(🐞) Invalid `valid-type` error when using a variable as a value, not as a type
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bug
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- Python
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Description
a: type[object]
b: type[object] = list[a] # Variable "__main__.a" is not valid as a type [valid-type]
Here I am not using a as a 'type' (TypeAlias or annotation), I'm using it as a value, so this error seems like it shouldn't apply.
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Research direction
Start by reproducing the reported snippet with mypy and tracing the valid-type diagnostic for a variable used as a value. Compare that behavior with uses where the variable is genuinely treated as a type; done means the value use no longer reports this error while invalid type uses still do.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- compilers
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 42/100