The libxml2 package prior to version 2.9.12-6 was missing the compiled python modules. This has been fixed in 2.9.12-6, so the upgrade may need to overwrite any untracked pyc files created. If you get errors like these

``` libxml2: /usr/lib/python3.10/site-packages/pycache/drv_libxml2.cpython-310.opt-1.pyc exists in filesystem libxml2: /usr/lib/python3.10/site-packages/pycache/drv_libxml2.cpython-310.pyc exists in filesystem libxml2: /usr/lib/python3.10/site-packages/pycache/libxml2.cpython-310.opt-1.pyc exists in filesystem libxml2: /usr/lib/python3.10/site-packages/pycache/libxml2.cpython-310.pyc exists in filesystem

```

when updating, use

``` pacman -Syu --overwrite /usr/lib/python3.10/site-packages/pycache/*

```

to perform the upgrade.