Doesn't work in pypy

[stuaxo]

It tries to use getrefcount, but pypy doesn't use refcounts

  File "test.py", line 4, in <module>
    from nodebox.graphics import *
  File "/mnt/data/home/stu/.virtualenvs/pypy/site-packages/NodeBox_for_OpenGL-1.7-py2.7.egg/nodebox/graphics/**init**.py", line 1, in <module>
    import bezier
  File "/mnt/data/home/stu/.virtualenvs/pypy/site-packages/NodeBox_for_OpenGL-1.7-py2.7.egg/nodebox/graphics/bezier.py", line 10, in <module>
    from context import BezierPath, PathElement, PathError, Point, MOVETO, LINETO, CURVETO, CLOSE
  File "/mnt/data/home/stu/.virtualenvs/pypy/site-packages/NodeBox_for_OpenGL-1.7-py2.7.egg/nodebox/graphics/context.py", line 23, in <module>
    from sys          import getrefcount
ImportError: cannot import name 'getrefcount'