SimpleTimer

#  powerset goes up here

def runtimer():
    global my_set
    for i in [0] * 100000:
        list(powerset(my_set))

import timeit
global my_set
my_set = [1, 2, 3]

if __name__ == '__main__':
    time_taken =  timeit.timeit(runtimer, number=1)
    print 'Time =', time_taken
    print list(powerset(my_set))