[Python-Dev] PEP 318 -- a couple use cases
Edward Loper
edloper at gradient.cis.upenn.edu
Thu Apr 1 14:57:09 EST 2004
> I'm wavering between 2 (perfectly acceptable) and 3 (somewhat
> hackish), only because I consider anything that uses sys._getframe()
> to be a danger to society unless proven innocent.
Would these be preferable:?
class C(object):
[property]
def x(self): return self.__x
[property_setter(x)]
def x(self, val): self.__x = val
[property_deleter(x)]
def x(self): del self.__x
and:
[generic(None, (int,int))]
def f(x,y): print 'two ints'
[generic(f, (float,float))]
def f(x,y): print 'two floats'
I.e., explicitly pass the old value in, rather than grabbing it from
sys._getframe.
Advantages:
- no sys._getframe magic
Disadvantages:
- you have to type the property/function name twice
- you have to do something special for the first def
- you can't easily rearrange the defs
-Edward
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