PyQtPySide

PyQtPySide refers to the Python bindings for the Qt application framework. Qt is a cross-platform application development framework widely used for creating graphical user interfaces (GUIs) and applications that run on various operating systems. The Python bindings allow developers to leverage the power of Qt using the Python programming language.

Historically, PyQt, developed by Riverbank Computing, was the primary Python binding for Qt. It has been available for many years and is known for its comprehensive features and performance. However, PyQt is distributed under a dual licensing model, with a commercial license for proprietary applications and a GPL license for open-source projects.

PySide, on the other hand, is the official Python binding for Qt, developed and maintained by The Qt Company. PySide is distributed under the LGPL license, which offers more flexibility for commercial applications without requiring the purchase of a separate commercial license. Both PyQt and PySide provide access to the vast majority of Qt's modules, including those for GUI development, networking, databases, multimedia, and more. The API offered by both bindings is largely similar, making it relatively straightforward for developers to switch between them. The choice between PyQt and PySide often depends on licensing requirements and project specifics.