[Python-Dev] Declaring setters with getters (original) (raw)

Fred Drake fdrake at acm.org
Fri Nov 2 03:53:56 CET 2007

On Nov 1, 2007, at 9:18 PM, Fred Drake wrote:

Thanks! Of all the proposals that have been presented, I still like that the best.

I've attached a quick hack of an implementation, just to play with it
and see how it feels. Here's an example use:

from property import property

class Base(object):

 @property
 def attribute(self):
     print("Base.attribute (getter)")
     return 42

 @property.get(attribute)
 def rwattribute(self):
     print("Base.rwattribute (getter)")
     return self.attribute * 2

 @property.set(rwattribute)
 def rwattribute(self, value):
     print("Base.rwattribute (setter)")
     self.saved = value

class Derived(Base):

 @property.get(Base.attribute)
 def roattribute(self):
     print("Derived.roattribute (getter)")
     return self.attribute / 2

-Fred

-- Fred Drake

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