$ ./python Lib/test/test_dataclasses.py
...
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ERROR: test_classvar_module_level_import (__main__.TestStringAnnotations)
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Traceback (most recent call last):
  File "Lib/test/test_dataclasses.py", line 2716, in test_classvar_module_level_import
    from . import dataclass_module_1
ImportError: cannot import name 'dataclass_module_1' from '__main__' (Lib/test/test_dataclasses.py)

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FAIL: test_no_repr (__main__.TestRepr)
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Traceback (most recent call last):
  File "Lib/test/test_dataclasses.py", line 1970, in test_no_repr
    repr(C(3)))
AssertionError: 'test_dataclasses.TestRepr.test_no_repr.<locals>.C object at' not found in '<__main__.TestRepr.test_no_repr.<locals>.C object at 0x7f11745df2c8>'

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