On 18 Mar, 22:25, sturlamolden <[EMAIL PROTECTED]> wrote:
> def nonunique(lst):
> slst = sorted(lst)
> return list(set([s[0] for s in
> filter(lambda t : t[0] != t[1], zip(slst[:-1],slst[1:]))]))
Obviously that should be 'lambda t : t[0] == t[1]'. Instead of using
the set function, there is more structure to exploit when the list is
sorted:
def nonunique(lst):
slst = sorted(lst)
dups = [s[0] for s in
filter(lambda t : t[0] == t[1], zip(slst[:-1],slst[1:]))]
return [dups[0]] + [s[1] for s in
filter(lambda t : t[0] != t[1], zip(dups[:-1],dups[1:]))]
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