span class="p">:</span>
            <span class="k">pass</span>
        <span class="k">else</span><span class="p">:</span>
            <span class="nb">print</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">fit_function</span><span class="p">)</span>
            <span class="k">raise</span> <span class="ne">Exception</span><span class="p">(</span>
                <span class="s1">&#39;Please submit a fitting function name in the available list: </span><span 