t</span>
<span class="k">try</span><span class="p">:</span>
    <span class="kn">import</span> <span class="nn">exceptions</span>
<span class="k">except</span> <span class="ne">ImportError</span><span class="p">:</span>
    <span class="kn">import</span> <span class="nn">builtins</span> <span class="k">as</span> <span class="nn">exceptions</span>
<span class="c1"># pylint: enable=unused-import</span>

<span class="c1"># software specific classes and modules from flex_extract</span>
<span class="kn">import</