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Description

This change tries to fix #4609, so you can use black piping stdin and expect the new content in the output, formatted or not. This is the way other formatters such as ruff or clang-format works too.

I'm not really sure if this is the best place to output the content, feel free to modify or make any suggestion.

Checklist - did you ...

  • Add an entry in CHANGES.md if necessary?
  • Add / update tests if necessary?
  • Add new / update outdated documentation?

@cobaltt7
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Apologies for the delay in review. This looks fine to me after reading the related issues. @sacereda could you add an entry in CHANGELOG.md?

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github-actions bot commented Oct 19, 2025

diff-shades reports zero changes comparing this PR (12bf3df) to main (e97cf5b).


What is this? | Workflow run | diff-shades documentation

@cobaltt7 cobaltt7 merged commit 27a3085 into psf:main Oct 20, 2025
54 of 55 checks passed
luketainton pushed a commit to luketainton/roboluke-tasks that referenced this pull request Nov 10, 2025
This PR contains the following updates:

| Package | Change | Age | Confidence |
|---|---|---|---|
| [black](https://github.com/psf/black) ([changelog](https://github.com/psf/black/blob/main/CHANGES.md)) | `<25.9.1,>=25.9.0` -> `<25.11.1,>=25.11.0` | [![age](https://developer.mend.io/api/mc/badges/age/pypi/black/25.11.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://developer.mend.io/api/mc/badges/confidence/pypi/black/25.9.0/25.11.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) |

---

### Release Notes

<details>
<summary>psf/black (black)</summary>

### [`v25.11.0`](https://github.com/psf/black/blob/HEAD/CHANGES.md#25110)

[Compare Source](psf/black@25.9.0...25.11.0)

##### Highlights

- Enable base 3.14 support ([#&#8203;4804](psf/black#4804))
- Add support for the new Python 3.14 t-string syntax introduced by PEP 750 ([#&#8203;4805](psf/black#4805))

##### Stable style

- Fix bug where comments between `# fmt: off` and `# fmt: on` were reformatted ([#&#8203;4811](psf/black#4811))
- Comments containing fmt directives now preserve their exact formatting instead of
  being normalized ([#&#8203;4811](psf/black#4811))

##### Preview style

- Move `multiline_string_handling` from `--unstable` to `--preview` ([#&#8203;4760](psf/black#4760))
- Fix bug where module docstrings would be treated as normal strings if preceded by
  comments ([#&#8203;4764](psf/black#4764))
- Fix bug where python 3.12 generics syntax split line happens weirdly ([#&#8203;4777](psf/black#4777))
- Standardize type comments to form `# type: <value>` ([#&#8203;4645](psf/black#4645))
- Fix `fix_fmt_skip_in_one_liners` preview feature to respect `# fmt: skip` for compound
  statements with semicolon-separated bodies ([#&#8203;4800](psf/black#4800))

##### Configuration

- Add `no_cache` option to control caching behavior. ([#&#8203;4803](psf/black#4803))

##### Packaging

- Releases now include arm64 Linux binaries ([#&#8203;4773](psf/black#4773))

##### Output

- Write unchanged content to stdout when excluding formatting from stdin using pipes
  ([#&#8203;4610](psf/black#4610))

##### *Blackd*

- Implemented BlackDClient. This simple python client allows to easily send formatting
  requests to blackd ([#&#8203;4774](psf/black#4774))

##### Integrations

- Enable 3.14 base CI ([#&#8203;4804](psf/black#4804))
- Enhance GitHub Action `psf/black` to support the `required-version` major-version-only
  "stability" format when using pyproject.toml ([#&#8203;4770](psf/black#4770))
- Improve error message for vim plugin users. It now handles independently vim version
- Vim: Warn on unsupported Vim and Python versions independently ([#&#8203;4772](psf/black#4772))
- Vim: Print the import paths when importing black fails ([#&#8203;4675](psf/black#4675))
- Vim: Fix handling of virtualenvs that have a different Python version ([#&#8203;4675](psf/black#4675))

</details>

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied.

♻ **Rebasing**: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update again.

---

 - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box

---

This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).
<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0Mi4yLjAiLCJ1cGRhdGVkSW5WZXIiOiI0Mi4yLjAiLCJ0YXJnZXRCcmFuY2giOiJtYWluIiwibGFiZWxzIjpbInR5cGUvZGVwZW5kZW5jaWVzIl19-->

Reviewed-on: https://git.tainton.uk/repos/roboluke/pulls/393
Co-authored-by: renovate[bot] <[email protected]>
Co-committed-by: renovate[bot] <[email protected]>
luketainton pushed a commit to luketainton/epage that referenced this pull request Nov 10, 2025
This PR contains the following updates:

| Package | Change | Age | Confidence |
|---|---|---|---|
| [black](https://github.com/psf/black) ([changelog](https://github.com/psf/black/blob/main/CHANGES.md)) | `<25.9.1,>=25.9.0` -> `<25.11.1,>=25.11.0` | [![age](https://developer.mend.io/api/mc/badges/age/pypi/black/25.11.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://developer.mend.io/api/mc/badges/confidence/pypi/black/25.9.0/25.11.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) |

---

### Release Notes

<details>
<summary>psf/black (black)</summary>

### [`v25.11.0`](https://github.com/psf/black/blob/HEAD/CHANGES.md#25110)

[Compare Source](psf/black@25.9.0...25.11.0)

##### Highlights

- Enable base 3.14 support ([#&#8203;4804](psf/black#4804))
- Add support for the new Python 3.14 t-string syntax introduced by PEP 750 ([#&#8203;4805](psf/black#4805))

##### Stable style

- Fix bug where comments between `# fmt: off` and `# fmt: on` were reformatted ([#&#8203;4811](psf/black#4811))
- Comments containing fmt directives now preserve their exact formatting instead of
  being normalized ([#&#8203;4811](psf/black#4811))

##### Preview style

- Move `multiline_string_handling` from `--unstable` to `--preview` ([#&#8203;4760](psf/black#4760))
- Fix bug where module docstrings would be treated as normal strings if preceded by
  comments ([#&#8203;4764](psf/black#4764))
- Fix bug where python 3.12 generics syntax split line happens weirdly ([#&#8203;4777](psf/black#4777))
- Standardize type comments to form `# type: <value>` ([#&#8203;4645](psf/black#4645))
- Fix `fix_fmt_skip_in_one_liners` preview feature to respect `# fmt: skip` for compound
  statements with semicolon-separated bodies ([#&#8203;4800](psf/black#4800))

##### Configuration

- Add `no_cache` option to control caching behavior. ([#&#8203;4803](psf/black#4803))

##### Packaging

- Releases now include arm64 Linux binaries ([#&#8203;4773](psf/black#4773))

##### Output

- Write unchanged content to stdout when excluding formatting from stdin using pipes
  ([#&#8203;4610](psf/black#4610))

##### *Blackd*

- Implemented BlackDClient. This simple python client allows to easily send formatting
  requests to blackd ([#&#8203;4774](psf/black#4774))

##### Integrations

- Enable 3.14 base CI ([#&#8203;4804](psf/black#4804))
- Enhance GitHub Action `psf/black` to support the `required-version` major-version-only
  "stability" format when using pyproject.toml ([#&#8203;4770](psf/black#4770))
- Improve error message for vim plugin users. It now handles independently vim version
- Vim: Warn on unsupported Vim and Python versions independently ([#&#8203;4772](psf/black#4772))
- Vim: Print the import paths when importing black fails ([#&#8203;4675](psf/black#4675))
- Vim: Fix handling of virtualenvs that have a different Python version ([#&#8203;4675](psf/black#4675))

</details>

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied.

♻ **Rebasing**: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update again.

---

 - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box

---

This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).
<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0Mi4yLjAiLCJ1cGRhdGVkSW5WZXIiOiI0Mi4yLjAiLCJ0YXJnZXRCcmFuY2giOiJtYWluIiwibGFiZWxzIjpbInR5cGUvZGVwZW5kZW5jaWVzIl19-->

Reviewed-on: https://git.tainton.uk/repos/epage/pulls/176
Co-authored-by: renovate[bot] <[email protected]>
Co-committed-by: renovate[bot] <[email protected]>
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Successfully merging this pull request may close these issues.

Trying to read from stdin dumps no content when stdin-filename is excluded

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