[issue30096] Update examples in abc documentation to use abc.ABC

[Brett Cannon]

New submission from Brett Cannon:

I noticed that the documentation for the abc module (https://docs.python.org/3/library/abc.html) has all example classes use ABCMeta instead of ABC which is what most people probably want. To keep things simple the docs should probably be updated to inherit from abc.ABC.

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assignee: docs at python
components: Documentation
messages: 291842
nosy: brett.cannon, docs at python
priority: normal
severity: normal
stage: needs patch
status: open
title: Update examples in abc documentation to use abc.ABC
type: enhancement
versions: Python 3.7

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue30096>
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