Hi Tom:

In message <1658180366.64.0.166927370587.issue2551222@roundup.psfhosted.org>,
Tom Ekberg writes:
>I was updating my config.ini moving from 2.1 to 2.2. I noticed that the line 
>
># Available backends: anydbm, sqlite
>
>near line 572 was missing databases.
>
>I know that mysql and postgresql are available, but are not shown
>in this list. I tried to follow the code but got lost, otherwise
>I'd suggest a fix.

Are you sure that your virtual environment has psycopg2 and MySQLdb
installed? If the import of those packages fails, they won't show up
when the config file is created.

What happens if you fire up the python in your virtual env and run:

  import psycopg2

or 
  import MySQLdb
?

-- rouilj