[docs] [issue36198] Misleading in library/sets document

[Han]

New submission from Han <phoenix.seek at gmail.com>:

Doc/library/sets.rst said operation s.update(t)'s result is "return set s with elements added from t".
But update()'s return value is None.
I think change it to "set s with elements added from t" would be better.
So are operations intersection_update(), difference_update(), and symmetric_difference_update().

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assignee: docs at python
components: Documentation
messages: 337192
nosy: DeadmanWalking, docs at python
priority: normal
severity: normal
status: open
title: Misleading in library/sets document
versions: Python 2.7

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue36198>
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