[docs] [issue22702] to improve documentation for join() (str method)

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

Current documentation looks good to me and not needing changes (except fixing the doubled "iterable"). Proposed change looks incorrect to me. No parameter named "str" is provided in this method.

See also the docstring of str.join.

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nosy: +serhiy.storchaka

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue22702>
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