ex_list = [ 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'a', 'b', 'c', 'd' ] 

ex_list = list(set(ex_list))

print ex_list




226a323af0ec6de4944a5a50949cc7ac44da9dad
ex_list = [ 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'a', 'b', 'c', 'd' ] 

ex_list = list(set(ex_list))

print ex_list



