Re Riverside forums: PyQt isn't Qt and isn't even the official Python bindings for Qt, but a third-party product. Only a small part of Qt is GPL, the vast major

Re Riverside forums: PyQt isn't Qt and isn't even the official Python bindings for Qt, but a third-party product. Only a small part of Qt is GPL, the vast majority is LGPL (always with commercial as the alternative). (Indeed, given that PyQt is GPL + commercial third-party, it seems to show that dual-licensing components that link to Qt is indeed possible)