Assigning labels to issues not possible

[rolandgeider]

It's not possible to assign labels to issues. Regardless of what is passed to add_to_issue for the labels, there is always a ValueError thrown:

ValueError: Unable to encode lists with elements that are not 2-tuples.

Also, the example in the documentation is wrong, there are non-keyword arguments after keyword arguments.

[andreagrandi]

I can confirm this problem. Do you think you're going to fix this? Also, I noticed that development seems to be stopped at the moment. Can you confirm this? Thanks.

[raprasad]

Also just ran into this...

[rjmackay]

I had similar issue with labels.replace_all() got ValueError: too many values to unpack