Run tests with warnings as error
In order to catch earlier future issues, I think it will be good that the monthly scheduled pipeline run with PYTHONWARNINGS="error".
But for that we need to fix all the warnings.
The warnings from third-libraries will be fixed upstream and meanwhile we will ignore them like this:
PYTHONWARNINGS="error,default:::genshi.compat,default:::genshi.template.eval,default:::genshi.template.astutil,default:::passlib.utils,default:::zeep.utils,default:::braintree.dispute,default:::braintree.search,default:::passlib.handlers.argon2,default:::simpleeval".
Edited by Udo Spallek