[docs] [issue37670] Description of UserDict is misleading

[Caleb Donovick]

New submission from Caleb Donovick <donovick at cs.stanford.edu>:

The documentation for collections.UserDict states "In addition to supporting the methods and operations of mappings, UserDict instances provide the following attribute:  ..."

This however is misleading as it supports the operations of mutable mappings. Which is not stated anywhere.

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assignee: docs at python
components: Documentation
messages: 348393
nosy: docs at python, donovick
priority: normal
severity: normal
status: open
title: Description of UserDict is misleading

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue37670>
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