[issue47062] Implement asyncio.Runner context manager

[Andrew Svetlov]

New submission from Andrew Svetlov <andrew.svetlov at gmail.com>:

Sometimes asyncio.run() is not enough.

For example, unittest test case needs to call several async functions (setup, test, teardown) from the synchronous code using the same execution context and event loop.

The proposal provides the following:

with Runner() as runner:
  runner.run(async_func())

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components: asyncio
messages: 415527
nosy: asvetlov, yselivanov
priority: normal
severity: normal
status: open
title: Implement asyncio.Runner context manager
versions: Python 3.11

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue47062>
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