span><span class="o">.</span><span class="n">close</span><span class="p">()</span>
                <span class="k">except</span><span class="p">:</span>
                    <span class="k">pass</span>

            <span class="bp">self</span><span class="o">.</span><span class="n">_streams</span> <span class="o">=</span> <span class="p">{}</span>

        <span class="k">try</span><span class="p">:</span>
            <span class="bp">self</span><span class="o">.</span><span class="n">_ifc</span><span class=