proposal:

For importing visit into python -- instead of two stage import for the visit , we should move to:

• a visit_launcher module for the cases where you want to select a specific version of visit
• visit just being a specific version of the CLI.

This way we don't need to double load visit and end up with confusion about what aspects are available when.

The current setup is strained in Python 3 land, there might be other ways to improve but I think visit_launcher is a teachable and straight forward approach.