        in Python, the Python C API requires you to do it <a href="http://www.python.org/doc/current/c-api/refcounting.html" target="_top">by
        hand</a>. This is messy and especially hard to get right in the presence
        of C++ exceptions. Fortunately Boost.Python provides the <a href="../../reference/utility_and_infrastructure/boost_python_handle_hpp.html#utility_and_infrastructure.boost_python_handle_hpp.class_template_handle" target="_top">handle</a>
        and <a href="../../reference/object_