The simple code that help you to estimate the computing time of the target function and get the same return value compare with origin function

function_time.py

def function_time(func, arg=()):
    '''
    The simple code that can estimate the computing time of the function and 
    return the same output of original one

    :param func: The reference of the function you may want to estimate time
    :param arg: The arguments of function, the default is ()
    :return: Return original output of the function
    '''
    t1 = timeit.default_timer()
    output = func(*arg)
    t2 = timeit.default_timer() - t1
    print('Time elasped of function {}: {} sec'.format(func.__name__, round(t2, 3)))
    return output