add execution time in python code example

Example 1: python time execution

import time
start_time = time.time()
print("Hello") 	# Hello
end_time = time.time()
total_time = end_time - start_time
print("Time: ", total_time)

Example 2: python - time of execution

import time
from datetime import timedelta

start_time = time.monotonic()
# do your work here
end_time = time.monotonic()
print(timedelta(seconds=end_time - start_time))