Let's install pyCharm code editor and configure it for Revit API Development.
Full Written Summary Coming Later…
In short, all you have to do is to install a python package called pyrevit-stubs-26.
The easiest way to do that is to open terminal and type pip install pyrevit-stubs-26.
Then wait 30-60seconds and Autocomplete for Revit API and pyRevit should start working.
This works or any IDE (I showed pyCharm, VS Code and Cursor AI). ANd it even works online…