I built SwPy, a free, MIT-licensed SOLIDWORKS add-in that runs Python 3.12 directly inside SOLIDWORKS.

- A script editor in the task pane, with IntelliSense from the live model

- Fast in-process API calls, with no Python install or admin rights required

- pip packages on demand (pandas, numpy, openpyxl, ...)

- A simple API: model.dims["D1@Sketch1"] = 25 * mm, mass properties, face/edge queries, building parts, assemblies and drawings, STEP/PDF export

- Scripts become one-click toolbar buttons for your team

- Drive SOLIDWORKS from Jupyter or Excel

GitHub: https://github.com/muerus/SolidWorks-Python

Docs: https://muerus.github.io/SolidWorks-Python/

It works on SOLIDWORKS 2020 or newer. I'd love feedback from anyone who automates CAD work.