Having been in touch with the Autodesk devs directly, I no longer use *any *Python-base scripted-plugin-based *nodes *since Maya 2015 (Maya 2016 introduced the multithreaded evaluation graph): Per discussion above, from 2016-on, they've confirmed (and I've seen first hand) they drop the evaluation graph back to a single thread during evaluation (which you can confirm for yourself by profiling the evaluation of your rig), based on Python's GIL : I still make scripted plugin based *commands*, they're fine. But if you want a performant plugin-based *node*, you needs to be making it via the c++'s.
BTW, this makes me personally sad since I love Python, but I completely understand the reason behind it: Python as Maya implements it simply isn't multithreaded. -- You received this message because you are subscribed to the Google Groups "Python Programming for Autodesk Maya" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/python_inside_maya/ce992caf-1964-4e7d-a96d-b126c8e5a923%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
