My company has been using the FileMaker Data API with Python since it was announced last year. It was first used to automatically import and update user data from another database, then we created a script that could feed our Digital Signage with data from FileMaker, and I have even combined it with the Flask framework of Python to create simple web-apps that can replace WebDirect in certain cases.
With the release of FileMaker 17, I've updated the helper library that we've been using and generalized it to be compatible with any FileMaker Server running version 17. You can check it out on GitHub or install using pip:
pip install fmrest
Hopefully, others will find it as useful as I have!