On May 2, 10:13 pm, Ross <ross.j...@gmail.com> wrote: > I'm trying to set up a simple filter using a list comprehension. If I > have a list of tuples, a = [(1,2), (3,4), (5,None), (6,7), (8, None)] > and I wanted to filter out all tuples containing None, I would like to > get the new list b = [(1,2), (3,4),(6,7)].
try this: b = [i for i in a if None not in i] > I tried b = [i for i in a if t for t in i is not None] but I get the > error that "t is not defined". What am I doing wrong? You've got a "for" and an "if" backwards. t isn't defined when the if tries to evaluate it. -- http://mail.python.org/mailman/listinfo/python-list
