calculate time python

import time
start = time.process_time()
# your code here    
print(time.process_time() - start)

import timeit

code = """[4, 2, 3, 1, 5].sort()"""

execution_time = timeit.timeit(code, number=1)

print(execution_time)

>>> import datetime
>>> a = datetime.datetime.now()
>>> # ...wait a while...
>>> b = datetime.datetime.now()
>>> print(b-a)
0:03:43.984000