shahar1 opened a new pull request, #65660:
URL: https://github.com/apache/airflow/pull/65660
PR #61422 (merged Apr 22, 2026) changed the root `pyproject.toml` mypy
plugin references from file-path form to module form:
```toml
plugins = [
"airflow_mypy.plugins.decorators",
"airflow_mypy.plugins.outputs",
]
```
Module-form plugins require the package to be importable in the mypy venv.
The mypy hooks for `airflow-core`, `task-sdk`, and all other non-provider,
non-scripts distributions build their venv by running:
```
uv sync --frozen --project devel-common --group mypy
```
But `devel-common`'s `mypy` dependency group did not include
`apache-airflow-mypy` (which lives in `dev/mypy/`). As a result, all those mypy
hooks fail immediately with:
```
Error importing plugin "airflow_mypy.plugins.decorators": No module named
'airflow_mypy'
```
This was discovered during the provider release process (#65614) when
rebasing onto today's `main` after #61422 landed.
**Fix:** add `apache-airflow-mypy` to the `mypy` optional-extra in
`devel-common/pyproject.toml` so it is installed into every affected mypy hook
venv.
---
##### Was generative AI tooling used to co-author this PR?
- [X] Yes — GitHub Copilot (Claude Sonnet 4.6)
Generated-by: GitHub Copilot (Claude Sonnet 4.6) following [the
guidelines](https://github.com/apache/airflow/blob/main/contributing-docs/05_pull_requests.rst#gen-ai-assisted-contributions)
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
