[issue30945] loop.create_server does not detect if the interface is IPv6 enabled

[Yury Selivanov]

Yury Selivanov <yselivanov at gmail.com> added the comment:

> asyncio is picking ipv6 because of this code:

> https://github.com/python/cpython/blob/a445feb72902e4a3c5ae712f0c289309e1580d52/Lib/asyncio/base_events.py#L1334-L1340

> despite my host not actually having an ipv6 network hooked up.

Which should be fine; create_server enumerates all addresses and tries to connect to each one. IPV6_V6ONLY is only applied to one socket for one IPv6 address.  I think Antoine's patch is OK.

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<https://bugs.python.org/issue30945>
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