How to link a text object body to the edge length of another object with Python? I would like to create a tool to measure object length dynamically.

Something like a group of 2 objects:


1 unique edge object
1 text object (children of the previous)


How to link edge length to the text object body?
Dolf Veenvliet already dit it several years ago!
Thank you to Duarte who provided the link.

The Caliper Blender Addon

The script