Re: dealing with objects of 2 classes

Bartosz SKOWRON wrote:
> I have a new problem which I cannot find a solution.
> =

> Here is a very simple example:
> =

> cdef class a:
>     cdef foobar_t *foo
>     def __init__(self):
>            self.foo =3D extern_func1()
> =

> cdef class b:
>    cdef foobar_t *_foobar
>    def __init__(self, obja):
>            self._foobar =3D obja.foo
> =

> cdef class c:
>    def __init__(self, obja):
>            self._foobar =3D obja
> =

> =

> when i create new object of class b, `b(a())`  i get:
> AttributeError: 'a' object has no attribute 'foo'
> =

> when i create new object of class c, `c(a())`  i get:
> AttributeError: 'c' object has no attribute '_foobar'

You have to declare the variables that you assign the objects to, as in

	cdef b some_b
	some_b =3D b(a())
	print some_b.foo.some_struct_member

Otherwise, Pyrex cannot know what type they have, and that this type has
the above attributes.

Stefan