[Python-Dev] PEP 246, redux

[Carlos Ribeiro]

On Thu, 13 Jan 2005 10:08:10 -0500, Phillip J. Eby
<pje at telecommunity.com> wrote:
> With the previous PEP, people could create all sorts of subtle problems in
> their code (with or without transitivity!) and have no direct indicator of
> a problem.  Clark and Ian made me realize this with their string/file/path
> discussions -- *nobody* is safe from implicit adaptation if adaptation
> actually creates new objects with independent state!  An adapter's state
> needs to be kept with the original object, or not at all, and most of the
> time "not at all" is the correct answer.

+1, specially for the last sentence. An adapter with local state is
not an adapter anymore! It's funny how difficult it's to get this...
but it's obvious once stated.

-- 
Carlos Ribeiro
Consultoria em Projetos
blog: http://rascunhosrotos.blogspot.com
blog: http://pythonnotes.blogspot.com
mail: carribeiro at gmail.com
mail: carribeiro at yahoo.com