title: PyCharm can't find a reference yet it definitely exists
body: <p>I'm trying to use a thing in <code>numpy.random</code> which I import using <code>from numpy.random import normal</code>. PyCharm tells me this is an unresolved reference despite being able to find other things in <code>numpy.random</code> such as <code>numpy.random.random</code>.</p>
  
  <p>Whenever I open up a Python shell and type <code>from numpy.random import normal</code> it runs fine and I can use <code>normal</code> just as I desire in the terminal.</p>
  
  <p>Why is this?</p>