My menugen code is able to rebuild the menu.
However, when it tries to use RegisterCommandPlugin() for the new python scripts it finds on disk, C4D issues an error indicating it can't find a .pyp file. Apparently this is because RegisterCommandPlugin() can't be used at any time except at application launch. And without the ability to RegisterCommandPlugin() for the new scripts, I can't add them to the newly built menu as menu items.
At our facility we have PySide2 installed for python 3.9, which of course includes the shiboken2 package. However, for some reason it fails to load in either c4dpy.exe or the python console (in the C4D application). It loads just fine in the python.exe that ships with C4D R24.
ImportError: DLL load failed while importing shiboken2: The specified module could not be found.
Why might this be happening and how can we fix this? Our pipeline tools are all PySide/PySide2 based and they work without problems inside older versions of C4D such as R18, R19, R20, R21.
(And yes, the location of shiboken2 is in sys.path, as evidenced by the fact that other modules at the same level as shiboken2 import without problems.)