[issue36221] Setting PYTHONASYNCIODEBUG breaks warnings

[Denis S. Otkidach]

Denis S. Otkidach  added the comment:

It's fixed in 3.8 final, but the problem persists in 3.7.5

--
versions:  -Python 3.8

___
Python tracker 

___
___
Python-bugs-list mailing list
Unsubscribe: 
https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com

[issue36221] Setting PYTHONASYNCIODEBUG breaks warnings

[Alexey Kostyrin]

Alexey Kostyrin  added the comment:

Can not reproduce - warning is displayed with PYTHONASYNCIODEBUG=1 
Python version:
Python 3.8.0b1+ (heads/3.8:3f7629d93c, Jun 10 2019, 13:46:55) 
[Clang 10.0.0 (clang-1000.10.44.4)] on darwin

--
nosy: +def_bk

___
Python tracker 

___
___
Python-bugs-list mailing list
Unsubscribe: 
https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com

[issue36221] Setting PYTHONASYNCIODEBUG breaks warnings

[Denis S. Otkidach]

New submission from Denis S. Otkidach :

Test script:

-->8--
import asyncio

@asyncio.coroutine
def test():
with (yield from asyncio.Lock()):
pass

asyncio.run(test())
-->8--

Correct behavior without flag (warning is reported and points to correct line 
of code):
---
$ python test.py 
test.py:5: DeprecationWarning: 'with (yield from lock)' is deprecated use 
'async with lock' instead
  with (yield from asyncio.Lock()):
---

Setting PYTHONASYNCIODEBUG flag disables warning:
---
$ PYTHONASYNCIODEBUG=1 python test.py
$
---

Warning is back explicitly turned on, but points to incorrect position in stack:
---
$ PYTHONASYNCIODEBUG=1 python -Wall test.py 
lib/python3.8/asyncio/coroutines.py:58: DeprecationWarning: 'with (yield from 
lock)' is deprecated use 'async with lock' instead
  return self.gen.send(None)
---

Another way to enable debugging doesn't disable warnings, but break its 
location too:
---
$ python -Xdev test.py 
lib/python3.8/asyncio/coroutines.py:58: DeprecationWarning: 'with (yield from 
lock)' is deprecated use 'async with lock' instead
  return self.gen.send(None)
---

--
components: asyncio
messages: 337366
nosy: asvetlov, ods, yselivanov
priority: normal
severity: normal
status: open
title: Setting PYTHONASYNCIODEBUG breaks warnings
type: behavior
versions: Python 3.7, Python 3.8

___
Python tracker 

___
___
Python-bugs-list mailing list
Unsubscribe: 
https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com