Property and __getattr__ compatibility issue with AttributeError

I just encountered an unexpected behavior. This is a simple class with a __getattr__ method and a property attribute with a typo inside:

class A(object):
    def __getattr__(self, attr):
        if not attr.startswith("ignore_"):
            raise AttributeError(attr)

    @property
    def prop(self):
        return self.some_typo

a = A() # Instantiating
a.ignore_this # This is ignored
a.prop # This raises an Attribute Error

This is the expected outcome (the one I get if __getattr__ is commented):

AttributeError: 'A' object has no attribute 'some_typo'

And this is what I get:

AttributeError: prop

I know this has to do with__getattr__ catching the AttributeError but is there a nice and clean workaround for this issue? Because I can assure you, this is a debug nightmare...

You can just raise a better exception message:

class A(object):
  def __getattr__(self, attr):
    if not attr.startswith("ignore_"):
      raise AttributeError("%r object has not attribute %r" % (self.__class__.__name__, attr))

  @property
  def prop(self):
    return self.some_typo

a=A()
a.ignore_this
a.prop

EDIT: calling __getattribute__ from object base class solves the problem

class A(object):
  def __getattr__(self, attr):
    if not attr.startswith("ignore_"):
      return self.__getattribute__(attr)

  @property
  def prop(self):
    return self.some_typo