an class="bp">self</span><span class="o">.</span><span class="n">ps</span><span class="p">:</span>
            <span class="n">p</span><span class="o">.</span><span class="n">daemon</span> <span class="o">=</span> <span class="p">(</span>
                <span class="kc">True</span>  <span class="c1"># if the main process crashes, we should not cause things to hang</span>
            <span class="p">)</span>
            <span class="n">p</span><span class="o">.</span><span class="n">start</span><span class=