On Tuesday 11 April 2006 17:43, Alan Gauld wrote:
> >> There is no practical use for decorators IMHO
> >
> > It's true that decorators are syntactic sugar and don't add any new
> > functional capabilities to the language.
>
> Which is all I intended to imply.
You have a different meaning of "practical use" from common usage then.
Something that makes it easier to:
* Understand that a function has been modified
* Make it clear that a function is a staticmethod/classmethod/etc *right at
the beginning of a function* without having to read the entire body.
* Reduce typing
* Allow hinting of types for integration with tools like PyObjC
* Make it clear when reading the definition of a method/function is
memoised, traced etc
* Simplifying augmentation of generators with arbitrary extra
communications attributes.
... are all practical benefits. That means they have practical use in my
book :-)
Syntactic sugar *IS* a practical benefit. After all, every language above
assember is syntactic sugar, and by your definition of no practical use.
Michael.
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