[issue34296] Speed up python startup by pre-warming the vm

[Barry A. Warsaw]

Change by Barry A. Warsaw :


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[issue34256] Python treats ASCII record separator ('\x1e') as a newline

[Martin Panter]

Martin Panter  added the comment:

What documentation were you looking at? I remember adding 0x1E and others to 
the list in Issue 12855. See 
:

‘‘‘
str.splitlines([keepends])
  . . .
  
  This method splits on the following line boundaries. . . .
  
  Representation  Description
  ==  ===
  . . .
  \x1eRecord Separator
  . . .
’’’

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[issue34325] test_zipfile gets OverflowError in multiple buildbots

[STINNER Victor]

STINNER Victor  added the comment:

A possible enhancement is to mock os.stat() instead of really modifying the 
real filesystem modification time, it would allow to test the bug on any 
platform. But I'm not sure that it's worth it, and if anyone is interested, I 
would suggest to discuss on bpo-34097.

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[issue34325] test_zipfile gets OverflowError in multiple buildbots

[STINNER Victor]

STINNER Victor  added the comment:

The two buildbots are back to green.

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

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[issue34097] ZIP does not support timestamps before 1980

[STINNER Victor]

STINNER Victor  added the comment:

> Tests are failed on some buildbots. See issue34325.

Marcel Plch already fixed it: commit 7b41dbad78c6b03ca2f98800a92a1977d3946643. 
The two buildbots are back to green.

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[issue34326] test_subprocess.POSIXProcessTestCase fails in AMD64 Ubuntu 3.x

[Stéphane Wirtel]

Change by Stéphane Wirtel :


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[issue34297] Windows py.exe launcher fail to handle quote correctly

[Terry J. Reedy]

Terry J. Reedy  added the comment:

I verified this much:
F:\dev\37>py "-3" -m test.test_idle
(null): can't open file '3 -m test.test_idle': [Errno 2] No such file or 
directory

--
components:  -Demos and Tools, Distutils
nosy: +eryksun, terry.reedy -dstufft, eric.araujo
stage:  -> test needed
versions:  -Python 2.7, Python 3.4, Python 3.5

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[issue34326] test_subprocess.POSIXProcessTestCase fails in AMD64 Ubuntu 3.x

[Stéphane Wirtel]

Stéphane Wirtel  added the comment:

Thanks Victor, I don't know enough the API C-Python :/

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[issue34296] Speed up python startup by pre-warming the vm

[Terry J. Reedy]

Terry J. Reedy  added the comment:

We are aware that startup time is a issue, especially for quick scripts.  I 
don't know if your ideas have been considered, so I added a couple of people 
who might.  The python-ideas list would likely be a better place for discussion 
until there is some idea about a concrete patch.

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type: enhancement -> performance

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[issue30317] test_timeout() of test_multiprocessing_spawn.WithManagerTestBarrier fails randomly on x86 Windows7 3.x buildbot

[STINNER Victor]

STINNER Victor  added the comment:

Oh. Now I understand why I'm confused. _test_multiprocessing.py in master has 
not less than 5 methods with the same name: test_timeout()!

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[issue34286] lib2to3 tests fail on the 3.7 branch (used to work with 3.7.0)

[Terry J. Reedy]

Terry J. Reedy  added the comment:

test_lib2to3 passes for me on Win 10 for both installed 3.7.0 (in home 
directory) and repository 3.7 (in clone directory) compiled yesterday.

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[issue34331] Incorrectly pluralized abstract class error message

[Eric V. Smith]

Eric V. Smith  added the comment:

Actually, this one is probably easier to fix. In my opinion, #34127 is more 
important to fix, since it's seen much more often than the message about 
abstract base classes.

I wouldn't necessarily object to fixing this one, I just personally think it's 
not worth the hassle.

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[issue34279] RFC: issue a warning in regrtest when no tests have been executed?

[Terry J. Reedy]

Terry J. Reedy  added the comment:

A test file that runs no test functions should pass on the buildbots.  (If it 
imports the target file, it is not completely empty.  And I can think of a use 
case for WIP PRs that intentionally do not run anything.)  

But I also would like a visually different display, having been fooled more 
than once. For one thing, one can omit '(unittest.testCase)' from test class 
definitions ;-).

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[issue34171] Lib/trace.cover not removed by the clean target

[Berker Peksag]

Change by Berker Peksag :


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[issue34170] Py_Initialize(): computing path configuration must not have side effect (PEP 432)

[STINNER Victor]

STINNER Victor  added the comment:


New changeset d8078626770a8d358eb83d7928c12d75ff4e821a by Victor Stinner in 
branch 'master':
bpo-34170: Fix pymain_run_file() (GH-8660)
https://github.com/python/cpython/commit/d8078626770a8d358eb83d7928c12d75ff4e821a


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[issue34326] test_subprocess.POSIXProcessTestCase fails in AMD64 Ubuntu 3.x

[STINNER Victor]

STINNER Victor  added the comment:


New changeset d8078626770a8d358eb83d7928c12d75ff4e821a by Victor Stinner in 
branch 'master':
bpo-34170: Fix pymain_run_file() (GH-8660)
https://github.com/python/cpython/commit/d8078626770a8d358eb83d7928c12d75ff4e821a


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[issue34329] Document how to remove a suffix with pathlib.Path.with_suffix

[Berker Peksag]

Change by Berker Peksag :


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[issue34329] Document how to remove a suffix with pathlib.Path.with_suffix

[Berker Peksag]

Berker Peksag  added the comment:


New changeset 39fcd9949832323b672f7ff05fd1498b8844a329 by Berker Peksag (Miss 
Islington (bot)) in branch '3.7':
bpo-34329: Doc'd how to remove suffix of pathlib.Path() (GH-8655)
https://github.com/python/cpython/commit/39fcd9949832323b672f7ff05fd1498b8844a329


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[issue34329] Document how to remove a suffix with pathlib.Path.with_suffix

[Berker Peksag]

Berker Peksag  added the comment:


New changeset 764f9d09b03654d7cd70d59afafafd51d24f2750 by Berker Peksag (Miss 
Islington (bot)) in branch '3.6':
bpo-34329: Doc'd how to remove suffix of pathlib.Path() (GH-8655)
https://github.com/python/cpython/commit/764f9d09b03654d7cd70d59afafafd51d24f2750


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[issue32073] Add copy_directory_metadata parameter to shutil.copytree

[desbma]

desbma  added the comment:

copy2 always raises "OSError: [Errno 95] Operation not supported" here 
https://github.com/python/cpython/blob/9bb6fe52742340f6c92f0dda18599a4577a94e18/Lib/shutil.py#L258
 but I can work around that by passing copy_function=shutil.copy to copytree as 
I did above.

The problem is that there is currently no way to avoid the copystat call made 
on the directory itself.

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[issue31908] trace module cli does not write cover files

[Berker Peksag]

Change by Berker Peksag :


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[issue26818] trace CLI doesn't respect -s option

[Berker Peksag]

Change by Berker Peksag :


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[issue32073] Add copy_directory_metadata parameter to shutil.copytree

[Giampaolo Rodola']

Giampaolo Rodola'  added the comment:

It's not clear where the exception originates from. Try to use copy2() instead 
of copytree().

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[issue34273] %f is confusingly associated with fixed point format

[Terry J. Reedy]

Terry J. Reedy  added the comment:

The closest anchor is 
https://docs.python.org/3.8/library/string.html#format-specification-mini-language.

The table title is "The available presentation types for floating point and 
decimal values are:".

This is slightly confusing to me.  Does this mean instances of 'float' and 
'decimal' classes?  or 'floating point numbers (floats and decimals)  and 
integral numbers, sometimes called decimals since usually written with decimal 
digits'?

Within the table, 'number' refers to whatever the title refers to. So I think 
adding '(floating point)' would be confusing and wrong, as it excludes 
'decimals' whatever they are.  On the other hand, changing 'Fixed point' to 
'Fixed point notation', in parallel with 'Exponential notation', is correct and 
should be helpful.

--
nosy: +terry.reedy
stage:  -> needs patch
versions: +Python 2.7, Python 3.6, Python 3.7, Python 3.8

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[issue32773] distutils should NOT preserve timestamps

[Jeroen Demeyer]

Jeroen Demeyer  added the comment:

I started a discussion at 
https://mail.python.org/mm3/archives/list/distutils-...@python.org/thread/4FHEGHZYWCDRWVPGYLAU5VUS5BAX73MO/

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[issue34333] Path.with_suffix() raises TypeError when doing %-formatting

[Berker Peksag]

Change by Berker Peksag :


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[issue34333] Path.with_suffix() raises TypeError when doing %-formatting

[Berker Peksag]

New submission from Berker Peksag :

import pathlib

path = pathlib.Path('TR')
with_suffix = path.with_suffix(('/', '.md'))

The snippet I shared above will raise:

TypeError: not all arguments converted during string formatting

While we are relying on duck typing, I think this can be considered as a bug in 
this case.

--
assignee: berker.peksag
components: Library (Lib)
messages: 323078
nosy: berker.peksag, pitrou
priority: normal
severity: normal
stage: needs patch
status: open
title: Path.with_suffix() raises TypeError when doing %-formatting
type: behavior
versions: Python 3.6, Python 3.7, Python 3.8

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[issue30317] test_timeout() of test_multiprocessing_spawn.WithManagerTestBarrier fails randomly on x86 Windows7 3.x buildbot

[Pablo Galindo Salgado]

Pablo Galindo Salgado  added the comment:


New changeset f0e3da8814259283e8f3d53ad3d9735ffc273e00 by Pablo Galindo in 
branch '3.6':
bpo-30317: Fix multiprocessing test_timeout() (GH-8621)
https://github.com/python/cpython/commit/f0e3da8814259283e8f3d53ad3d9735ffc273e00


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[issue32073] Add copy_directory_metadata parameter to shutil.copytree

[desbma]

desbma  added the comment:

Note that in the examples above both copytree calls actually succeed (only 
metadata copy failed).

The user can disable file metadata copy by passing 'copy_function=shutil.copy', 
but there is no way to do the same for directories and the directory copystat 
call 
https://github.com/python/cpython/blob/9bb6fe52742340f6c92f0dda18599a4577a94e18/Lib/shutil.py#L353
 fails.

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[issue32073] Add copy_directory_metadata parameter to shutil.copytree

[desbma]

desbma  added the comment:

Traceback is not very useful in that case:

mkdir /tmp/a
touch /tmp/a/b 

python
Python 3.6.6 (default, Jun 27 2018, 13:11:40) 
[GCC 8.1.1 20180531] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import os, shutil
>>> os.getcwd()
'/run/user/1000/gvfs/mtp:host=%5Busb%3A001%2C006%5D/sdcard1'
>>> shutil.copytree("/tmp/a", os.path.join(os.getcwd(), "test"))
Traceback (most recent call last):
  File "", line 1, in 
  File "/home/desbma/py-venvs/main/lib/python3.6/shutil.py", line 359, in 
copytree
raise Error(errors)
shutil.Error: [('/tmp/a/b', 
'/run/user/1000/gvfs/mtp:host=%5Busb%3A001%2C006%5D/sdcard1/test/b', '[Errno 
95] Operation not supported'), ('/tmp/a', 
'/run/user/1000/gvfs/mtp:host=%5Busb%3A001%2C006%5D/sdcard1/test', '[Errno 95] 
Operation not supported')]
>>> shutil.copytree("/tmp/a", os.path.join(os.getcwd(), "test2"), 
>>> copy_function=shutil.copy)
Traceback (most recent call last):
  File "", line 1, in 
  File "/home/desbma/py-venvs/main/lib/python3.6/shutil.py", line 359, in 
copytree
raise Error(errors)
shutil.Error: [('/tmp/a/b', 
'/run/user/1000/gvfs/mtp:host=%5Busb%3A001%2C006%5D/sdcard1/test2/b', "[Errno 
95] Operation not supported: 
'/run/user/1000/gvfs/mtp:host=%5Busb%3A001%2C006%5D/sdcard1/test2/b'"), 
('/tmp/a', '/run/user/1000/gvfs/mtp:host=%5Busb%3A001%2C006%5D/sdcard1/test2', 
'[Errno 95] Operation not supported')]

The exception is thrown from here 
https://github.com/python/cpython/blob/9bb6fe52742340f6c92f0dda18599a4577a94e18/Lib/shutil.py#L359

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[issue34329] Document how to remove a suffix with pathlib.Path.with_suffix

[miss-islington]

Change by miss-islington :


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[issue34329] Document how to remove a suffix with pathlib.Path.with_suffix

[miss-islington]

Change by miss-islington :


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[issue34329] Document how to remove a suffix with pathlib.Path.with_suffix

[Berker Peksag]

Berker Peksag  added the comment:


New changeset 46dc4e34ed8005a688d7f3512844ef227a3465f4 by Berker Peksag (Stefan 
Otte) in branch 'master':
bpo-34329: Doc'd how to remove suffix of pathlib.Path() (GH-8655)
https://github.com/python/cpython/commit/46dc4e34ed8005a688d7f3512844ef227a3465f4


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[issue34170] Py_Initialize(): computing path configuration must not have side effect (PEP 432)

[STINNER Victor]

STINNER Victor  added the comment:


New changeset 5a953fd0ab4d0f792f4c1537616b2ce8ee40d976 by Victor Stinner in 
branch 'master':
bpo-34170: _PyCoreConfig_Read() don't replace coerce_c_locale (GH-8658)
https://github.com/python/cpython/commit/5a953fd0ab4d0f792f4c1537616b2ce8ee40d976


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[issue34331] Incorrectly pluralized abstract class error message

[ppperry]

ppperry  added the comment:

No, this isn't causing me an actual problem, however the related issue34127 was 
accepted, and this one should be no harder to fix.

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[issue34170] Py_Initialize(): computing path configuration must not have side effect (PEP 432)

[STINNER Victor]

Change by STINNER Victor :


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[issue34326] test_subprocess.POSIXProcessTestCase fails in AMD64 Ubuntu 3.x

[STINNER Victor]

Change by STINNER Victor :


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[issue34331] Incorrectly pluralized abstract class error message

[Eric V. Smith]

Eric V. Smith  added the comment:

I'm not sure the effort and code is justified for a trivial fix to an error 
message. Is this causing some actual problem?

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[issue34247] PYTHONOPTIMZE ignored in 3.7.0 when using custom launcher

[STINNER Victor]

STINNER Victor  added the comment:

I tested manually attached t.c with PR 8659: I get optimize=2 as expected. Full 
output:

sys.flags(debug=0, inspect=0, interactive=0, optimize=2, dont_write_bytecode=0, 
no_user_site=0, no_site=0, ignore_environment=0, verbose=0, bytes_warning=0, 
quiet=0, hash_randomization=1, isolated=0, dev_mode=False, utf8_mode=1)

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[issue34321] mmap.mmap() should not necessarily clone the file descriptor

[Josh Rosenberg]

Josh Rosenberg  added the comment:

Why would it "cause an issue if the file is closed before accessing the mmapped 
region"? As shown in your own link, the constructor performs the mmap call 
immediately after the descriptor is duplicated, with the GIL held; any race 
condition that could close the file before the mmap occurs could equally well 
close it before the descriptor is duplicated.

The possible issues aren't tied to accessing the memory (once the mapping has 
been performed, the file descriptor can be safely closed in general), but 
rather, to the size and resize methods of mmap objects (the former using the fd 
to fstat the file, the latter using it to ftruncate the file). As long as you 
don't use size/resize, nothing else depends on the file descriptor after 
construction has completed. The size method in particular seems like a strange 
wart on the API; it returns the total file size, not the size of the mapping 
(len(mapping) gets the size of the actual mapping).

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[issue34247] PYTHONOPTIMZE ignored in 3.7.0 when using custom launcher

[STINNER Victor]

STINNER Victor  added the comment:

I first proposed to backport all code from master:
https://mail.python.org/pipermail/python-dev/2018-July/154882.html

But I'm not sure that it's a good idea, since I made *many* changes in the 
master branch since 3.7... I even added more files, and the _PyCoreConfig API 
is going to change anyway...

So I wrote a simpler PR 8659 which backports unit tests, adapt them for Python 
3.7, and fix this issue: PYTHONOPTIMIZE and other environment variables and now 
read by Py_Initialize(), not only by Py_Main().

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[issue34247] PYTHONOPTIMZE ignored in 3.7.0 when using custom launcher

[STINNER Victor]

Change by STINNER Victor :


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[issue34126] Profiling certain invalid calls crashes Python

[Jeroen Demeyer]

Change by Jeroen Demeyer :


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[issue34170] Py_Initialize(): computing path configuration must not have side effect (PEP 432)

[STINNER Victor]

Change by STINNER Victor :


--
pull_requests: +8152

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[issue34327] test_subprocess fails

[Berker Peksag]

Change by Berker Peksag :


--
superseder:  -> test_subprocess.POSIXProcessTestCase fails in AMD64 Ubuntu 3.x

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[issue34332] Suggestion for a new loop type

[Zachary Ware]

Zachary Ware  added the comment:

Ideas like this are better sent to the python-id...@python.org mailing list for 
discussion rather than immediately opening an issue.  Note though that I think 
this has a low chance of acceptance; there's a very high bar to clear to add 
syntax, even higher for new keywords, and this doesn't seem to buy much over:

   while True:
   try:
   num = int(input("Enter a number: "))
   except ValueError:
   print("I said a *number*")
   else:
   break
   print("The square of your number is", num**2)

Especially considering that this version allows you to handle the error however 
you want, and handle different errors differently, rather than just silently 
restarting the loop no matter the error.

Also, this will be valid in 3.8 and achieve exactly what you're asking for:

   while not (ans := input("Enter a number: ")).isnumeric():
   pass
   print("The square of your number is", int(ans) ** 2)


Do feel free to send your idea to python-ideas anyway, I'm just one opinion :)

--
nosy: +zach.ware
resolution:  -> rejected
stage:  -> resolved
status: open -> closed
versions:  -Python 3.4, Python 3.5, Python 3.6, Python 3.7

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[issue34256] Python treats ASCII record separator ('\x1e') as a newline

[Terry J. Reedy]

Terry J. Reedy  added the comment:

A database record is equivalent to a logical line, possible wrapped onto 
multiple physical lines. So it is plausible.

The 7643 in the test name refers to issue #7643, What is a Unicode line break 
character?"  It contains this:
"
> We may add some words to the documentation for str.splitlines() and 
> bytes.splitlines() to explain what is considered a line break character.

For ASCII we should make the list of characters explicit.
For Unicode, we should mention the above definition and give
the table as example list (the Unicode database may add more
such characters in the future).
"
The test was added but the doc not.  I agree that it would be useful.  Feel 
free to suggest a doc change.

--
assignee:  -> docs@python
components: +Documentation
nosy: +docs@python, terry.reedy
title: Python treats ASCII record seperator ('\x1e') as a newline -> Python 
treats ASCII record separator ('\x1e') as a newline
versions: +Python 3.7, Python 3.8 -Python 3.5

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[issue34332] Suggestion for a new loop type

[Happy Fakeboulder]

New submission from Happy Fakeboulder :

A "while-except" loop, in which it acts like a do-while loop from other 
languages, except the condition is "did an exception occur during the execution 
of the iteration". One could specify a type of exception at the top, similar to 
an except block header. (sorry, I'm an idiot)
Example (the keyword might be different):

# asks for a number until the user gives one properly, then
# calculates the square of it.
whexc ValueError:
num = int(input("Enter a number: "))
print("The square of your number is " + str(num * num)) # assuming whexc works, 
this will not cause an error

--
messages: 323065
nosy: Happy Fakeboulder
priority: normal
severity: normal
status: open
title: Suggestion for a new loop type
type: enhancement
versions: Python 3.4, Python 3.5, Python 3.6, Python 3.7, Python 3.8

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[issue34253] Tkinter- On windows, calling filedialog or messagebox before the window is drawn causes focus issues

[Terry J. Reedy]

Terry J. Reedy  added the comment:

You only need to run .update_idletasks(), as there are no pending events to 
process.

This is not a tkinter issue.  It is a known fact that there are undocumented 
annoying differences in tk behavior on different systems and even different 
versions thereof.  In #34275, for instance, we had to add .update_idletasks for 
IDLE calltips to appear on Macs with recent tk versions.

For Windows, your code also needs entry.focus_set to be able to enter text, 
after the mbox is dismissed, without activating the widget with a click.

Indeed, the call is needed here on Mac with Python 3.7.0 and tk 8.6.8.  Without 
it, the root window partially keeps the focus, in that the traffic lights 
remain light, and the messagebox only partially get the focus, in that the 
title and OK button are dimmed.  One has to click on the box to highlight the 
title and OK.  With the call, the root lights go out and the box is active, and 
can be dismissed with .

There is an additional issue on current Mac.  When the mbox is dismissed, focus 
does not return properly to the root and entry.  They have to be clicked on.  
Since this is similar to the problem in #34120, and since Novel's issue on 
Windows is exactly like the 'have to go away and come back' part of #34120, I 
wonder if the model mbox needs an explicit grab release.

Kevin, since the mbox is created and destroyed within a call to the tk 
messageBox function we have no control of its operation.  Perhaps you could 
check the tcl/tk code and see it if needs updating, as did the IDLE code.

--
nosy: +serhiy.storchaka, terry.reedy, wordtech
resolution:  -> third party
stage:  -> resolved
status: open -> closed
type:  -> behavior

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[issue33161] Refactor of pathlib's _WindowsBehavior.gethomedir

[Berker Peksag]

Berker Peksag  added the comment:

Thanks for the PR, but we usually avoid unnecessary churn in Python codebase.

Both versions look fine, and deciding which one to use is just a matter of 
personal taste.

--
components:  -Windows
nosy: +berker.peksag -paul.moore, steve.dower, tim.golden, zach.ware
resolution:  -> rejected
stage: patch review -> resolved
status: open -> closed

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[issue34211] Cygwin build broken due to use of _Type in static declaration in _abc module

[Erik Bray]

Erik Bray  added the comment:

> What makes functions different from variables? Aren't they essentially just 
> pointers?

You're on the right track by noting a difference between functions and data 
variables.  I can tell you off the bat that when it comes to data imported from 
DLLs, non-functions are handled (somewhat by necessity) quite differently from 
functions.

That said, since you asked, I struggled to articulate *exactly* why this exact 
problem occurs on Cygwin (actually on Windows in general), so I thought about 
it for a while and wrote up an explanation in a blog post: 
http://iguananaut.net/blog/programming/windows-data-import.html

The TL;DR though is that limitations of how the runtime dynamic loader on 
Windows works are such that it's impossible to initialize static data with a 
pointer to some data in an external library.  The compiler knows this and 
prevents you from doing it.  The workaround is simple enough for most cases: 
Complete the initialization at runtime.  In the case of PyType_Type objects, 
PyType_Ready can set their base type at runtime just fine.

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[issue32797] Tracebacks from Cython modules no longer work

[Brett Cannon]

Change by Brett Cannon :


--
nosy: +brett.cannon, eric.snow, ncoghlan, petr.viktorin

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[issue34312] Allow str.endswith and str.startswith to accept an iterable

[Brett Cannon]

Change by Brett Cannon :


--
resolution:  -> wont fix
stage:  -> resolved
status: open -> closed

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[issue34252] Bunch of path leaks on Python 3.7 on Release

[Eric Fahlgren]

Eric Fahlgren  added the comment:

I believe that the CL command line switch is /FC, not /FP:

https://msdn.microsoft.com/en-us/library/027c4t2s.aspx

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[issue34325] test_zipfile gets OverflowError in multiple buildbots

[Petr Viktorin]

Petr Viktorin  added the comment:


New changeset 7b41dbad78c6b03ca2f98800a92a1977d3946643 by Petr Viktorin (Marcel 
Plch) in branch 'master':
bpo-34325: Skip zipfile test for large timestamps when filesystem don't support 
them. (GH-8656)
https://github.com/python/cpython/commit/7b41dbad78c6b03ca2f98800a92a1977d3946643


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[issue34331] Incorrectly pluralized abstract class error message

[ppperry]

New submission from ppperry :

>>> class abstract(abc.ABC):
... @abc.abstractmethod
... def meth():
... pass
...
>>> x()
Traceback (most recent call last):
  File "", line 1, in 
TypeError: Can't instantiate abstract class x with abstract methods meth

Error should be "Can't instantiate abstract class abstract with abstract method 
meth" in the singular, because there is only one abstract method.

--
components: Interpreter Core, Library (Lib)
messages: 323059
nosy: Anjali Bansal, ppperry, rhettinger, serhiy.storchaka, terry.reedy, xtreak
priority: normal
severity: normal
status: open
title: Incorrectly pluralized abstract class error message
versions: Python 3.8

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[issue31908] trace module cli does not write cover files

[Zackery Spytz]

Zackery Spytz  added the comment:

This change causes test_trace to leave a trace.cover file in the Lib directory 
(see #34171).

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[issue34171] Lib/trace.cover not removed by the clean target

[Zackery Spytz]

Zackery Spytz  added the comment:

It seems that this file is left by test_trace after commit 
47ab15470d72367694d7758004067313ae022f0e.

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[issue34330] The decode_header function does not always work correctly.

[Влад К]

New submission from Влад К :

The decode_header function does not always work correctly.

me@Serv:~$ python3
Python 3.6.5 (default, Apr  1 2018, 05:46:30)
[GCC 7.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> from email.header import decode_header
>>> s = 
>>> '=?windows-1251?B?zeDp5Oj46ujtINDu7ODtIMLr4OTo7Ojw7uLo9w==?=\r\n\t'
>>> decode_header(s)
[(b'\xcd\xe0\xe9\xe4\xe8\xf8\xea\xe8\xed \xd0\xee\xec\xe0\xed 
\xc2\xeb\xe0\xe4\xe8\xec\xe8\xf0\xee\xe2\xe8\xf7', 'windows 

-1251'), (b'', None)]
>>> exit()

me@Serv:~$ python
Python 2.7.15rc1 (default, Apr 15 2018, 21:51:34)
[GCC 7.3.0] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> from email.header import decode_header
>>> s = 
>>> '=?windows-1251?B?zeDp5Oj46ujtINDu7ODtIMLr4OTo7Ojw7uLo9w==?=\r\n\t'
>>> decode_header(s)
[('=?windows-1251?B?zeDp5Oj46ujtINDu7ODtIMLr4OTo7Ojw7uLo9w==?=\r\n\t',
 None)]
>>> exit()

--
components: email
messages: 323056
nosy: barry, r.david.murray, Влад К2
priority: normal
severity: normal
status: open
title: The decode_header function does not always work correctly.
versions: Python 2.7

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[issue32073] Add copy_directory_metadata parameter to shutil.copytree

[Giampaolo Rodola']

Giampaolo Rodola'  added the comment:

What function raises ENOTSUPP exactly (traceback would be welcome)?

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[issue34329] Document how to remove a suffix with pathlib.Path.with_suffix

[Berker Peksag]

Berker Peksag  added the comment:

This seems like a reasonable request. The feature was added in 
https://github.com/python/cpython/commit/e50dafcd636ba32db890600164698bb070d40d97
 (issue 20639) in Python 3.4.

I'd normally suggest adding a ".. versionchanged:: 3.4" marker, but since the 
change is quite old and it's already in all of the current maintenance 
releases, I think we don't need to add it.

--
nosy: +berker.peksag
versions: +Python 3.6, Python 3.7, Python 3.8

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[issue34329] Document how to remove a suffix with pathlib.Path.with_suffix

[Stéphane Wirtel]

Stéphane Wirtel  added the comment:

It's the same thing for everything, for example, in Karate, you will start with 
the white belt and with practice, you will get the black belt.

Thank you again for your contribution.

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[issue34329] Document how to remove a suffix with pathlib.Path.with_suffix

[Stefan Otte]

Stefan Otte  added the comment:

No problem, I'm just excited to contribute to python (as small as the 
contribution might be) :)

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[issue34329] Document how to remove a suffix with pathlib.Path.with_suffix

[Stéphane Wirtel]

Stéphane Wirtel  added the comment:

yep, it's a manual modification in b.p.o but after that, we can check your PR. 
thank you for your patience.

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[issue34329] Document how to remove a suffix with pathlib.Path.with_suffix

[Stefan Otte]

Stefan Otte  added the comment:

I'm waiting for the CLA to be accepted. I'll get back to you ASAP.

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[issue34301] Add _PyInterpreterState_Get() helper function

[STINNER Victor]

Change by STINNER Victor :


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

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[issue34301] Add _PyInterpreterState_Get() helper function

[STINNER Victor]

STINNER Victor  added the comment:


New changeset caba55b3b735405b280273f7d99866a046c18281 by Victor Stinner in 
branch 'master':
bpo-34301: Add _PyInterpreterState_Get() helper function (GH-8592)
https://github.com/python/cpython/commit/caba55b3b735405b280273f7d99866a046c18281


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[issue34329] Document how to remove a suffix with pathlib.Path.with_suffix

[Stéphane Wirtel]

Stéphane Wirtel  added the comment:

Good catch, thank you.
Could you sign the CLA, without the CLA, we can't process your PR.

Thank you

--
nosy: +matrixise

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[issue34326] test_subprocess.POSIXProcessTestCase fails in AMD64 Ubuntu 3.x

[Stéphane Wirtel]

Stéphane Wirtel  added the comment:

Pablo, the main issue comes after this commit, you can strace the call 
for example 

./python -m unittest test.test_subprocess.POSIXProcessTestCase.test_pass_fds

on this test function and you will see than there is a opened file descriptor.

I tried to rewrite the patch of victor and see what was the difference, and 
there is no issue with pymain_run_stdin but I have the issue with 
pymain_run_file.

after that, I don't know how to find the leaked file.

Any idea?

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[issue34326] test_subprocess.POSIXProcessTestCase fails in AMD64 Ubuntu 3.x

[Pablo Galindo Salgado]

Pablo Galindo Salgado  added the comment:

Maybe we can strace a failing test and cross check the opens and the closes to 
see which one is not being closed. Or monitor /proc/PID/fd while the test runs. 
I can investigate later today myself.

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[issue34326] test_subprocess.POSIXProcessTestCase fails in AMD64 Ubuntu 3.x

[Stéphane Wirtel]

Stéphane Wirtel  added the comment:

I think there is an issue with pymain_run_file, in the new code of Victor, a 
file descriptor is not closed but I don't know why.

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[issue34325] test_zipfile gets OverflowError in multiple buildbots

[Marcel Plch]

Change by Marcel Plch :


--
keywords: +patch
pull_requests: +8151
stage:  -> patch review

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[issue24218] Also support SMTPUTF8 in smtplib's send_message method.

[Jens Troeger]

Jens Troeger  added the comment:

So that’s interesting. I thought that setting `international = True` (see line 
https://github.com/python/cpython/blob/master/Lib/smtplib.py#L947) would be a 
neat workaround, but the opposite.

When delivering those emails to Gmail I started seeing 

Failed to send email: (555, b'5.5.2 Syntax error, goodbye. 
s53-v6sm1864855qts.5 - gsmtp', 'f...@bar.com')

and it turns out (according to the IETF message linter, 
https://tools.ietf.org/tools/msglint/) that:

---
UNKNOWN: unknown header 'User-Agent' at line 4
ERROR: missing mandatory header 'date' lines 1-7
ERROR: missing mandatory header 'return-path' lines 1-7
OK: found part text/plain line 9
WARNING: line 13 too long (109 chars); text/plain shouldn't need folding (RFC 
 2046-4.1.1)
WARNING: line 15 too long (124 chars); text/plain shouldn't need folding (RFC 
 2046-4.1.1)
WARNING: Character set mislabelled as 'utf-8' when 'us-ascii' suffices, body 
 part ending line 22
---

It seems that now “Date” and “Return-Path” header entries are missing when the 
email is generated.

I reverted the initial change. Any updates on the multiple CR problem when 
flattening?

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[issue34329] Document how to remove a suffix with pathlib.Path.with_suffix

[Stefan Otte]

Change by Stefan Otte :


--
keywords: +patch
pull_requests: +8150
stage:  -> patch review

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[issue34326] test_subprocess.POSIXProcessTestCase fails in AMD64 Ubuntu 3.x

[Stéphane Wirtel]

Stéphane Wirtel  added the comment:

I continue to work on this issue

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[issue34329] Document how to remove a suffix with pathlib.Path.with_suffix

[Stefan Otte]

New submission from Stefan Otte :

Hello folks!

I didn't realize that you can remove a suffix with the `with_suffix` function 
of the `Path` class of `pathlib` and I always used a little utility function 
that I wrote.
I wanted to add that functionality (removing of a suffix) and submit a PR but 
then I saw that `with_suffix` has you covered already. I'm just documenting 
this feature with the PR I'll submit.

--
assignee: docs@python
components: Documentation
messages: 323042
nosy: docs@python, sotte
priority: normal
severity: normal
status: open
title: Document how to remove a suffix with pathlib.Path.with_suffix
type: enhancement

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[issue34326] test_subprocess.POSIXProcessTestCase fails in AMD64 Ubuntu 3.x

[Stéphane Wirtel]

Stéphane Wirtel  added the comment:

When I try to find the issue with git bisect, I have one commit.

72ec3193b5118a2ccc8be8bf03d7b74691c6a264 is the first bad commit
commit 72ec3193b5118a2ccc8be8bf03d7b74691c6a264
Author: Victor Stinner 
Date:   Thu Aug 2 19:34:20 2018 +0200

bpo-34170: Cleanup pymain_run_filename() (GH-8631)

* Inline pymain_run_file() and pymain_open_filename() into
  pymain_run_filename()
* Created pymain_run_stdin() which is pymain_run_filename() with
  filename=NULL
* Rename pymain_run_filename() to pymain_run_file()

:04 04 6e49f5791bc63c3bf67a3674ccc00a412b5f089a 
1b93e169af3afb07daaf06e2247a3eae6a88cac5 M  Modules

with ./python -m test test_subprocess -v

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[issue34313] IDLE crashes with Tk-related error on macOS with ActiveTcl 8.6

[Vlad Tudorache]

Vlad Tudorache  added the comment:

I was telling only that I've seen myself the issues with some Tcl/Tk versions. 
As I often build Tcl/Tk on macOS, I can confirm that on 8.6.8 I didn't see 
issues (those were effectively present in (ActiveState or not) Tcl 8.5.18, 
8.5.19, 8.6.6, 8.6.7. The only issue I had was an @autoreleasepool after 
several open/close of the Preferences dialog in IDLE (see the 34120 issue), 
related probably to a partial release of resources.

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[issue34326] test_subprocess.POSIXProcessTestCase fails in AMD64 Ubuntu 3.x

[Stéphane Wirtel]

Stéphane Wirtel  added the comment:

same problem here:
linux: 
https://python.visualstudio.com/8e426817-76c0-4b99-ba9e-a48a1e4bd5db/_build/index?buildId=21241
macOS: 
https://python.visualstudio.com/8e426817-76c0-4b99-ba9e-a48a1e4bd5db/_build/index?buildId=21242

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[issue34022] 6 tests fail using SOURCE_DATE_EPOCH env var

[Chih-Hsuan Yen]

Change by Chih-Hsuan Yen :


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nosy: +yan12125

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[issue34326] test_subprocess.POSIXProcessTestCase fails in AMD64 Ubuntu 3.x

[Stéphane Wirtel]

Stéphane Wirtel  added the comment:

Same issue with my builds : 

* Linux -> 
https://python.visualstudio.com/cpython/_build/results?buildId=21273=logs
* macOS -> 
https://python.visualstudio.com/cpython/_build/results?buildId=21274=logs

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[issue34207] test_cmd_line test_utf8_mode test_warnings fail in all FreeBSD 3.x (3.8) buildbots

[Stéphane Wirtel]

Stéphane Wirtel  added the comment:

xtreak

in this case, it's an issue on the buildbot cluster, we have to be sure that we 
don't have this error again.

and for that, we have to find the origin of the crash on buildbot.

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[issue34207] test_cmd_line test_utf8_mode test_warnings fail in all FreeBSD 3.x (3.8) buildbots

[Karthikeyan Singaravelan]

Karthikeyan Singaravelan  added the comment:

I tried the tests on FreeBSD 11.x and FreeBSD 10.x digitalocean droplets with 
master branch and the tests pass. Adding information that might be helpful.

# FreeBSD 11.2-RELEASE

root@freebsd-s-1vcpu-1gb-blr1-01:~/cpython # uname -a
FreeBSD freebsd-s-1vcpu-1gb-blr1-01 11.2-RELEASE FreeBSD 11.2-RELEASE #0 
r335510: Fri Jun 22 04:32:14 UTC 2018 
r...@releng2.nyi.freebsd.org:/usr/obj/usr/src/sys/GENERIC  amd64

root@freebsd-s-1vcpu-1gb-blr1-01:~/cpython # ./python
Python 3.8.0a0 (heads/master:b6efc2c, Aug  3 2018, 06:26:53)
[Clang 6.0.0 (tags/RELEASE_600/final 326565)] on freebsd11
Type "help", "copyright", "credits" or "license" for more information.
>>>
root@freebsd-s-1vcpu-1gb-blr1-01:~/cpython # setenv PYTHONIOENCODING utf-8
root@freebsd-s-1vcpu-1gb-blr1-01:~/cpython # setenv PYTHONWARNINGS 
ignore:DeprecaciÛnWarning
root@freebsd-s-1vcpu-1gb-blr1-01:~/cpython # setenv PYTHONDEVMODE ""
root@freebsd-s-1vcpu-1gb-blr1-01:~/cpython # ./python -c "import sys; 
sys.stdout.write(str(sys.warnoptions))"
['ignore:DeprecaciÛnWarning']
root@freebsd-s-1vcpu-1gb-blr1-01:~/cpython # ./python -m unittest -v 
test.test_warnings test.test_cmd_line test.test_utf8_mode
test_issue_8766 (test.test_warnings.BootstrapTest) ... ok
test_catch_warnings_defaults (test.test_warnings.CCatchWarningTests) ... ok
test_catch_warnings_recording (test.test_warnings.CCatchWarningTests) ... ok
test_catch_warnings_reentry_guard (test.test_warnings.CCatchWarningTests) ... ok
test_catch_warnings_restore (test.test_warnings.CCatchWarningTests) ... ok
test_check_warnings (test.test_warnings.CCatchWarningTests) ... ok
test_record_override_showwarning_before (test.test_warnings.CCatchWarningTests) 
... ok
test_record_override_showwarning_inside (test.test_warnings.CCatchWarningTests) 
... ok
test_comma_separated_warnings (test.test_warnings.CEnvironmentVariableTests) 
... ok
test_conflicting_envvar_and_command_line 
(test.test_warnings.CEnvironmentVariableTests) ... ok
test_default_filter_configuration 
(test.test_warnings.CEnvironmentVariableTests) ... ok
test_envvar_and_command_line (test.test_warnings.CEnvironmentVariableTests) ... 
ok
test_nonascii (test.test_warnings.CEnvironmentVariableTests) ... ok
test_single_warning (test.test_warnings.CEnvironmentVariableTests) ... ok
test_always (test.test_warnings.CFilterTests) ... ok
test_always_after_default (test.test_warnings.CFilterTests) ... ok
test_append_duplicate (test.test_warnings.CFilterTests) ... ok
test_default (test.test_warnings.CFilterTests) ... ok
test_error (test.test_warnings.CFilterTests) ... ok
test_error_after_default (test.test_warnings.CFilterTests) ... ok
test_filterwarnings (test.test_warnings.CFilterTests) ... ok
test_filterwarnings_duplicate_filters (test.test_warnings.CFilterTests) ... ok
test_ignore (test.test_warnings.CFilterTests) ... ok
test_ignore_after_default (test.test_warnings.CFilterTests) ... ok
test_inheritance (test.test_warnings.CFilterTests) ... ok
test_message_matching (test.test_warnings.CFilterTests) ... ok
test_module (test.test_warnings.CFilterTests) ... ok
test_module_globals (test.test_warnings.CFilterTests) ... ok
test_mutate_filter_list (test.test_warnings.CFilterTests) ... ok
test_once (test.test_warnings.CFilterTests) ... ok
test_ordering (test.test_warnings.CFilterTests) ... ok
test_simplefilter_duplicate_filters (test.test_warnings.CFilterTests) ... ok
test_module_all_attribute (test.test_warnings.CPublicAPITests) ... ok
test_improper_input (test.test_warnings.CWCmdLineTests) ... ok
test_accelerated (test.test_warnings.CWarnTests) ... ok
test_bad_str (test.test_warnings.CWarnTests) ... ok
test_exec_filename (test.test_warnings.CWarnTests) ... ok
test_filename (test.test_warnings.CWarnTests) ... ok
test_message (test.test_warnings.CWarnTests) ... ok
test_stacklevel (test.test_warnings.CWarnTests) ... ok
test_stacklevel_import (test.test_warnings.CWarnTests) ... ok
test_warn_explicit_non_ascii_filename (test.test_warnings.CWarnTests) ... ok
test_warn_explicit_type_errors (test.test_warnings.CWarnTests) ... ok
test_warn_nonstandard_types (test.test_warnings.CWarnTests) ... ok
test_warning_classes (test.test_warnings.CWarnTests) ... ok
test_formatwarning (test.test_warnings.CWarningsDisplayTests) ... ok
test_showwarning (test.test_warnings.CWarningsDisplayTests) ... ok
test_finalization (test.test_warnings.FinalizationTest) ... ok
test_late_resource_warning (test.test_warnings.FinalizationTest) ... ok
test_catch_warnings_defaults (test.test_warnings.PyCatchWarningTests) ... ok
test_catch_warnings_recording (test.test_warnings.PyCatchWarningTests) ... ok
test_catch_warnings_reentry_guard (test.test_warnings.PyCatchWarningTests) ... 
ok
test_catch_warnings_restore (test.test_warnings.PyCatchWarningTests) ... ok
test_check_warnings (test.test_warnings.PyCatchWarningTests) ... ok
test_record_override_showwarning_before 
(test.test_warnings.PyCatchWarningTests) ... ok

[issue34323] False timeout log message on proactor close

[Stéphane Wirtel]

Stéphane Wirtel  added the comment:

Hi johnboy2,

thank you for your issue, but could you send us more information about your 
platform?

thank you

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[issue34325] test_zipfile gets OverflowError in multiple buildbots

[Petr Viktorin]

Change by Petr Viktorin :


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nosy: +Dormouse759

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[issue34325] test_zipfile gets OverflowError in multiple buildbots

[Petr Viktorin]

Change by Petr Viktorin :


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nosy: +petr.viktorin

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[issue34324] Doc README wrong directory name for venv

[Stéphane Wirtel]

Change by Stéphane Wirtel :


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keywords: +patch
pull_requests: +8149
stage:  -> patch review

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[issue34324] Doc README wrong directory name for venv

[Stéphane Wirtel]

Stéphane Wirtel  added the comment:

I just pushed a PR.

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[issue34314] Like __hash__, allow setting MyClass.__init__ to None to prevent it being called by type.__call__

[Raymond Hettinger]

Change by Raymond Hettinger :


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

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[issue34319] Clarify pathlib.Path("filepath").read_text()

[Thomas Nyberg]

Thomas Nyberg  added the comment:

For what it's worth as the original opener of the bug report, I think Terry's 
recommendation clarifies things quite well.

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[issue34312] Allow str.endswith and str.startswith to accept an iterable

[Stéphane Wirtel]

Stéphane Wirtel  added the comment:

I also agree with the problem of performance, tuple and str are immutables and 
from that, we can optimize the generation of the bytecode.

Raymond, @Brett & @Serhiy, Can we close this issue?

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[issue34328] Incorrect URL for the Visual C++ Build Tools

[sakamotoaya]

sakamotoaya  added the comment:

Everyone Thank you.
That was really helpful.

Problem already been resolved.
I change status　Pending to close.

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[issue34328] Incorrect URL for the Visual C++ Build Tools

[Stéphane Wirtel]

Change by Stéphane Wirtel :


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status: open -> pending

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[issue34327] test_subprocess fails

[Stéphane Wirtel]

Stéphane Wirtel  added the comment:

It's a duplicate of this issue: https://bugs.python.org/issue34326

I close this issue.

Thank you for your feedback.

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

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[issue34312] Allow str.endswith and str.startswith to accept an iterable

[Tal Einat]

Tal Einat  added the comment:

I tend to agree.  ISTM that for users, understanding the error message and 
passing a tuple is trivial, while realizing the performance benefit of using a 
tuple rather than a list or set here is certainly non-trivial.

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[issue34328] Incorrect URL for the Visual C++ Build Tools

[Karthikeyan Singaravelan]

Karthikeyan Singaravelan  added the comment:

Ah sorry, I don't know why it opened this bug while adding a comment. Feel free 
to change the status.

Thanks

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[issue34328] Incorrect URL for the Visual C++ Build Tools

[Karthikeyan Singaravelan]

Karthikeyan Singaravelan  added the comment:

Upstream issue was resolved : https://github.com/pypa/setuptools/issues/1394

Thanks

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