ImportError: cannot import name 'encodestring' from 'base64

[homosapien-lcy]

Problem Description
ImportError: cannot import name 'encodestring' from 'base64 when. run the chaco/examples/demo/advanced/javascript_hover_tools.py

Reproduction Steps:

python chaco/examples/demo/advanced/javascript_hover_tools.py

Expected behavior:

OS, Python version: [MacOS, python3.11]