f</span> <span class="n">obj_type</span> <span class="o">==</span> <span class="s1">&#39;V&#39;</span><span class="p">:</span>
            <span class="c1"># Vertices at the current level</span>
            <span class="n">rowLabels</span> <span class="o">=</span> <span class="n">LevelVerts</span><span class="p">[</span><span class="n">L</span><span class="p">]</span>
        <span class="k">elif</span> <span class="n">obj_type</span> <span class="o">==</span> <span class="s1">&#39;E&#39;</span><span class=