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gh-127949: deprecate asyncio.set_event_loop (#128218)

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Deprecate `asyncio.set_event_loop` to be removed in Python 3.16.
This commit is contained in:
Kumar Aditya 2024-12-24 19:24:28 +05:30 • committed by GitHub
parent 3ddd70ceaa
commit 9fce906825
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GPG key ID: B5690EEEBB952194
16 changed files with 77 additions and 55 deletions
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2
Lib/asyncio/__main__.py
View file

@ -149,7 +149,7 @@ if __name__ == '__main__':
return_code = 0
loop = asyncio.new_event_loop()
asyncio.set_event_loop(loop)
asyncio._set_event_loop(loop)
repl_locals = {'asyncio': asyncio}
for key in {'__name__', '__package__',

32
Lib/asyncio/events.py
View file

@ -5,16 +5,22 @@
# SPDX-FileCopyrightText: Copyright (c) 2015-2021 MagicStack Inc. http://magic.io
__all__ = (
'_AbstractEventLoopPolicy',
'AbstractEventLoop', 'AbstractServer',
'Handle', 'TimerHandle',
'_get_event_loop_policy',
'get_event_loop_policy',
'_set_event_loop_policy',
'set_event_loop_policy',
'get_event_loop', 'set_event_loop', 'new_event_loop',
'_set_running_loop', 'get_running_loop',
'_get_running_loop',
"_AbstractEventLoopPolicy",
"AbstractEventLoop",
"AbstractServer",
"Handle",
"TimerHandle",
"_get_event_loop_policy",
"get_event_loop_policy",
"_set_event_loop_policy",
"set_event_loop_policy",
"get_event_loop",
"_set_event_loop",
"set_event_loop",
"new_event_loop",
"_set_running_loop",
"get_running_loop",
"_get_running_loop",
)
import contextvars
@ -801,9 +807,13 @@ def get_event_loop():
return _get_event_loop_policy().get_event_loop()
def _set_event_loop(loop):
_get_event_loop_policy().set_event_loop(loop)
def set_event_loop(loop):
"""Equivalent to calling get_event_loop_policy().set_event_loop(loop)."""
_get_event_loop_policy().set_event_loop(loop)
warnings._deprecated('asyncio.set_event_loop', remove=(3,16))
_set_event_loop(loop)
def new_event_loop():

4
Lib/asyncio/runners.py
View file

@ -74,7 +74,7 @@ class Runner:
loop.shutdown_default_executor(constants.THREAD_JOIN_TIMEOUT))
finally:
if self._set_event_loop:
events.set_event_loop(None)
events._set_event_loop(None)
loop.close()
self._loop = None
self._state = _State.CLOSED
@ -147,7 +147,7 @@ class Runner:
if not self._set_event_loop:
# Call set_event_loop only once to avoid calling
# attach_loop multiple times on child watchers
events.set_event_loop(self._loop)
events._set_event_loop(self._loop)
self._set_event_loop = True
else:
self._loop = self._loop_factory()