[Python-Dev] LinkedHashSet/LinkedHashMap equivalents
jbauer at rubic.com
Thu Mar 10 05:33:12 CET 2005
Thomas Heller <theller at python.net> wrote:
> Steven Bethard <steven.bethard at gmail.com> writes:
>> What use do you have for it other than filtering
>> duplicates from a list while retaining order?
> If this were the only use case, you are right. I cannot
> remember the use case I once had right now, and probably
> the code has been rewritten anyway. But I assume use
> cases exist, otherwise there weren't so many recipes
> for the ordered dictionary.
I'm not specifically lobbying for its inclusion in
stdlib, but I often find an ordered dict useful when I
want both ordered and random access, e.g. situations:
- database table fields/attributes
- drop down field selectors
In both cases, I could get by with other techniques, but I
would use stdlib ordered dicts if they were available.
I also prefer the term "ordered dict" to LinkedHashXXX.
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