># remove indisered columns when reading the dataframe from the DB</span>
    <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">to_drop</span><span class="p">:</span>
        <span class="k">try</span><span class="p">:</span>
            <span class="n">X</span> <span class="o">=</span> <span class="n">X</span><span class="o">.</span><span class="n">drop</span><span class="p">(</span>
                <span class="p">[</span><span class="n">column</span><span