⬆️ deps: Update Python dev dependencies

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
ruff (source, changelog)	>=0.16.0 → >=0.16.1
ty (changelog)	>=0.0.63 → >=0.0.65

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Release Notes

astral-sh/ruff (ruff)

v0.16.1

Compare Source

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
• @​ntBre
• @​HarshalPatel1972
• @​mjpieters
• @​joshuavetos
• @​jesco-absolute
• @​vidigoat
• @​baltasarblanco
• @​ribru17
• @​oh-summy
• @​Jayashanker-Padishala

astral-sh/ty (ty)

v0.0.65

Compare Source

Released on 2026-07-29.

LSP server

• Support comprehension walruses in IDE features (#​26476)

Library support

• Pydantic: Allow mutation of private attributes on frozen models (#​27257)
• Pydantic: Synthesize __replace__ for models (#​27220)

Diagnostics

• Correct ParamSpec forwarded-argument diagnostic locations (#​27263)
• Recover forwarded callable object and constructor sources (#​27264)
• Recover forwarded functools.partial diagnostic sources (#​27265)

Core type checking

• Fix gradual class assignability with generic receivers (#​27223)
• Lazily materialize protocol attributes (#​27267)
• Narrow tagged unions through all type kinds (#​27226)
• Prefer static constrained TypeVar solutions (#​27057)
• Preserve frozen-dataclass setter delegation (#​27217)
• Preserve inference when filtering constructor overloads (#​27254)
• Reject frozen-dataclass field deletion through subclasses (#​27001)
• Stabilize recursive type-constraint ordering (#​27176)
• Support materialized class type expressions (#​27258)

Performance

• Avoid quadratic inference for large literal unions (#​27178)
• Cache protocol receiver binding (#​27301)

Contributors

• @​thejchap
• @​benedikt-bartscher
• @​carljm
• @​charliermarsh

v0.0.64

Compare Source

Released on 2026-07-27.

Bug fixes

• Fix identity narrowing for NewTypes (#​26439)
• Make reachability analysis idempotent (#​27163)

LSP server

• Fix ParamSpec declaration hover and type navigation (#​27183)
• Implement LSP textDocument/implementation request (#​25410)
• Introduce shared primitives for parsing backticks in docstrings (#​26928)
• Render NumPy docstrings as structured Markdown (#​25925)

CLI

• Add --exclude-scripts and --include-scripts (#​27169)
• Discover uv workspace roots (#​25551)

Diagnostics

• Add a lint rule for combined abstract and final decorators (#​26932)
• Change --add-ignore to add space after the colon for ty: ignore (#​27120)
• Fix missing-override-decorator suggestion before Python 3.12 (#​27166)
• Reuse full call diagnostics for implicit setter calls (#​27115)

Configuration

• Allow unresolved unused venv home paths (#​27162)
• Simplify script metadata query (#​27121)

Core type checking

• Decorate only overload implementation signatures (#​27147)
• Don't consider known-instance types, generic aliases or non-singleton special-form types to be single-valued (#​27137)
• Improve identity comparison inference for singleton types (#​27126)
• Improve tuple membership and rich comparison inference (#​27164)
• Model walrus bindings from comprehensions (#​26466)
• Narrow tagged unions using identity comparisons (#​27130)
• Preserve Self in __new__ calls (#​27003)
• Preserve receiver constraints when binding overloaded methods (#​27038)
• Support generic manual PEP 695 type aliases (#​27083)
• Treat bivariance as covariant (#​24319)

Performance

• Avoid cycles when resolving ModuleType globals (#​27182)
• Avoid expanding optional enum comparisons (#​27105)
• Avoid repeated inference when copying mixed TypedDict unions (#​27108)
• Improve importer performance (#​27159)
• Improve union and intersection builder performance (#​27167)

Contributors

• @​perfloop-agent
• @​carljm
• @​lerebear
• @​Gankra
• @​TrapsterDK
• @​MichaReiser
• @​thejchap
• @​mtshiba
• @​denyszhak
• @​charliermarsh
• @​AlexWaygood

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