(self, other, context=None)
return other.__sub__(self, context=context)
Return other - self
Return other - self
Return other - self
def __rsub__(self, other, context=None):
        """Return other - self"""
        other = _convert_other(other)
        if other is NotImplemented:
            return other

        return other.__sub__(self, context=context)
def __rsub__ ( self , other , context = None ) : other = _convert_other ( other ) if other is NotImplemented : return other return other . __sub__ ( self , context = context )