Mutual Recursion Example

mutual_recursion_is_even_is_odd.py

# Sources:
# http://www.idc-online.com/technical_references/pdfs/information_technology/Mutual_Recursion_in_Python.pdf
# https://library.oapen.org/handle/20.500.12657/26092

def is_even(n):
    if n == 0:
        return True
    else:
        return is_odd(n-1)

def is_odd(n):
    if n == 0:
        return False
    else:
        return is_even(n-1)