PEP 695 (Type Parameter Syntax) tracker - Type aliases
Open
Nobody has claimed this yet.
project: feature tracker
- Dominant language
- Python
- Stars
- 5.1k
- Forks
- 2.1k
- Avg merge
- 1d 19h
- Merged PRs (30d)
- 82
Description
This issue is supposed to track when we can start to use the improved type alias syntax introduced in Python 3.12 (PEP 695 in typeshed. Support is needed in released versions of:
- mypy
- pytype (optional)
- pyright
- PyCharm (optional)
As this is a syntax change, it's unlikely that we can add support before mypy drops support for running under Python 3.11 and below.
Example from the PEP:
type ListOrSet[T] = list[T] | set[T]
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
Read PEP 695 first, then check released support for the syntax in mypy, pytype, pyright, and PyCharm. The tracker is complete when the relevant released type-checking tools support the syntax and typeshed can use it.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- tooling
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100