[issue21326] asyncio: request clearer error message when event loop closed

[STINNER Victor]

STINNER Victor added the comment:

This issue was discussed on the python-dev mailing list. The conclusion is that adding a new method to asyncio is safe because asyncio has a "provisional API" (whereas the selectors module doesn't).

Ok, Python 3.4.2 will have the new method BaseEventLoop.is_closed(), that's all.

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versions: +Python 3.4

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<http://bugs.python.org/issue21326>
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