how to specify dependency on docker-py v1 and v2?

[jizhilong]

As the pypi project name for docker-py changed from docker-py to docker since release 2.0, how should I write a version specifier looks like docker-py >= 1.8.1, < 2.2?

[TomasTomecek]

Right now, it's impossible to do such thing in requirements.txt.

You could potentially pin to docker in requirements.txt, while in setup.py, you could check what version of docker-py is already installed -- and if there is none, pin to latest.

Anyone has a better idea?