ss="ow">is</span> <span class="kc">None</span><span class="p">:</span>
                <span class="n">name</span> <span class="o">=</span> <span class="sa">f</span><span class="s1">&#39;unknown.</span><span class="si">{</span><span class="n">unknown</span><span class="si">}</span><span class="s1">&#39;</span>
                <span class="n">unknown</span> <span class="o">+=</span> <span class="mi">1</span>

            <span class="k">for</span> <span class="n">k</span><span class="p">,</span> <span class=