Programming with python language.
>>> my_list = [1,2,3,22,33,11,33,'a','b','c','a']
>>> my_list = list(set(my_list))
>>> print my_list
['a', 1, 2, 3, 33, 11, 'c', 'b', 22]
It's bad solution in case if order of elements is critical.
can solve fast when is need it , also python let you to use any solution ...