chore(deps-dev): bump the python-tooling group across 1 directory with 2 updates

[dependabot]

Bumps the python-tooling group with 2 updates in the /backend directory: black and ruff.

Updates black from 26.3.1 to 26.5.1

Release notes

Sourced from black's releases.

26.5.1

Stable style

• Fix unstable formatting of annotated assignments whose subscript annotation contains an inline comment (e.g. x: list[ # pyright: ignore[...]) (#5130)
• Preserve inline comments (including # type: ignore) immediately before a # fmt: skip line, avoiding AST equivalence failures (#5139)

Packaging

• Correct the version in the published executables (#5137)

Documentation

• Add Neovim integration guide covering conform.nvim, ALE, and simple command approaches (#5124)

26.5.0

Highlights

• Add support for unpacking in comprehensions (PEP 798) and for lazy imports (PEP 810), both new syntactic features in Python 3.15 (#5048)
• Python 3.15 is now supported. Compiled wheels are not yet provided for Python 3.15, so performance may be slower than on existing Python versions. Wheels will be provided once Python 3.15 is later in its release cycle. (#5127)

Stable style

• Fix # fmt: skip being ignored in nested if expressions with parenthesized in clauses (#4903)
• Add syntactic support for Python 3.15 (#5048)
• Fix crash when an f-string follows a # fmt: off comment inside brackets (#5097)
• Preserve multiline compound statement headers when # fmt: skip is placed on the colon line (#5117)

Preview style

• Improve heuristics around whether blank lines should appear before, within and after groups of same-name decorated functions (such as @overload groups) in .pyi stub files (#5021)
• Fix blank lines being removed between a function and a decorated class in .pyi stub files (#5092)
• Prevent string merger from creating unsplittable long lines when a pragma comment (e.g. # type: ignore) follows the closing bracket (#5096)

Packaging

• Run CI on 3.15 (#5127)

Output

... (truncated)

Changelog

Sourced from black's changelog.

Version 26.5.1

Stable style

• Fix unstable formatting of annotated assignments whose subscript annotation contains an inline comment (e.g. x: list[ # pyright: ignore[...]) (#5130)
• Preserve inline comments (including # type: ignore) immediately before a # fmt: skip line, avoiding AST equivalence failures (#5139)

Packaging

• Correct the version in the published executables (#5137)

Documentation

• Add Neovim integration guide covering conform.nvim, ALE, and simple command approaches (#5124)

Version 26.5.0

Highlights

• Add support for unpacking in comprehensions (PEP 798) and for lazy imports (PEP 810), both new syntactic features in Python 3.15 (#5048)
• Python 3.15 is now supported. Compiled wheels are not yet provided for Python 3.15, so performance may be slower than on existing Python versions. Wheels will be provided once Python 3.15 is later in its release cycle. (#5127)

Stable style

• Fix # fmt: skip being ignored in nested if expressions with parenthesized in clauses (#4903)
• Add syntactic support for Python 3.15 (#5048)
• Fix crash when an f-string follows a # fmt: off comment inside brackets (#5097)
• Preserve multiline compound statement headers when # fmt: skip is placed on the colon line (#5117)

Preview style

• Improve heuristics around whether blank lines should appear before, within and after groups of same-name decorated functions (such as @overload groups) in .pyi stub files (#5021)
• Fix blank lines being removed between a function and a decorated class in .pyi stub files (#5092)
• Prevent string merger from creating unsplittable long lines when a pragma comment (e.g. # type: ignore) follows the closing bracket (#5096)

Packaging

• Run CI on 3.15 (#5127)

... (truncated)

Commits

• 87928e6 Prepare release 26.5.1 (#5140)
• c970a49 Preserve comments before fmt: skip lines (#5139)
• 5809338 Preserve inline comments inside annotation subscripts (#5130)
• 61361b7 docs: add Neovim integration guide and fix http link (#5124)
• ebe6018 CI Hotfixes (#5136)
• 9cbd95f Fix publish binaries again on Windows (#5134)
• 3dc8e6c Add new changelog (#5132)
• 6d0fff0 Fix publish binaries workflow (#5133)
• d2490e2 Prepare release 26.5.0 (#5131)
• 2b13ea7 Preserve multiline headers with fmt skip (#5117)
• Additional commits viewable in compare view

Updates ruff from 0.1.14 to 0.16.1

Release notes

Sourced from ruff's releases.

0.16.1

Release Notes

Released on 2026-07-30.

Preview features

• Add an option to opt out of human-readable names (#27160)
• [flake8-pytest-style] Make fixes safe by default and unsafe only when comments are present (PT018) (#27201)
• [pyupgrade] Skip fix when a defaulted TypeVar precedes a non-defaulted one (UP040, UP046, UP047) (#27133)
• [ruff] Fix false positive with unpacked arguments (RUF065) (#26959)

Bug fixes

• Bump gen-lsp-types to gracefully handle unknown enumeration values in LSP messages (#27230)
• [flake8-bugbear] Mark range as immutable (B008) (#27247)
• [flake8-comprehensions] NFKC-normalize keyword names in C408 fix (#26813)
• [flake8-return] Fix false positive when variable is read in finally clause (RET504) (#25441)
• [pydocstyle] Skip section detection inside RST directive bodies (D214, D405, D413) (#23635)
• [refurb] Parenthesize yield arguments in the FURB192 fix (#27192)

Rule changes

• [flake8-pytest-style] Mark PT022 fixes as unsafe (#26440)
• [refurb] Mark fixes that remove unknown separators as unsafe (FURB105) (#27200)

Server

• Fix indexing of excluded nested Ruff workspaces (#27303)
• Lint TOML files in the LSP (#26862)

Documentation

• Cover pycon Markdown formatting (#27153)
• [flake8-bandit] Document TYPE_CHECKING exception (S101) (#27004)
• [flake8-import-conventions] Document that extend-aliases can override default aliases (#27191)
• [pylint] Add missing fix safety gotchas for non-augmented-assignment (PLR6104) (#27250)

Other changes

• Reduce syntax error noise by swallowing dedents like indents (#27170)
• Vendor latest annotate-snippets (#27033)

Contributors

• @​bxff
• @​anishgirianish
• @​Avasam
• @​epage
• @​LHMQ878

... (truncated)

Changelog

Sourced from ruff's changelog.

0.16.1

Released on 2026-07-30.

Preview features

• Add an option to opt out of human-readable names (#27160)
• [flake8-pytest-style] Make fixes safe by default and unsafe only when comments are present (PT018) (#27201)
• [pyupgrade] Skip fix when a defaulted TypeVar precedes a non-defaulted one (UP040, UP046, UP047) (#27133)
• [ruff] Fix false positive with unpacked arguments (RUF065) (#26959)

Bug fixes

• Bump gen-lsp-types to gracefully handle unknown enumeration values in LSP messages (#27230)
• [flake8-bugbear] Mark range as immutable (B008) (#27247)
• [flake8-comprehensions] NFKC-normalize keyword names in C408 fix (#26813)
• [flake8-return] Fix false positive when variable is read in finally clause (RET504) (#25441)
• [pydocstyle] Skip section detection inside RST directive bodies (D214, D405, D413) (#23635)
• [refurb] Parenthesize yield arguments in the FURB192 fix (#27192)

Rule changes

• [flake8-pytest-style] Mark PT022 fixes as unsafe (#26440)
• [refurb] Mark fixes that remove unknown separators as unsafe (FURB105) (#27200)

Server

• Fix indexing of excluded nested Ruff workspaces (#27303)
• Lint TOML files in the LSP (#26862)

Documentation

• Cover pycon Markdown formatting (#27153)
• [flake8-bandit] Document TYPE_CHECKING exception (S101) (#27004)
• [flake8-import-conventions] Document that extend-aliases can override default aliases (#27191)
• [pylint] Add missing fix safety gotchas for non-augmented-assignment (PLR6104) (#27250)

Other changes

• Reduce syntax error noise by swallowing dedents like indents (#27170)
• Vendor latest annotate-snippets (#27033)

Contributors

• @​bxff
• @​anishgirianish
• @​Avasam
• @​epage
• @​LHMQ878
• @​MichaReiser

... (truncated)

Commits

• 80790b3 Bump 0.16.1 (#27330)
• 63830f3 [ty] Borrow from constraint set storage less often (#27328)
• f40dca9 [ty] Preserve forwarded expanded-variadic diagnostic sources (#27266)
• 0d80497 Lint TOML files in the LSP (#26862)
• d91586b Update prek dependencies (#27293)
• 7da4b8b [ty] Respect bounds and constraints in generic materializations (#27228)
• b20daf7 [ty] refactor: add helper function to send partial results (#27249)
• 4d4c8fa [ty] Emit diagnostic when specializing a non-generic class (#26883)
• 7c3e2db [ty] Fix enum class container assignability (#27318)
• d5ef97f [flake8-return] Fix false positive when variable is read in finally claus...
• Additional commits viewable in compare view

[github-actions]

PR Context Summary

• Linked issue(s): none
• Referenced but not closing: #5130, #5139, #5137, #5124, #5048, #5127, #4903, #5097, #5117, #5021, #5092, #5096, #5140, #5136, #5134, #5132, #5133, #5131, #27160, #27201, #27133, #26959, #27230, #27247, #26813, #25441, #23635, #27192, #26440, #27200, #27303, #26862, #27153, #27004, #27191, #27250, #27170, #27033, #27330, #27328, #27266, #27293, #27228, #27249, #26883, #27318
• PR author trusted by GitHub: no
• Dependabot PR: yes
• PR assignee synced from linked issue: no change
• Macroscope review status: Waiting for under-review or ready-to-merge before triggering Macroscope.

Suggested issue links

• No strong issue match found yet.

Use Fixes #123 or Closes #123 in the PR body when one of the suggestions is the intended issue.
Manual rerun: Actions > PR Context Triage > Run workflow > set pr_number and force_review=true.

[Abhash-Chakraborty]

Holding this one. The ruff jump is 0.1.14 -> 0.16.1, which is basically two years of new default rules — backend-check comes back with 879 errors (593 auto-fixable). That is not something to sneak in on a dependabot PR.

Plan: I will do a standalone chore: bump ruff and fix lint fallout PR that runs ruff check --fix, pins the rule set explicitly in pyproject, and hand-fixes the rest. Once that lands this bump becomes a no-op. Leaving it open until then.

[macroscopeapp]

Approvability

Verdict: Approved 23bda24

Dev dependency version bumps (black, ruff) with explicit ruff config to maintain the existing lint baseline. All code changes are pure formatting adjustments with no runtime impact.

^{You can customize Macroscope's approvability policy. Learn more.}

[Abhash-Chakraborty]

Fixed the fallout in a follow-up commit: the 874 findings were ruff 0.16 broadening its default rule set, not regressions in our code. Pinned select = ["E4","E7","E9","F"] — ruff's own stable default and the exact baseline we were green on under 0.1.14 — so the bump is behaviour-neutral and future ruff releases can't silently change our lint surface again. Plus a ruff format pass over 5 files (f-string spacing, parenthesised with, assert wrapping; cosmetic only). backend-check green, 619 passed.