[Bug libstdc++/108212] [13 Regression] pretty printers don't work with Python 2 due to imports for chrono

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108212

--- Comment #1 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jonathan Wakely <redi@gcc.gnu.org>:

https://gcc.gnu.org/g:80ff207da6d8784e227eb93f75c4ac5a300c8420

commit r13-5034-g80ff207da6d8784e227eb93f75c4ac5a300c8420
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Thu Jan 5 13:41:21 2023 +0000

    libstdc++: Fix <chrono> printers for Python 2 [PR108212]

    The datetime.timezone.utc singleton doesn't exist in Python 2, but we
    can create it ourselves by deriving from datetime.tzinfo.

    libstdc++-v3/ChangeLog:

            PR libstdc++/108212
            * python/libstdcxx/v6/printers.py (_utc_timezone): New global
            variable.
            (StdChronoTimePointPrinter::to_string): Use it.