[Python-Dev] PEP 450 adding statistics module (original) (raw)

Paul Colomiets paul at colomiets.name
Mon Sep 9 09:51:31 CEST 2013

Hi Guido,

On Sun, Sep 8, 2013 at 8:32 PM, Guido van Rossum <guido at python.org> wrote:

Going over the open issues:

- Parallel arrays or arrays of tuples? I think the API should require an array of tuples. It is trivial to zip up parallel arrays to the required format, while if you have an array of tuples, extracting the parallel arrays is slightly more cumbersome. Also for manipulating of the raw data, an array of tuples makes it easier to do insertions or removals without worrying about losing the correspondence between the arrays.

I think there is a big reason to use parallel arrays that might be overlooked. You can feed an array.array('f') to the function, which may save a lot of memory.

-- Paul

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