On 25/03/2014 01:45, Steven D'Aprano wrote:
(1) People who just want to get the job done, without learning a bunch of
theory, *won't care* how their sort key function is written. They're
looking for a recipe that they can copy and paste, and whether you write
it like this:
data.sort(key=lambda item: item[1])
or like this:
from operator import itemgetter
data.sort(key=itemgetter(1))
or like this:
def sort_key(item):
return item[1]
data.sort(key=sort_key)
*they won't care*. In fact, they'll probably prefer the first version,
with lambda, because it is fewer lines to copy.
I'm firmly in this camp, practicality beats purity and all that. I've
used the first and second versions shown above as they happened to be in
the recipes I was aquiring, I wouldn't contemplate the third. That's
just my mindset, which is what I love about Python, by pure luck it fits
me like made to measure clothing.
--
My fellow Pythonistas, ask not what our language can do for you, ask
what you can do for our language.
Mark Lawrence
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