title: python inheritance: __init__ (self, self)?
body: <p>I see a piece of code that is</p>
  <pre><code>class IBapi(EWrapper, EClient):
      def __init__(self):
          EClient.__init__(self, self)
  </code></pre>
  <p>I'm confused what the <code>self, self</code> does. I'm used to something like this.</p>
  <pre><code>class TestClient(EClient):
      def __init__(self, wrapper):
          EClient.__init__(self, wrapper)
  </code></pre>
  <p>Can someone explain <code>self, self</code>?</p>