[issue42489] Wrong method signature in python Documentation

[Chuan Lotus]

New submission from Chuan Lotus <lotus_chuan at qq.com>:

In python 3.9.1 documentation tutorial 5.1,the method list.sort(key=None, reverse=False) lacks '*' before 'key=None', which may be confused.

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components: macOS
messages: 381984
nosy: lotus_chuan, ned.deily, ronaldoussoren
priority: normal
severity: normal
status: open
title: Wrong method signature in python Documentation
versions: Python 3.9

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue42489>
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