[docs] [issue18803] Fix more typos in .py files

[Roundup Robot]

Roundup Robot added the comment:

New changeset 33b156e118c0 by Ezio Melotti in branch '2.7':
#18803: fix more typos.  Patch by Févry Thibault.
http://hg.python.org/cpython/rev/33b156e118c0

New changeset c57d99a8fc42 by Ezio Melotti in branch '3.3':
#18803: fix more typos.  Patch by Févry Thibault.
http://hg.python.org/cpython/rev/c57d99a8fc42

New changeset 6b28bfff9204 by Ezio Melotti in branch 'default':
#18803: merge with 3.3.
http://hg.python.org/cpython/rev/6b28bfff9204

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nosy: +python-dev

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