Python datasource refresh via service

Hi,

The ability to schedule a refresh of python script as a data source should be available as stated here: https://ideas.powerbi.com/forums/265200-power-bi-ideas/suggestions/35207536-python-on-scheduled-refresh

But I've been unable to do so. When I try to refresh python script as a data source, I get this error:

"Extension{"extensionDataSourceKind":"Python", "extenstionDataSourcePath":"Python"} / "Cannot be added to gateway".

Has anybody encountered this kind of problem? Is the feature available and I've messed something up or is it still not finished?

Thanks for any help

Pavel Klammert