import re import time def main(): s = "\13hello\14 \13world\14 " * 1000 p = re.compile(r"([\13\14])") timefunc(10, p.sub, "", s) timefunc(10, p.split, s) timefunc(10, p.findall, s) def timefunc(n, func, *args, **kw): t0 = time.clock() try: for i in range(n): result = func(*args, **kw) return result finally: t1 = time.clock() if n > 1: print n, "times", print func.__name__, "%.3f" % (t1-t0), "CPU seconds" main()