product.py

#Got this on my first try!
#Define a function called product that
# takes a list of integers as input and returns the product
# of all of the elements in the list.
# For example: product([4, 5, 5]) should return 100 (because 4 * 5 * 5 is 100).

def product(x):
    num = 1
    for i in x:
        num *= i
    return num

print product([4,5,4])