thx, but that failed on missing filters.
In any case, I stripped out al for loops and found the problem.
The deployer had commented out list items, but did not leave any.
So:
foobar:
- bar
- baz
- bor
was in the config as:
foobar:
- bar
- baz
- bor
which meant it wasn’t a list anymore, but null instead, and thus None in python…
Dick