pip as an importable module?

[Skip Montanaro]

I'm trying to get pip-conflict-checker working with Python 3.6:

https://github.com/ambitioninc/pip-conflict-checker

It would seem that the pip API has changed since this tool was last
updated, as what's there appears only to be used in support of pip as
a command line tool. Is there something comparable which is being
maintained, or a description of how to adapt to the new
pip-as-a-module API?

Thx,

Skip