lass="p">)</span> <span class="k">for</span> <span
            class="n">c</span> <span class="ow">in</span> <span class="n">df</span><span class="o">.</span><span
            class="n">columns</span><span class="p">])</span>
        <span class="n">output</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span
            class="s1">&#39; </span><span class="se">\\\\</span><span class="s1"> </span><span class="se">\n</span><span
            class="s1">&#39;</span><span class