On Wed, Aug 11, 2010 at 12:48 PM, Éric Araujo <mer...@netwok.org> wrote: >> The second (#9396) came up in the context of the new cache decorators >> added to functools, and allowing applications to choose their own >> caching strategies. I suggested exposing the original (uncached) >> function, and Raymond suggested that the easiest way to enable that >> would be for functools.update_wrapper to add a new attribute that >> provides a reference to the original function. > > I moved this feature request to its own bug after brief IRC discussion > with RDM: http://bugs.python.org/issue9567 > > The idea was to separate concerns and eventually get feedback from > people reading new-bugs-announce, but your email actually does that :) > > I say “add attribute to partial objects” in the bug title since I don’t > know if it’s feasible in wraps only; while update_wrapper is simple > Python code, wraps merely delegates to _functools.partial, so please > change the title (and maybe add easy keyword) if appropriate.
Ah, that's the trick though - the partial object is the *decorator*, so when you write @wraps(f) def wrapper: # .... it is equivalent to: def wrapper: # .... wrapper = partial(update_wrapper, wrapped=f)(wrapper) The partial object is a transient thing during the decoration process - the wrapper function itself is the object that persists. So it's only update_wrapper that needs changing to add the new attribute. Cheers, Nick. -- Nick Coghlan | ncogh...@gmail.com | Brisbane, Australia _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
