duplicates.py

mylist = [1,2,3,3,4,'John', 'Ana', 'Mark', 'John']

#Method 1
def remove_duplicate(list_value):
    return list(set(list_value))

print(remove_duplicate(mylist))

#Method 2
result = []
[result.append(x) for x in mylist if x not in result]

print(result)