title: Load and read ply files with Pymesh
body: <p>I am trying to load/read a ply file using PyMesh and this line command:</p>
  
  <p>mesh = pymesh.load_mesh("model.obj")</p>
  
  <p>as it is in <a href="http://pymesh.readthedocs.io/en/latest/basic.html" rel="noreferrer">http://pymesh.readthedocs.io/en/latest/basic.html</a>.</p>
  
  <p>But this gives me an error "AttributeError: 'module' object has no attribute 'load_mesh'".</p>
  
  <p>Am I doing anything wrong? Also I want to know if PyMesh really allows to visualize in 3d the objects.</p>
  
  <p>Thank you.</p>