simple python timer

timer.py

import time

class Timer:
  def __enter__(self):
    self.start = time.clock()
    return self
    
  def __exit__(self,*args):
    self.end = time.clock()
    self.interval = self.end - self.start
    
# usage
if __name__ == '__main__':
  with Timer() as t:
    # do stuff
    
  print('Stuff took %f seconds' % t.interval)