bpo-32513: Make it easier to override dunders in dataclasses. (GH-5366)

Class authors no longer need to specify repr=False if they want to provide a custom __repr__ for dataclasses. The same thing applies for the other dunder methods that the dataclass decorator adds. If dataclass finds that a dunder methods is defined in the class, it will not overwrite it.

bpo-32513: Make it easier to override dunders in dataclasses. (GH-5366)
Class authors no longer need to specify repr=False if they want to provide a custom __repr__ for dataclasses. The same thing applies for the other dunder methods that the dataclass decorator adds. If dataclass finds that a dunder methods is defined in the class, it will not overwrite it.
ea8fc52e · Eric V. Smith · GitHub · 2a2247ce · ea8fc52e · ea8fc52e
Commit ea8fc52e authored Jan 27, 2018 by Eric V. Smith Committed by GitHub Jan 27, 2018
3 changed files
--- a/Lib/dataclasses.py
+++ b/Lib/dataclasses.py
--- a/Lib/test/test_dataclasses.py
+++ b/Lib/test/test_dataclasses.py
--- a/Misc/NEWS.d/next/Library/2018-01-27-11-20-16.bpo-32513.ak-iD2.rst
+++ b/Misc/NEWS.d/next/Library/2018-01-27-11-20-16.bpo-32513.ak-iD2.rst
+In dataclasses, allow easier overriding of dunder methods without specifying
+decorator parameters.