [69]: f'{str(a):30}'
Out[69]: '1.2.3.4   '

and f'{a:42b'} should return the same thing as this:

In [77]: f'{bin(int(a)):42}'
Out[77]: '0b1001000110100   '

This also means supporting [>,<,^] alignment.  And, of course, ignoring any
length spec too short, as is done with regular integer formatting:

In [86]: b
Out[86]: 16909060

In [87]: f'{b:6}'
Out[87]: '16909060'

Thoughts?

eric

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[issue32901] Update 3.7 and 3.8 Windows and macOS installer builds to tcl/tk 8.6.8

[Steve Dower]

Steve Dower  added the comment:

Windows is complete - leaving this open for Ned to resolve when the Mac 
installers are done.

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[issue32901] Update 3.7 and 3.8 Windows and macOS installer builds to tcl/tk 8.6.8

[Terry J. Reedy]

Terry J. Reedy  added the comment:

New build with 8.6.8 seems to work fine on my machine.  Thanks.

I noticed that 'fetching tcl/tk 8.6.8' downloaded a pre-built binary instead of 
sources to build on my machine.  Nice.

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[issue32915] Running Python 2 with -3 flag doesn't complain about cmp/__cmp__

[Ned Deily]

Change by Ned Deily :


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[issue32925] AST optimizer: Change a list into tuple in iterations and containment tests

[Serhiy Storchaka]

New submission from Serhiy Storchaka :

Currently a list of constants is replaced with constant tuple in `x in [1, 2]` 
and `for x in [1, 2]`. The resulted AST is the same as for `x in (1, 2)` and 
`for x in (1, 2)`.

The proposed simple PR extends this optimization to lists containing 
non-constants. `x in [a, b]` will be changed into `x in (a, b)` and `for x in 
[a, b]` will be changed into `for x in (a, b)`. Since creating a tuple is 
faster than creating a list the latter form is a tiny bit faster.

$ ./python -m timeit -s 'a, b = 1, 2' -- 'for x in [a, b]: pass'
500 loops, best of 5: 93.6 nsec per loop

$ ./python -m timeit -s 'a, b = 1, 2' -- 'for x in (a, b): pass'
500 loops, best of 5: 74.3 nsec per loop

./python -m timeit -s 'a, b = 1, 2' -- '1 in [a, b]'
500 loops, best of 5: 58.9 nsec per loop

$ ./python -m timeit -s 'a, b = 1, 2' -- '1 in (a, b)'
1000 loops, best of 5: 39.3 nsec per loop

--
components: Interpreter Core
messages: 312670
nosy: benjamin.peterson, brett.cannon, ncoghlan, serhiy.storchaka, yselivanov
priority: normal
severity: normal
status: open
title: AST optimizer: Change a list into tuple in iterations and containment 
tests
type: performance
versions: Python 3.8

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[issue32926] Add public TestCase method/property to get result of current test

[Victor Engmark]

New submission from Victor Engmark :

The community has come up with multiple hacks [1] to be able to inspect the 
current test result in tearDown (to collect more expensive diagnostics only 
when the test fails). It would be great to have a documented and simple way to 
check whether the test currently in play was successful. To be clear, 
TestCase.wasSuccessful() is not useful in this case, since it only reports 
whether all tests run so far were successful.

[1] https://stackoverflow.com/q/4414234/96588

--
messages: 312671
nosy: Victor Engmark
priority: normal
severity: normal
status: open
title: Add public TestCase method/property to get result of current test
type: enhancement

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[issue32927] Add typeshed documentation for unittest.TestCase._feedErrorsToResult and ._outcome

[Victor Engmark]

New submission from Victor Engmark :

Until and unless #32926 is fixed it would be good to be able to type inspect 
code which uses the currently least hacky way to inspect the result of the 
current test [1]. This requires the use of TestCase._feedErrorsToResult and 
TestCase._outcome.

[1]: https://stackoverflow.com/a/39606065/96588

--
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nosy: Victor Engmark
priority: normal
severity: normal
status: open
title: Add typeshed documentation for unittest.TestCase._feedErrorsToResult and 
._outcome
type: enhancement

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[issue32925] AST optimizer: Change a list into tuple in iterations and containment tests

[Serhiy Storchaka]

Change by Serhiy Storchaka :


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[issue32928] _findvs failing on Windows 10 (Release build only)

[William Pickard]

New submission from William Pickard :

The distutils module _findvs is failing on my Windows 10 PRO machine with the 
following error: OSError: Error 80070002

Note: Building Python 3.6 in debug for some reason doesn't cause the error.

--
components: Distutils, Extension Modules, Library (Lib), Windows
messages: 312673
nosy: WildCard65, dstufft, eric.araujo, paul.moore, steve.dower, tim.golden, 
zach.ware
priority: normal
severity: normal
status: open
title: _findvs failing on Windows 10 (Release build only)
type: crash
versions: Python 3.6, Python 3.7, Python 3.8

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[issue32861] urllib.robotparser: incomplete __str__ methods

[Terry J. Reedy]

Change by Terry J. Reedy :


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[issue32867] argparse assertion failure with multiline metavars

[Terry J. Reedy]

Terry J. Reedy  added the comment:

I don't understand the -h (display help part) but pasting code into repository 
3.8 IDLE editor and running, I get same traceback.

Never having used argparse, I don't know if a multiline metavar is expected to 
work.  Assuming so, can you suggest a fix?

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[issue32875] Add __exit__() method to event loops

[Terry J. Reedy]

Terry J. Reedy  added the comment:

Enhancements only go in future releases not yet in beta.

Do loops already have an __enter__ method, also required for with?  What would 
you have the close method do?  Preemptorially cancel all tasks and close the 
loop?  With statement are usually for ensuring deterministic cleanup after the 
last substatement, such as closing a file.  Can you give a short usage example?

--
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[issue32877] Login to bugs.python.org with Google account NOT working

[Terry J. Reedy]

Terry J. Reedy  added the comment:

This is similar to #29544.  As the reply there indicates, this tracker (for 
issues with the cpython repository) is the wrong place for issues about the 
tracker.  Click Report Tracker Problem on the left sidebar.

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stage:  -> resolved
status: open -> closed

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[issue32875] Add __exit__() method to event loops

[Martin Panter]

Martin Panter  added the comment:

Maybe already discussed in Issue 24795?

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superseder:  -> Make event loops with statement context managers

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[issue32928] _findvs failing on Windows 10 (Release build only)

[Steve Dower]

Steve Dower  added the comment:

You mean build? Or use?

Can you share build logs?

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[issue32928] _findvs failing on Windows 10 (Release build only)

[William Pickard]

William Pickard  added the comment:

Use, when distutils calls findall in the module, it results in the OSError 
being thrown.

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[issue32867] argparse assertion failure with multiline metavars

[Martin Panter]

Martin Panter  added the comment:

This looks like the same assertion failure as described in Issue 16360. Paul 
pointed to a patch in Issue 11874, so that may also be relevant.

However I agree that embedding newlines in a metavar doesn’t make much sense. 
What’s the use case?

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[issue28134] socket.socket(fileno=fd) does not work as documented

[YoSTEALTH]

YoSTEALTH  added the comment:

I am using 3.7.0b1 i don't think this issue is fixed!

# simple mockup:
# --
def accept(sock):
client, addr = sock.accept()
inside = socket(fileno=client.fileno())
print(inside)
# <__main__.Socket fd=5, family=AddressFamily.AF_INET, 
type=SocketKind.SOCK_STREAM, proto=6, laddr=('127.0.0.1', 8000), 
raddr=('127.0.0.1', 42532)>
return inside

outside = accept(sock)
print(outside)
# <__main__.Socket fd=5, family=AddressFamily.AF_INET, 
type=SocketKind.SOCK_STREAM, proto=6>


So the "laddr" and "raddr" goes missing the second its out of the function???

This has wasted days of my time, to even get to this point of figuring out 
whats going on wasn't easy! extremely frustrating.

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nosy: +YoSTEALTH

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[issue32926] Add public TestCase method/property to get result of current test

[ppperry]

Change by ppperry :


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versions: +Python 3.8

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[issue32926] Add public TestCase method/property to get result of current test

[ppperry]

Change by ppperry :


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components: +Library (Lib)

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[issue32893] ast.literal_eval() shouldn't accept booleans as numbers in AST

[Terry J. Reedy]

Terry J. Reedy  added the comment:

It is true that 'True' and 'False' are not literally literals.  But as pre- and 
fixedly bound names, they function for Bool the same as 0 and 1 do for int.

Besides this, ast.literal_eval is not now limited to literal evaluation, but 
does compile-time computation of some constant expressions, in particular even 
nested tuples like '(1, (2, (3, (4,5' or '(False, (True, False))' and even 
some expressions yielding mutable objects, like '[1,2]' (see below).  
'safe_eval' might be a better name now.

The benefit of compressing 'True+True' to 2 at compile time is the same as 
compressing '1+1' to 2. Given what literal_eval actually is now, it is 
surprising and to me confusing that this is rejected, while a tuple with 
booleans is accepted (as it should be!).  It is also a bug relative to the doc:

"The string or node provided may only consist of the following Python literal 
structures: strings, bytes, numbers, tuples, lists, dicts, sets, *booleans*, 
and None." [*s added]

So I think this issue should be flipped to "ast.literal_eval should 
consistently accept False and True" and marked as a bugfix.

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nosy: +terry.reedy

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[issue32867] argparse assertion failure with multiline metavars

[MaT1g3R]

MaT1g3R  added the comment:

I tried to include line breaks for listing options for a positional argument.

The default metavar for that is something like {opt1, opt2, op3},
however I wanted it to display the options on separate lines.

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[issue32893] ast.literal_eval() shouldn't accept booleans as numbers in AST

[Terry J. Reedy]

Change by Terry J. Reedy :


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Removed message: https://bugs.python.org/msg312682

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[issue28134] socket.socket(fileno=fd) does not work as documented

[Christian Heimes]

Christian Heimes  added the comment:

The problem is fixed and your example behaves as expected.

The laddr string is the result of inside.getsockname() and raddr string is the 
result of inside.getpeername(). In your example, inside and client share the 
same file descriptor. When the function exits client goes out of scope, the 
reference count of client drops to 0, the object gets deallocated and Python 
closes the shared file descriptor. In outside, the shared fd is gone and 
outside.getsockname() and outside.getpeername() fail. Basically the outside 
socket is dead because its fd has been closed.

You have to duplicate the fd or detach the socket to keep the fd open.

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[issue28414] SSL match_hostname fails for internationalized domain names

[Nathaniel Smith]

Nathaniel Smith  added the comment:


New changeset 11a1493bc4198f1def5e572049485779cf54dc57 by Nathaniel J. Smith 
(Christian Heimes) in branch 'master':
[bpo-28414] Make all hostnames in SSL module IDN A-labels (GH-5128)
https://github.com/python/cpython/commit/11a1493bc4198f1def5e572049485779cf54dc57


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[issue28414] SSL match_hostname fails for internationalized domain names

[miss-islington]

Change by miss-islington :


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pull_requests: +5618

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[issue32929] Change dataclasses hashing to use unsafe_hash boolean (default to False)

[Eric V. Smith]

New submission from Eric V. Smith :

See https://mail.python.org/pipermail/python-dev/2018-February/152150.html for 
a discussion.

This will remove the @dataclass hash= tri-state parameter, and replace it with 
an unsafe_hash= boolean-only parameter.

>From that thread:

"""
I propose that with @dataclass(unsafe_hash=False) (the default), a __hash__
method is added when the following conditions are true:

- frozen=True (not the default)
- compare=True (the default)
- no __hash__ method is defined in the class

If we instead use @dataclass(unsafe_hash=True), a __hash__ will be added
regardless of the other flags, but if a __hash__ method is present, an
exception is raised.

Other values (e.g. unsafe_hash=None) are illegal for this flag.
"""

--
assignee: eric.smith
components: Library (Lib)
messages: 312686
nosy: eric.smith, ned.deily
priority: release blocker
severity: normal
status: open
title: Change dataclasses hashing to use unsafe_hash boolean (default to False)
type: behavior
versions: Python 3.7

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[issue32893] ast.literal_eval() shouldn't accept booleans as numbers in AST

[Terry J. Reedy]

Terry J. Reedy  added the comment:

Whoops, my previous response was wrong as written because I wrongly thought 
that if literal_eval accepts number_literal + imaginary_literal, it would also 
accept number_literal + number_literal. I am replacing it with the following.

The ast.literal_eval doc says 
"The string or node provided may only consist of the following Python literal 
structures: strings, bytes, numbers, tuples, lists, dicts, sets, booleans, and 
None."

Since 'True', '(True,)', '[True]', '{True:True}', '+1', '-1' and '1+1j' are 
accepted as 'literal structures', it seems arbitrary that at least '+True' and 
'True+1j' are not.  ('+1', '1+1j' and especially '-1' seem to violate the 
limitations to 'literal', 'container', and 'no operator', but that is a 
different issue.)

I strongly agree that the acceptable string inputs and acceptable AST inputs 
should match.  The question is which version of the domain should be changed.  
I would at least mildly prefer that the issue be "ast.literal_eval should 
consistly treat False and True the same as 0 and 1.", which means expanding the 
string version.  As Raymond said, this is the general rule in Python.  What is 
the benefit of having a different rule for this one function?

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[issue32929] Change dataclasses hashing to use unsafe_hash boolean (default to False)

[Steven D'Aprano]

Steven D'Aprano  added the comment:

This is a truly awful name, there's nothing unsafe about the hash 
parameter. We rightly hesitate to label *actual* unsafe functions, like 
eval and exec, with that name. Are we committed to this name?

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nosy: +steven.daprano

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[issue32930] [help][webbrowser always opens new tab. I want to open in the same tab]

[Tommy]

New submission from Tommy :

Dear manager,

I'm just starting python and trying to make simple web application.
As above title, I just want to open webbrowser at first and then just change 
web-address in the same tab, but whenever I try webbrowser.open, it always open 
new tab or new window.
When I checked webbrowser-control options on python help page, it says 
webbrowser.open's 2nd argument can control window opening. but it did not work 
well in my tries. following is my test code.

#1st try
import webbrowser
url = 'www.google.com'
webbrowser.open(url, new=0) # this open new explorer window.

#wait

#2nd try
webbrowser.open(url, new=0) # this open new explorer window again.

In my test, I test 2nd argument from 0 to 2, but there seems no change.
always opens new tab.

Is there any way to change address and open in the current opened browser 
window?

best Regards,
Tommy

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components: Windows
messages: 312689
nosy: paul.moore, steve.dower, tim.golden, tommylim1...@naver.com, zach.ware
priority: normal
severity: normal
status: open
title: [help][webbrowser always opens new tab. I want to open in the same tab]
versions: Python 3.6

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[issue32907] pathlib: test_resolve_common fails on Windows w/ longusername

[Terry J. Reedy]

Change by Terry J. Reedy :


--
title: pathlib: test_resolve_common fails on Windows -> pathlib: 
test_resolve_common fails on Windows w/ longusername

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[issue32930] [help][webbrowser always opens new tab. I want to open in the same tab]

[Tommy]

Change by Tommy :


--
components: +Library (Lib), macOS
nosy: +ned.deily, ronaldoussoren

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