Can't run examples on OSX

[KB]

A fresh checkout on a new mac mini server running OSX gives this. All demos do the same thing:

(venv)miniserver:pg keith$ python main.py
Select an example to run:

1. csg
2. cuboids
3. font
4. moving_spheres
5. poisson_spheres
6. sphere
7. temp
8. terrain
9. textured_sphere

   1
   Traceback (most recent call last):
   File "main.py", line 63, in
   main()
   File "main.py", line 58, in main
   module.Window()
   File "/Users/keith/pg/pg/core.py", line 305, in init
   self.call('setup')
   File "/Users/keith/pg/pg/core.py", line 372, in call
   getattr(listener, name)(_args, *_kwargs)
   File "/Users/keith/pg/examples/csg.py", line 17, in setup
   self.context.position = pg.VertexBuffer(position)
   File "/Users/keith/pg/pg/core.py", line 33, in init
   glGenBuffers(1, byref(handle))
   File "/Users/keith/GitHub/sandbox/venv/lib/python2.7/site-packages/OpenGL/latebind.py", line 45, in call
   return self._finalCall( _args, *_named )
   File "/Users/keith/GitHub/sandbox/venv/lib/python2.7/site-packages/OpenGL/wrapper.py", line 570, in wrapperCall
   pyArgs = tuple( calculate_pyArgs( args ))
   File "/Users/keith/GitHub/sandbox/venv/lib/python2.7/site-packages/OpenGL/wrapper.py", line 347, in calculate_pyArgs
   args
   ValueError: glGenBuffers requires 1 arguments (n), received 2: (1, <cparam 'P' (0x107f8ca30)>)
   (venv)miniserver:pg keith$