On Dec 16, 4:15 am, "Gabriel Genellina" <gagsl-...@yahoo.com.ar> wrote: > En Tue, 16 Dec 2008 07:29:19 -0200, Aaron Brady <castiro...@gmail.com> > escribió: > > > I have a file handle I want to inherit in a child process. I am > > looking at '_make_inheritable' in 'Popen', but it needs an instance, > > and by the time I have one, the subprocess is already running. > > > Can't I call 'Popen._make_inheritable( None, handle )'? The method > > does not use 'self'. > > File handles are inherited by default, I think. What's your specific > problem? > > -- > Gabriel Genellina
I want a dual-console application for some multi-threaded output. The main process spawns a second process in a second window, and directs its readout through a pipe. That is, the second process is just a dummy, print pipe directly to console. It worked when I used the 'stdin= PIPE' keyword in Popen, but passing my own pipe handle on the command line isn't working. The keyword is a workaround. > File handles are inherited by default, I think. I thought so too. The web seems to say that on Linux they are, and on Windows, you need to call DuplicateHandle for it. By the way, there are a few solutions to the inheritance problem. 1. Override __init__ and __del__ in a subclass. 2. Assign DummyClass= Popen._make_inheritable 3. Override Popen._execute_child to call _make_inheritable, then call the super method. -- http://mail.python.org/mailman/listinfo/python-list
