[issue22572] NoneType object is not iterable error when asyncio Server.close() called

[STINNER Victor]

STINNER Victor added the comment:

Maybe we should more checks in debug mode in the Server class? For example, loop.call_soon() raises an AssertionError if it is called from the "wrong" thread" in debug mode.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue22572>
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