[Python.NET] Can Python.Net inherit .Net Interface Class

I am attempting to implement a MVVM WPF application in Python.Net. The ViewModel class needs to implement the INotifyPropertyChanged interface. class ViewModel(System.ComponentModel.INotifyPropertyChanged): def __init__(self): pass vm = ViewModel() gives exception: "TypeError: interface takes exactly one argument" I am not sure what is the reason. I remember a post last year saying the the interface inheritance is implemented in a development brand and not integrated into main branch. not sure if it is the reason. I am using python 2.1.0.dev1. thanks