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Does anybody have a good explanation why Spanish locale sort order differs between CentOs 6.9 and Ubuntu 18.04:

On CentOS release 6.9:

$ export LC_COLLATE=es_ES.utf8
$ echo "niño ninja ninus" | tr ' ' '\n' | sort
ninja
niño
ninus

And on Ubuntu 18.04

$ export LC_COLLATE=es_ES.utf8
$ echo "niño ninja ninus" | tr ' ' '\n' | sort
ninja
ninus
niño

So in Centos6.9 "niño" is sorted before "ninus" while Ubuntu 18.04 reverses that order.

Improve this question
6
  • Can not reproduce. Commented Feb 19, 2021 at 16:12
  • Was due to a difference in underlying operating systems (experiments were run in different containers) Commented Feb 19, 2021 at 17:06
  • The original question was why the sort order differs between Py2 and Py3. I completely rephrased the question to reflect that the difference comes from the underlying OS. Commented Feb 23, 2021 at 18:07
  • It looks like CentOS uses an accent-insensitive collation while Ubuntu is accent-sensitive. Commented Feb 23, 2021 at 18:24
  • Shouldn't the locale setting determine whether the collation is accent sensitive or not? Commented Feb 23, 2021 at 20:16
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