tmp patch

with python 2.7.8

TypeError                                 Traceback (most recent call last)
<ipython-input-95-deb7a896443d> in <module>()
     78 
     79 
---> 80 delta_right = win.right - i_right

/Users/casarotti/canopy/User/lib/python2.7/site-packages/future-0.11.2-py2.7.egg/future/builtins/types/newint.pyc in __sub__(self, other)
     95 
     96     def __sub__(self, other):
---> 97         return newint(super(newint, self).__sub__(other))
     98 
     99     def __rsub__(self, other):

/Users/casarotti/canopy/User/lib/python2.7/site-packages/future-0.11.2-py2.7.egg/future/builtins/types/newint.pyc in __new__(cls, x, base)
     77             except:
     78                 raise TypeError("newint argument must be a string or a number, not '{0}'".format(
---> 79                                     type(val)))
     80 
     81 

TypeError: newint argument must be a string or a number, not '<type 'NotImplementedType'>'