[docs] [issue37730] NotImplemented is used instead of NotImplementedError in docs

[Serhiy Storchaka]

New submission from Serhiy Storchaka <storchaka+cpython at gmail.com>:

In some places in the documentation NotImplemented is used instead of correct NotImplementedError.

All occurrences of NotImplemented should be manually checked and wrong spelling should be corrected.

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assignee: docs at python
components: Documentation
keywords: easy, newcomer friendly
messages: 348801
nosy: docs at python, serhiy.storchaka
priority: normal
severity: normal
status: open
title: NotImplemented is used instead of NotImplementedError in docs
versions: Python 2.7, Python 3.7, Python 3.8, Python 3.9

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue37730>
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