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[pyupgrade] Remove mentions of variance related to fix safety (UP040, UP047) - #29592

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FrancescoPezzella:pep695-variance-doc
Oct 21, 2026
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ntBre merged 2 commits into
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FrancescoPezzella:pep695-variance-doc

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Mentioned in #29486

Removes the incorrect descriptions from UP040 and UP047 that mention variance. This was purely decorative and never had any function, so removing it is perfectly safe.

No further clarification added - variance is quite complicated and the user doesn't need to know about (decided in the issue).

This is my first PR here, so I probably did something wrong while making it and I am open to all feedback.

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astral-sh-bot Bot requested a review from ntBre October 21, 2026 13:21
@FrancescoPezzella FrancescoPezzella changed the title [ruff] Update documentation for non-PEP 695 generic function and type alias Update documentation for non-PEP 695 generic function and type alias Oct 21, 2026
@ntBre ntBre added the documentation Improvements or additions to public-facing documentation label Oct 21, 2026

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Looks good, thank you! I just had a minor suggestion on phrasing.

@ntBre ntBre changed the title Update documentation for non-PEP 695 generic function and type alias [pyupgrade] Remove mentions of variance related to fix safety (UP040, UP047) Oct 21, 2026
@ntBre
ntBre enabled auto-merge (squash) October 21, 2026 13:44
@ntBre
ntBre merged commit 9cced9a into astral-sh:main Oct 21, 2026
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@FrancescoPezzella
FrancescoPezzella deleted the pep695-variance-doc branch October 21, 2026 13:59
rlichtenwalter added a commit to rlichtenwalter/dir2text that referenced this pull request Oct 30, 2026
This PR contains the following updates:

| Package | Type | Update | Change | [Age](https://docs.renovatebot.com/merge-confidence/) | [Confidence](https://docs.renovatebot.com/merge-confidence/) |
|---|---|---|---|---|---|
| [DavidAnson/markdownlint-cli2](https://github.com/DavidAnson/markdownlint-cli2) | repository | minor | `v0.23.3` β†’ `v0.24.0` | ![age](https://developer.mend.io/api/mc/badges/age/github-tags/DavidAnson%2fmarkdownlint-cli2/v0.24.0?slim=true) | ![confidence](https://developer.mend.io/api/mc/badges/confidence/github-tags/DavidAnson%2fmarkdownlint-cli2/v0.23.3/v0.24.0?slim=true) |
| [ruff](https://docs.astral.sh/ruff) ([source](https://github.com/astral-sh/ruff), [changelog](https://github.com/astral-sh/ruff/blob/main/CHANGELOG.md)) | dependency-groups | patch | `==0.17.1` β†’ `==0.17.3` | ![age](https://developer.mend.io/api/mc/badges/age/pypi/ruff/0.17.3?slim=true) | ![confidence](https://developer.mend.io/api/mc/badges/confidence/pypi/ruff/0.17.1/0.17.3?slim=true) |

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<details>
<summary>DavidAnson/markdownlint-cli2</summary>

### [`v0.24.0`](DavidAnson/markdownlint-cli2@v0.23.3...v0.24.0)

[Compare Source](DavidAnson/markdownlint-cli2@v0.23.3...v0.24.0)

</details>

<details>
<summary>astral-sh/ruff (ruff)</summary>

### [`v0.17.3`](https://github.com/astral-sh/ruff/blob/HEAD/CHANGELOG.md#0173)

[Compare Source](astral-sh/ruff@0.17.2...0.17.3)

Released on 2026-10-26.

##### Preview features

- \[`suspicious`] Add `shared-clock-mock` ([#&#8203;29074](astral-sh/ruff#29074))

##### Bug fixes

- \[`pyupgrade`] Avoid incorrect conversions to f-strings (`UP032`) ([#&#8203;25485](astral-sh/ruff#25485))

##### Performance

- Buffer stdout in `ruff format` ([#&#8203;29631](astral-sh/ruff#29631))
- Specialize ASCII identifier lexing ([#&#8203;29503](astral-sh/ruff#29503))
- Speed up identifier and keyword lexing ([#&#8203;29463](astral-sh/ruff#29463))

##### Documentation

- \[`flake8-bandit`] Describe what the rule actually checks for `httpx` (`S113`) ([#&#8203;27936](astral-sh/ruff#27936))

##### Contributors

- [@&#8203;itsvedantkumar](https://github.com/itsvedantkumar)
- [@&#8203;charliermarsh](https://github.com/charliermarsh)
- [@&#8203;anishgirianish](https://github.com/anishgirianish)

### [`v0.17.2`](https://github.com/astral-sh/ruff/blob/HEAD/CHANGELOG.md#0172)

[Compare Source](astral-sh/ruff@0.17.1...0.17.2)

Released on 2026-10-22.

##### Preview features

- \[`complexity`] Add `unnecessary-regular-expression-compile` ([#&#8203;25533](astral-sh/ruff#25533))

##### Bug fixes

- Avoid syntax errors for type variables with starred constraints (`UP040`, `UP046`, `UP047`, `RUF053`) ([#&#8203;28362](astral-sh/ruff#28362))
- \[`pydocstyle`] Treat backslash-escaped `*args` and `**kwargs` as documented (`D417`) ([#&#8203;29536](astral-sh/ruff#29536))
- \[`pylint`] Avoid false positive on starred elements (`PLE0643`) ([#&#8203;29483](astral-sh/ruff#29483))
- \[`pylint`] Mark fixes unsafe when deleting comments (`PLR5501`, `PLW0120`) ([#&#8203;29414](astral-sh/ruff#29414))
- \[`pyupgrade`] Mark fix unsafe when deleting comments (`UP035`) ([#&#8203;29413](astral-sh/ruff#29413))

##### Performance

- Avoid intermediate names in lint name resolution ([#&#8203;29506](astral-sh/ruff#29506))
- Prefilter bidirectional Unicode checks by UTF-8 leading bytes ([#&#8203;29561](astral-sh/ruff#29561))
- Share postfix parsing and reduce expression copies ([#&#8203;29480](astral-sh/ruff#29480))

##### Configuration

- \[`pylint`] Add a configurable allowlist for `magic-value-comparison` (`PLR2004`) ([#&#8203;18961](astral-sh/ruff#18961))

##### Documentation

- Clarify documentation and correct stale guidance ([#&#8203;29374](astral-sh/ruff#29374))
- \[`pyupgrade`] Remove mentions of variance related to fix safety (`UP040`, `UP047`) ([#&#8203;29592](astral-sh/ruff#29592))

##### Contributors

- [@&#8203;fixfon](https://github.com/fixfon)
- [@&#8203;MichaReiser](https://github.com/MichaReiser)
- [@&#8203;zaniebot](https://github.com/zaniebot)
- [@&#8203;FrancescoPezzella](https://github.com/FrancescoPezzella)
- [@&#8203;anishgirianish](https://github.com/anishgirianish)
- [@&#8203;rajveer3x](https://github.com/rajveer3x)
- [@&#8203;charliermarsh](https://github.com/charliermarsh)
- [@&#8203;LckyLike](https://github.com/LckyLke)
- [@&#8203;DaniBodor](https://github.com/DaniBodor)

</details>

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Reviewed-on: https://git.lichtenwalter.site/rlichten/dir2text/pulls/100
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