python optimizations

guy.py

import time
import itertools
import hashlib

def regular_for_loop(bound):
    _md5 = hashlib.md5()
    for i in itertools.repeat("foo", bound):
        _md5.update(i)


def regular_for_loop_without_dot(bound):
    _md5 = hashlib.md5()
    update = _md5.update

    for i in itertools.repeat("foo", bound):
        update(i)

def using_imap(bound):
    _md5 = hashlib.md5()
    itertools.imap(_md5.update, itertools.repeat("foo", bound))

def using_imap_and_any(bound):
    _md5 = hashlib.md5()
    any(itertools.imap(_md5.update, itertools.repeat("foo", bound)))

def using_imap_and_any_without_dot(bound):
    _md5 = hashlib.md5()
    update = _md5.update
    any(itertools.imap(update, itertools.repeat("foo", bound)))

def test(f,bound,number_of_runs):
    total_time = 0
    for i in range(number_of_runs):
        total_time += single_time(f,bound)
    return (total_time, f.__name__)

def single_time(f,bound):
    time1 = time.time()
    f(bound)
    return time.time()-time1

bound = 10**5
tests = []
tests.append(test(regular_for_loop,bound,10))
tests.append(test(regular_for_loop_without_dot,bound,10))
tests.append(test(using_imap_and_any,bound,10))
tests.append(test(using_imap,bound,10))
tests.append(test(using_imap_and_any_without_dot,bound,10))

for time,name in sorted(tests):
    print time, "for", name