verifica

T = [[0,2],[0,1],[1,2]]

def verifica(T):
    l1 = []
    l2 = []
    for el in T:
        l1.append(el[0])
        l2.append(el[1])
        if el[0] in l1 and el[0] in l2:
            print(l1)
            print(l2)
            return False


        if el[1] in l1 and el[1] in l2:
            print(l1)
            print(l2)
            return False


    print(l1)
    print(l2)
    return True


print(verifica(T))