from __future__ import print_function
import sys
import time

print("Results from", sys.version.partition("\n")[0], "\n")
print("  num    using  using")
print("  ops     '*'   'and'")
fmt = "%6d   %5.3f  %5.3f"

num_ops = 100

while num_ops < 100000:
    t1 = time.time()
    code = "def f(x):\n"
    code += "".join("  x * x\n"  for i in range(num_ops))
    compile(code, "<string_%d>" % num_ops, "exec")
    t2 = time.time()
    time_using_mult = t2-t1

    t1 = time.time()
    code = "def g(x):\n"
    # The same performance occurs with 'or' instead of 'and'
    code += "".join("  x and x\n"  for i in range(num_ops))

    compile(code, "<string_%d>" % num_ops, "exec")
    t2 = time.time()
    time_using_and = t2-t1

    print(fmt % (num_ops, time_using_mult, time_using_and))

    num_ops *= 2