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bpo-37868: Improve is_dataclass for instances. (pythonGH-15325)
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Misc/NEWS.d/next/Library/2019-08-17-22-33-54.bpo-37868.hp64fi.rst
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,3 @@ | ||
Fix dataclasses.is_dataclass when given an instance that never raises | ||
AttributeError in __getattr__. That is, an object that returns something | ||
for __dataclass_fields__ even if it's not a dataclass. |