Decorator for installables

[mithrandi]

Something like this:

@empowers(IFoo)
class MyPowerup(Item):
    …

which would be equivalent to:

@implementer(IFoo)
class MyPowerup(Item):
    powerupInterfaces = [IFoo]

The main motivation for this is that it makes no sense to have an interface in powerupInterfaces that you do not implement. Note that you can still implement interfaces that you don't power up for:

@implementer(INotPowerupInterface)
@empowers(IFoo)
class MyPowerup(Item):
    …

works fine.

[mithrandi]

Any thoughts on this?

[mithrandi]

Alternative naming suggestions wanted: empowers is the wrong tense, but empowerer is a bit awkward.

[ldanielburr]

I think "@bestows" might work. You want to be able to say that this class provides the following powerup, but "provides" is already a term with a specific meaning in zope.interface.

Some other options:
"@bequeathes"
"@confers"
"@ImpArts"
"@awards"

[ldanielburr]

Looking at this ticket again, I think I'd call it empowerment. empowerment(IFoo) reads sensibly, at least to me.