Comment 1 for bug 702933

So, the problem code is in IntVariable:

   def parse_set(self, value, from_db):
        if not isinstance(value, (int, long, float, Decimal)):
            raise TypeError("Expected int, found %r: %r"
                            % (type(value), value))
        return int(value)

The intent of this code is to only accept "number" type values, rather than anything that has an __int__ that succeeds. For instance, we want the following to raise an error:

    foo.int_column = '42'

I'm not sure of what the best course of action is. I don't think we want to be checking for every possible number-like type that has ever been created individually.