Python implements simple timer functions

This article mainly introduces how to implement simple timer functions in python, which involves the skills of Python operation time and has some reference value, for more information about how to implement simple timer functions in python, see the following example. Share it with you for your reference. The details are as follows:

This function implements a simple timer kinetic energy through python:

''' Simple Timing Function.This function prints out a message with the elapsed time from theprevious call. It works with most Python 2.x platforms. The functionuses a simple trick to store a persistent variable (clock) withoutusing a global variable.'''import timedef dur( op=None, clock=[time.time()] ):  if op != None:    duration = time.time() - clock[0]    print '%s finished. Duration %.6f seconds.' % (op, duration)  clock[0] = time.time()# Exampleif __name__ == '__main__':  import array  dur()  # Initialise the timing clock  opt1 = array.array('H')  for i in range(1000):    for n in range(1000):      opt1.append(n)  dur('Array from append')  opt2 = array.array('H')  seq = range(1000)  for i in range(1000):    opt2.extend(seq)  dur('Array from list extend')  opt3 = array.array('H')  seq = array.array('H', range(1000))  for i in range(1000):    opt3.extend(seq)  dur('Array from array extend')# Output:# Array from append finished. Duration 0.175320 seconds.# Array from list extend finished. Duration 0.068974 seconds.# Array from array extend finished. Duration 0.001394 seconds.

I hope this article will help you with Python programming.