Big O of sets

Josiah Carlson jcarlson at nospam.uci.edu
Fri Feb 6 06:04:55 CET 2004


Tony Meyer wrote:

> Alex Martelli's excellent Nutshell book has a handy little section outlining
> the Big O notation of various common Python operations (x in dict and
> list.append(x), for example).  Can anyone point me to equivalents for the
> Python 2.3 sets.[Immutable]Set operations?
> 
> I know that I could figure these myself from either timing or reading the
> code, but it'd be nice if someone's already done this :)  Either googling
> can't find it, or (more likely), I'm not thinking of the right search terms.
> 
> In particular, I'm interested in intersection, union and > (proper subset),
> and of ImmutableSets, rather than Sets.
> 
> Thanks!
> 
> =Tony Meyer

Tony,

Read the source.

  - Josiah



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