title: Python function that will return a count (int) representing the longest consecutive sequence of positive numbers in array
body: <blockquote>
    <p>The return value must be 0 or positive representing the length of the
    sequence. Let's call the function <code>longestSequencePos()</code>, with one
    argument (<code>nums</code>).</p>
  </blockquote>
  
  <p>And if you would comment out each section so I can understand it.</p>