getdefaultlocale() deprecated in Python 3.11

[pesekon2]

Describe the bug

Initializing GRASS with Python 3.11, I am getting the following warning messages:

/grass/bin.x86_64-pc-linux-gnu/grass:69: DeprecationWarning: Use setlocale(), getencoding() and getlocale() instead
  ENCODING = locale.getdefaultlocale()[1]
/grass/bin.x86_64-pc-linux-gnu/grass:1421: DeprecationWarning: Use setlocale(), getencoding() and getlocale() instead
  language, encoding = locale.getdefaultlocale()

Not annoying so much, but it could cause us some problems once the function will be fully removed from locale.

Possible solution

Change to getlocale(). Will dive deeper to find out if it can cause some problems.

[pesekon2]

See a discussion touching this topic here

[neteler]

This is meanwhile a blocker in Fedora 37:
https://bugzilla.redhat.com/show_bug.cgi?id=2126608

[pesekon2]

The blocker is actually connected to another issue, #2507.

But both of them are caused by Python 3.11, so they are related.

Theoretically, PR #2550 linked to this shouldn't really cause a problem in Windows. Hence, as this is a blocker (not only for Fedora, it is a blocker for anything with Python 3.11), it might be easier to accept the fixes (#2550 and #2539) and then see if somebody reports any issue on Windows?

[neteler]

it might be easier to accept the fixes (#2550 and #2539) and then see if somebody reports any issue on Windows?

Yes, I agree. Will you merge it?

[pesekon2]

Will you merge it?

Done. Python 3.11-connected issues should be solved by #2550 and #2539