A "for" with "list" question.

[Gerhard Häring]

* Mauro <mauro at mr-potatohead.com> [2002-08-31 14:30 -0700]:
> a = [0,1,2]
> b = [1,2,3]
> 
> 1° Print only -> 1 and 2
> Because the 1 and 2 are the only than appears in both lists.
> 
> 2° Print only -> 0 and 3
> This are the itens than are only in their lists.

Here's an example implementation:


a = [0,1,2]
b = [1,2,3]

print "items that are in both lists:"
for item in a:
    if item in b:
        print item

print
print "items that are not in both lists:"
both_lists = a + b
for item in both_lists:
    if (item not in a) or (item not in b):
        print item
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reduce(lambda x,y:x+y,map(lambda x:chr(ord(x)^42),tuple('zS^BED\nX_FOY\x0b')))