Re: ZTK 2.0: Deprecate zope.sequencesort
Tres Seaver <[email protected]>
| Newsgroups | gmane.comp.web.zope.devel |
|---|---|
| Message-ID | <[email protected]> |
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 02/28/2013 01:04 PM, Stephan Richter wrote: > On Thursday, February 28, 2013 11:32:26 AM Tres Seaver wrote: >>> Thoughts? >> >> I'm generally in favor of shrinking the ZTK, but just for >> discussion's sake: emulating 'cmp' for objects which have rich >> comparison semantics isn't that difficult:: >> >> def _faux_cmp(lhs, rhs): return int(rhs < lhs) - int(lhs < rhs) > > Well, that is the obvious implementation of cmp(), but that's not the > point of the package. The package provides a callable class that > represents a cmp() function. The problem is that it is not just > creating some keys and calls cmp() on it. I could not find out a way > to create a single key. The main export of the package is the 'sort' function, which takes a sequence, per-column sort specs (key/attr name, sort function, direction), and optional extra data (e.g., the DTML namespace) and a flag indicating whether to use key or attribute lookup. The 'SortBy' class is really just an implementation detail of that API. > I guess the right way to port the package is to implement a sort API. I have ported it to Python 3.2 and 3.3 and released a 4.0.0 version. Tres. - -- =================================================================== Tres Seaver +1 540-429-0999 [email protected] Palladion Software "Excellence by Design" http://palladion.com -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with undefined - http://www.enigmail.net/ iEYEARECAAYFAlEvuFEACgkQ+gerLs4ltQ7+0wCg1gdpKIzx1Q1lvS0xVWAhSRIM wPsAniwipqErV4yMTkRDr5GxBz6GJfzW =6SHn -----END PGP SIGNATURE----- _______________________________________________ Zope-Dev maillist - [email protected] 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 )