I have no problem with the package being multiple version, but I am not an expert in python packinging and just do this for frescobaldi. I have tried the multiversion way, but did not succeed. So if you can give me some help, I am perfectly fine with that.

If other projects would like to use this package, it's probably a good idea to move it elsewhere. It is only here because it became a requirement for frescobaldi, my real interest.