title: Print difference between two tuples
body: <p>How can I print just the differences between two tuples?</p>
  
  <pre><code> &gt;&gt;&gt;a=(1,2,3,4)
   &gt;&gt;&gt;b=(2,3,5,6)
  </code></pre>
  
  <p>If the tuples are as above then the expected output is <code>(1,4,5,6)</code>. The compare functions can only compare but could not find the differences.</p>
  
  <p>The tuples are generated by <code>MySQLdb</code> python library. The queries being executed produces a fair amount of data.</p>
  
  <pre><code>In [13]: c.execute(query)
  Out[13]: 86844L
  In [14]: qop1 = c.fetchall()
  In [19]: len(qop1)
  Out[19]: 86844
  </code></pre>
  
  <p>So if I compare every tuple with custom code it will take a lot of time. Can I achieve this an efficient way like an inbuilt python library?</p>