Fresh build on linux gets error: ModuleNotFoundError: No module named 'aiohue'

I just created a new Home Assistant running in a venv on an older laptop running Xubuntu 18.04. I moved the .homeassistant from my running machine to the new install before running hass the first time. I was running 0.64.0 on the original system and the new system seemed fine. Then I upgraded to the latest version of hass 0.69.0 (I think). At that point my hue lights were missing. I changed to the newer hue format in configuration.yaml. Note: the column alignment in my inline code below is different from what I entered and I’m not sure why. I used backtick,backtick,backtickyaml to encode it.

hue:
   bridges:
      - host: xxx.yyy.zzz.XXX

Then I had to rerun the hue configurator. When I rebooted and ran hass I got the message ModuleNotFoundError: No module named ‘aiohue’

FYI: my home assistant user is a member of the dialout group

Any suggestions on how to proceed, or where I messed up?