Eryk Sun <eryk...@gmail.com> added the comment:
For a console application, normally the system connects to either the console that's inherited from the parent or, if no console is inherited, a newly allocated console. The creation flag DETACHED_PROCESS sets the initial console handle in the child to a special value that tells the system to skip connecting to a console. If the child process doesn't subsequently call AllocConsole, AttachConsole, or create a visible top-level window, then it will considered to be background process. Note that 'detached' in this case doesn't mean detached from the parent process. There's no such attachment to begin with because Windows does not maintain a process tree. It uses a nested job-object hierarchy as the equivalent of a Unix process tree. The creation flag CREATE_BREAKAWAY_FROM_JOB breaks away from jobs that allow it. The Popen warning is a tool to help programmers become aware of leaked child processes. I do think there should be a documented way to disable this warning for a child process. However, this is unrelated to the DETACHED_PROCESS flag. ---------- nosy: +eryksun _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue38890> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
