It seems like there is also an issue with property classes defined in a different module.

In the example below Foo.x uses standard property, and Foo.y uses prop imported from the prop module.

This results in docstring for Foo.y to be missed:

filip@klocek:~/test$ cat prop.py
class prop(property):
    pass
filip@klocek:~/test$ cat foo.py
from prop import prop

class Foo(object):

    @property
    def x(self):
        """
        >>> Foo().x
        'x'
        """
        return 'x'

    @prop
    def y(self):
        """
        >>> Foo().y
        'y'
        """
        return 'y'
filip@klocek:~/test$ python --version
Python 2.7.3
filip@klocek:~/test$ python -m doctest foo.py -v
Trying:
    Foo().x
Expecting:
    'x'
ok
2 items had no tests:
    foo
    foo.Foo
1 items passed all tests:
   1 tests in foo.Foo.x
1 tests in 3 items.
1 passed and 0 failed.
Test passed.
filip@klocek:~/test$ python3 --version
Python 3.2.3
filip@klocek:~/test$ python3 -m doctest foo.py -v
Trying:
    Foo().x
Expecting:
    'x'
ok
2 items had no tests:
    foo
    foo.Foo
1 items passed all tests:
   1 tests in foo.Foo.x
1 tests in 3 items.
1 passed and 0 failed.
Test passed.
filip@klocek:~/test$