nings</span><span class="o">.</span><span class="n">warn</span><span class="p">(</span> <span class="s">&#39;Warning from eq_perm (often benign): inputs not permutable, returning None.&#39;</span><span class="p">)</span>
          <span class="k">return</span>

    <span class="k">else</span><span class="p">:</span>
      <span class="k">if</span> <span class="n">verbose</span><span class="p">:</span>
        <span class="k">print</span> <span class="s">&quot;Message from eq_perm: inputs must be of equal le