16919ea5f2
Although this error isn't specific to extensions, extensions containing a blender_manifest.toml but no __init__.py would import a module with the __file__ set to None. While there is logic to handle this case, it didn't account for modules already in sys.modules with __file__ set to None. From a user perspective enabling the extension silently failed raising an error on the second attempt to enable.
Blender
Blender is the free and open source 3D creation suite. It supports the entirety of the 3D pipeline-modeling, rigging, animation, simulation, rendering, compositing, motion tracking and video editing.
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Blender as a whole is licensed under the GNU General Public License, Version 3. Individual files may have a different, but compatible license.
See blender.org/about/license for details.