lass="p">)</span> <span class="o">/</span> <span class="nb">float</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">coords</span><span class="p">))</span> <span class="k">for</span> <span class="n">coords</span> <span class="ow">in</span> <span class="nb">zip</span><span class="p">(</span><span class="o">*</span><span class="n">polygon</span><span class="p">)]</span>
                    <span class="p">)</span>
                    <span class="n">polygon</span>