KotlinIsland / KotlinIsland/basedmypy
type-guard non-parameters
Open
Nobody has claimed this yet.
feature
TypeGuard
- Dominant language
- Python
- Stars
- 202
- Forks
- 6
- PR merge metrics
- No merged PRs in 30d
Description
a: object
def guard() -> a is int: ...
assert guard()
reveal_type(a)
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Use the shown Python snippet as the starting reproduction; inspect the type-checker path that handles type guards for non-parameter names. Done means the example's reveal_type(a) reflects the guard's narrowing, with regression coverage for this case.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- tooling
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100