I read the article on
http://www.python.org/download/releases/2.2/descrintro/#metaclasses
and started using autoprop.
But now I have a problem I can't seem to solve myself.
class autoprop(type):
def __init__(cls, name, bases, dict):
super(autoprop, cls).__init__(name, bases, dict)
props = {}
for name in dict.keys():
if name.startswith("_get_") or name.startswith("_set_"):
props[name[5:]] = 1
for name in props.keys():
fget = getattr(cls, "_get_%s" % name, None)
fset = getattr(cls, "_set_%s" % name, None)
setattr(cls, name, property(fget, fset))
class InvertedX:
__metaclass__ = autoprop
def _get_x(self):
return -self.__x
def _set_x(self, x):
self.__x = -x
a = InvertedX()
from copy import deepcopy
b = deepcopy(a)
The deepcopy gives an error inside copy.py of the python lib.
TypeError: descriptor '__reduce__' of 'object' object needs an
argument
Does anybody know how to solve this issue?
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