Just installed RC3 today and I noticed this arror in my syslog:
Jan 07 21:15:15 wendywx python3[4406]: /home/rayvenhaus/weewx-venv/lib/python3.11/site-packages/Cheetah/Compiler.py:1631: UserWarning:
Jan 07 21:15:15 wendywx python3[4406]: You don't have the C version of NameMapper installed! I'm disabling Cheetah's useStackFrames option as it is painfully slow with the Python version of NameMapper. You should get a copy of Cheetah with compiled C version of NameMapper.
Jan 07 21:15:15 wendywx python3[4406]: warnings.warn(
I done the staeps in the troubleshooting pip document and weewx is running just fine, it seems, however, not sure why that error is there and thought I'd share with with the dev team.