lightweight class for timing python code

code-timer-class.py

#!/usr/local/bin/python2.7
# encoding: utf-8
 
import time
from timeit import default_timer
 
class Timer(object):
 
    def __init__(self, verbose=True):
        self.verbose = verbose
        self.timer = default_timer
 
    def __enter__(self):
        self.start = self.timer()
        return self
 
    def __exit__(self, *args):
        end = self.timer()
        self.elapsed_secs = end - self.start
        self.elapsed = self.elapsed_secs * 1000
        if self.verbose:
            print("elapsed time: {0:3f} milliseconds".format(self.elapsed))
 
 
if __name__ == '__main__':
        import numpy as NP
        from scipy import linalg as LA
        with Timer() as t:
            # code block that you wish to measure execution speed
            A = NP.random.randn(100*100).reshape(100, 100)
            eve, eva = LA.eig(A)
 
"elapsed time: {0:2f} milliseconds".format(t.elapsed)