[Python-ideas] unittest.failureExeption(msg, data=None): add optional data kwarg to failureException() of unittest

Hi, what do you think about the idea to add an optional data kwarg to unittest.failureExeption()? Up to now a the exception class "failureException" does only get a message which is a string. I would like to log the failed Exceptions to a structured logging back end. Parsing the string message to extract the real value is possible, but somehow ugly and error prone. My high level use case: Have a system (maybe ELK-Stack) to investigate if a test failure was seen before. Doing this on strings could work, but I would like to keep the original (json serializable) values. What do you think? Thomas Güttler