如何从Python线程退出整个应用程序? [英] How to exit the entire application from a Python thread?

问题描述

如何从其线程之一退出整个Python应用程序? sys.exit()仅终止调用它的线程，因此无济于事.

How can I exit my entire Python application from one of its threads? sys.exit() only terminates the thread in which it is called, so that is no help.

我不想使用os.kill()解决方案，因为它不是很干净.

I would not like to use an os.kill() solution, as this isn't very clean.

推荐答案

如果除主线程之外的所有线程都是守护程序，则最好的方法通常是

If all your threads except the main ones are daemons, the best approach is generally thread.interrupt_main() -- any thread can use it to raise a KeyboardInterrupt in the main thread, which can normally lead to reasonably clean exit from the main thread (including finalizers in the main thread getting called, etc).

当然，如果这导致某些非守护进程线程使整个过程保持活动状态，则您需要按照Mark的建议继续使用os._exit，但是我认为这是最后的手段(有点像kill -9 ;-)，因为它相当残酷地终止了事情(终结器未运行，包括try/finally块，with块，atexit函数等).

Of course, if this results in some non-daemon thread keeping the whole process alive, you need to followup with os._exit as Mark recommends -- but I'd see that as the last resort (kind of like a kill -9;-) because it terminates things quite brusquely (finalizers not run, including try/finally blocks, with blocks, atexit functions, etc).

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