PyQt v4.5 Released

5 June 2009

PyQt v4.5 has been released. The highlights of the release include support for Python v3 and Qt v4.5.1, a new Pythonic API for connecting signals and slots, and a port of the current Qt examples launcher.

The major new features are:

• support for Python v3
• support for Qt v4.5.1
• added the QInputContextFactory class
• a new, more Pythonic, API has been added for connecting signals and slots which does not require knowledge of C++ data types
• new signals can now be defined using pyqtSignal as a more Pythonic replacement of the __pyqtSignals__ class attribute.
• added the pyqtSlot decorator as a more Pythonic replacement of the pyqtSignature decorator
• the "type" argument to pyqtProperty() can also be a Python type object
• the "type" argument to Q_ARG() can also be a Python type object
• the "type" argument to Q_RETURN_ARG() can also be a Python type object
• added QT_TR_NOOP_UTF8()
• super() works without restrictions
• replaced the old qtdemo example launcher with a port of the newer version
• added the editabletreemodel.py and fetchmore.py examples
• replaced the old tutorial with the newer Address Book tutorial.