title: How to initialize one parent at a time in multiple inheritance?
body: <p>Suppose I have the following class inheriting from classes <code>A</code> and <code>B</code>:</p>
  <pre class="lang-py prettyprint-override"><code>class A:
      def __init__(self):
          self.x = 2
  class B:
      def __init__(self,u):
          self.y = u + 2
  class C(A,B):
      def __init__(self):
          #self.y should be 4 here
  </code></pre>
  <p>How do I initialize B only after initializing A? Using <code>super(C,self).__init__()</code> doesn't let me use attributes of A into B.</p>