calling fit() after pip install fails with error "fit() missing 1 required positional argument: 'X'"

[synapticlee]

Hey, I was trying to get the demo to work after pip installing and in Python 2.7 and 3.6 on Windows and 3.6 on Mac, but running even the demo notebook returned an error: "fit() missing 1 required positional argument: 'X'". Pulling the latest version from this repo worked, but it seems there is something broken in the pip version that was patched in the github version.