a last resort
rather than as a preventative measure.  The solution is to add
<em>using-declarations</em> to force the names to be available in the
enclosing namespace without qualification:</p>
<pre class="literal-block">
namespace graphs
{
  using graphs::graph;
  using graphs::visitor;
  using graphs::root_vertex;
  using graphs::index_map;
  using graphs::color_map;
}
</pre>
</div>
</div>
<div class="section" id="python-binding">
<h1><a class="toc-backref" href="#id42">6&nbsp;&nbsp;&nbsp;Python Binding</