title: How to give jupyter cell standard input in python?
body: <p>I am trying to run a program on a jupyter notebook that accepts user input, and I cannot figure out how to get it to read standard input. For example, if I run the code with shift-enter:</p>
  
  <pre><code>a = input()
  print(a)
  </code></pre>
  
  <p>the cell indicates it is running, but does not accept input from me. How do I get it to accept input?</p>