On Tue, Feb 10, 2009 at 11:16 AM, Steve Holden <steve at holdenweb.com> wrote: > That's true, but the same *could* be said about the existing > optimizations for objects that define their own __contains__. > No, because there isn't a __not_contains__, so you cannot define the inverse operation differently. "not a in b" and "a not in b" have exactly the same effects. -- Daniel Stutzbach, Ph.D. President, Stutzbach Enterprises, LLC <http://stutzbachenterprises.com> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.python.org/pipermail/python-dev/attachments/20090210/02d569fc/attachment.htm>
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