Add basic embedding support.

[SVN r30601]

src/import.cpp

@@ -0,0 +1,25 @@
+// Copyright Stefan Seefeld 2005.
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#include <boost/python/import.hpp>
+#include <boost/python/borrowed.hpp>
+#include <boost/python/extract.hpp>
+#include <boost/python/handle.hpp>
+
+namespace boost 
+{ 
+namespace python 
+{
+
+object import(str name)
+{
+  // should be 'char const *' but older python versions don't use 'const' yet.
+  char *n = python::extract<char *>(name);
+  python::handle<> module(python::borrowed(PyImport_AddModule(n)));
+  return python::object(module);
+}
+
+}  // namespace boost::python
+}  // namespace boost