Dropkick Punt wrote: >>>> prefixes = [ "the", "this", "that", "da", "d", "is", "are", "r", "you", >>>> "u"] > > And I have a string, that I split() into a list. > >>>> sentence = "what the blazes is this" >>>> sentence = sentence.split() > > Now I want to strip the sentence of all words in the prefix list. > > I tried this method: > >>>> for x in prefixes: > ... if sentence.index(x): > ... del sentence[sentence.index(x)] > > > This raises, the error: > > Traceback (most recent call last): > File "<stdin>", line 3, in ? > ValueError: list.index(x): x not in list > > This puzzles me, because if x isn't in the list, the subroutine shouldn't > attempt to delete it > from the list, so I'm not sure why it's complaining.
list.index raised ValueError, see error message. > Can anybody explain this to me, &/or show me a better way to do it? prefixes = set(prefixes) sentence = [word for word in sentence.split() if word not in prefixes] w. -- http://mail.python.org/mailman/listinfo/python-list
