Too many arguments with specific argument after *args
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bug
topic-calls
- Dominant language
- Python
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Description
Bug Report
When using specific arguments after providing arguments with *args, mypy will report an error.
To Reproduce
https://mypy-play.net/?mypy=latest&python=3.11&gist=f8b653e4348ebc7a4006c2a126ed0d85
Expected Behavior
Mypy should succeed.
Actual Behavior
main.py:5: error: Too many arguments for "foo" [call-arg]
Found 1 error in 1 file (checked 1 source file)
Your Environment
See playground
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 with the linked mypy-play reproduction and the reported main.py:5 error, confirming the failure with Python 3.11 and the latest mypy. Trace the argument-checking path for calls using *args followed by a specific argument. Done means the reproduced example type-checks without the spurious "Too many arguments" error.
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Assessment
- Tech stack
- python
- Domain
- tooling
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100