mayapy missing PYTHONPATH

[Brennan Chapman]

I’m having some trouble with mayapy not loading the PYTHONPATH.
When using Maya’s GUI, the PYTHONPATH is set when a maya module file is loaded.
By default, if a module path contains a folder titled ‘scripts’, it will be added to the PYTHONPATH.

However, this is not the case when using mayapy. I’ve tried this on mac, windows and linux.
I’m facing problems with arnold not being able to load properly because the PYTHONPATH doesn’t not contain arnolds ‘scripts’ folder.
I know I can manually set the PYTHONPATH, but I'm hoping there is a simple solution that would allow maya to automatically populate it just as it does when loading the GUI.
Any ideas?

Thanks,
Brennan

[Paul Molodowitch]

The startup process for GUI + mayapy differs slightly, unfortunately - offhand, I can't remember if the handling of modules + PYTHONPATH is one of them, but I'll take your word for it.  I know that pymel makes an effort to keep the startup process in mayapy as similar as possible to GUI maya, so you can try doing this, to start maya:

import pymel.core as pm

...instead of the "standard":

import maya.standalone
maya.standalone.initialize()

If pymel finds that maya hasn't been started when pymel.core is being imported, it will automatically run standalone.initialize(), but will do so in a way that more closely mirrors the way that GUI startup works.  Note that this will only work if you haven't already started / initialized maya.  Give it a shot (even if you don't intend to use pymel itself)...

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