title: failed building wheel for *python package*
body: <p>I'm trying to install the package numpy using pip</p>
  
  <p>I open up cmd, standing in C:/Python34/Scripts I type: "pip install numpy" and it tries to install it (A bunch of white text shows up). </p>
  
  <p>Inbetween the white text there is a red line saying "Failed building wheel for numpy", and at the end there is a bunch of incoherent red text which says something about error 1.</p>
  
  <p>This happens with all packages, thoughts? It says it is trying to install a cached version of numpy, could that be the problem? How do I empy the cache?</p>
  
  <p><strong>EDIT:</strong> seems to be only happening with numpy, but since many other packages require numpy, the too fail to install. </p>