This post is an attempt to reach to the developers who have not yet participated in AutoCAD Plant3d Customer Council.
As you might know, there was a Plant 3D Next Release Beta went live last month and one important change in the Beta is that Python scripts are in Python 3.7 instead of Python 2.7 (which is used in Plant 3D 2021 and earlier versions). The change is due to Python 2.7 went out of support (https://pythonclock.org/) on January 1, 2020 and the guidance from Autodesk security team for products to upgrade Python from 2.7 to 3.x.
For any of your customers or external users, they can click https://feedback.autodesk.com/key/plant3d to join AutoCAD Customer Council.