Removing duplicates in lists?

Question

Pretty much I need to write a program to check if a list has any duplicates and if it does it removes them and returns a new list with the items that werent duplicated/removed. This is what I have but to be honest I do not know what to do. def remove_duplicates(): t = ['a', 'b', 'c', 'd'] t2 = ['a', 'c', 'd'] for t in t2: t.append(t.remove()) return t

Answer 1

The easiest way is to convert it to a dictionary and back. This works because a dictionary cannot have duplicate keys. Just takes one line of code.

your_list = list(dict.fromkeys(your_list))