Permutation in python

Question

I have an assignment to submit today itself and tried to answer it like below but i got that the answer was incorrect . Whats wrong

def is_even(p):
result=(len(p)-1)%2
if result:
return False
else:
return True

Answer 1

Please more elaborate on your question.

Answer 2

Sorry i forgot to mention the question. Write a function is_even(p) that return true for even permutation and false for odd permutations. And first line should be def is_even(p):