list1 = [1, 2, 4]
list2 = [4, 5, 6]
set_difference = set(list1) - set(list2)
list_difference = list(set_difference)
print(list_difference)
#result
[1,2]
def get_diff(a: list,b: list) -> list:
return list(set(a) ^ set(b))
s = set(temp2)
temp3 = [x for x in temp1 if x not in s]