n><span class="p">,</span> <span class="n">files</span> <span class="ow">in</span> <span class="n">os</span><span class="o">.</span><span class="n">walk</span><span class="p">(</span><span class="n">nested_tmp_dir</span><span class="p">):</span>
            <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">files</span><span class="p">)</span> <span class="o">&gt;</span> <span class="mi">0</span><span class="p">:</span>
                <span class="n">nested_src_dir