MotionBuilder is packaged with both Python 3 and Python 2 interpreters.
MotionBuilder starts in Python 3 mode by default, but can be switched to Python 2 mode either by using the -pythonver 2 option when starting MotionBuilder from the command line, or by setting the MOTIONBUILDER_PYTHON_VERSION environment variable to 2.
| Platform | Command | Environment variable |
|---|---|---|
| Windows |
motionbuilder.exe -pythonver 2 |
> set MOTIONBUILDER_PYTHON_VERSION=2 > motionbuilder.exe |
| Linux |
motionbuilder -pythonver 2 |
$ export MOTIONBUILDER_PYTHON_VERSION=2 $ motionbuilder |