frameinspect.py

class Blorgle(object):
    @property
    def incompatible(self):
        import inspect
        frame = inspect.currentframe()
        print('Current')
        print(frame.f_locals.get('self', None))
        print('Previous')
        print(frame.f_back.f_locals.get('self', None))
        print('2Prev')
        print(frame.f_back.f_back.f_locals.get('self', None))
        print('3Prev')
        print(frame.f_back.f_back.f_back.f_locals.get('self', None))
    def checkCaller(self):
        return self.incompatible

class Florgle(object):
    def callOther(self, other):
        return other.checkCaller()

a = Blorgle()
b = Florgle()
b.callOther(a)