I am trying to read the list of open issues title which doesn't have label resolved. For that I am referring the API documentation (https://docs.gitlab.com/ee/api/issues.html) which mentions NOT but I couldn't able to get the NOT to work.
The following python script I have tried so far to read the list of issues now I am not able to find how to use NOT to filter the issue which doesn't have resolved label.
import gitlab
# private token or personal token authentication
gl = gitlab.Gitlab('https://example.com', private_token='XXXYYYZZZ')
# make an API request to create the gl.user object. This is mandatory if you
# use the username/password authentication.
gl.auth()
# list all the issues
issues = gl.issues.list(all=True,scope='all',state='opened',assignee_username='username')
for issue in issues:
print(issue.title)