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91 lines
2.5 KiB
HTML
91 lines
2.5 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<!-- Copyright David Abrahams 2006. Distributed under the Boost -->
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<!-- Software License, Version 1.0. (See accompanying -->
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<!-- file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) -->
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
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<link rel="stylesheet" type="text/css" href="../boost.css">
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<title>Boost.Python - <boost/python/import.hpp></title>
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</head>
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<body>
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<table border="0" cellpadding="7" cellspacing="0" width="100%" summary=
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"header">
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<tr>
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<td valign="top" width="300">
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<h3><a href="../../../../index.htm"><img height="86" width="277"
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alt="C++ Boost" src="../../../../boost.png" border="0"></a></h3>
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</td>
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<td valign="top">
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<h1 align="center"><a href="../index.html">Boost.Python</a></h1>
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<h2 align="center">Header <boost/python/import.hpp></h2>
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</td>
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</tr>
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</table>
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<hr>
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<h2>Contents</h2>
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<dl class="page-index">
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<dt><a href="#introduction">Introduction</a></dt>
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<dt><a href="#functions">Functions</a></dt>
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<dd>
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<dl class="page-index">
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<dt><a href="#import-spec"><code>import</code></a></dt>
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</dl>
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</dd>
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<dt><a href="#examples">Examples</a></dt>
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</dl>
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<hr>
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<h2><a name="introduction"></a>Introduction</h2>
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<p>Exposes a mechanism for importing python modules.</p>
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<h2><a name="functions"></a>Functions</h2>
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<h3><a name="import-spec"></a><code>import</code></h3>
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<pre>
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object import(str name);
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</pre>
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<dl class="function-semantics">
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<dt><b>Effects:</b> Imports the module named by <code>name</code>.</dt>
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<dt><b>Returns:</b> An instance of <a href="object.html#object-spec">object</a>
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which holds a reference to the imported module.</dt>
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</dl>
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<h2><a name="examples"></a>Examples</h2>
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<para>The following example demonstrates the use of <function>import</function>
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to access a function in python, and later call it from within C++.</para>
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<pre>
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#include <iostream>
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#include <string>
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using namespace boost::python;
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void print_python_version()
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{
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// Load the sys module.
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object sys = import("sys");
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// Extract the python version.
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std::string version = extract<std::string>(sys.attr("version"));
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std::cout << version << std::endl;
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}
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</pre>
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<p>Revised 01 November, 2005</p>
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<p><i>© Copyright Stefan Seefeld 2005.</i></p>
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</body>
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</html>
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