[issue17185] unittest mock create_autospec doesn't correctly replace mocksignature

[Chris Withers]

Change by Chris Withers :


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status: open -> closed

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[issue17185] unittest mock create_autospec doesn't correctly replace mocksignature

[miss-islington]

Change by miss-islington :


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[issue17185] unittest mock create_autospec doesn't correctly replace mocksignature

[Chris Withers]

Chris Withers  added the comment:


New changeset f7fa62ef4422c9deee050a794fd8504640d9f8f4 by Chris Withers 
(Xtreak) in branch 'master':
bpo-17185: Add __signature__ to mock that can be used by inspect for signature 
(GH11048)
https://github.com/python/cpython/commit/f7fa62ef4422c9deee050a794fd8504640d9f8f4


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[issue6835] doctest problem with decorated function when decorator is defined in separate file

[Serhiy Storchaka]

Change by Serhiy Storchaka :


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superseder:  -> Problem with doctest and decorated functions

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[issue20800] Cannot run gui tests twice.

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:

I have just tested on Windows and all works to me. Terry, can you confirm that 
this issue is gone?

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[issue35468] [3.6/3.7] idlelib/help.html mentions 3.8alpha0 docs

[Matthias Klose]

New submission from Matthias Klose :

[3.6/3.7] idlelib/help.html mentions 3.8alpha0 docs:



Seen in the 3.6.8 and 3.7.2 release candidates

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components: IDLE
keywords: 3.6regression, 3.7regression
messages: 331671
nosy: doko, ned.deily, terry.reedy
priority: normal
severity: normal
status: open
title: [3.6/3.7] idlelib/help.html mentions 3.8alpha0 docs
versions: Python 3.6, Python 3.7

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

[Terry J. Reedy]

Change by Terry J. Reedy :


--
components:  -IDLE
title: IDLE crashes with Tk-related error on macOS with ActiveTcl 8.6 -> 
Tkinter crashes with Tk-related error on macOS with ActiveTcl 8.6

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[issue35387] Dialogs on IDLE are accompanied by a small black window

[Terry J. Reedy]

Terry J. Reedy  added the comment:

Vlad, thank you.  The release candidates for 3.7.2 and 3.6.8 are due as soon as 
Ned can manage.  The Mac installers will come with the very recent tcl/tk 
8.6.9(.1) releases.  Existing tkinter-related issues for Mac should be 
re-tested when available and installed.

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[issue33610] IDLE: Make multiple improvements to CodeContext

[Terry J. Reedy]

Change by Terry J. Reedy :


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[issue33960] IDLE REPL: Strange indentation

[Terry J. Reedy]

Change by Terry J. Reedy :


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[issue33963] IDLE macosx: add tests.

[Terry J. Reedy]

Change by Terry J. Reedy :


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[issue34055] IDLE Shell: check syntax before smart indent

[Terry J. Reedy]

Terry J. Reedy  added the comment:

#35467 is about unwanted auto-pasting.

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[issue35467] IDLE: unrequested pasting into Shell after restart

[Terry J. Reedy]

New submission from Terry J. Reedy :

IDLE very occasionally (frequency much less than .01), and AFAIK hapzardly, 
pastes previous shell output after I enter something at the prompt after a 
restart.  Not fatal but definitly annoying.  When it happened today, I decided 
to open this issue to start accumulating information that might point at where 
to start.

tem3.py:  (content likely not relevant)

import inspect
class A:
pass
print(inspect.getsource(A))
print(__name__)

Shell copy:
"""
...
OSError: could not find class definition
>>> 
 RESTART: F:\Python\a\tem3.py 
class A:
pass

__main__
>>> 1/0 RESTART: F:\Python\a\tem3.py 
>>> 
class A:
pass
SyntaxError: invalid syntax
>>> 1/0
Traceback (most recent call last):
...
"""

The paste, after '1/0', is the restart line and the first two lines of output 
(but not the last two).  It mixes text from IDLE and from the program, so it is 
not an echo from the run process).  It is colored as if typed in: 'class' and 
'pass' are keyword colored, the  I believe I hit ENTER  and got the paste 
instead of the exception.  I hit Entere after the paste to get the SyntaxError 
and a clean prompt.  Then I reentered 1/0.

I did more or less the same thing about 5 times without a repeat of the problem.

Possible factors:
exception before restart (probably not relevant).
restart, prompt, and entry (I believe these are essential elements).
running a file (I seldom restart other wise).
hitting return

Included Content:
restart line (I am pretty sure pasted text does not always include this).
output from before the restart (ever?).
output from after the restart (if always, must have run a file).
---

Raymond, I believe you have seen this on Mac.  Tal or Sheryl, how about linux?  
Anyone, more details on other examples are needed to know what is constant and 
what is incidental.

--
messages: 331668
nosy: cheryl.sabella, rhettinger, taleinat, terry.reedy
priority: normal
severity: normal
stage: needs patch
status: open
title: IDLE: unrequested pasting into Shell after restart
type: behavior
versions: Python 3.7, Python 3.8

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[issue35267] reproducible deadlock with multiprocessing.Pool

[STINNER Victor]

Change by STINNER Victor :


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[issue35402] Upgrade macOS and Windows installers to Tcl 8.6.9 and Tk 8.6.9.1

[Steve Dower]

Steve Dower  added the comment:

Probably. I'm 99% sure it's a problem with the latest build tools, and nothing 
to do with Python. Though I haven't checked out whether we're injecting any 
compile time flags that may be causing extra things to be included - I have no 
idea why X11 is necessary, for example.

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[issue17534] unittest keeps references to test cases alive

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:

Does this issue still relevant?

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[issue27477] IDLE: Switch search dialogs to ttk widgets, and other refinement

[Terry J. Reedy]

Change by Terry J. Reedy :


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[issue33987] IDLE: add ttk.Frame inside searchbaseToplevel

[Terry J. Reedy]

Change by Terry J. Reedy :


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[issue18799] Resurrect and fix test_404 in Lib/test/test_xmlrpc.py

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:

Vajrasky, do you mind to create a pull request on GitHub for your patch?

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[issue10336] test_xmlrpc fails if gzip is not supported by client

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:

The server for this test is ran in the different thread of the same process. 
The test is skipped if gzip is not supported. I don't see a way how it can fail.

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[issue35423] Signal handling machinery still relies on "pending calls".

[Eric Snow]

Change by Eric Snow :


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[issue35466] Use a linked list for the ceval pending calls.

[Eric Snow]

Eric Snow  added the comment:

I suppose performance could have been a motivator originally.  However, I don't 
see a benefit now that signals handlers are no longer pending calls.  If it's a 
real problem then we can leverage a free list.

As to complexity, the motivator for this change was difficulty I had (along 
with another core dev) in quickly understanding the logic for manipulating the 
circular buffer.  I find the linked list much easier to understand.

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[issue19348] Building _testcapimodule as a builtin results in compile error

[Serhiy Storchaka]

Change by Serhiy Storchaka :


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[issue35466] Use a linked list for the ceval pending calls.

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:

Was not a circular array used intentionally because this allows to avoid 
calling malloc()?

And the proposed code looks more complicated to me than the current code.

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[issue34708] Odd crashes/freezes when sys.stdout.shell.console is typed

[Terry J. Reedy]

Change by Terry J. Reedy :


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[issue33962] IDLE: use ttk.spinbox with configdialog

[Terry J. Reedy]

Change by Terry J. Reedy :


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[issue34857] IDLE: SyntaxWarning not handled properly

[Terry J. Reedy]

Change by Terry J. Reedy :


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[issue33065] IDLE debugger: failure stepping through module loading

[Terry J. Reedy]

Change by Terry J. Reedy :


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

[Terry J. Reedy]

Change by Terry J. Reedy :


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[issue5438] test_bigmem.test_from_2G_generator uses more memory than expected

[Serhiy Storchaka]

Change by Serhiy Storchaka :


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[issue21880] IDLE: Ability to run 3rd party code checkers

[Terry J. Reedy]

Change by Terry J. Reedy :


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[issue17535] IDLE: Add an option to show line numbers along the left side of the editor window, and have it enabled by default.

[Terry J. Reedy]

Change by Terry J. Reedy :


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[issue34976] IDLE: Replace the search dialog with a search bar

[Terry J. Reedy]

Change by Terry J. Reedy :


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[issue25219] Update doc for Idle command line options.

[Terry J. Reedy]

Terry J. Reedy  added the comment:

Rather that leave this open indefinitely, I decided to close until a report or 
research says that more is needed.

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[issue5438] test_bigmem.test_from_2G_generator uses more memory than expected

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:

tuple(range(size)) should consume approximately 90 GiB of memory and run for 
hours. I think this happens because it creates enormous number of integer 
objects, and this can lead to requesting additional memory for memory pools.

If details of memory management for small objects is not the purpose of this 
test, I think we can replace it with tuple(iter([42]*size)). It executes the 
same code in tuple creation: allocates a tuple of known size (both range and 
list iterators have __length_hint__) and fills it with values produced by the 
iterator. This allows significantly reduce memory requirements (to 16 GiB) and 
execution time (to 20 seconds on my computer).

The proposed PR implements this rewriting. It also fixes memory requirements 
for other tests, optimizes repr tests for tuples and lists (repr(False) is 
faster and longer than repr(0)), and expresses memory requirements in terms of 
character and pointer sizes.

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[issue12920] inspect.getsource only works for objects loaded from files, not interactive session

[Terry J. Reedy]

Terry J. Reedy  added the comment:

Do we really need to say that getsource(object) can only get the object's 
source if it is accessible from the object?  Getsource also fails if a module 
is loaded from a .pyc with not corresponding .py available.

The problem is not the call being in __main__.  When I put the three lines 
(with the 3rd wrapped with print()) in an IDLE editor and run, and re-inspect, 
I get

 RESTART: F:\Python\a\tem3.py 
class A:
pass

>>> inspect.getsource(A)
'class A:\npass\n'

Ditto if I run > py -i -m a.tem3

If I continue in IDLE's Shell

>>> class B: pass

>>> inspect.getsource(B)
Traceback (most recent call last):
  File "", line 1, in 
inspect.getsource(B)
  File "F:\dev\37\lib\inspect.py", line 973, in getsource
lines, lnum = getsourcelines(object)
  File "F:\dev\37\lib\inspect.py", line 955, in getsourcelines
lines, lnum = findsource(object)
  File "F:\dev\37\lib\inspect.py", line 812, in findsource
raise OSError('could not find class definition')
OSError: could not find class definition

If I enter the three lines above in a fress python or IDLEs shell, I get the 
TypeError above.

IDLE does store interactive inputs into linecache, so that tracebacks contain 
the offending line (unlike interactive python). But it does so on a statement 
by statement basis, so that each entry is treated as a separate file.  In a 
traceback for an exception in a multiline statement, the line number is 
relative to the statement.

>>> def f():
# line2 of f
1/0


>>> f()
Traceback (most recent call last):
  File "", line 1, in 
f()
  File "", line 3, in f
1/0
ZeroDivisionError: division by zero

Interactive python displays '' as the file for all entries.  IDLE 
numbers them, so previous statements remained cached.  I consider enhanced 
interactive tracebacks to be an important feature.

But I don't see how to attach individual pseudofile names to classes and 
functions so that getsource could find their source lines.

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versions: +Python 3.7, Python 3.8 -Python 2.7, Python 3.4, Python 3.5, Python 
3.6

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[issue35097] IDLE add doc subsection for editor windows

[Terry J. Reedy]

Change by Terry J. Reedy :


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[issue16516] argparse types (and actions) must be hashable

[Guido van Rossum]

Guido van Rossum  added the comment:

Luna and I talked a bit about this offline and we decided not to merge the PR 
(nor the original patch, which is the same). Instead Luna will add a note to 
the docs explaining the caveat.

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[issue35402] Upgrade macOS and Windows installers to Tcl 8.6.9 and Tk 8.6.9.1

[Ned Deily]

Ned Deily  added the comment:

Should the problems be reported upstream?

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[issue35402] Upgrade macOS and Windows installers to Tcl 8.6.9 and Tk 8.6.9.1

[Steve Dower]

Steve Dower  added the comment:

Looks like Tix needs similar updates, since it imports the Tk headers. Perhaps 
it'll be easier to undef immediately after the X11\X.h include? Assuming the 
values aren't actually being used anywhere.

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[issue35446] incorrect example

[Eric Snow]

Change by Eric Snow :


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[issue35466] Use a linked list for the ceval pending calls.

[Eric Snow]

Change by Eric Snow :


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[issue35446] incorrect example

[Eric Snow]

Change by Eric Snow :


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[issue35466] Use a linked list for the ceval pending calls.

[Eric Snow]

New submission from Eric Snow :

Currently the list of pending calls (see Include/internal/pycore_ceval.h) is 
implemented as a circular buffer.  A linked list would be easier to understand 
and modify.  It also allows for removing the restriction on the number of 
pending calls.

--
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components: Interpreter Core
messages: 331655
nosy: eric.snow
priority: normal
severity: normal
stage: needs patch
status: open
title: Use a linked list for the ceval pending calls.
type: enhancement
versions: Python 3.8

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[issue35423] Signal handling machinery still relies on "pending calls".

[Eric Snow]

Eric Snow  added the comment:

Correct.  The remaining call to Py_AddPendingCall in the signal-handling code 
is fine.

This issue is only indirectly related.  I suppose you could consider it a 
follow-up to #30703.  The PR for that issue (GH-2415) switches from using 
pending calls for signal handlers to using the pending calls machinery without 
actual pending calls.

So here I want to address taking the next step: deal with pending signals 
separately from pending calls.  That separation helps simplify efforts to adapt 
the pending calls machinery for use in arbitrary threads (rather than the main 
thread).  See #33608.

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nosy: +pitrou

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[issue35387] Dialogs on IDLE are accompanied by a small black window

[Vlad Tudorache]

Vlad Tudorache  added the comment:

No, I'm wrong, the editor window seems created by the ListedToplevel.

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[issue35387] Dialogs on IDLE are accompanied by a small black window

[Vlad Tudorache]

Vlad Tudorache  added the comment:

At the line 102 in editor.py, I see:

self.top = top = window.ListedToplevel(root, menu=self.menubar)

Looking at window.py it seems that ListedToplevel builds a new Toplevel (the 
black one?) instead of adding an existing one (the editor) at the list, I'll 
check it again, maybe I didn't see right.

The second window does not appear for me when using pure Tcl and toplevel 
widget (from Wish, for exemple) on MacOS, I don't think it's a Tk problem.

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[issue35208] IDLE: Squeezed lines count ignores window width

[Terry J. Reedy]

Change by Terry J. Reedy :


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[issue35213] IDLE: use 'macOS' where appropriate.

[Terry J. Reedy]

Terry J. Reedy  added the comment:

Any more changes can be a future issue.

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

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[issue28775] Option to set startup directory in IDLE

[Terry J. Reedy]

Change by Terry J. Reedy :


--
versions: +Python 3.8 -Python 3.6

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[issue35387] Dialogs on IDLE are accompanied by a small black window

[Vlad Tudorache]

Vlad Tudorache  added the comment:

I confirm the issue. Screenshot attached.

--
type:  -> behavior
Added file: https://bugs.python.org/file47987/Capture d’écran 2018-12-11 à 
22.07.30.png

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[issue35263] Add None handling for get_saved() in IDLE

[Terry J. Reedy]

Change by Terry J. Reedy :


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[issue22121] IDLE should start with HOME as the initial working directory

[Terry J. Reedy]

Change by Terry J. Reedy :


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[issue35379] IDLE's close fails when io.filename set to None

[Terry J. Reedy]

Change by Terry J. Reedy :


--
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nosy: +ned.deily, ronaldoussoren
versions: +Python 3.8

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[issue34162] idlelib/NEWS.txt for 3.8.0 (and backports)

[Terry J. Reedy]

Change by Terry J. Reedy :


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versions:  -Python 3.6

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[issue35450] venv module doesn't create a copy of python binary by default

[Brett Cannon]

Brett Cannon  added the comment:

Obviously if you're willing to create a PR, Marcin, that would be great!

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[issue35450] venv module doesn't create a copy of python binary by default

[Brett Cannon]

Brett Cannon  added the comment:

Correct, that should say something like "copy/symlink of the Python 
binary/binaries (as appropriate by the platform or arguments used at 
environment creation time)."

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[issue35450] venv module doesn't create a copy of python binary by default

[Brett Cannon]

Change by Brett Cannon :


--
stage:  -> needs patch
versions: +Python 3.5, Python 3.6, Python 3.8

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[issue35136] test_ssl fails in AMD64 FreeBSD CURRENT Shared 3.6 buildbot

[Ned Deily]

Ned Deily  added the comment:

On the other hand and also FWIW, test_ssl does pass on the AMD64 FreeBSD 
CURRENT Shared 3.7 buildbot (the same system?) which also has 1.1.1a:
ssl.OPENSSL_VERSION: OpenSSL 1.1.1a  20 Nov 2018

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[issue35136] test_ssl fails in AMD64 FreeBSD CURRENT Shared 3.6 buildbot

[Ned Deily]

Ned Deily  added the comment:

FWIW, test_ssl currently passes on the other FreeBSD 3.6 buildbot: FreeBSD 
10-STABLE Non-Debug 3.6 buildbot.  Among any other differences, the SSL version 
there is older:
ssl.OPENSSL_VERSION: OpenSSL 1.0.1u-freebsd  22 Sep 2016

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[issue35465] Document add_signal_handler

[Hrvoje Nikšić]

New submission from Hrvoje Nikšić :

In https://stackoverflow.com/q/53704709/1600898 a StackOverflow user asked how 
the add_signal_handler event loop method differs from the signal.signal 
normally used by Python code.

The add_signal_handler documentation is quite brief - if we exclude the parts 
that explain the exceptions raised and how to pass keyword arguments to the 
callback, the meat is this sentence:

Set callback as the handler for the signum signal.

It is only after looking at the source, and understanding asyncio, that one 
comes to the conclusion that the idea is to run the handler along with other 
event loop callbacks and coroutines, at the time when it is actually safe to 
invoke asyncio code.

I think this deserves to be mentioned explicitly, for example:

Set callback as the handler for the signum signal.

The callback will be invoked in the thread that runs the event
loop, along with other queued callbacks and runnable coroutines.
Unlike signal handlers registered using signal.signal(), a 
callback registered with this function is allowed to interact
with the event loop.

--
assignee: docs@python
components: Documentation
messages: 331645
nosy: docs@python, hniksic
priority: normal
severity: normal
status: open
title: Document add_signal_handler
versions: Python 3.7, Python 3.8

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[issue35403] support application/wasm in mimetypes and http.server

[pmpp]

pmpp  added the comment:

Sure, but i was considering the cpython in the browser/webview/electron case 
where python modules are served as .wasm files, i'm about to do it for my port 
and pyodide already does. 
It would make sense to provide the *simplest* environnement for cpython to 
serve its own components.

scientific cpython stack in the browser:
https://github.com/iodide-project/pyodide

python repl in the browser experiment:
http://pmpp.pagesperso-orange.fr/python_em.html

Also i think cpython in the browser could be be already beyond testing and so 
far provides the best sandboxing configuration available around :
"run python in a sandbox, not the opposite" ( quoting Victor Stinner )

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[issue35402] Upgrade macOS and Windows installers to Tcl 8.6.9 and Tk 8.6.9.1

[Steve Dower]

Steve Dower  added the comment:

I pushed the raw Tcl and Tk sources for 8.6.9.0 to cpython-source-deps, but it 
looks like we need some patches to be able to build on Windows (the X11 headers 
#define some names that the Windows headers want to use as struct members).

So far I've needed to #undef and redefine None and ControlMask around #include 
 in winmain.c and tkWin.h, but I think that will be enough.

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[issue35214] Get the test suite passing with clang Memory Sanitizer enabled

[Gregory P. Smith]

Gregory P. Smith  added the comment:

I believe there are still some issues to deal with.  I don't want to close the 
issue until I've got my buildbot running.

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[issue35394] Add __slots__ = () to asyncio protocols

[Andrew Svetlov]

Andrew Svetlov  added the comment:


New changeset 5344501ad166c1380be452644a863a4679c4291b by Andrew Svetlov in 
branch 'master':
bpo-35394: Add empty slots to abstract asyncio protocols (#10889)
https://github.com/python/cpython/commit/5344501ad166c1380be452644a863a4679c4291b


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[issue22293] unittest.mock: use slots in MagicMock to reduce memory footprint

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:

James, please confirm that this issue still exists in 3.6 and 3.7.

--
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status: open -> pending

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[issue35214] Get the test suite passing with clang Memory Sanitizer enabled

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:

Is this issue completely fixed?

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[issue30230] Move quick test in PyObject_IsSubClass outside of PyType_CheckExact guard

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:

Any progress?

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versions: +Python 3.8 -Python 3.7

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[issue35456] asyncio.Task.set_result() and set_exception() missing docstrings (and Liskov sub. principle)

[Yury Selivanov]

Yury Selivanov  added the comment:

-1 on this; there is no clear win in doing this refactoring, only a hard to 
estimate chance of making a regression.

Yahya, feel free to tackle other asyncio bugs or improvements, this one is just 
something that we aren't comfortable doing right now.

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stage:  -> resolved
status: open -> closed

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[issue11617] Sporadic failure in test_httpservers

[STINNER Victor]

STINNER Victor  added the comment:


New changeset d336b1c8a40d14054145393fafb54b782cc1a549 by Victor Stinner in 
branch '2.7':
bpo-11617: Try to strengthen test_httpservers (GH-11121)
https://github.com/python/cpython/commit/d336b1c8a40d14054145393fafb54b782cc1a549


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[issue11617] Sporadic failure in test_httpservers

[STINNER Victor]

Change by STINNER Victor :


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status: open -> closed

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[issue35433] Correctly detect installed SDK versions

[Jeremy Kloth]

Jeremy Kloth  added the comment:

All the Windows 3.6 windows buildbots are happy! Thanks to all!

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[issue11617] Sporadic failure in test_httpservers

[STINNER Victor]

Change by STINNER Victor :


--
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pull_requests: +10352
stage:  -> patch review

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[issue11617] Sporadic failure in test_httpservers

[STINNER Victor]

STINNER Victor  added the comment:

Hum, it seems like this bug still exists in Python 2.7. Error from Fedora CI:

test_head_via_send_error (test.test_httpservers.BaseHTTPServerTestCase) ... 
ERROR
(...)
ERROR: test_head_via_send_error (test.test_httpservers.BaseHTTPServerTestCase)
--
Traceback (most recent call last):
  File "/builddir/build/BUILD/Python-2.7.15/Lib/test/test_httpservers.py", line 
303, in test_head_via_send_error
res = self.con.getresponse()
  File "/builddir/build/BUILD/Python-2.7.15/Lib/httplib.py", line 1121, in 
getresponse
response.begin()
  File "/builddir/build/BUILD/Python-2.7.15/Lib/httplib.py", line 438, in begin
version, status, reason = self._read_status()
  File "/builddir/build/BUILD/Python-2.7.15/Lib/httplib.py", line 402, in 
_read_status
raise BadStatusLine(line)
BadStatusLine: ''

--
resolution: fixed -> 
status: closed -> open
versions: +Python 2.7

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[issue35455] Solaris thread_time doesn't work with current implementation

[Jakub Kulik]

Change by Jakub Kulik :


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[issue35464] json.dumps very unclear exception

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:

This was changed in 3.6 (issue26623). Upgrade to 3.6+ for better error messages.

--
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resolution:  -> out of date
stage:  -> resolved
status: open -> closed

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[issue16039] imaplib: unlimited readline() from connection

[STINNER Victor]

Change by STINNER Victor :


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[issue35464] json.dumps very unclear exception

[Or]

New submission from Or :

when dumping a value coming from numpy.random.choice([True,False]) the 
exception raised is very unclear.

json.dumps(result)

  File 
"/usr/local/Cellar/python@2/2.7.15/Frameworks/Python.framework/Versions/2.7/lib/python2.7/json/encoder.py",
 line 184, in default
raise TypeError(repr(o) + " is not JSON serializable")

which prints "True is not JSON serializable" - but it should actually print 
" is not JSON serializable".

--
components: Library (Lib)
messages: 331632
nosy: orshemy
priority: normal
severity: normal
status: open
title: json.dumps very unclear exception
type: behavior
versions: Python 2.7

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[issue35463] mock uses incorrect signature for partial and partialmethod with autospec

[Karthikeyan Singaravelan]

New submission from Karthikeyan Singaravelan :

This is a bug report for https://bugs.python.org/issue17185#msg331149 that I 
was asked to raise as a separate issue.

1. When we call create_autospec it calls _get_signature_object that gets the 
signature for the given parameter. With functools.partial it returns a partial 
object and hence while getting the signature it returns the signature for the 
constructor of partial instead of the underlying function passed to 
functools.partial. I think a check needs to be added to make sure not to use 
func.__init__ when it's a partial object.

2. When we call create_autospect on a class that has a partialmethod the self 
parameter is not skipped in the signature and thus it creates a signature with 
self causing error. The fix would be to handle partialmethod also in _must_skip 
that determines whether to skip self or not.


Sample reproducer : 

from functools import partial, partialmethod
from unittest.mock import create_autospec
import inspect

def foo(a, b):
pass

p = partial(foo, 1)
m = create_autospec(p)
m(1, 2, 3) # passes since signature is set as (*args, **kwargs) the signature 
of functools.partial constructor. This should throw TypeError under autospec


class A:

def f(self, a, b):
print(a, b)

g = partialmethod(f, 1)

m = create_autospec(A)
m().g(1, 2) # passes since signature is set as (self, b) and self is not 
skipped in _must_skip thus self=1, b=2. This should throw TypeError under 
autospec since the valid call is m().g(2)

--
components: Library (Lib)
messages: 331631
nosy: cjw296, mariocj89, michael.foord, pablogsal, xtreak
priority: normal
severity: normal
status: open
title: mock uses incorrect signature for partial and partialmethod with autospec
type: behavior
versions: Python 3.7, Python 3.8

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[issue20118] test_imaplib test_linetoolong fails on 2.7 in SSL test on some buildbots

[STINNER Victor]

STINNER Victor  added the comment:

Oh, AppVeyor failed on my PR:

test_linetoolong (test.test_imaplib.ThreadedNetworkedTestsSSL) ...
creating server
server created
ADDR = ('127.0.0.1', 0)
CLASS = test.test_imaplib.SecureTCPServer
HDLR = test.test_imaplib.TooLongHandler
server running
waiting for server
done
ERROR

(...)

ERROR: test_linetoolong (test.test_imaplib.ThreadedNetworkedTestsSSL)
--
Traceback (most recent call last):
  File "C:\projects\cpython\lib\test\test_imaplib.py", line 176, in 
test_linetoolong
self.imap_class, *server.server_address)
  File "C:\projects\cpython\lib\unittest\case.py", line 473, in assertRaises
callableObj(*args, **kwargs)
  File "C:\projects\cpython\lib\imaplib.py", line 1169, in __init__
IMAP4.__init__(self, host, port)
  File "C:\projects\cpython\lib\imaplib.py", line 203, in __init__
typ, dat = self.capability()
  File "C:\projects\cpython\lib\imaplib.py", line 377, in capability
typ, dat = self._simple_command(name)
  File "C:\projects\cpython\lib\imaplib.py", line 1091, in _simple_command
return self._command_complete(name, self._command(name, *args))
  File "C:\projects\cpython\lib\imaplib.py", line 913, in _command_complete
typ, data = self._get_tagged_response(tag)
  File "C:\projects\cpython\lib\imaplib.py", line 1020, in _get_tagged_response
self._get_response()
  File "C:\projects\cpython\lib\imaplib.py", line 932, in _get_response
resp = self._get_line()
  File "C:\projects\cpython\lib\imaplib.py", line 1030, in _get_line
line = self.readline()
  File "C:\projects\cpython\lib\imaplib.py", line 1192, in readline
return self.file.readline()
  File "C:\projects\cpython\lib\socket.py", line 451, in readline
data = self._sock.recv(self._rbufsize)
  File "C:\projects\cpython\lib\ssl.py", line 772, in recv
return self.read(buflen)
  File "C:\projects\cpython\lib\ssl.py", line 659, in read
v = self._sslobj.read(len)
error: [Errno 10053] An established connection was aborted by the software in 
your host machine

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[issue34172] multiprocessing.Pool and ThreadPool leak resources after being deleted

[STINNER Victor]

STINNER Victor  added the comment:

I started a thread on python-dev to discuss these issues:
https://mail.python.org/pipermail/python-dev/2018-December/155946.html

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[issue35462] test_imaplib.test_enable_UTF8_True_append() failed on AMD64 FreeBSD 10-STABLE Non-Debug 3.7

[STINNER Victor]

STINNER Victor  added the comment:

See also:

* bpo-30175, bpo-30648: removed "client x509 certificate" tests using public 
cyrus.andrew.cmu.edu server
* bpo-30231: removed tests since the public server stopped working.

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[issue35462] test_imaplib.test_enable_UTF8_True_append() failed on AMD64 FreeBSD 10-STABLE Non-Debug 3.7

[STINNER Victor]

STINNER Victor  added the comment:

Note: in the same buildbot build, test_imaplib passed when re-run in verbose 
mode.

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[issue35462] test_imaplib.test_enable_UTF8_True_append() failed on AMD64 FreeBSD 10-STABLE Non-Debug 3.7

[STINNER Victor]

New submission from STINNER Victor :

AMD64 FreeBSD 10-STABLE Non-Debug 3.7:
https://buildbot.python.org/all/#/builders/170/builds/200

Note: this buildbot is *very* slow.


test_enable_UTF8_True_append (test.test_imaplib.NewIMAPTests) ...

SENT: b'* OK IMAP4rev1'
GOT: b'PJHE0 CAPABILITY'
SENT: b'* CAPABILITY IMAP4rev1 ENABLE UTF8=ACCEPT'
SENT: b'PJHE0 OK CAPABILITY completed'
ERROR

(...)
ERROR: test_enable_UTF8_True_append (test.test_imaplib.NewIMAPTests)
--
Traceback (most recent call last):
  File 
"/usr/home/buildbot/python/3.7.koobs-freebsd10.nondebug/build/Lib/test/test_imaplib.py",
 line 297, in test_enable_UTF8_True_append
code, _ = client.authenticate('MYAUTH', lambda x: b'fake')
  File 
"/usr/home/buildbot/python/3.7.koobs-freebsd10.nondebug/build/Lib/imaplib.py", 
line 428, in authenticate
typ, dat = self._simple_command('AUTHENTICATE', mech)
  File 
"/usr/home/buildbot/python/3.7.koobs-freebsd10.nondebug/build/Lib/imaplib.py", 
line 1196, in _simple_command
return self._command_complete(name, self._command(name, *args))
  File 
"/usr/home/buildbot/python/3.7.koobs-freebsd10.nondebug/build/Lib/imaplib.py", 
line 989, in _command
while self._get_response():
  File 
"/usr/home/buildbot/python/3.7.koobs-freebsd10.nondebug/build/Lib/imaplib.py", 
line 1047, in _get_response
resp = self._get_line()
  File 
"/usr/home/buildbot/python/3.7.koobs-freebsd10.nondebug/build/Lib/imaplib.py", 
line 1151, in _get_line
raise self.abort('socket error: EOF')
imaplib.IMAP4.abort: socket error: EOF


See also bpo-20118 ("test_imaplib test_linetoolong fails on 2.7 in SSL test on 
some buildbots").

--
components: Tests
messages: 331626
nosy: pablogsal, vstinner
priority: normal
severity: normal
status: open
title: test_imaplib.test_enable_UTF8_True_append() failed on AMD64 FreeBSD 
10-STABLE Non-Debug 3.7
versions: Python 3.7

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[issue20118] test_imaplib test_linetoolong fails on 2.7 in SSL test on some buildbots

[STINNER Victor]

STINNER Victor  added the comment:

I wrote PR 11120 to reenable the skipped test. If the test will start again, I 
will try to fix it. If I cannot fix the test, I will skip again the test but 
close this issue.

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[issue20118] test_imaplib test_linetoolong fails on 2.7 in SSL test on some buildbots

[STINNER Victor]

Change by STINNER Victor :


--
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pull_requests: +10350
stage: needs patch -> patch review

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[issue20118] test_imaplib test_linetoolong fails on 2.7 in SSL test on some buildbots

[STINNER Victor]

STINNER Victor  added the comment:

4 years later the test is still skipped. That's a good example of "temporary 
fix" :-)

David: Should we just close the issue, or is there anyone around interested to 
work on a fix? Sadly, the issue doesn't provide the error message and I'm not 
sure how to reproduce the bug.

Maybe the bug has been fixed in the meanwhile? Example of SocketServer fix:

commit ba8474b77dd86d8dde40eaa7a4a6715a476d6242
Author: Martin Panter 
Date:   Thu Feb 18 10:43:55 2016 +

Issue #26309: Shut down SocketServer request if verify_request() is false

Based on patch by Aviv Palivoda.

--

On Fedora 29, I tried to reproduce the bug by running many tests in parallel:

(*) Run test_linetoolong in a loop, 4 processes:

./python -m test -u all -F -m 
test.test_imaplib.ThreadedNetworkedTests.test_linetoolong test_imaplib 

(*) Run test_imaplib in a loop, 4 processes:

./python -m test -u all -v -F test_imaplib

(*) Stress the system (run the Python test suite in a loop), 2 processes:

./python -m test -r -u all,-gui -j0 -F

(*) Stress the CPU using my script (to ensure that the system load is at least 
10)

system_load.py 10

7 minutes later, test_linetoolong has been run 11629 times x 4 processes and 
it's still pass.

--
nosy: +pablogsal, vstinner

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[issue35460] Add PyDict_GetItemStringWithError

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:

PyDict_GetItemString() is an old API from times when dicts could contain only 
string keys. It is not necessary part of the C API and can be replaced with 
PyDict_GetItem() in new code. It was kept only as a convenient function.

In issue35459 many uses of PyDict_GetItemString() were replaced with 
PyDict_GetItemWithError() and private _PyDict_GetItemIdWithError(). Only 4 
occurrences were replaced with newly added private 
_PyDict_GetItemStringWithError(). And they could use PyDict_GetItem(). So there 
are not much use cases for PyDict_GetItemStringWithError().

Before adding PyDict_GetItemStringWithError() we could consider alternatives.

*WithError() functions require calling PyErr_Occurred() to distinguish the 
error case from the "not found" case. This adds an overhead which can be not 
small in performance critical code. It would be better if the API function 
returned a three-state value: "found", "not found" and "error". See for example 
_PyObject_LookupAttr(). I am not sure this is the best design.

--
dependencies: +Document C API functions which swallow exceptions
nosy: +serhiy.storchaka

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[issue15095] test_imaplib problem - intermittent skips and LOGINDISABLED not reported

[STINNER Victor]

STINNER Victor  added the comment:

I didn't see this error recently so I close this old issue.

--
nosy: +vstinner
resolution:  -> out of date
stage:  -> resolved
status: open -> closed

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[issue35459] Use PyDict_GetItemWithError() instead of PyDict_GetItem()

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:

Opened issue35461 for documenting flaws of PyDict_GetItem().

--

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[issue35461] Document C API functions which swallow exceptions

[Serhiy Storchaka]

Change by Serhiy Storchaka :


--
keywords: +patch
pull_requests: +10349
stage:  -> patch review

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[issue35461] Document C API functions which swallow exceptions

[Serhiy Storchaka]

New submission from Serhiy Storchaka :

C API functions like PyDict_GetItem() and PyObject_HasAttr() suppresses all 
errors that may occur, including MemoryError and KeyboardInterrupt. They can 
return incorrect result when the memory is exhausted or the user presses 
Ctrl-C. The proposed PR documents such functions and suggests the C API which 
do not swallow unrelated exceptions.

Previous attempt to document this (for PyDict_GetItem() only) was in issue20615.

--
assignee: docs@python
components: Documentation
messages: 331620
nosy: docs@python, rhettinger, ronaldoussoren, serhiy.storchaka, vstinner
priority: normal
severity: normal
status: open
title: Document C API functions which swallow exceptions
type: enhancement
versions: Python 2.7, Python 3.6, Python 3.7, Python 3.8

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[issue35444] Unify and optimize the helper for getting a builtin object

[Serhiy Storchaka]

Change by Serhiy Storchaka :


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

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[issue35444] Unify and optimize the helper for getting a builtin object

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:


New changeset 7211d306d4c2f73732540759e20dd17bd18b3361 by Serhiy Storchaka in 
branch 'master':
Remove an unused variable after bpo-35444. (GH-7)
https://github.com/python/cpython/commit/7211d306d4c2f73732540759e20dd17bd18b3361


--

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[issue35426] test_signal.test_interprocess_signal() race condition

[STINNER Victor]

STINNER Victor  added the comment:

Thanks Pablo Galindo for the quick fix!

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

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[issue35455] Solaris thread_time doesn't work with current implementation

[Jakub Kulik]

Change by Jakub Kulik :


--
pull_requests: +10347
stage:  -> patch review

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[issue35412] test_future4 ran no test

[miss-islington]

miss-islington  added the comment:


New changeset 97568761a6adb64d750fb0ea68484f67ae5e54f7 by Miss Islington (bot) 
in branch '3.6':
bpo-35412: Skip test_multiprocessing_fork and test_multiprocessing_forkserver 
on Windows (GH-11086)
https://github.com/python/cpython/commit/97568761a6adb64d750fb0ea68484f67ae5e54f7


--

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[issue35412] test_future4 ran no test

[miss-islington]

miss-islington  added the comment:


New changeset d55a896cd63e72e2848c48226d031d612539ea2a by Miss Islington (bot) 
in branch '3.7':
bpo-35412: Skip test_multiprocessing_fork and test_multiprocessing_forkserver 
on Windows (GH-11086)
https://github.com/python/cpython/commit/d55a896cd63e72e2848c48226d031d612539ea2a


--
nosy: +miss-islington

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[issue35444] Unify and optimize the helper for getting a builtin object

[STINNER Victor]

STINNER Victor  added the comment:

I reopen the issuue. Commit bb86bf4c4eaa30b1f5192dab9f389ce0bb61114d introduced 
a new compiler warning:

gcc -pthread -c -Wno-unused-result -Wsign-compare -g -Og -Wall -O0   -std=c99 
-Wextra -Wno-unused-result -Wno-unused-parameter 
-Wno-missing-field-initializers -Werror=implicit-function-declaration  
-I./Include/internal  -I. -I./Include-DPy_BUILD_CORE -o Objects/object.o 
Objects/object.c

In file included from ./Include/object.h:715,
 from ./Include/pytime.h:6,
 from ./Include/Python.h:75,
 from Objects/object.c:4:
./Include/cpython/object.h:37:51: warning: 'PyId_builtins' defined but not used 
[-Wunused-variable]
 #define _Py_IDENTIFIER(varname) _Py_static_string(PyId_##varname, #varname)
   ^
./Include/cpython/object.h:36:66: note: in definition of macro 
'_Py_static_string'
 #define _Py_static_string(varname, value)  static _Py_Identifier varname = 
_Py_static_string_init(value)
  ^~~
Objects/object.c:20:1: note: in expansion of macro '_Py_IDENTIFIER'
 _Py_IDENTIFIER(builtins);
 ^~

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

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[issue35444] Unify and optimize the helper for getting a builtin object

[Serhiy Storchaka]

Change by Serhiy Storchaka :


--
pull_requests: +10346
stage: resolved -> patch review

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