'docker-py' package is polluting the namespace - Docker Version 17.03

[benhtn]

I'm on OSX 10.11.6 with Docker Version 17.03.0-ce-mac2. When trying to run:
$craftman --port=8080 install
I get

ERROR: Dependency conflict: an older version of the 'docker-py' package is polluting the namespace. Run the following command to remedy the issue:
pip uninstall docker docker-py; pip install docker

I ran those commands as root, but it still came back the same. Is this an issue when using craftman with the new version of Docker maybe?

Cheers