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gh-148947: dataclasses: fix error on empty __class__ cell #148948

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Merged
JelleZijlstra merged 2 commits into from
Apr 25, 2026
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gh-148947: dataclasses: fix error on empty __class__ cell #148948

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gh-148947: dataclasses: fix crash on empty __class__ cell
JelleZijlstra Apr 24, 2026
f3792ab
Update Lib/test/test_dataclasses/__init__.py
JelleZijlstra Apr 24, 2026
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Update Lib/test/test_dataclasses/__init__.py 
Co-authored-by: Bartosz Sławecki <bartosz@ilikepython.com>
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@JelleZijlstra @johnslavik
JelleZijlstra and johnslavik authored Apr 24, 2026
commit f3792ab96f82594a5c885f69b06244c20eee2479
2 changes: 1 addition & 1 deletion Lib/test/test_dataclasses/__init__.py
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Expand Up @@ -5376,7 +5376,7 @@ def cls(self):
self.assertIs(A().cls(), B)

def test_empty_class_cell(self):
# gh-148947: Make sure that if the class cell is empty, we don't crash.
# gh-148947: Make sure that we explicitly handle the empty class cell.
def maker():
if False:
__class__ = 42
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