[docs] [issue9921] os.path.join('x','') behavior

[R. David Murray]

R. David Murray <rdmurray at bitdance.com> added the comment:

Here is a patch that I think describes the algorithm correctly, based on the comments in the module, with a clarifying parenthetical to cover the non-obvious consequence of that algorithm.

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versions: +Python 3.3 -Python 3.1
Added file: http://bugs.python.org/file22426/os.path.join-doc.patch

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