# python/typing

Python static typing home. Hosts the documentation and a user help forum.

Repository: https://github.com/python/typing
Canonical: https://ross.abutalabs.com/products/typing
Homepage: https://typing.python.org/en/latest/
Language: Python
License: NOASSERTION
License Family: other
Topics: python, types, typing, static-typing, gradual-typing
Last push: 2026-08-26T00:42:33+00:00

## Health v2 (maintenance only)
Score: 77/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 35, longevity 100
- inputs: {"age_days": 4356, "days_push": 8, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1779, forks 303 (observed 2026-08-28T04:05:35.267829+00:00)

## What it is
The official home for Python's static typing system, hosting the type system specification, documentation at typing.python.org, a user support forum, and conformance tests for Python type checkers. It is primarily a documentation and coordination hub rather than a runnable library.

## Use cases
- learn python type hints
- read the python typing specification
- find help with python typing errors
- check which python type checkers pass conformance tests
- propose changes to the python type system
- understand gradual typing in python

## When to choose
- you need authoritative documentation or the spec for Python's type system
- you want to discuss or propose typing system changes
- you need user help with typing questions
- you're building a type checker and want conformance tests

## When to avoid
- you need the typing_extensions package itself (it lives in a separate repo)
- you need a runtime typing backport for old Python versions (use PyPI)
- you want a type checker tool rather than documentation

## Facets
- artifact type: learning-resource
- maturity: active
- function: documentation, type-system, testing
- domain: programming-languages, documentation, developer-tools, testing
- platform: python, cross-platform
- tags: static-typing, type-hints, gradual-typing, specification, conformance-tests, python-typing

## Member repositories
- python/typing (main) score 77

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:35.267829+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:25:07.919019+00:00, confidence not recorded.
  - readme: https://github.com/python/typing (fetched 2026-08-28T04:05:35.267829+00:00, sha 46b801f6f559)
  - registry_pypi: https://pypi.org/pypi/typing/json (fetched 2026-08-29T11:03:48.359207+00:00, sha 24aba5886688)
- Data as of 2026-08-30T08:39:29.467469+00:00.