Python unittest base class skipper

0-skip-unittest-base-class.py

def test_base(base_cls):
    class BaseClassSkipper(base_cls):
        @classmethod
        def setUpClass(cls):
            if cls is BaseClassSkipper:
                raise unittest.SkipTest("Base class")
            super().setUpClass()
    return BaseClassSkipper

1-example.py

@test_base
class TestsBase(TestCase):
    ...


class ConcreteTest(TestsBase):
    ...

Please post a full example