I have a requirement for using caseless dict. I searched the web for
many different implementations and found one snippet which was
implemented in minimal and useful way.
#############
import UserDict
class CaseInsensitiveDict(dict, UserDict.DictMixin):
def __init__(self, *args, **kwargs):
self.orig = {}
super(CaseInsensitiveDict, self).__init__(*args, **kwargs)
def items(self):
keys = dict.keys(self)
values = dict.values(self)
return [(self.orig[k],v) for k in keys for v in values]
def __setitem__(self, k, v):
hash_val = hash(k.lower())
self.orig[hash_val] = k
dict.__setitem__(self, hash_val, v)
def __getitem__(self, k):
return dict.__getitem__(self, hash(k.lower()))
obj = CaseInsensitiveDict()
obj['Name'] = 'senthil'
print obj
print obj.items()
obj1 = {}
obj1['Name'] = 'senthil'
print obj1
print obj1.items()
###########
[EMAIL PROTECTED] python]$ python cid1.py
{15034981: 'senthil'}
[('Name', 'senthil')]
{'Name': 'senthil'}
[('Name', 'senthil')]
---
The difference between the Caselessdict and {} is that when called as
the object, the Caselessdict() is giving me the internal
representation.
obj = CaseInsensitiveDict()
obj['Name'] = 'senthil'
print obj
gives: {15034981: 'senthil'}
obj1 = {}
obj1['Name'] = 'senthil'
print obj1
Correctly gives {'Name': 'senthil'}
What changes should I make to CaseInsensitiveDict ( written above), so
that its instance gives the actual dictionary instead of its internal
representation.
Constructing a dictionary and returning from __init__ method did not
work.
TIA,
Senthil
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