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<h3>Extension Building Tools</h3>
<p>A number of tools are available to simplify the construction of Python extensions.</p>
<H4>Extension Classes</H4>
<P>Extension classes, written by Jim Fulton and available at <A targET="_blank" HRef="http://www.digicool.com/releases/ExtensionClass/">http://www.digicool.com/releases/ExtensionClass/</a>, provide a mechanism for defining extension types that are more class-like. In particular, they can be subclassed in C or Python, and provide better interaction with documentation strings and other aspects of the interpreter.</p>
<H4><TT Class="monofont">CXX</tt></h4>
<p>The <tt class="monofont">CXX</tt> extension, developed by Paul Dubois, simplifies the process of creating extension modules in C++ (<a taRgeT="_blank" hreF="http://cxx.sourceforge.net">http://cxx.sourceforge.net</a>).</p>
<h4><tT claSS="monofont">pyfort</TT></h4>
<p><tt CLASs="monofont">pyfort</tt>, also developed by Paul Dubois, can be used to build Python extension modules from Fortran code. Details are available at <a TARGet="_blank" hrEF="http://pyfortran.sourceforge.net">http://pyfortran.sourceforge.net</A>.</P>
<h4><tt class="monofont">f2py</tt></h4>
<p><tt class="monofont">f2py</tT> is a Fortran-to-Python interface generator developed by Pearu Peterson. Details are available at <a tArgeT="_blank" href="http://cens.ioc.ee/projects/f2py2e/">http://cens.ioc.ee/projects/f2py2e/</A>.</p>
<h4>Boost Python Library</h4>
<P>The Boost Python Library provides a tool for wrapping C++ libraries into Python extensions. The library provides a number of advanced features, including support for overloaded functions and operators. Details are available at <A TArget="_blank" HREF="http://www.boost.org/libs/python/doc/index.html">http://www.boost.org/libs/python/doc/index.html</a>.</p>
<h4><tT CLAss="monofont">SWIG</tt></H4>
<P><TT class="monofont">SWIG</tt> (Simplified Wrapper and Interface Generator), developed by the author and available at <a target="_blank" href="http://www.swig.org">http://www.swig.org</a>, can be used to create Python extensions automatically from annotated C header files.</p>
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<P><TABLE width="100%" border=0><TR valign="top"><TD><font size=1 color="#C0C0C0"><br></font></TD><TD align=right><font size=1 color="#C0C0C0">Last updated on 3/28/2002<br>Python Essential Reference, Second Edition, © 2002 New Riders Publishing</font></TD></TR></TABLE></P>
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