Comment 25 for bug 1880749

We have -proposed enabled in one of our focal OpenStack deployments and this update appears to have regressed the setup of virtualenv's for reactive charms (which ship with a wheelhouse of python module dependencies including pip) - we see this error as new charms attempt to setup a venv using pip:

ImportError: cannot import name 'pytoml' from 'pip._vendor'

Downgrading the python3-pip + hard versioned depends resolves this issue for us.