>
        <span class="bp">self</span><span class="o">.</span><span class="n">_diffSets</span> <span class="o">=</span> <span class="p">{}</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">_trans_set</span> <span class="o">=</span> <span class="nb">set</span><span class="p">()</span>
        <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_iFile</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span