Sorry, cc'ed the wrong list. :-( ------- Forwarded Message Date: Wed, 11 Dec 2002 10:29:12 -0500 From: Guido van Rossum <guido@python.org> To: jeremy@zope.com (Jeremy Hylton) cc: zope3-dev@zope.org Subject: Re: [ZODB-Dev] Fwd: [Zope3-dev] directory hierarchy proposal (Martijn Faassen)

SA> Can they be methods on objects, rather than functions in a SA> module?

Just what I asked Tim :-). There are as many as six functions -- difference, union, intersection, weightedUnion, weightedIntersection, and multiunion. The functions operate on sets; they accept any of XY family of objects. So it's not obvious what they would be methods of. Each object -- Set, TreeSet, Bucket, BTree -- could get a copy of the code, but that seems a little silly.

Perhaps it could be defined on a common base class? <duck> - --Guido van Rossum (home page: http://www.python.org/~guido/) ------- End of Forwarded Message