[issue30969] Docs should say that `x is z or x == z` is used for `x in y` in containers that do not implement `__contains__`

[Cheryl Sabella]

Cheryl Sabella <cheryl.sabella at gmail.com> added the comment:


New changeset 2f5b9dcc0a89cbde1499c76df81c36bfd5ef9aa8 by Cheryl Sabella (Antti Haapala) in branch 'master':
bpo-30969: Fix docs about the comparison in absence of __contains__ (GH-2761)
https://github.com/python/cpython/commit/2f5b9dcc0a89cbde1499c76df81c36bfd5ef9aa8


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nosy: +cheryl.sabella

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<https://bugs.python.org/issue30969>
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