[Python-ideas] @setattr(obj, [name])

[Georg Brandl]

Am 06.06.2010 14:30, schrieb George Sakkis:
> It would be nice if setattr() was extended to allow usage as a decorator:
> 
> class Foo(object):
>     pass
> 
> @setattr(Foo)
> def bar(self):
>     print 'bar'
> 
> @setattr(Foo, 'baz')
> def get_baz(self):
>     print 'baz'
> 
>>>> Foo().bar()
> bar
>>>> Foo().baz()
> baz
> 
> Here's a pure Python implementation:
> 
> _setattr = setattr
> def setattr(obj, *args):
>     if len(args) >= 2:
>         return _setattr(obj, *args)
>     return lambda f: _setattr(obj, args[0] if args else f.__name__, f) or f
> 
> Thoughts ?

Since this is useful for functions only, I would not try to overload a
simple builtin, call it def_on() and put it in my utility module:

@def_on(Foo)
def method(self): pass

Georg

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