Wilbert Berendsen schrieb: > Hi, is it possible to manipulate class attributes from within a decorator > while the class is being defined? > > I want to register methods with some additional values in a class attribute. > But I can't get a decorator to change a class attribute while the class is > still being defined. Something like: > > class Parser(object): > > regexps = [] > def reg(regexp): > def deco(func): > regexps.append((regexp, func)) > return func > return deco > > @reg(r'".*"') > def quoted_string(self): > pass > > How can I reach the class attribute `regexps' from within a decorator?
It's really tricky . The class object doesn't exists yet. It's created after all functions are parsed and created. You have can walk up the stack frames but it's ugly. Christian -- http://mail.python.org/mailman/listinfo/python-list
