On Tue, Dec 13, 2011 at 6:36 AM, Henrik Faber <hfa...@invalid.net> wrote: > Hi group, > > when decorating a method in Python3, by use of the > functools.update_wrapper function, it can be achieved that the docstring > and name of the original function is preseverved. > > However, the prototype is lost: When looking into the Python help, I > have lots of entries that look like: > > getfoo(*args, **kwargs) -> int > > setbar(*args, **kwargs) > > As you can imagine, this is really not very self-explanatory. I've seen > a solution which constructs a wrapper's wrapper function using > inspection and eval -- this looks really dirty to me, however. Then > there's the "decorator" external module -- but I'd like to do it with > on-board tools. > > Is this possible in Python3 with too much of a hassle?
The decorator module also uses inspection and eval to do it, by the way. Currently there is no pretty way to do it that I know of, but see PEP 362: http://www.python.org/dev/peps/pep-0362/ That PEP has unfortunately been in the "Open" state for quite a long time now, but it seems to me that a lot of people are starting to get interested in this issue, so maybe it will start to pick up some steam before too long. -- http://mail.python.org/mailman/listinfo/python-list
