Python Execution Timer with Decorator

Ref: https://www.geeksforgeeks.org/timing-functions-with-decorators-python/

from time import time
  
def timer(func):
    # This function shows the execution time of 
    # the function object passed
    def wrap_func(*args, **kwargs):
        t1 = time()
        result = func(*args, **kwargs)
        t2 = time()
        print(f'Function {func.__name__!r} executed in {(t2-t1):.4f}s')
        return result
    return wrap_func
  
  
@timer
def long_time(n):
    for i in range(n):
        for j in range(100000):
            i*j
  
long_time(5)

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