devn00b
/
EQ2EMu


			
				
					
						
						
							12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091929394
							<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
<title>boost/python/import.hpp</title>
<link rel="stylesheet" href="../../boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
<link rel="home" href="../index.html" title="Boost.Python Reference Manual">
<link rel="up" href="../embedding.html" title="Chapter&#160;6.&#160;Embedding">
<link rel="prev" href="../embedding.html" title="Chapter&#160;6.&#160;Embedding">
<link rel="next" href="../utility_and_infrastructure.html" title="Chapter&#160;7.&#160;Utility and Infrastructure">
</head>
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table cellpadding="2" width="100%"><tr><td valign="top"><img alt="" width="" height="" src="../../images/boost.png"></td></tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="../embedding.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../embedding.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="../utility_and_infrastructure.html"><img src="../../images/next.png" alt="Next"></a>
</div>
<div class="section">
<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>
</h2></div></div></div>
<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>
</dl></div>
<div class="section">
<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>
</div>
</div>
<div class="section">
<div class="titlepage"><div><div><h3 class="title">
<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">&lt;</span><span class="identifier">iostream</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">string</span><span class="special">&gt;</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">&lt;</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">&gt;(</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">&lt;&lt;</span> <span class="identifier">version</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
<span class="special">}</span>
</pre>
</div>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><div class="copyright-footer">Copyright &#169; 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>
      </p>
</div></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="../embedding.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../embedding.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="../utility_and_infrastructure.html"><img src="../../images/next.png" alt="Next"></a>
</div>
</body>
</html>