[issue45097] "The loop argument is deprecated" reported when user code does not use it

[Chih-Hsuan Yen]

Change by Chih-Hsuan Yen :


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nosy:  -yan12125

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[issue45097] "The loop argument is deprecated" reported when user code does not use it

[Matej Cepl]

Change by Matej Cepl :


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nosy: +mcepl

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[issue45097] "The loop argument is deprecated" reported when user code does not use it

[Łukasz Langa]

Łukasz Langa  added the comment:


New changeset a328a13b70ea0b0bec8b9d1b0067628369cabea9 by Serhiy Storchaka in 
branch '3.9':
[3.9] bpo-45097: Fix deprecation warnings in test_asyncio (GH-28236)
https://github.com/python/cpython/commit/a328a13b70ea0b0bec8b9d1b0067628369cabea9


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[issue45097] "The loop argument is deprecated" reported when user code does not use it

[Serhiy Storchaka]

Change by Serhiy Storchaka :


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pull_requests: +26656
pull_request: https://github.com/python/cpython/pull/28236

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[issue45097] "The loop argument is deprecated" reported when user code does not use it

[Chih-Hsuan Yen]

Chih-Hsuan Yen  added the comment:

Many thanks for the fast and great fix!

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[issue45097] "The loop argument is deprecated" reported when user code does not use it

[Serhiy Storchaka]

Change by Serhiy Storchaka :


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

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[issue45097] "The loop argument is deprecated" reported when user code does not use it

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:


New changeset 2ad114ddffbeeef1d20f26571b85a66974295667 by Miss Islington (bot) 
in branch '3.10':
[3.10] bpo-45097: Add more tests for shutdown_asyncgens() (GH-28154) (GH-28159)
https://github.com/python/cpython/commit/2ad114ddffbeeef1d20f26571b85a66974295667


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[issue45097] "The loop argument is deprecated" reported when user code does not use it

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:


New changeset c2970fdec52788b6d9ff419ab7e31f255d87433d by Serhiy Storchaka in 
branch 'main':
bpo-45097: Add more tests for shutdown_asyncgens() (GH-28154)
https://github.com/python/cpython/commit/c2970fdec52788b6d9ff419ab7e31f255d87433d


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[issue45097] "The loop argument is deprecated" reported when user code does not use it

[miss-islington]

Change by miss-islington :


--
nosy: +miss-islington
nosy_count: 5.0 -> 6.0
pull_requests: +26591
pull_request: https://github.com/python/cpython/pull/28159

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[issue45097] "The loop argument is deprecated" reported when user code does not use it

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:


New changeset c967bd523caabb05bf5988449487d7c1717f3ac6 by Serhiy Storchaka in 
branch '3.9':
[3.9] bpo-45097: Remove incorrect deprecation warnings in asyncio. (GH-28153)
https://github.com/python/cpython/commit/c967bd523caabb05bf5988449487d7c1717f3ac6


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[issue45097] "The loop argument is deprecated" reported when user code does not use it

[Serhiy Storchaka]

Change by Serhiy Storchaka :


--
pull_requests: +26590
pull_request: https://github.com/python/cpython/pull/28154

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[issue45097] "The loop argument is deprecated" reported when user code does not use it

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:

There are several calls of gather() and sleep() with the loop argument from the 
asyncio library. Since all deprecation warnings were silenced in tests it was 
unnoticed.

PR 28153 fixes the asyncio library, enables deprecation warnings in tests, 
fixes tests producing warnings and add several new tests for uncovered code. 
New tests will be ported to master later.

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nosy: +lukasz.langa
priority: normal -> release blocker

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[issue45097] "The loop argument is deprecated" reported when user code does not use it

[Serhiy Storchaka]

Change by Serhiy Storchaka :


--
keywords: +patch
pull_requests: +26589
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/28153

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[issue45097] "The loop argument is deprecated" reported when user code does not use it

[Serhiy Storchaka]

Change by Serhiy Storchaka :


--
assignee:  -> serhiy.storchaka

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[issue45097] "The loop argument is deprecated" reported when user code does not use it

[Serhiy Storchaka]

Change by Serhiy Storchaka :


--
nosy: +serhiy.storchaka

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[issue45097] "The loop argument is deprecated" reported when user code does not use it

[Chih-Hsuan Yen]

New submission from Chih-Hsuan Yen :

With Python 3.9.7, "DeprecationWarning: The loop argument is deprecated" may be 
reported when user code does not use it. Here is an example:

import asyncio
import warnings

warnings.filterwarnings('error')

def crash():
raise KeyboardInterrupt

async def main():
asyncio.get_event_loop().call_soon(crash)
await asyncio.sleep(5)

try:
asyncio.run(main())
except KeyboardInterrupt:
pass

On 3.9.6, no warning is reported, while results on 3.9.7 are

Traceback (most recent call last):
  File "/usr/lib/python3.9/asyncio/runners.py", line 44, in run
return loop.run_until_complete(main)
  File "/usr/lib/python3.9/asyncio/base_events.py", line 629, in 
run_until_complete
self.run_forever()
  File "/usr/lib/python3.9/asyncio/base_events.py", line 596, in run_forever
self._run_once()
  File "/usr/lib/python3.9/asyncio/base_events.py", line 1890, in _run_once
handle._run()
  File "/usr/lib/python3.9/asyncio/events.py", line 80, in _run
self._context.run(self._callback, *self._args)
  File 
"/home/yen/var/local/Computer/archlinux/community/python-anyio/trunk/cpython-3.9.7-regression.py",
 line 11, in crash
raise KeyboardInterrupt
KeyboardInterrupt

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File 
"/home/yen/var/local/Computer/archlinux/community/python-anyio/trunk/cpython-3.9.7-regression.py",
 line 18, in 
asyncio.run(main())
  File "/usr/lib/python3.9/asyncio/runners.py", line 47, in run
_cancel_all_tasks(loop)
  File "/usr/lib/python3.9/asyncio/runners.py", line 64, in _cancel_all_tasks
tasks.gather(*to_cancel, loop=loop, return_exceptions=True))
  File "/usr/lib/python3.9/asyncio/tasks.py", line 755, in gather
warnings.warn("The loop argument is deprecated since Python 3.8, "
DeprecationWarning: The loop argument is deprecated since Python 3.8, and 
scheduled for removal in Python 3.10.

As indicated by the traceback, the loop argument is used inside the asyncio 
library, not from user code. It has been an issue for some time, and the issue 
is exposed after changes for issue44815.

Credit: this example code is modified from an anyio test 
https://github.com/agronholm/anyio/blob/3.3.0/tests/test_taskgroups.py#L943. I 
noticed this issue when I was testing anyio against 3.9.7.

--
components: asyncio
messages: 401032
nosy: asvetlov, yan12125, yselivanov
priority: normal
severity: normal
status: open
title: "The loop argument is deprecated" reported when user code does not use it
type: behavior
versions: Python 3.9

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