&quot;</span>  

    <span class="n">other</span><span class="o">.</span><span class="n">associative</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">associative</span>  

    <span class="k">return</span>

</div>
<div class="viewcode-block" id="Directional.is_equiv"><a class="viewcode-back" href="../../spacegrids.html#spacegrids.abstract.Directional.is_equiv">[docs]</a>  <span class="k">def</span> <span class="nf">is_equiv</span><span class="p">(</span><sp