eg = ExceptionGroup(
    "one",
    [
        TypeError(1),
        ExceptionGroup(
            "two",
             [TypeError(2), ValueError(3)]
        ),
        ExceptionGroup(
             "three",
              [OSError(4)]
        )
    ]
)
import traceback
traceback.print_exception(eg)
type_errors = eg.subgroup(lambda e: isinstance(e, TypeError))
traceback.print_exception(type_errors)