Support `sys.implementation.name` as feature switch for stubs
Nobody has claimed this yet.
- Dominant language
- Python
- Stars
- 1.8k
- Forks
- 302
- Avg merge
- 23h
- Merged PRs (30d)
- 8
Description
Problem
Sometimes, attributes and variables are only defined for a specific implementation.
E.g. I recently saw that PyPy has a sys.pypy_version_info variable.
At the moment, type checkers only support sys.version_info and sys.platform checks AFAIK.^1
Idea
Add support for sys.implementation.name^2 checks.
import sys
if sys.implementation.name == "pypy":
pypy_version_info: ...
Contributor guide
No contributing guide indexed for this repository
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 reviewing the typing repository and the issue's references to Python's sys.implementation.name and PEP 421. Determine where implementation-specific feature switches are specified or tested; done means checks such as sys.implementation.name == "pypy" are recognized so conditional definitions like pypy_version_info are handled correctly.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- tooling
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100