Translations:Std AddonMgr/61/en

If you plan on your code running in a GUI, or supporting running in the full version of FreeCAD, it's best to run your installation in a separate non-GUI thread, so the GUI remains responsive. To do this, first check to see if the GUI is running, and if it is, spawn a (don't try to spawn a  if the GUI is not up: they require an active event loop to function).