FYI: New revision of the Zope Public License

Karsten M. Self kmself at
Sun Nov 25 23:25:23 UTC 2001

on Thu, Feb 15, 2001 at 03:38:05PM -0500, Paul Everitt (paul at wrote:

Paul should check his system clock.

> Hello to all.  We at Zope Corporation have finished a final draft of a 
> major update to the Zope Public License:
> This license was derived from the previous ZPL 1.0 (and 1.1) license,
> which received an OSI stamp of approval almost two years ago, before
> the OSI started this more official process.  The original ZPL was very
> close in spirit to the Apache license.
> The major goal of the license change has been to become GPL
> compatible.  Thanks to the work and cooperation between Hadar Pedhazur
> (our board chairman) and Richard Stallman, we're pleased to say that
> Richard has certified this license text as being GPL compatible.
> Please feel free to mention any of the names discussed herein (my
> name, Hadar's name, Zope Corporation, etc.) on the license-discuss
> mailing list.  However, please make sure that any replies to us cc the
> zope-license at mailing list.  (This is a private alias shared
> by Hadar and me.)

Looks reasonable.  Should be OSD and GPL compliant.

Highlights in reverse order.

#5 is, as noted, a GPL quote.

#4 is essentially a no-op clarification.  It doesn't prohibit any
behavior which would otherwise be allowed, and I don't see it
conflicting with the OSD or GPL.

#3 is similar to #4, and looks heavily BSD influenced.


Karsten M. Self <kmself at>
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