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Re: Is there any advantage or disadvantage to using sets over list comps to ensure a list of unique entries?

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On Jun 21, 12:43 am, deathweaselx86 <deathwea...@gmail.com> wrote:
> Howdy guys, I am new.
>
> I've been converting lists to sets, then back to lists again to get
> unique lists.

Maybe you should consider whether its best to work with sets only and
not use lists at all.
This needs to be said because:
1. Most intros to python show lists (and tuples which is almost the
same) and hardly mention sets
2. Until recent versions python did not have sets

The basic question to ask yourself is: Is order/repetition
significant?
If not you want a set.

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Thread

Is there any advantage or disadvantage to using sets over list comps to ensure a list of unique entries? deathweaselx86 <deathweasel@gmail.com> - 2011-06-20 12:43 -0700
  Re: Is there any advantage or disadvantage to using sets over list comps to ensure a list of unique entries? Ian Kelly <ian.g.kelly@gmail.com> - 2011-06-20 13:59 -0600
  Re: Is there any advantage or disadvantage to using sets over list comps to ensure a list of unique entries? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-06-21 01:10 +0000
    Re: Is there any advantage or disadvantage to using sets over list comps to ensure a list of unique entries? Ethan Furman <ethan@stoneleaf.us> - 2011-06-20 20:29 -0700
  Re: Is there any advantage or disadvantage to using sets over list comps to ensure a list of unique entries? rusi <rustompmody@gmail.com> - 2011-06-20 20:59 -0700
  Re: Is there any advantage or disadvantage to using sets over list comps to ensure a list of unique entries? Raymond Hettinger <python@rcn.com> - 2011-06-25 01:05 -0700

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