How can I filter items from a list in Python?

Question

I have data naively collected from package dependency lists.

Depends: foo bar baz >= 5.2

I end up with

 d = set([\'foo\',\'bar\',\'baz\',\'         


        

Answer 1

How about

d = set([item for item in d if re.match("^[a-zA-Z]+$",item)])

that gives you just the values you want, back in d (the order may be different, but that's the price you pay for using sets.