[Python-Dev] Definining properties - a use case for class decorators? (original) (raw)
Michele Simionato michele.simionato at gmail.com
Tue Oct 18 17:38:40 CEST 2005
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On 10/18/05, Antoine Pitrou <solipsis at pitrou.net> wrote:
Le mardi 18 octobre 2005 à 10:57 -0400, Barry Warsaw a écrit : Currently I never use properties, because it makes classes much less readable for the same kind of reasons as what Jim wrote.
Me too, I never use properties directly. However I have experimented with using helper functions to generate the properties:
_dic = {}
def makeproperty(x): def getx(self): return _dic[self, x] def setx(self, value): _dic[self, x] = value return property(getx, setx)
class C(object): x = makeproperty('x')
c = C() c.x = 1 print c.x
But in general I prefer to write a custom descriptor class, since it gives me much more control.
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