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PyQt
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<p>PyQt is a <a href="/facts/Python_/YbuGqofa">Python</a> <a href="/facts/Language_binding/V5HW4Wr4">binding</a> of the <a href="/facts/Cross-platform/16zqdvNR">cross-platform</a> <a href="/facts/GUI/wBlQFWDP">GUI</a> toolkit <a href="/facts/Qt_(toolkit)/gVhwlQnJ">Qt</a>, implemented as a Python <a href="/facts/Plug-in_(computing)/351Du3Wu">plug-in</a>. PyQt is <a href="/facts/Free_software/IaoVtJXn">free software</a> developed by the <a href="/facts/United_Kingdom/kuPAILt2">British</a> firm Riverbank Computing. It is available under similar terms to Qt versions older than 4.5; this means a variety of licenses including <a href="/facts/GNU_General_Public_License/S75KhLSX">GNU General Public License</a> (GPL) and commercial license, but not the <a href="/facts/GNU_Lesser_General_Public_License/AXwkz9x3">GNU Lesser General Public License</a> (LGPL). PyQt supports <a href="/facts/Microsoft_Windows/bwhAhuSL">Microsoft Windows</a> as well as various kinds of <a href="/facts/Unix/0pNL2seI">UNIX</a>, including <a href="/facts/Linux/9FvCKSTq">Linux</a> and <a href="/facts/MacOS/Y93vVpTm">macOS</a>. </p><p>PyQt implements around 440 classes and over 6,000 functions and methods including: </p> <ul><li>a substantial set of <a href="/facts/GUI_widget/SuVeScB2">GUI widgets</a></li> <li><a href="/facts/Class_(computer_science)/zvzkSAtE">classes</a> for accessing <a href="/facts/SQL/UjQLJcYm">SQL</a> <a href="/facts/Database/VYcpkevb">databases</a> (<a href="/facts/ODBC/2dV2Fm5j">ODBC</a>, <a href="/facts/MySQL/QEEDNBDP">MySQL</a>, <a href="/facts/PostgreSQL/LHdXuHfl">PostgreSQL</a>, <a href="/facts/Oracle_database/FHv5g732">Oracle</a>, <a href="/facts/SQLite/1PwYzIft">SQLite</a>)</li> <li>QScintilla, <a href="/facts/Scintilla_(editing_component)/SGgVAN82">Scintilla</a>-based rich text editor widget</li> <li>data aware widgets that are automatically populated from a database</li> <li>an <a href="/facts/XML/clNgUfWk">XML</a> <a href="/facts/Parsing/nRKB01S3">parser</a></li> <li><a href="/facts/Scalable_Vector_Graphics/ARq5C3YV">SVG</a> support</li> <li>classes for embedding <a href="/facts/ActiveX/xJb7t7Eh">ActiveX</a> controls on Windows (only in commercial version)</li></ul> <p>To automatically generate these bindings, Phil Thompson developed the tool <a href="/facts/SIP_(software)/PvFv0bBy">SIP</a>, which is also used in other projects. </p>