just add the values to the entries you return: entry['npo_language'] = npo_language for example

Ok thanks, for that hint.

I incorporated that change in my updated commit, and now return several npo_* values;

How can I now make sure that e.g. the value of npo_language gets passed onto tvdb_lookup for the language-dependent lookup?

Also, should I add any tests for these changes? And is the coding-style ok, or should I do some things in a different way?

add a language attribute to the entry, in addition to npo_language. i'll slightly modify thetvdb_lookup so it'll be able to accept that from the entry.
About tests, the answer is always yes 😄

ok thanks, I now added the language attribute to to it.

I also started a test-class, but having some trouble, because there was not one yet for npo_watchlist at all.

Would you be able to help me out a bit?
Because normally npo_watchlist logs in to a npo.nl account, but in this situation that does not apply, so I just want a mock that it can compare to Als de de dijken breken series information. But I have no clue how to achieve this :-/

if you could set up a real account for flexget and use that it would be ideal

@liiight I set-up the account:

email: chetrutrok@throwam.com
pass: Fl3xg3t

I added Als de dijken breken to its favourites (so that are the series indexed by npo_watchlist)

Update: I added the credentials also to the test file

Added some tests to it, thank you @liiight for your help with that! It should be ok to merge at this point

np, thank you for contributing. update wiki if relevant