title: How '\a' equal to '\7' in python?
body: <pre><code>a = '\a'
  &gt;&gt;&gt; b = '\7'
  &gt;&gt;&gt; a == b
  True
  &gt;&gt;&gt; 
  </code></pre>
  
  <p>How can <code>a</code> and <code>b</code> be equal? Can someone give the reason?</p>