(self, other)
self / other with __future__ division.

        Should promote to float when necessary.
self / other with __future__ division.
self / other with __future__ division .
def __truediv__(self, other):
        """self / other with __future__ division.

        Should promote to float when necessary.
        """
        raise NotImplementedError
def __truediv__ ( self , other ) : raise NotImplementedError