"""Example showing how functions that return a boolean value
can be written very concisely"""

def is_divisible(x, y) :
    """determines if x is divisible by y"""
    if x % y == 0:
        return True
    else:
        return False

# a more concise way of writing this function:

def is_divisible_concise(x, y) :
    """determines if x is divisible by y"""
    return x % y == 0: