python / python/typing

Get generic of typevar

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#1,999 3 comments 0 reactions 0 assignees View on GitHub

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topic: feature
Dominant language
Python
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Forks
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Avg merge
23h
Merged PRs (30d)
8

Description

support something like this

class A[T]:
    def __init__(self, t: T):
        self.t = t


class B:
    def x[TA: A](self, a: TA) -> TA.T:
        return a.t

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First steps

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  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

No files, tests, or entry points are identified in the issue. Begin by reviewing how generic classes, type variables, and attribute types are currently specified in the typing project, then determine the intended semantics for accessing the type variable through the generic bound; done means the proposed syntax has documented, testable behavior.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
developer-experience
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
30/100

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