PySide came to exist because Nokia failed to reach a commercial licensing agreement with Riverbank (the makers of PyQt). I guess one side or the other was askin

PySide came to exist because Nokia failed to reach a commercial licensing agreement with Riverbank (the makers of PyQt). I guess one side or the other was asking for too much https://wiki.qt.io/PySide_FAQ https://wiki.qt.io/PySide_FAQ > Initial research into Python bindings for Qt involved speaking with Riverbank Computing, the makers of PyQt. We had several discussions with them to see if it was possible to use PyQt to achieve our goals. Unfortunately, a common agreement could not be found , so in the end we decided to proceed with PySide.