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utils/const.py: fix ident

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Signed-off-by: Nicolas Sebrecht <nicolas.s-dev@laposte.net>
This commit is contained in:
Nicolas Sebrecht 2014-12-30 01:05:20 +01:00
parent 532278b4dd
commit a35c432671
1 changed files with 22 additions and 25 deletions
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offlineimap/utils/const.py
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@ -1,40 +1,37 @@
# Copyright 2013 Eygene A. Ryabinkin.
# Copyright (C) 2013-2014 Eygene A. Ryabinkin and contributors
#
# Collection of classes that implement const-like behaviour
# for various objects.
import copy
class ConstProxy (object):
"""
Implements read-only access to a given object
that can be attached to each instance only once.
class ConstProxy(object):
"""Implements read-only access to a given object
that can be attached to each instance only once."""
"""
def __init__ (self):
self.__dict__['__source'] = None
def __init__(self):
self.__dict__['__source'] = None
def __getattr__ (self, name):
src = self.__dict__['__source']
if src == None:
raise ValueError ("using non-initialized ConstProxy() object")
return copy.deepcopy (getattr (src, name))
def __getattr__(self, name):
src = self.__dict__['__source']
if src == None:
raise ValueError("using non-initialized ConstProxy() object")
return copy.deepcopy(getattr(src, name))
def __setattr__ (self, name, value):
raise AttributeError ("tried to set '%s' to '%s' for constant object" % \
(name, value))
def __setattr__(self, name, value):
raise AttributeError("tried to set '%s' to '%s' for constant object"% \
(name, value))
def __delattr__ (self, name):
raise RuntimeError ("tried to delete field '%s' from constant object" % \
(name))
def __delattr__(self, name):
raise RuntimeError("tried to delete field '%s' from constant object"% \
(name))
def set_source (self, source):
""" Sets source object for this instance. """
if (self.__dict__['__source'] != None):
raise ValueError ("source object is already set")
self.__dict__['__source'] = source
def set_source(self, source):
""" Sets source object for this instance. """
if (self.__dict__['__source'] != None):
raise ValueError("source object is already set")
self.__dict__['__source'] = source