Wheel and Cython are not installed when installing from a wheel. Should also fixed an NBT parsing bug. This was fixed a while back but apparently there was not a build created.
1.0.3.9b4
1.0.3.9b3
1.0.3.9b2
1.0.3.8
Added greater than and less than methods to int classes. Fixed tag_id so that it is accessible from the class not just an instance of the class.