[docs] [issue10225] Fix doctest runable examples in python manual

[Raymond Hettinger]

Raymond Hettinger <rhettinger at users.sourceforge.net> added the comment:

Terry, I'm unhappy with the changes to the sorting how-to.  IMO, it was a not a net win (transforming code that already ran fine in something doctest would swallow).  The code snippets now have the visual clutter of the ">>>" and "..." PS1 and PS2 prompts and they can no longer be readily cut and pasted into the interpreter so that people can experiment with them.

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nosy: +rhettinger

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue10225>
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