It ought to be called @instancemethod for a better analogy. PS Nick how's the book coming along? :-)
--Guido On 8/11/06, Nick Coghlan <[EMAIL PROTECTED]> wrote: > It's sometimes useful to be able to use an existing callable as a method of a > new class. If the callable is a real function, this is easy. You just > including the following line in the class definition: > > method = some_callable > > However, callable objects without a function-like __get__ method can't be used > that way. So, to avoid a dependency on an implementation detail of > some_callable (i.e. whether or not it is a true function object), you have to > write: > > > def method(): > return some_callable() > > (and you can lose useful metadata in the process!) > > However, if you're adding a callable as a class method or static method, there > is OOWTDI: > > method = classmethod(some_callable) > method = staticmethod(some_callable) > > It would be nice if there was a similar mechanism for normal instance methods > as well: > > method = function(some_callable) > > This came up during the PEP 343 implementation - "context = > contextlib.closing" is a tempting thing to write in order to provide a > "x.context()" method for use in a with statement, but it doesn't actually work > properly (because closing is a class, not a function). > > Similarly, you can't create a method simply by applying functools.partial to > an existing function - the result won't have a __get__ method, so it will be > treated like a normal attribute instead of as an instance method. > > Cheers, > Nick. > > -- > Nick Coghlan | [EMAIL PROTECTED] | Brisbane, Australia > --------------------------------------------------------------- > http://www.boredomandlaziness.org > _______________________________________________ > 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/guido%40python.org > -- --Guido van Rossum (home page: http://www.python.org/~guido/) _______________________________________________ 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