[Python-Dev] [Python-checkins] r59947 - in python/trunk:Lib/test/test_structseq.py Misc/NEWS

[Guido van Rossum]

A use case for slicing was just found in zipfile.py:

date = "%d-%02d-%02d %02d:%02d:%02d" % zinfo.date_time[:6]

On Jan 14, 2008 3:28 PM, "Martin v. Löwis" <martin at v.loewis.de> wrote:
> Guido van Rossum wrote:
> > On Jan 14, 2008 2:19 PM, "Martin v. Löwis" <martin at v.loewis.de> wrote:
> >>> Correct. We don't need item access anymore. However the struct seq
> >>> should still be slice-able for functions like time.mktime().
> >> Can you please explain that? What application do you have in mind?
> >
> > Well, mktime() assumes its argument to be a tuple, and there are
> > plenty of places that either emulate its API (like calendar.timegm())
> > or provide a tuple for it. I wouldn't want to lose the ability to
> > manually construct a tuple to go into mktime() and friends.
>
> But what about the slicing? AFAICT, mktime doesn't support "short"
> tuples.
>
> mktime could continue to support tuples (including manually created
> ones), yet struct_time could still be a proper class, as long as mktime
> accepts that as well.
>
> Regards,
> Martin
>



-- 
--Guido van Rossum (home page: http://www.python.org/~guido/)