Fix walrus assignment type propagation across call arguments #20427
+40
−1
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.
Outdated suggestions cannot be applied.
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.
Mypy failed to infer the type of a variable assigned via the walrus operator
when the assignment appeared in an earlier keyword argument and the variable
was used in a later argument in the same call.
This PR evaluates call arguments once, left to right, so binder updates from
walrus assignments are preserved.
Fixes #20411