How to know if a list has an even or odd number of elements

Question

How can I find out if there is even, or odd, number of elements in an arbitrary list.

I tried list.index() to get all of the indices... but I still don\'t k

Answer 1

def has_even_length(some_sequence):
    return not len(some_sequence)%2

def has_odd_length(some_sequence):
    return bool(len(some_sequence)%2)