Disable promotions when restricting types in isinstance checks #6142
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
Collaborator
Author
|
Argh the test failure is the windows IPC flake, merging |
Michael0x2a
added a commit
to Michael0x2a/mypy
that referenced
this pull request
Jan 11, 2019
This pull request reverts python#6114 and python#6142: see python#6180 for rationale. In short, the original fix ended up being more disruptive then anticipated: it's modifying str and unicode semantics, and we should put a little more thought into reasoning about that particular case before moving ahead with any fix here. This should also help unblock the upcoming 0.660 release.
Michael0x2a
added a commit
that referenced
this pull request
Jan 11, 2019
This pull request reverts #6114 and #6142: see #6180 for rationale. In short, the original fix ended up being more disruptive then anticipated: it's modifying str and unicode semantics, and we should put a little more thought into reasoning about that particular case before moving ahead with any fix here. This should also help unblock the upcoming 0.660 release.
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
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Outdated suggestions cannot be applied.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.
This fixes a bug left behind by #6114, where too much would get
subtracted out of a union type after an isinstance.
Fixes #6141.