n><span class="Operator">,</span> <span class="ID">arg3</span><span class="Operator">=</span><span class="Number">7</span><span class="Operator">)</span><span class="Operator">:</span></span>
<span class="line"><span class="LineNumber">   7 </span>    <span class="Comment"># arguments passed in can be None or a unicode object</span></span>
<span class="line"><span class="LineNumber">   8 </span></span>
<span class="line"><span class="LineNumber">   9 </span>    <span class="ID">arg1</span> <span class="Oper