def func(i):
    print(i*i)
for i in range(1,50):
    func(i)

[code python]def doubler(number):
    """
    A function that can be used by a thread
    """
    print(threading.currentThread().getName() + '\n')
    print(number * 2)
    print()


if __name__ == '__main__':
    for i in range(30):
        my_thread = threading.Thread(target=doubler, args=(i,))
        my_thread.start()[/code]