a simple profiler for python

timer.py

# source: http://www.huyng.com/posts/python-performance-analysis/
import time

class Timer(object):
    def __init__(self, verbose=False):
        self.verbose = verbose

    def __enter__(self):
        self.start = time.time()
        return self

    def __exit__(self, *args):
        self.end = time.time()
        self.secs = self.end - self.start
        self.msecs = self.secs * 1000  # millisecs
        if self.verbose:
            print 'elapsed time: %f ms' % self.msecs


# Usage:
with Timer() as t:
    print "Hello World"
print t.msecs