I often find myself writing meta decorators:
_reg = {}
def register(name):
def meta(func):
_reg[name] = func
return func
return meta
Or some such thing. And that solution is very often enough. But, for the times when you need a bit more control, I've created Registrar. The situation that prompted me to write this was within the confines of a class -- and the functions were being "registered" before they became bound...
Anyway, here's a sample of Registrar in action:
from registrar import NamedRegistrar
class Spam:
def __init__(self):
self.events = self._events.bind(self)
# or
self.shop = Shoppe()
for event, value in self._events.bind(self):
self.show.addEventHandler(event, value[0], **value[2])
## setup events
_events = NamedRegistrar()
@_events('cheese', bubble=False)
def onCheese(self, baz):
pass
@_events('eggs')
def onEggs(self, baz):
return 'no eggs. cheese.'
