All unique or not

The following method checks whether the given list has duplicate elements. It uses the property of set() which removes duplicate elements from the list.

Python: 3.0 Fatos Morina 03 Jul 2021 0

def all_unique(lst):
    return len(lst) == len(set(lst))


x = [1,1,2,2,3,2,3,4,5,6]
y = [1,2,3,4,5]
all_unique(x) # False
all_unique(y) # True

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