[issue10225] Fix doctest runable examples in python manual

[Raymond Hettinger]

Raymond Hettinger <raymond.hettinger at gmail.com> added the comment:

These are fine except for the changes to collections.py.  Please leave the deployed code for named tuple as-is.  Doctest may have issues with trailing whitespace, but that is doctest's problem, not named tuple's.

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assignee: rhettinger -> belopolsky
resolution:  -> accepted
versions: +Python 3.3

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<http://bugs.python.org/issue10225>
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