FileCookieJar has not attribute "_self_load"

[Dragos]

On Jan 17, 11:48 am, "Gabriel Genellina" <gagsl-... at yahoo.com.ar>
wrote:
> En Fri, 16 Jan 2009 17:19:47 -0200, escribiste en el grupo
> gmane.comp.python.general
>
> > I am trying to make a testing script to load/save cookies to a file
> > with FileCookieJar, but it results in this error: FileCookieJar has
> > not attribute "_self_load"
>
> FileCookieJar is an abstract class, although it isn't clear at all from
> the documentation. (You may want to file a documentation bug athttp://bugs.python.org)
> You must instantiate a specific subclass (like MozillaCookieJar), which
> determines the actual file format used.
>
> --
> Gabriel Genellina

Oh, thank you so much.
Using MozillaCookieJar works just fine.

But could you please explain what an abstract class is (or where i can
find documentation for this term). Thanks!