Your logic is rather.. involved. If you want to test if at least one of those variables is not None, then use any():
debug.assert(any(v is not None for v in (data, id, time, group)))any() iterates over the v is not None for v in (data, id, time, group) generator expression and returns True the moment it encounters a True result. This means that if data is not None, then the other 3 values are not tested. If, however, all 4 values are None then any() returns False and the assertion test fails.
I don't know what framework you are using to test assertions, I assumed there would be a .assert() method.
When catching an assertion failure exception, I would not catch Exception, that's way too broad and will mask bugs. A test framework will raise specific exceptions to signal assertion failure, such as the built in AssertionError. Catch that specific exception instead, if you must.