AlkantarClanX12
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#
# Copyright (c) 2001--2016 Red Hat, Inc.
#
# This software is licensed to you under the GNU General Public License,
# version 2 (GPLv2). There is NO WARRANTY for this software, express or
# implied, including the implied warranties of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. You should have received a copy of GPLv2
# along with this software; if not, see
# http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
#
# Red Hat trademarks are not licensed under GPLv2. No permission is
# granted to use or replicate Red Hat trademarks that are incorporated
# in this software or its documentation.
#
#
# This file implements a case insensitive dictionary on top of the
# UserDict standard python class
#
try: # python2
from UserDict import UserDict
from types import StringType
except ImportError: # python3
from collections import UserDict
StringType = bytes
from functools import reduce
# A dictionary with case insensitive keys
class UserDictCase(UserDict):
def __init__(self, data = None):
self.kcase = {}
UserDict.__init__(self, data)
def __lower_string(self, key):
""" Return the lower() of key if it is a string. """
if isinstance(key, StringType):
return key.lower()
else:
return key
# some methods used to make the class work as a dictionary
def __setitem__(self, key, value):
lkey = self.__lower_string(key)
self.data[lkey] = value
self.kcase[lkey] = key
def __getitem__(self, key):
key = self.__lower_string(key)
return self.data[key]
get = __getitem__
def __delitem__(self, key):
key = self.__lower_string(key)
del self.data[key]
del self.kcase[key]
def __contains__(self, key):
key = self.__lower_string(key)
return key in self.data
def keys(self):
return self.kcase.values()
def items(self):
return self.get_hash().items()
def has_key(self, key):
# obsoleted, left for compatibility with older python
return key in self
def clear(self):
self.data.clear()
self.kcase.clear()
# return this data as a real hash
def get_hash(self):
return reduce(lambda a, t, hc=self.kcase:
a.update({ hc[t[0]] : t[1]}) or a, self.data.items(), {})
# return the data for marshalling
def __getstate__(self):
return self.get_hash()
# we need a setstate because of the __getstate__ presence screws up deepcopy
def __setstate__(self, state):
self.__init__(state)
# get a dictionary out of this instance ({}.update doesn't get instances)
def dict(self):
return self.get_hash()
def update(self, dict):
for (k, v) in dict.items():
self[k] = v
# Expose an iterator. This would normally fail if there is no iter()
# function defined - but __iter__ will never be called on python 1.5.2
def __iter__(self):
return iter(self.data)