Add conformance tests for Final dataclass fields by carljm · Pull Request #1741 · python/typing · GitHub
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Footer
You can’t perform that action at this time.
Add conformance tests for the spec changes merged in #1669
None of the tested type checkers support nesting Final within ClassVar in dataclasses yet, so they all fail the automated conformance check. Mypy also requires a Final assignment in a dataclass body to be "initialized" (thus effectively requiring final dataclass fields to have a default). But all support the core behavior of defining a final dataclass field, so I marked them all as Partial.