subTest(msg=None, **params) Return a context manager which executes the enclosed code block as a subtest. msg and params

class unittest.mock.NonCallableMock(spec=None, wraps=None, name=None, spec_set=None, **kwargs) A non-callable version of Mock

class typing.AnyStr AnyStr is a type variable defined as AnyStr = TypeVar('AnyStr', str, bytes).

unittest.mock.mock_open(mock=None, read_data=None) A helper function to create a mock to replace the use of

class unittest.TextTestResult(stream, descriptions, verbosity) A concrete implementation of TestResult used by

test.support.run_unittest(*classes) Execute

class typing.Generator(Iterator[T_co], Generic[T_co, T_contra, V_co]) A generator can be annotated by the generic type