Py2.3: Feedback on Sets

John Smith JohnSmith at obfs.com
Sun Aug 17 19:16:45 CEST 2003


Suggestion: How about adding  Set.isProperSubset() and
Set.isProperSuperset()?

Thanks for this wonderful module. I've been working on data mining and
machine
learning area using Python. Set operations are very important to me.

"Raymond Hettinger" <vze4rx4y at verizon.net> wrote in message
news:Jp%Za.256$jw4.238 at nwrdny03.gnilink.net...
> I've gotten lots of feedback on the itertools module
> but have not heard a peep about the new sets module.
>
> * Are you overjoyed/outraged by the choice of | and &
>    as set operators (instead of + and *)?
>
> * Is the support for sets of sets necessary for your work
>    and, if so, then is the implementation sufficiently
>    powerful?
>
> * Is there a compelling need for additional set methods like
>    Set.powerset() and Set.isdisjoint(s) or are the current
>    offerings sufficient?
>
> * Does the performance meet your expectations?
>
> * Do you care that sets can only contain hashable elements?
>
> * How about the design constraint that the argument to most
>    set methods must be another Set (as opposed to any iterable)?
>
> * Are the docs clear?  Can you suggest improvements?
>
> * Are sets helpful in your daily work or does the need arise
>    only rarely?
>
>
> User feedback is essential to determining the future direction
> of sets (whether it will be implemented in C, change API,
> and/or be given supporting language syntax).
>
>
> Raymond Hettinger
>
>
>
>






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