On 07/17/2017 06:34 PM, Steven D'Aprano wrote:
On Mon, Jul 17, 2017 at 05:01:58PM -0700, Ethan Furman wrote:

Guido has decreed that namedtuple shall be reimplemented with speed in mind.

I haven't timed it (I'm hoping somebody will volunteer to be the bench mark
guru), I'll offer my NamedTuple implementation from my aenum [1] library.

With respect Ethan, if you're going to offer up NamedTuple as a faster
version of namedtuple, you should at least do a quick proof of
concept to demonstrate that it actually *is* faster.

I suck at benchmarking, so thank you for providing those quick-and-dirty hints.

Full bench marking
can wait, but you should be able to do at least something like:


python3 -m timeit --setup "from collections import namedtuple" \
     "K = namedtuple('K', 'a b c')"

546 usec

versus

python3 -m timeit --setup "from aenum import NamedTuple" \
     "K = NamedTuple('K', 'a b c')"

250 usec


So it seems to be faster!  :)

It is also namedtuple compatible, except for the _source attribute.

--
~Ethan~
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