chrono.py

# This program will demonstrate how we can use python decorators
# to measure the time of function invoking

import time


def chrono(fn):
    def wrapper(*args):
        start = time.time() # get current time before running the function
        
        result = fn(*args) # invoking function
        
        duration = time.time() - start # measuring the duration
        
        print(f'The total time for function invoking is {duration} seconds')

        return result
    return wrapper


@chrono
def run(timeout=5):
    print(f'Invoking function run with timeout {timeout} second')
    time.sleep(timeout)


def main():
    run()


if __name__ == '__main__':
    main()