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[Python-Dev] Comparison operators (> < >= <=) for collections.Counter

[Python-Dev] Comparison operators (> < >= <=) for collections.Counter [Python-Dev] Comparison operators (> < >= <=) for collections.CounterKerrick Staley kerrick at kerrickstaley.com
Tue Sep 8 04:06:17 CEST 2015
I noticed that collections.Counter, unlike set, doesn't support the ordered
comparison operators (> < >= <=). I'd like to propose implementing these
operators in an analogous fashion to set: counter1 >= counter2 if counter1
contains at least as many of every key as counter2 does. Cases where
counter1 doesn't have a key and counter2 has a negative amount of that key
would still count as >=. counter1 > counter2 when counter1 >= counter2 and
counter1 != counter2.

Does this sound reasonable? If so I'll write up and submit a patch.

- Kerrick
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