elasped time.py

from contextlib import contextmanager
from timeit import default_timer
import time
@contextmanager
def elapsed_timer():
    start = default_timer()
    elapser = lambda: default_timer() - start
    yield lambda: elapser()
    end = default_timer()
    elapser = lambda: end-start


with elapsed_timer() as elapsed:
    for i in range(10):
    	# CODE HERE
    	pass
    	
    print("{:.8f}".format(float(elapsed())))