-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Fabio Tranchitella wrote: > Happy New Year to everybody, > > I'm working to isolate a core set of ZTK packages which are independent > from Zope and reusable outside the Zope community. One of them is > zope.security, which can be used (and it is useful, indeed) with non-zope > frameworks too. > > While doing it, I'm trying to remove dependencies which are zope-specific, > to minimize the overhead for developers who are using the whole zope stack > (like me :)).
I have such a subset in mind myself, which I call the "bicycle seat repair kit": - zope.interface - zope.coponent - zope.configuration - their dependencies. > zope.security depends on zope.exceptions because it imports this symbol in > zope.security.checker: > > from zope.exceptions import DuplicationError > > zope.exceptions defines DuplicationError as: > > class IDuplicationError(Interface): > pass > > class DuplicationError(Exception): > """A duplicate registration was attempted""" > implements(IDuplicationError) > > The zope.exceptions package contains "exception interfaces and > implementations which are so general purpose that they don't belong in Zope > application-specific packages.", as stated by the README. > > I propose to make the remove the dependency between zope.security and > zope.exceptions with a conditional import: > > * if zope.exceptions is available, use DuplicationError from it; > > * if it is not available, define a zope.security-specific DuplicationError > (which inherits from ValueError, maybe). > > As using zope.exceptions only make sense if you are checking the exception > type importing its interface from the zope.exceptions package, and thus > depending on it, I see no risk in such a change. > > Thoughts? Comments? +1. I wouldn't have thought zope.security useful elsewhere, but I take it you are using it in applications which don't use the rest of the stack. Tres. - -- =================================================================== Tres Seaver +1 540-429-0999 tsea...@palladion.com Palladion Software "Excellence by Design" http://palladion.com -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAktD2N8ACgkQ+gerLs4ltQ7G0wCfVu0KZAZ5xzUXarXUO2nT6bIm LXQAoIYxT6lKDGgGeCq/ec7Xh+X+4WBo =dErh -----END PGP SIGNATURE----- _______________________________________________ Zope-Dev maillist - Zope-Dev@zope.org https://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - https://mail.zope.org/mailman/listinfo/zope-announce https://mail.zope.org/mailman/listinfo/zope )