</span>

<span class="k">class</span><span class="w"> </span><span class="nc">NewFeature</span><span class="p">(</span><span class="n">tk</span><span class="o">.</span><span class="n">Frame</span><span class="p">):</span>
    <span class="k">def</span><span class="w"> </span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">parent</span><span class="p">,</span> <span class="n">controller</span><span class="p">):</span>
        <span 