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Date: Sat, 9 Feb 2013 22:21:47 +1100
Subject: Re: string.replace doesn't removes ":"
From: Chris Angelico <rosuav@gmail.com>
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On Sat, Feb 9, 2013 at 10:04 PM, Joshua Robinson
<shooki.robinson@gmail.com> wrote:
> Hi Monte-Pythons,
>
> x = "this is a simple : text: that has colon"
> s = x.replace(string.punctuation, "");  OR
> s = x.replace(string.punctuation, "");
> print x   # 'this is a simple : text: that has colon'
> # The colon is still in the text !!!!
>
> Is this a bug or am I doing something wrong ?

str.replace() replaces whole strings, not the individual characters.
You probably want str.translate():

s = x.translate(string.maketrans("",""),string.punctuation)

You'll then want to print s, rather than x, to see the difference.

Note that it's a little different in Python 3, and you would instead use:
s = x.translate(str.maketrans("","",string.punctuation))

ChrisA