>> Alternatively, you could put the results as keys in a dictionary,
>> then request
>> mydict.keys() to get a list of unique outcomes.
>
> I thought of that too, but couldn't think how to do it in a list
> comprehension. It seemed like it should be possible but I
> couldn't think of how - and didn't have a python interpreter
> handy...
I wouldn't do it in a list comprehension - I took a bit of liberty with
the topic and looked more at the actual problem :). Of course the loop
can be turned into a list comprehension, but it serves no purpose
whatsoever:
>>> d = {}
>>> [d.__setitem__(s, '') for s in myiterator]
By the way, the fromkeys method of the dict type can turn this into a
oneliner:
>>> mylist = [1,2,3,1,2,4] # may also be some iterator
>>> print dict.fromkeys(mylist).keys()
... [1,2,3,4]
The set solution is the Most Obvious Way to do it, but the dict one
doesn't require an understanding of list comprehensions.
--
Yours,
Andrei
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