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<title>boost/python/import.hpp</title>
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<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="embedding.boost_python_import_hpp"></a><a class="link" href="boost_python_import_hpp.html" title="boost/python/import.hpp">boost/python/import.hpp</a>
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<div class="toc"><dl class="toc">
<dt><span class="section"><a href="boost_python_import_hpp.html#embedding.boost_python_import_hpp.introduction">Introduction</a></span></dt>
<dt><span class="section"><a href="boost_python_import_hpp.html#embedding.boost_python_import_hpp.function_import">Function
<code class="computeroutput"><span class="identifier">import</span></code></a></span></dt>
<dt><span class="section"><a href="boost_python_import_hpp.html#embedding.boost_python_import_hpp.examples">Examples</a></span></dt>
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<div class="titlepage"><div><div><h3 class="title">
<a name="embedding.boost_python_import_hpp.introduction"></a><a class="link" href="boost_python_import_hpp.html#embedding.boost_python_import_hpp.introduction" title="Introduction">Introduction</a>
</h3></div></div></div>
<p>
Exposes a mechanism for importing python modules.
</p>
</div>
<div class="section">
<div class="titlepage"><div><div><h3 class="title">
<a name="embedding.boost_python_import_hpp.function_import"></a><a class="link" href="boost_python_import_hpp.html#embedding.boost_python_import_hpp.function_import" title="Function import">Function
<code class="computeroutput"><span class="identifier">import</span></code></a>
</h3></div></div></div>
<pre class="programlisting"><span class="identifier">object</span> <span class="identifier">import</span><span class="special">(</span><span class="identifier">str</span> <span class="identifier">name</span><span class="special">);</span></pre>
<div class="variablelist">
<p class="title"><b></b></p>
<dl class="variablelist">
<dt><span class="term">Effects</span></dt>
<dd><p>
Imports the module named by name.
</p></dd>
<dt><span class="term">Returns</span></dt>
<dd><p>
An instance of object which holds a reference to the imported module.
</p></dd>
</dl>
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<a name="embedding.boost_python_import_hpp.examples"></a><a class="link" href="boost_python_import_hpp.html#embedding.boost_python_import_hpp.examples" title="Examples">Examples</a>
</h3></div></div></div>
<p>
The following example demonstrates the use of import to access a function
in python, and later call it from within C++.
</p>
<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">iostream</span><span class="special">></span>
<span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">string</span><span class="special">></span>
<span class="keyword">using</span> <span class="keyword">namespace</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">python</span><span class="special">;</span>
<span class="keyword">void</span> <span class="identifier">print_python_version</span><span class="special">()</span>
<span class="special">{</span>
<span class="comment">// Load the sys module.</span>
<span class="identifier">object</span> <span class="identifier">sys</span> <span class="special">=</span> <span class="identifier">import</span><span class="special">(</span><span class="string">"sys"</span><span class="special">);</span>
<span class="comment">// Extract the python version.</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">version</span> <span class="special">=</span> <span class="identifier">extract</span><span class="special"><</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">>(</span><span class="identifier">sys</span><span class="special">.</span><span class="identifier">attr</span><span class="special">(</span><span class="string">"version"</span><span class="special">));</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">version</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
<span class="special">}</span>
</pre>
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<td align="right"><div class="copyright-footer">Copyright © 2002-2005, 2015 David Abrahams, Stefan Seefeld<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>
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