Case insensitive Dictionary?

Dale Strickland-Clark dale at
Fri Sep 22 00:31:14 CEST 2000

Alex <cut_me_out at> wrote:

>> Can I do a case-insensitve has_key test or lookup on a dictionary
>> without taking a copy of the keys (which would kind of slow things
>> down a lot!) ?
>Not really.  Your best bet is probably to write a class that keeps the
>keys in a case-insensitive form.  E.g.
>from UserDict import UserDict
>class MyDict(UserDict):
>    def __setitem__(self, key, value):
>        UserDict.__setitem__(self, key.lower(), value)
>    def __getitem__(self, key):
>        return UserDict.__getitem__(self, key.lower())
>This is untested, and uses Python2.0, but hopefully it gets the general
>idea across.

You're working well tonight!
I'll think on that one.

Dale Strickland-Clark
Out-Think Ltd
Business Technology Consultants

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