[Tutor] Filtering out unique list elements

[Corey Richardson]

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On 05/03/2011 06:20 PM, Spyros Charonis wrote:
> [cat, dog, cat, cat, cat, dog, dog, tree, tree, tree, bird, bird, woods,
> woods]
> 
> I am wondering how to truncate this list so that I only print out the unique
> elements, i.e. the same list but with one occurrence per element:
> 
> [cat, dog, tree, bird, woods]
> 
> Any help much appreciated!

The set type enforces uniqueness:
http://docs.python.org/library/stdtypes.html#set

You would use list(set(l)) to get the list from l where everything is
unique.
- -- 
Corey Richardson
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