[docs] [issue30826] More details in reference 'Looping through a list in Python and modifying it'

[Raymond Hettinger]

Raymond Hettinger added the comment:

The example would be more clear if we replaced the opaque idiom "words[:]" with the more explicit alternative "words.copy()".

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assignee: docs at python -> rhettinger
nosy: +rhettinger

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<http://bugs.python.org/issue30826>
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