When trying to fetch a container, the following exception is raised:

requests.exceptions.InvalidURL: Not supported URL scheme http+docker

This issue is actually a docker-py issue: docker/docker-py#3256. As noted in docker/docker-py#3256 (comment), the release is part of 7.1.0 of docker-py. It seems like all we need to do is bump the docker-py version in the poetry.lock file. A new release after merging a PR would be awesome.