[Zope-dev] ZTK 2.0: Deprecate zope.sequencesort

[Wichert Akkerman]

On Mar 1, 2013, at 19:06, "Suresh V." <suresh_vv at yahoo.com> wrote:

> On Friday 01 March 2013 02:15 PM, Lennart Regebro wrote:
>> I'm sorry, it's early in the morning. It is of course:
>> 
>>>      sorted(sorted(news_stories, key=lambda x: x.publication_date,
>>>                reverse=True), key=lambda x: x.category)
>> 
> 
> Won't the two sorteds step over each other?

No: since Python 2.2 sorting is guaranteed to be stable. See http://wiki.python.org/moin/HowTo/Sorting/#Sort_Stability_and_Complex_Sorts for more information.

Wichert.