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Add asyncio.get_running_loop() function #76450

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1st1 opened this issue Dec 10, 2017 · 2 comments
Closed

Add asyncio.get_running_loop() function #76450

1st1 opened this issue Dec 10, 2017 · 2 comments
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3.7 (EOL) end of life topic-asyncio type-feature A feature request or enhancement

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1st1 commented Dec 10, 2017

BPO 32269
Nosy @asvetlov, @1st1
PRs
  • bpo-32269: Add asyncio.get_running_loop(). #4782
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    Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.

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    GitHub fields:

    assignee = 'https://github.com/1st1'
closed_at = <Date 2017-12-11.15:08:02.879>
created_at = <Date 2017-12-10.17:08:44.727>
labels = ['type-feature', '3.7', 'expert-asyncio']
title = 'Add `asyncio.get_running_loop()` function'
updated_at = <Date 2017-12-11.15:08:52.294>
user = 'https://github.com/1st1'

    bugs.python.org fields:

    activity = <Date 2017-12-11.15:08:52.294>
actor = 'yselivanov'
assignee = 'yselivanov'
closed = True
closed_date = <Date 2017-12-11.15:08:02.879>
closer = 'yselivanov'
components = ['asyncio']
creation = <Date 2017-12-10.17:08:44.727>
creator = 'yselivanov'
dependencies = []
files = []
hgrepos = []
issue_num = 32269
keywords = ['patch']
message_count = 2.0
messages = ['307961', '308051']
nosy_count = 2.0
nosy_names = ['asvetlov', 'yselivanov']
pr_nums = ['4782']
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue32269'
versions = ['Python 3.7']
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    1st1 commented Dec 10, 2017

    In many contexts asyncio._get_running_loop() is more useful than asyncio.get_event_loop(). The former function is predictable and simple, the latter can change its behaviour depending on the current policy and can even create new event loops.

    Both asyncio._get_running_loop() and asyncio._set_running_loop() are public asyncio API, although the leading underscore suggests that they are special and shouldn't be used by regular users. That's true for asyncio._set_running_loop(), which is intended to be used by event loops exclusively.

    I propose to remove the leading underscore from asyncio._get_running_loop(), making it asyncio.get_running_loop(), and thus promoting a safer alternative to asyncio.get_event_loop().

    asyncio._get_running_loop() will be deprecated and removed in Python 3.9.

    @1st1 1st1 self-assigned this Dec 10, 2017
    @1st1 1st1 added topic-asyncio 3.7 (EOL) end of life type-feature A feature request or enhancement labels Dec 10, 2017
    @1st1 1st1 closed this as completed Dec 11, 2017
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    1st1 commented Dec 11, 2017

    asyncio._get_running_loop() will be deprecated and removed in Python 3.9.

    _get_running_loop() was left as-is.

    @ezio-melotti ezio-melotti transferred this issue from another repository Apr 10, 2022
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