py3.11

Build the docs with Python 3.11.

>>> import sys
>>> sys.version_info
sys.version_info(major=3, minor=11, micro=0, releaselevel='final', serial=0)
>>> sys.version
'3.11.0 (main, Oct 26 2022, 10:47:23) [GCC 11.2.0]'
>>> # Use Structural Pattern Matching
>>> # https://www.python.org/dev/peps/pep-0636
>>> import random
>>> match random.choice(['test', 'quit', 'welcome']):
...   case 'test':
...     print('TEST')
...   case 'quit':
...     print('QUIT')
...   case 'welcome':
...     print('WELCOME')
... 
TEST
>>> # Build at
>>> import datetime
>>> datetime.datetime.utcnow()  # UTC
datetime.datetime(2022, 11, 8, 17, 36, 20, 556949)