Python Hal Components

I have a pyqt based GUI, that calls various other scripts programmers have written most of which have their own HAL components.

The issue is they all get the same python process ID so if I close one, I close them all. Is there a way to call them in a separate process through python? Sometimes the other scripts fail and I want to be able to call them again, but their component still exists so I have to unload the component, which kills the process, which kills the gui?

How do you open them?

I've tried Popen[python, halcomp.py], and hal.component('Component2').

The current method is Popen, which is nice that it gives a seperate window to distinguish the debugging commands

If the script fails with a component that starts bit doesn't finish initializing I can see that as a problem that is hard to back out of, but if the component issued hal.ready() then you should be able to unload it with HAL commands.

Can you post a small minimal sample program that shows the issue?

Chris

Apparently I wasn't getting reply notifications. Our solution ended up being, call the beta hal component with Popen. Then in the python side catching exceptions and sending the sigterm to its own process and seems to allow us to not kill the main linuxcnc process.