Good news for you. Design Automation for Fusion now allows you to execute your Fusion scripts now. It's not quite python, but typescript. But the API is the same with almost all of Fusions functionality.

Here are some resources that might be interesting for you.

Official announcement as an overview:

https://aps.autodesk.com/blog/design-automation-fusion-open-beta

Tutorial on how to get started:

https://aps.autodesk.com/blog/get-started-design-automation-fusion

Detailed documentation about Design Automation for Fusion:

https://aps.autodesk.com/en/docs/design-automation/v3/tutorials/fusion/