[Baypiggies] list question

Hasan Diwan hasan.diwan at gmail.com
Wed Apr 6 05:02:22 CEST 2011

On 6 April 2011 04:49, Vikram K <kpguy1975 at gmail.com> wrote:

> i have this list:
> x = ['cat','dog','dog']
> i wish to identify the non-unique element in this list i.e. 'dog'. how do i
> do this?

> i did this:
> >>> y = list(set(x))
> >>> y
> ['dog', 'cat']
You are on the right track here. However, I would build a list and check for
membership in it right after, e.g.:
for animal in x:
   if animal not in unique: unique.append(animal(
   else: print animal

for your list ['cat', 'dog', 'dog'] the above snippet gives 'dog'
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