Have you worked with STEP format files in your projects?

STEP (.step or .stp) files are used for exchanging 3D models and CAD data between different systems. In Python projects, I have worked with such files using libraries for parsing and processing CAD data, such as pythonOCC or pythreejs for visualization.

Example: with pythonOCC, you can load a STEP file and access the model's geometry for further processing or analysis.

from OCC.Core.STEPControl import STEPControl_Reader
from OCC.Core.IFSelect import IFSelect_RetDone

reader = STEPControl_Reader()
status = reader.ReadFile('model.step')
if status == IFSelect_RetDone:
    reader.TransferRoots()
    shape = reader.OneShape()
    # You can then work with the shape object

Thus, working with STEP files allows integrating CAD data into Python applications for automation, analysis, and visualization.