Interfaces (a la PEP 245 and Zope)
Brendan Hahn
bhahn at spam-spam.g0-away.com
Fri Aug 1 16:04:17 EDT 2003
Heiko Wundram <heikowu at ceosg.de> wrote:
>Simplest way I use to implement "interfaces":
>
>class IEditor(object):
> def getSelection(self,start,end):
> raise NotImplementedError("Implement this for IEditor")
etc...
How about an Interface metaclass that replaces any class methods with an
appropriate exception-raiser. It would save a little typing, e.g.
class IEditor():
__metaclass__ = Interface
def GetSelection(self, start, end): pass
def SetSelection(self, start, end, data): pass
...and so on.
--
brendan DOT hahn AT hp DOT com
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