PyQT can be considered a reasonable (and in many ways superior) alternative to WinForms but what about WPF? Is there a modern cross-platform non-browser declara

PyQT can be considered a reasonable (and in many ways superior) alternative to WinForms but what about WPF? Is there a modern cross-platform non-browser declarative 2-way-binding MVVM desktop GUI toolkit? I use PyQT mysef but I really wish I could use binding instead of just handling events manually.