[docs] [issue21434] python -3 documentation is outdated

[Roundup Robot]

Roundup Robot added the comment:

New changeset ae2e8bfda7d7 by Benjamin Peterson in branch '2.7':
remove list of example incompatibilities (closes #21434)
http://hg.python.org/cpython/rev/ae2e8bfda7d7

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nosy: +python-dev
resolution:  -> fixed
stage: commit review -> resolved
status: open -> closed

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue21434>
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