In Python, a SyntaxError happens when the interpreter finds code that does not conform to the rules of the Python language.

To fix excel autosave not working issues, you can use Open and Repair option to repair the file, resave the temp files, disable addins & more ...

According to the documentation it seems that you need to request a sandboxed container to run python code, which you don’t seem to have done here. Maybe the docs are out of date?