<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Deploying Commercial PyQt4 Applications — PyQt 4.10.3 Reference Guide</title>
<link rel="stylesheet" href="_static/default.css" type="text/css" />
<link rel="stylesheet" href="_static/pygments.css" type="text/css" />
<script type="text/javascript">
var DOCUMENTATION_OPTIONS = {
URL_ROOT: '',
VERSION: '4.10.3',
COLLAPSE_INDEX: false,
FILE_SUFFIX: '.html',
HAS_SOURCE: true
};
</script>
<script type="text/javascript" src="_static/jquery.js"></script>
<script type="text/javascript" src="_static/underscore.js"></script>
<script type="text/javascript" src="_static/doctools.js"></script>
<link rel="shortcut icon" href="_static/logo_tn.ico"/>
<link rel="top" title="PyQt 4.10.3 Reference Guide" href="index.html" />
<link rel="next" title="The PyQt4 Build System" href="build_system.html" />
<link rel="prev" title="Selecting Incompatible APIs" href="incompatible_apis.html" />
</head>
<body>
<div class="related">
<h3>Navigation</h3>
<ul>
<li class="right" style="margin-right: 10px">
<a href="genindex.html" title="General Index"
accesskey="I">index</a></li>
<li class="right" >
<a href="py-modindex.html" title="Python Module Index"
>modules</a> |</li>
<li class="right" >
<a href="build_system.html" title="The PyQt4 Build System"
accesskey="N">next</a> |</li>
<li class="right" >
<a href="incompatible_apis.html" title="Selecting Incompatible APIs"
accesskey="P">previous</a> |</li>
<li><a href="index.html">PyQt 4.10.3 Reference Guide</a> »</li>
</ul>
</div>
<div class="document">
<div class="documentwrapper">
<div class="bodywrapper">
<div class="body">
<div class="section" id="deploying-commercial-pyqt4-applications">
<span id="ref-deploy-commercial"></span><h1>Deploying Commercial PyQt4 Applications<a class="headerlink" href="#deploying-commercial-pyqt4-applications" title="Permalink to this headline">ΒΆ</a></h1>
<p>When deploying commercial PyQt4 applications it is necessary to discourage
users from accessing the underlying PyQt4 modules for themselves. A user that
used the modules shipped with your application to develop new applications
would themselves be considered a developer and would need their own commercial
PyQt4 license.</p>
<p>One solution to this problem is the <a class="reference external" href="http://www.riverbankcomputing.com/software/vendorid/">VendorID</a> package. This allows
you to build Python extension modules that can only be imported by a digitally
signed custom interpreter. The package enables you to create such an
interpreter with your application embedded within it. The result is an
interpreter that can only run your application, and PyQt4 modules that can only
be imported by that interpreter. You can use the package to similarly restrict
access to any extension module.</p>
<p>In order to build PyQt4 with support for the VendorID package, pass the
<a class="reference internal" href="installation.html#cmdoption-configure.py--vendorid"><em class="xref std std-option">--vendorid</em></a> command line option to
<strong class="program">configure.py</strong>.</p>
</div>
</div>
</div>
</div>
<div class="sphinxsidebar">
<div class="sphinxsidebarwrapper">
<p class="logo"><a href="index.html">
<img class="logo" src="_static/logo.png" alt="Logo"/>
</a></p>
<h4>Previous topic</h4>
<p class="topless"><a href="incompatible_apis.html"
title="previous chapter">Selecting Incompatible APIs</a></p>
<h4>Next topic</h4>
<p class="topless"><a href="build_system.html"
title="next chapter">The PyQt4 Build System</a></p>
<div id="searchbox" style="display: none">
<h3>Quick search</h3>
<form class="search" action="search.html" method="get">
<input type="text" name="q" />
<input type="submit" value="Go" />
<input type="hidden" name="check_keywords" value="yes" />
<input type="hidden" name="area" value="default" />
</form>
<p class="searchtip" style="font-size: 90%">
Enter search terms or a module, class or function name.
</p>
</div>
<script type="text/javascript">$('#searchbox').show(0);</script>
</div>
</div>
<div class="clearer"></div>
</div>
<div class="related">
<h3>Navigation</h3>
<ul>
<li class="right" style="margin-right: 10px">
<a href="genindex.html" title="General Index"
>index</a></li>
<li class="right" >
<a href="py-modindex.html" title="Python Module Index"
>modules</a> |</li>
<li class="right" >
<a href="build_system.html" title="The PyQt4 Build System"
>next</a> |</li>
<li class="right" >
<a href="incompatible_apis.html" title="Selecting Incompatible APIs"
>previous</a> |</li>
<li><a href="index.html">PyQt 4.10.3 Reference Guide</a> »</li>
</ul>
</div>
<div class="footer">
© Copyright 2013 Riverbank Computing Limited.
Created using <a href="http://sphinx.pocoo.org/">Sphinx</a> 1.1.3.
</div>
</body>
</html>
