automatic Literal types where possible
Open
Nobody has claimed this yet.
feature
priority-1-normal
topic-literal-types
- Dominant language
- Python
- Stars
- 20.6k
- Forks
- 3.3k
- PR merge metrics
- PR metrics pending
Description
input
class Foo:
pass
reveal_type(Foo.__name__)
expected output:
foo.py:4: error: Revealed type is "Literal['Foo']"
actual output:
foo.py:4: error: Revealed type is 'builtins.str'
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
Start by running the provided Python snippet through mypy and compare the revealed type with the expected Literal['Foo']. Trace the handling of class name types in the type-checking code and add or update coverage for this example; done means mypy reports the expected Literal type.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- compilers, devtools
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100