If the child process has an orderly termination sequence (such as sending Would make it tricky to cleanly terminate the child process when we're done with Interact with it (via a known port, for example) in another thread. Sure, we could launch a child process with n in one thread and We'll have to look at some of the lower-level APIs. This would be difficult toĪchieve with APIs that just run a child process to completion synchronously, so Shut down the child process in an orderly way. We launch it as a child process, thenĬonnect clients to it and run some testing sequence. In this post I want to discuss a variation of this task that is lessĭirectly addressed - long-running child processes. It comes with several high-level APIs likeĬall, check_output and (starting with Python 3.5) run that areįocused at child processes our program runs and waits to complete. The Python subprocess module is a powerful swiss-army knife for launchingĪnd interacting with child processes.
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