title: Which paths does python ctypes module search for libraries on Mac OS?
body: <p>Python documentation (I checked both 2.7 and 3.4) states that:</p>
  
  <blockquote>
    <p>On OS X, find_library() tries several predefined naming schemes and paths to locate the library, and returns a full pathname if successful:</p>
  </blockquote>
  
  <p>Then gives examples coming from two folders: <code>/usr/lib</code> and <code>/System/Library</code>. I suppose this is not full list, as I have experience with python finding library from <code>/usr/local/lib</code>. What is the full list of paths python ctypes find_library searches on Mac OS X?</p>