[timer decorator] Decorator that measure and print execution time #decorator #timer #elapsed-time

timer_decorator.py

"""
Usage example:

@timer_decorator
def sum_list(numbers):
    return sum(numbers)

numbers = list(range(1, 1000000))  # Create a list of numbers from 1 to 999999
result = sum_list(numbers)
print(f"Sum: {result}")
"""
def timer_decorator(func):
    @wraps(func)
    def wrapper(*args, **kwargs):
        start_time = time.time()
        result = func(*args, **kwargs)
        elapsed_time = time.time() - start_time
        print(f"{func.__name__} took {elapsed_time:.2f} seconds to execute.")
        return result
    return wrapper