How to use - TheAndyRoid/obs-python GitHub Wiki

Once installed you should be able to create a obs source called "PythonManager" if you are not able to create the source, take a look at the obs logs and check that the python plugin was loaded successfully.

Once you have created the PythonManager source which really is not a source, just a way to add your own actual python scripts.

use https://github.com/TheAndyRoid/obs-python-scripts/blob/master/ColourSquare.py as an example script

Add your script to the list of PythonScriptFiles. It should then be available as a source in obs.

It should be noted that python stdout and stderr will be redirected to stdOut.txt and stdErr.txt in the obs bin directory. Check these if you have issues with your scripts.