Sample code for timeit module. Tarai and factorial functions.

test_timeit.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-

def tarai(x, y, z):
    return tarai(tarai(x - 1, y, z),
                 tarai(y - 1, z, x),
                 tarai(z - 1, x, y)) if x > y else y

def factorial(n):
    return n == 0 and 1 or reduce(lambda x, y: x * y, range(1, n + 1))

def main():
    print tarai(12, 6, 0) # Tarai(12, 6, 0)
    print factorial(10)   # 10!

if __name__ == "__main__": main()