On 02/05/2013 02:20 PM, maiden129 wrote:
On Tuesday, February 5, 2013 1:56:55 PM UTC-5, marduk wrote:
On Tue, Feb 5, 2013, at 01:38 PM, maiden129 wrote:
<Snipping double-spaced googlegroups trash>
when I removed "s.remove(i), it starts to repeat the number of occurrences too
many times like this:
2 occurs 3 times.
2 occurs 3 times.
3 occurs 3 times.
3 occurs 3 times.
2 occurs 3 times.
2 occurs 3 times.
5 occurs 1 time.
3 occurs 3 times.
3 occurs 3 times.
4 occurs 1 time.
3 occurs 3 times.
3 occurs 3 times.
1 occurs 1 time.
2 occurs 3 times.
2 occurs 3 times.
How can I stop this?
As MRAB pointed out, don't delete items from a list you're iterating
over. It can make the iterator go nuts. He suggests the collections
module.
But if you want to do it by hand, one approach is to reverse the two
loops. Iterate over the characters in CheckS list, examining the entire
s list for each one and figuring out how many times the character occurs.
Another approach is to build a dict, or a defaultdict, to keep counts
for each of the characters in CheckS.
--
DaveA
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