PyQt 是跨平台应用程式框架 Qt 的 Python 绑定版本，同时也是 PyKDE（KDE API 的 Python 绑定）的基础。PyQt 支持 Linux，Unix，Mac OS X 与 Windows 操作系统。 
PyQt v4.8 特性：- Added support for Qt v4.7 including the new QtDeclarative module.
- pyqtProperty() can now be used as a method decorator in the same way that the standard Python property type can be used.
- Added the notify argument to pyqtProperty().
- Unbound signals can now be subscripted in the same way that bound signals can.
- Added the missing << operator to QPolygon, QPolygonF and QXmlStreamAttributes.
- PyQt will now automatically keep a reference to objects set with some sort of setter method when Qt expects the underlying C instance to stay valid but does not take ownership of it.
- Added the lightmaps.py and stardelegate.py examples from Hans-Peter Jansen.
- Added the –assume-shared option to configure.py.
- The QtAssistant module is no longer built with Qt v4.7 and later.
SIP v4.11.2 特性：SIP v4.11.2 has been released. This version is required by PyQt v4.8 - /KeepReference/ can now be applied to global functions and static methods.
- %TypeCode can now be specified in a %MappedType directive.
- Mapped types for templates no longer require the template arguments to be fully defined.
- Build system changes required by PyQt v4.8 and Qt v4.7.
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