From the PyQT website: "Like Qt itself, PyQt is provided under a number of licenses depending on how it is going to be used. In fact, we try and follow Trolltec

From the PyQT website: "Like Qt itself, PyQt is provided under a number of licenses depending on how it is going to be used. In fact, we try and follow Trolltech's licensing model as closely as we can." - http://www.riverbankcomputing.co.uk/commercial/pyqt http://www.riverbankcomputing.co.uk/commercial/pyqt So I'd guess from this that later versions of PyQt will be released under LGPL, though of course that's not yet certain.