an><span class="o">.</span><span class="n">db</span><span class="p">:</span>
                <span class="n">f</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="s1">&#39;,&#39;</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="nb">map</span><span class="p">(</span><span class="nb">str</span><span class="p">,</span> <span class="n">line</span><span class="p">))</span> <span class="o">+</span> <span class="s1">&#39;</span