Is there an alternative result for Python unit tests, other than a Pass or Fail?

I'm writing unit tests that have a database dependency (so technically they're functional tests). Often these tests not only rely on the database to be live and functional, but they can also rely on certain data to be available.

For example, in one test I might query the database to retrieve sample data that I am going to use to test the update or delete functionality. If data doesn't already exist, then this isn't exactly a failure in this context. I'm only concerned about the pass/fail status of the update or delete, and in this situation we didn't even get far enough to test it. So I don't want to give a false positive or false negative.

Is there an elegant way to have the unit test return a 3rd possible result? Such as a warning?