Function leaf_generator

Lib/test/test_exception_group.py:565–577

(exc, tbs=None)

def leaf_generator(exc, tbs=None):
    if tbs is None:
        tbs = []
    tbs.append(exc.__traceback__)
    if isinstance(exc, BaseExceptionGroup):
        for e in exc.exceptions:
            yield from leaf_generator(e, tbs)
    else:
        # exc is a leaf exception and its traceback
        # is the concatenation of the traceback
        # segments in tbs
        yield exc, tbs
    tbs.pop()


class LeafGeneratorTest(unittest.TestCase):