Remove all the elements that occur in one list from another

Question

Let\'s say I have two lists, l1 and l2. I want to perform l1 - l2, which returns all elements of l1 not in l2

Answer 1

Alternate Solution :

reduce(lambda x,y : filter(lambda z: z!=y,x) ,[2,3,5,8],[1,2,6,8])