title: ImportError: No module named 'Cython'
body: <p>I'm trying do <code>from Cython.Build import cythonize</code> and I get the message <code>ImportError: No module named 'Cython'</code>, but I instaled the Cython with the comand <code>pip install Cython</code>. What's wrong?</p>
  
  <p>Python 3.5
  Cython 0.25.2
  Windows 8</p>