Author rhettinger
Recipients Julian, dabeaz, doughellmann, gvanrossum, ncoghlan, nedbat, r.david.murray, rhettinger, skrah, twouters
Date 2013-06-04.03:34:18
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Message-id <1370316859.0.0.0897383377164.issue18111@psf.upfronthosting.co.za>
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Guido, this is your language.  What would you like to do?

The OP wants a default argument on min() and max() so he won't have to use an "except ValueError" for non-sequence iterables that are potentially empty.

At first, I thought the functions were already as complex as we would want to get, but several proponents have emerged, so I'm stepping aside.

The proposed patch would allow:
   max(iterable, key=somefunc, default=sentinel)
and would return sentinel_value when len(list(iterable))==0.

It would not allow:
   max(*iterable, key=somefunc, default=sentinel_value)
where s is an empty iterable.
History
Date User Action Args
2013-06-04 03:34:19rhettingersetrecipients: + rhettinger, gvanrossum, twouters, ncoghlan, nedbat, doughellmann, r.david.murray, skrah, dabeaz, Julian
2013-06-04 03:34:19rhettingersetmessageid: <1370316859.0.0.0897383377164.issue18111@psf.upfronthosting.co.za>
2013-06-04 03:34:18rhettingerlinkissue18111 messages
2013-06-04 03:34:18rhettingercreate