I'm more curious as to how to get a lightweight Docker container running Python. The one they use pulls in an Ubuntu Quantal image, which isn't something that I

I'm more curious as to how to get a lightweight Docker container running Python. The one they use pulls in an Ubuntu Quantal image, which isn't something that I'd normally use (I'm more in the RHEL/CentOS camp). So, how would one go about building something like this that isn't tied to a container that pulls in a whole OS? Or is that just not the way these things work? Or am I just too used to virtualenv?