[Python-ideas] Proposal for extending the collections module - bags / multisets, ordered sets / unique lists

[Steven D'Aprano]

On Sun, 19 Jul 2009 06:54:39 am Michael Lenzen wrote:

> I don't understand how this code becomes unreadable.
>
>   > hand = collection(ordered=False, unique=False)
>   > for i in range(5):
>   >     hand.add(deck.pop_card())

Do you expect that code to work if the caller had used "mutable=False" 
in the call to collection()? 


>   > for card in cards:
>   >     if hand.count(card) == 2:
>   >         print('You have a pair.')

Why would a class with unique=True have a count() method? 



-- 
Steven D'Aprano