[Python-Dev] dealing with decorators hiding metadata of decorated functions
Aahz
aahz at pythoncraft.com
Sun Mar 19 22:37:27 CET 2006
On Sun, Mar 19, 2006, Brett Cannon wrote:
>
> I guess we need to decide if we want to promote the copying of
> metadata from the decorated function into the decorator or not.
Short answer: absolutely yes
I had to deal with a related issue recently, where embedded doctests no
longer worked on the decorated function. There were two separate
problems: the first was non-copying of __doc__, which was easy enough to
fix; the second (which I still haven't fixed) is the fact that __name__
wasn't set, so doctest didn't auto-find the function. (The decorator
came from a different module.)
(This was Python 2.2/2.3, so decorators weren't actually involved, but I
think it's the same problem.)
I don't understand decorators well enough to propose a good solution
given the other constraints, but it seems clear to me that we need a good
solution of some kind.
--
Aahz (aahz at pythoncraft.com) <*> http://www.pythoncraft.com/
"19. A language that doesn't affect the way you think about programming,
is not worth knowing." --Alan Perlis
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