[ python-Feature Requests-1184678 ] "replace" function should accept lists.

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Feature Requests item #1184678, was opened at 2005-04-17 19:05
Message generated for change (Comment added) made by poromenos
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Poromenos (poromenos)
Assigned to: Nobody/Anonymous (nobody)
Summary: "replace" function should accept lists.

Initial Comment:
It would be nice if the "replace" function accepted lists/
tuples and replaced each item in the "old" list with the 
corresponding item in the "new" list.

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>Comment By: Poromenos (poromenos)
Date: 2005-04-19 00:15

Message:
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Hmm, actually I was requesting that string.replace() accepted 
lists of substitutions, like so:
>>> "Hello world".replace(["e", "d"], ["a", "e"])
'Hallo worle'

But your suggestion would also be very useful.

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Comment By: Raymond Hettinger (rhettinger)
Date: 2005-04-19 00:11

Message:
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user_id=80475

Are you requesting that lists be given a replace() method
that parallels the replace() method for strings?

def replace(self, old, new):
    result = []
    for elem in self:
        if elem == old:
            result.append(new)
        else:
            result.append(elem)
    self[:] = result

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