Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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link - https://docs.python.org/3/library/time.html for time module

Code - 

def long_running_task(n):
   num = 0
   for x in range(n):
       for y in range(n):
           for z in range(n):
                num += x + y + z
return num


print(long_running_task(500))
Write a Python decorator function that accepts any function as input, starts a timer, calls the function with a single
argument, and then ends the timer and prints out how long the function took to run. Use the Python time module
to time the accepted function. Decorate the long_running_task function using the Python decorator syntax and
print the results.
$ python main.py
fn took 13.040512561798096s to run
93562500000
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Transcribed Image Text:Write a Python decorator function that accepts any function as input, starts a timer, calls the function with a single argument, and then ends the timer and prints out how long the function took to run. Use the Python time module to time the accepted function. Decorate the long_running_task function using the Python decorator syntax and print the results. $ python main.py fn took 13.040512561798096s to run 93562500000
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