`dataclass` is not `Hashable`
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Nobody has claimed this yet.
bug
topic-dataclasses
- Dominant language
- Python
- Stars
- 20.6k
- Forks
- 3.3k
- PR merge metrics
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Description
from dataclasses import dataclass
from typing import Hashable
@dataclass
class SusDataclass:
b = "AMONGUS"
h: Hashable = SusDataclass() # SUS ALERT!
d = {
SusDataclass(): 1 # SUS ALERT! fails at runtime
}
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
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- Open a pull request that references the issue number.
Research direction
No source file or test is named. Start by reproducing the shown dataclass and dictionary examples, then trace mypy's dataclass and Hashable handling. Done means the checker consistently reports the runtime-relevant hashability of this case, with regression coverage for the example.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- devtools
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100