title: How to fix "protocol wrongtype for socket" in jupyter notebook
body: <p>I have installed <code>anaconda3</code> with <code>python 3.x</code> in windows 7 professional 64 bit processor.
  While opening new jupyter notebook in <code>python 3 kernel</code>. It shows error message as</p>
  
  <blockquote>
    <p>"Assertion failed :protocol wrong type for socket [10041 ]
    c:\ci\zeromq_1549025594292\work\src\ip.cpp:417"</p>
  </blockquote>
  
  <p>and python stopped running. 
  Kindly help to fix the issue.</p>
  
  <p>Regards,
  Geetha S</p>
  
  <p>expect the new notebook to be opened for coding</p>