[Python-ideas] [Python-Dev] minmax() function returning (minimum, maximum) tuple of a sequence
rrr at ronadam.com
Fri Oct 15 22:00:53 CEST 2010
On 10/15/2010 02:04 PM, Arnaud Delobelle wrote:
>> Because it would always interpret a list of values as a single item.
>> This function looks at args and if its a single value without an "__iter__"
>> method, it passes it to min as min([value], **kwds) instead of min(value,
> But there are many iterable objects which are also comparable (hence
> it makes sense to consider their min/max), for example strings.
> So we get:
> xmin("foo", "bar", "baz") == "bar"
> xmin("foo", "bar") == "bar"
> xmin("foo") == "f"
> This will create havoc in your running min routine.
> (Notice the same will hold for min() but at least you know that min(x)
> considers x as an iterable and complains if it isn't)
There doesn't seem to be a way to generalize min/max in a way to handle all
the cases without knowing the context.
So in a coroutine version of Tals class, you would need to pass a hint
along with the value.
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