import time
import math
def timeit1():
s = time.time()
for i in xrange(750000):
z=i**.5
print "Took %f seconds" % (time.time() - s)
def timeit2(arg=math.sqrt):
s = time.time()
for i in xrange(750000):
z=arg(i)
print "Took %f seconds" % (time.time() - s)
timeit1()
timeit2()