title: Is & faster than % when checking for odd numbers?
body: <p>To check for odd and even integer, is the lowest bit checking more efficient than using the modulo?</p>
  
  <pre><code>&gt;&gt;&gt; def isodd(num):
          return num &amp; 1 and True or False
  
  &gt;&gt;&gt; isodd(10)
  False
  &gt;&gt;&gt; isodd(9)
  True
  </code></pre>