python test how long a function takes code example

Example 1: how to time a python script

from datetime import datetime
start = datetime.now()
# some kind of code
print(datetime.now() - start)

Example 2: python: measure time code

import time

# Calculate the power of two for a defined range of number
def power_two(my_range):
    return [x**2 for x in range(my_range)]
 
# Measure time
def measure_time(func):
    start = time.time()
    func()               # any specific function to measure
    end = time.time()
    print(end - start)  
    
measure_time(lambda: power_two(10000000)) # lambda permits to pass the argument of our function