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Groups > comp.lang.python > #43677

Re: a couple of things I don't understand wrt lists

References <20130416153701.GA18377@gmail.com>
Date 2013-04-17 01:43 +1000
Subject Re: a couple of things I don't understand wrt lists
From Chris Angelico <rosuav@gmail.com>
Newsgroups comp.lang.python
Message-ID <mailman.669.1366126994.3114.python-list@python.org> (permalink)

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On Wed, Apr 17, 2013 at 1:37 AM, aaB <mecagonoisician@gmail.com> wrote:
> but when I do:
>
> for i in rule:
>   print rule[i]

When you iterate over rule, you don't iterate over the indices, but
over the values themselves. Try this:

for i in rule:
    print i

Incidentally, "for i in range(rule)" isn't actually going to work;
what you would have used is "for i in range(len(rule))". Be careful
with that sort of thing; it's usually safest to actually copy and
paste from an interactive session, rather than reconstruct manually.
Sometimes it's not obvious whether it was a copy/paste problem or the
cause of your underlying confusion.

ChrisA

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Re: a couple of things I don't understand wrt lists Chris Angelico <rosuav@gmail.com> - 2013-04-17 01:43 +1000

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