PyQt4: Free utility that brings together the Qt C++ cross-platform application framework and the cross-platform interpreted language Python.

Free utility that brings together the Qt C++ cross-platform application framework and the cross-platform interpreted language Python.

PyQt is a set of Python bindings for Nokia's Qt application framework. There are two sets of bindings: PyQt v4 supports Qt v4; and the older PyQt v3 supports Qt v3 and earlier. The bindings are implemented as a set of Python modules and contain over 300 classes and over 6,000 functions and methods.

PyQt4 contains the following Python modules.
- The QtCore module contains the core non-GUI classes, including the event loop and Qt's signal and slot mechanism. It also includes platform independent abstractions for Unicode, threads, mapped files, shared memory, regular expressions, and user and application settings.
- The QtGui module contains the majority of the GUI classes. These include a number of table, tree and list classes based on the model-view-controller design pattern. Also provided is a sophisticated 2D canvas widget capable of storing thousands of items including ordinary widgets.
- The QtHelp module contains classes for creating and viewing searchable documentation and being able to integrate online help with PyQt applications. It is based on the C++ port of the Lucene text search engine.
- The QtNetwork module contains classes for writing UDP and TCP clients and servers. It includes classes that implement FTP and HTTP clients and support DNS lookups. Network events are integrated with the event loop making it very easy to develop networked applications.
- The QtOpenGL module contains classes that enable the use of OpenGL in rendering 3D graphics in PyQt applications.
- The QtScript module contains classes that enable PyQt applications to be scripted using Qt's JavaScript interpreter.
- The QtSql module contains classes that integrate with open-source and proprietary SQL databases. It includes editable data models for database tables that can be used with GUI classes. It also includes an implementation of SQLite.
- The QtSvg module contains classes for displaying the contents of SVG files. It supports the static features of SVG 1.2 Tiny.
- The QtTest module contains functions that enable unit testing of PyQt applications. PyQt does not implement the complete Qt unit test framework. Instead it assumes that the standard Python unit test framework will be used and implements those functions that simulate a user interacting with a GUI.
- The QtWebKit module implements a web browser engine based on the WebKit open source browser engine used by Apple's Safari. It allows the methods and properties of Python objects to be published and appear as JavaScript objects to scripts embedded in HTML pages.
- The QtXml module implements SAX and DOM interfaces to Qt's XML parser.
- The QtXmlPatterns module implements XQuery and XPath support for XML and custom data models.
- The phonon module implements a multimedia framework that enables the use of audio and video content in PyQt applications. On Windows DirectX is used as the backend, on MacOS/X QuickTime is used as the backend, and on Linux GStreamer is used as the backend.

PyQt also contains a number of utility programs.
- pyuic4 corresponds to the Qt uic utility. It converts GUIs created using Qt Designer to Python code.
- pyrcc4 corresponds to the Qt rcc utility. It embeds arbitrary resources (eg. icons, images, translation files) described by an XML resource collection file in a Python module. These resources can then be accessed from a PyQt application as files in a virtual filesystem.
- pylupdate4 corresponds to the Qt lupdate utility. It extracts all of the translatable strings from Python code and creates or updates translation files. These are then used by Qt Linguist to manage the translation of those strings.

NOTE: PyQt follows a similar licensing model to that used by Qt and is available under the following licenses.
- GNU General Public License v2
- GNU General Public License v3
- PyQt Commercial License


- Qt

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  • Updated:
    Oct 03, 2018
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