 class="linenos">66</span></a>                             <span class="sa">f</span><span class="s1">&#39; tuple containing &quot;x&quot;, &quot;y&quot; values...&#39;</span><span class="p">)</span>
</span><span id="BaseNetFeeder-67"><a href="#BaseNetFeeder-67"><span class="linenos">67</span></a>        <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">samp</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span> <span class="o">!=</span> <s