On Sat, 22 Aug 2009 08:09:52 +0100, Jonathan Fine wrote:
> Jonathan Gardner wrote:
>> On Aug 21, 9:09 am, alex23 <wuwe...@gmail.com> wrote:
>>> On Aug 21, 11:36 pm, Jonathan Fine <jf...@pytex.org> wrote:
>>>
>>> class ColourThing(object):
>>> @apply
>>> def rgb():
>>> def fset(self, rgb):
>>> self.r, self.g, self.b = rgb
>>> def fget(self):
>>> return (self.r, self.g, self.b)
>>> return property(**locals())
>>>
>>>
>> This is brilliant. I am going to use this more often. I've all but
>> given up on property() since defining "get_foo", "get_bar", etc... has
>> been a pain and polluted the namespace.
>
>
> I think we can do better, with a little work. And also solve the
> problem that 'apply' is no longer a builtin in Python3.
There's a standard idiom for that, using the property() built-in, for
Python 2.6 or better.
Here's an example including a getter, setter, deleter and doc string,
with no namespace pollution, imports, or helper functions or deprecated
built-ins:
class ColourThing(object):
@property
def rgb(self):
"""Get and set the (red, green, blue) colours."""
return (self.r, self.g, self.b)
@rgb.setter
def rgb(self, rgb):
self.r, self.g, self.b = rgb
@rgb.deleter
def rgb(self):
del self.r, self.g, self.b
--
Steven
--
http://mail.python.org/mailman/listinfo/python-list
