Hi @Felix_
the motion python library, which is described in the documentation you linked is not part of the SDK. The reason is, in the SDK you can see how to create a own app. The python library you mentioned works against the script interface of the Motion App. To use this script interface (with the python library) you need the Python Runtime App. In this case you will not need to program your own app and can just bring your script to the ctrlX CORE and run it with the help of the Python Runtime App.
In addition the IDE App can be used to create Python scripts in a web-based development environment directly on the ctrX CORE. On how to do that I can recommend to look at the How To @CodeShepherd shared.
Best regards,
Nick
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