April 2023
Intermediate to advanced
769 pages
25h 16m
Chinese
Content preview from 流畅的Python（第2版）
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Python
并发模型
｜
567
《
Python
进阶：实际应用开发实战》（
Matthew Wilkes
著）是难得的一本好书，通过简短的
示例解释理论概念，还带领读者构建了一个具体应用程序，可在生产环境使用。这个程序
是一个数据聚合器，类似于
DevOps
监控系统或
IoT
分布式传感器的数据收集器
。这本书
中有两章涵盖
threading
和
asyncio
并发编程。
Parallel Programming with Python
（
Jan Palach
著）一书解读了并发和并行背后的核心概念，
涵盖
Python
标准库和
Celery
。
Using Asyncio in Python
（
Caleb
Hattingh
著）一书的第
2
章题为“
The Truth About Threads
”
（线程的真相）。
24
那一章谈论了线程的优缺点（引用了权威资料，令人信服），明确指出线
程的基本问题与
Python
或
GIL
没有任何关系
。以下内容摘自
Using Asyncio in Python
一书
的第
14
页。
我想强调的是：
•
使用线程的代码难以理解。
•
对于大规模并发操作（上千个并发任务），线程是一种低效模型。
如果你想自己探索（工作不能丢啊），了解线程和锁的理解难度，可以尝试
The Little Book
of Semaphores
（
Allen Downey
著）一书中的练习
。这本书中的练习，有的容易，有的非常
难，有的甚至无解；不过，即便是那些简单的题目也能让你大开眼界。
19.9.2
GIL
如果你对
GIL
感兴趣，请记住一点：我们在
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.