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This article will explain in detail about the operation of Semaphore in Python Library, the content of the article is of high quality, so the editor will share it with you for reference. I hope you will have a certain understanding of the relevant knowledge after reading this article.

Python Library is a commonly used computer language, and many people will come into contact with the computer language Semaphore in Python Library.

Python Library Semaphore, like the .NET Semaphore, limits the number of threads that can access a resource at the same time.

Lock = Semaphore (2) def test (): with lock: for i in range (5): print currentThread () .name, I sleep (1) for i in range (5): Thread (target = test) .start ()

Output:

$. / main.py

Thread-1 0

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