Codestin Search App

AlexWaygood · 2026-02-28T22:41:40Z

Summary

We have several checks at the moment which fire on legacy type variables with invalid defaults in a class context, but which fail to check for legacy type variables with invalid defaults in a function context. This PR adds those missing checks.

The typing spec states that both legacy and PEP-695 type variables are not allowed to have defaults that:

reference type variables bound in outer scopes, or
reference type variables that are put into scope later on in the type parameter list or function signature

The typing spec also states that a type variable with a default is not allowed to come before any type variables without defaults.

Test Plan

mdtests and snapshots

astral-sh-bot · 2026-02-28T22:43:22Z

Typing conformance results

No changes detected ✅

astral-sh-bot · 2026-02-28T22:44:47Z

`mypy_primer` results

Changes were detected when running on open source projects

spack (https://github.com/spack/spack)
- lib/spack/spack/detection/path.py:169:33: error[invalid-argument-type] Argument to function `dedupe_paths` is incorrect: Expected `list[str]`, found `Unknown | list[int | bytes | PathLike[str] | ... omitted 3 union elements]`
+ lib/spack/spack/detection/path.py:169:33: error[invalid-argument-type] Argument to function `dedupe_paths` is incorrect: Expected `list[str]`, found `Unknown | list[int | str | bytes | ... omitted 3 union elements]`

rich (https://github.com/Textualize/rich)
- tests/test_tools.py:17:17: error[invalid-argument-type] Argument to function `next` is incorrect: Expected `SupportsNext[Unknown]`, found `Iterable[tuple[bool, str | Unknown]]`
+ tests/test_tools.py:17:17: error[invalid-argument-type] Argument to function `next` is incorrect: Expected `SupportsNext[Unknown]`, found `Iterable[tuple[bool, Unknown | str]]`
- tests/test_tools.py:18:17: error[invalid-argument-type] Argument to function `next` is incorrect: Expected `SupportsNext[Unknown]`, found `Iterable[tuple[bool, str | Unknown]]`
+ tests/test_tools.py:18:17: error[invalid-argument-type] Argument to function `next` is incorrect: Expected `SupportsNext[Unknown]`, found `Iterable[tuple[bool, Unknown | str]]`
- tests/test_tools.py:19:17: error[invalid-argument-type] Argument to function `next` is incorrect: Expected `SupportsNext[Unknown]`, found `Iterable[tuple[bool, str | Unknown]]`
+ tests/test_tools.py:19:17: error[invalid-argument-type] Argument to function `next` is incorrect: Expected `SupportsNext[Unknown]`, found `Iterable[tuple[bool, Unknown | str]]`
- tests/test_tools.py:20:17: error[invalid-argument-type] Argument to function `next` is incorrect: Expected `SupportsNext[Unknown]`, found `Iterable[tuple[bool, str | Unknown]]`
+ tests/test_tools.py:20:17: error[invalid-argument-type] Argument to function `next` is incorrect: Expected `SupportsNext[Unknown]`, found `Iterable[tuple[bool, Unknown | str]]`

porcupine (https://github.com/Akuli/porcupine)
+ porcupine/pluginmanager.py:133:49: error[invalid-argument-type] Argument to function `__new__` is incorrect: Expected `Iterable[Never]`, found `Unknown | str`
- Found 24 diagnostics
+ Found 25 diagnostics

pylox (https://github.com/sco1/pylox)
- pylox/containers/array.py:146:9: error[invalid-assignment] Object of type `deque[Unknown | None]` is not assignable to attribute `fields` of type `dict[Unknown, Unknown]`
+ pylox/containers/array.py:146:9: error[invalid-assignment] Object of type `deque[None | Unknown]` is not assignable to attribute `fields` of type `dict[Unknown, Unknown]`

tornado (https://github.com/tornadoweb/tornado)
- tornado/gen.py:255:62: error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `None | Awaitable[Unknown] | list[Awaitable[Unknown]] | dict[Any, Awaitable[Unknown]] | Future[Unknown]`, found `_T@next | _T@next | _VT@next`
+ tornado/gen.py:255:62: error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `None | Awaitable[Unknown] | list[Awaitable[Unknown]] | dict[Any, Awaitable[Unknown]] | Future[Unknown]`, found `_T@next | _VT@next | _T@next`

vision (https://github.com/pytorch/vision)
- test/test_transforms_v2.py:1551:49: error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `Number | Sequence[Unknown]`, found `Unknown | tuple[int, int, int, int] | int | tuple[int | float, int | float]`
+ test/test_transforms_v2.py:1551:49: error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `Number | Sequence[Unknown]`, found `Unknown | int | tuple[int | float, int | float] | tuple[int, int, int, int]`
- test/test_transforms_v2.py:1551:49: error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `Sequence[int | float] | None`, found `Unknown | tuple[int, int, int, int] | int | tuple[int | float, int | float]`
+ test/test_transforms_v2.py:1551:49: error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `Sequence[int | float] | None`, found `Unknown | int | tuple[int | float, int | float] | tuple[int, int, int, int]`
- test/test_transforms_v2.py:1551:49: error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `Sequence[int | float] | None`, found `Unknown | tuple[int, int, int, int] | int | tuple[int | float, int | float]`
+ test/test_transforms_v2.py:1551:49: error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `Sequence[int | float] | None`, found `Unknown | int | tuple[int | float, int | float] | tuple[int, int, int, int]`
- test/test_transforms_v2.py:1551:49: error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `InterpolationMode | int`, found `Unknown | tuple[int, int, int, int] | int | tuple[int | float, int | float]`
+ test/test_transforms_v2.py:1551:49: error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `InterpolationMode | int`, found `Unknown | int | tuple[int | float, int | float] | tuple[int, int, int, int]`
- test/test_transforms_v2.py:1551:49: error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `list[int | float] | None`, found `Unknown | tuple[int, int, int, int] | int | tuple[int | float, int | float]`
+ test/test_transforms_v2.py:1551:49: error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `list[int | float] | None`, found `Unknown | int | tuple[int | float, int | float] | tuple[int, int, int, int]`
- test/test_transforms_v2.py:1605:13: error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `Number | Sequence[Unknown]`, found `Unknown | tuple[int, int, int, int] | int | tuple[int | float, int | float]`
+ test/test_transforms_v2.py:1605:13: error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `Number | Sequence[Unknown]`, found `Unknown | int | tuple[int | float, int | float] | tuple[int, int, int, int]`
- test/test_transforms_v2.py:1605:13: error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `Sequence[int | float] | None`, found `Unknown | tuple[int, int, int, int] | int | tuple[int | float, int | float]`
+ test/test_transforms_v2.py:1605:13: error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `Sequence[int | float] | None`, found `Unknown | int | tuple[int | float, int | float] | tuple[int, int, int, int]`
- test/test_transforms_v2.py:1605:13: error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `Sequence[int | float] | None`, found `Unknown | tuple[int, int, int, int] | int | tuple[int | float, int | float]`
+ test/test_transforms_v2.py:1605:13: error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `Sequence[int | float] | None`, found `Unknown | int | tuple[int | float, int | float] | tuple[int, int, int, int]`
- test/test_transforms_v2.py:1692:45: error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `Number | Sequence[Unknown]`, found `Unknown | tuple[int, int, int, int] | int | tuple[int | float, int | float]`
+ test/test_transforms_v2.py:1692:45: error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `Number | Sequence[Unknown]`, found `Unknown | int | tuple[int | float, int | float] | tuple[int, int, int, int]`
- test/test_transforms_v2.py:1692:45: error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `Sequence[int | float] | None`, found `Unknown | tuple[int, int, int, int] | int | tuple[int | float, int | float]`
+ test/test_transforms_v2.py:1692:45: error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `Sequence[int | float] | None`, found `Unknown | int | tuple[int | float, int | float] | tuple[int, int, int, int]`
- test/test_transforms_v2.py:1692:45: error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `Sequence[int | float] | None`, found `Unknown | tuple[int, int, int, int] | int | tuple[int | float, int | float]`
+ test/test_transforms_v2.py:1692:45: error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `Sequence[int | float] | None`, found `Unknown | int | tuple[int | float, int | float] | tuple[int, int, int, int]`
- test/test_transforms_v2.py:1692:45: error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `InterpolationMode | int`, found `Unknown | tuple[int, int, int, int] | int | tuple[int | float, int | float]`
+ test/test_transforms_v2.py:1692:45: error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `InterpolationMode | int`, found `Unknown | int | tuple[int | float, int | float] | tuple[int, int, int, int]`
- test/test_transforms_v2.py:1747:45: error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `Number | Sequence[Unknown]`, found `Unknown | tuple[int, int, int, int] | int | tuple[int | float, int | float]`
+ test/test_transforms_v2.py:1747:45: error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `Number | Sequence[Unknown]`, found `Unknown | int | tuple[int | float, int | float] | tuple[int, int, int, int]`
- test/test_transforms_v2.py:1747:45: error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `Sequence[int | float] | None`, found `Unknown | tuple[int, int, int, int] | int | tuple[int | float, int | float]`
+ test/test_transforms_v2.py:1747:45: error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `Sequence[int | float] | None`, found `Unknown | int | tuple[int | float, int | float] | tuple[int, int, int, int]`
- test/test_transforms_v2.py:1747:45: error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `Sequence[int | float] | None`, found `Unknown | tuple[int, int, int, int] | int | tuple[int | float, int | float]`
+ test/test_transforms_v2.py:1747:45: error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `Sequence[int | float] | None`, found `Unknown | int | tuple[int | float, int | float] | tuple[int, int, int, int]`
- test/test_transforms_v2.py:1747:45: error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `InterpolationMode | int`, found `Unknown | tuple[int, int, int, int] | int | tuple[int | float, int | float]`
+ test/test_transforms_v2.py:1747:45: error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `InterpolationMode | int`, found `Unknown | int | tuple[int | float, int | float] | tuple[int, int, int, int]`

meson (https://github.com/mesonbuild/meson)
- mesonbuild/dependencies/cuda.py:137:76: error[invalid-argument-type] Argument to function `version_compare_many` is incorrect: Expected `str`, found `Unknown | str | None`
+ mesonbuild/dependencies/cuda.py:137:76: error[invalid-argument-type] Argument to function `version_compare_many` is incorrect: Expected `str`, found `str | None | Unknown`

prefect (https://github.com/PrefectHQ/prefect)
+ src/prefect/utilities/asyncutils.py:198:16: error[invalid-return-type] Return type does not match returned value: expected `R@run_coro_as_sync | None`, found `CoroutineType[Any, Any, R@run_coro_as_sync | None] | R@run_coro_as_sync | None`
+ src/prefect/utilities/asyncutils.py:207:20: error[invalid-return-type] Return type does not match returned value: expected `R@run_coro_as_sync | None`, found `CoroutineType[Any, Any, R@run_coro_as_sync | None] | R@run_coro_as_sync | None`
- Found 5796 diagnostics
+ Found 5798 diagnostics

ibis (https://github.com/ibis-project/ibis)
- ibis/selectors.py:333:16: error[invalid-return-type] Return type does not match returned value: expected `frozenset[str]`, found `frozenset[str | Buffer | Unknown]`
+ ibis/selectors.py:333:16: error[invalid-return-type] Return type does not match returned value: expected `frozenset[str]`, found `frozenset[Unknown | str | Buffer]`
- ibis/selectors.py:428:13: error[invalid-assignment] Object of type `frozenset[str | Unknown]` is not assignable to `tuple[str | Column, ...]`
+ ibis/selectors.py:428:13: error[invalid-assignment] Object of type `frozenset[Unknown | str]` is not assignable to `tuple[str | Column, ...]`

dd-trace-py (https://github.com/DataDog/dd-trace-py)
- scripts/freshvenvs.py:343:69: error[invalid-argument-type] Argument to function `_versions_fully_cover_bounds` is incorrect: Expected `list[str]`, found `list[Version | Unknown] & ~AlwaysFalsy`
+ scripts/freshvenvs.py:343:69: error[invalid-argument-type] Argument to function `_versions_fully_cover_bounds` is incorrect: Expected `list[str]`, found `list[Unknown | Version] & ~AlwaysFalsy`
- tests/tracer/test_span.py:193:29: error[invalid-argument-type] Argument to bound method `set_metric` is incorrect: Expected `int | float`, found `int | float | complex | ... omitted 6 union elements`
+ tests/tracer/test_span.py:193:29: error[invalid-argument-type] Argument to bound method `set_metric` is incorrect: Expected `int | float`, found `int | Unknown | None | ... omitted 6 union elements`

bokeh (https://github.com/bokeh/bokeh)
- src/bokeh/layouts.py:670:21: error[invalid-argument-type] Argument to bound method `__init__` is incorrect: Expected `Iterable[L@_parse_children_arg]`, found `tuple[L@_parse_children_arg | list[L@_parse_children_arg], ...]`
+ src/bokeh/layouts.py:670:16: error[invalid-return-type] Return type does not match returned value: expected `list[L@_parse_children_arg]`, found `list[L@_parse_children_arg | list[L@_parse_children_arg]]`

sympy (https://github.com/sympy/sympy)
- sympy/geometry/tests/test_util.py:129:55: error[invalid-argument-type] Argument to function `subsets` is incorrect: Expected `Sequence[Unknown]`, found `set[Unknown | Point2D]`
+ sympy/geometry/tests/test_util.py:129:55: error[invalid-argument-type] Argument to function `subsets` is incorrect: Expected `Sequence[Unknown]`, found `set[Point2D | Unknown]`
+ sympy/parsing/mathematica.py:692:38: error[invalid-argument-type] Argument to function `__new__` is incorrect: Expected `Iterable[Never]`, found `Unknown | list[Unknown | str]`
- sympy/solvers/tests/test_pde.py:109:16: error[invalid-argument-type] Argument to function `__new__` is incorrect: Expected `(Unknown | str, /) -> Unknown`, found `<class 'Function'>`
+ sympy/solvers/tests/test_pde.py:109:16: error[invalid-argument-type] Argument to function `__new__` is incorrect: Expected `(str | Unknown, /) -> Unknown`, found `<class 'Function'>`
- sympy/solvers/tests/test_pde.py:130:22: error[invalid-argument-type] Argument to function `__new__` is incorrect: Expected `(Unknown | str, /) -> Unknown`, found `<class 'Function'>`
+ sympy/solvers/tests/test_pde.py:130:22: error[invalid-argument-type] Argument to function `__new__` is incorrect: Expected `(str | Unknown, /) -> Unknown`, found `<class 'Function'>`
- sympy/solvers/tests/test_pde.py:138:16: error[invalid-argument-type] Argument to function `__new__` is incorrect: Expected `(Unknown | str, /) -> Unknown`, found `<class 'Function'>`
+ sympy/solvers/tests/test_pde.py:138:16: error[invalid-argument-type] Argument to function `__new__` is incorrect: Expected `(str | Unknown, /) -> Unknown`, found `<class 'Function'>`
- sympy/solvers/tests/test_pde.py:164:16: error[invalid-argument-type] Argument to function `__new__` is incorrect: Expected `(Unknown | str, /) -> Unknown`, found `<class 'Function'>`
+ sympy/solvers/tests/test_pde.py:164:16: error[invalid-argument-type] Argument to function `__new__` is incorrect: Expected `(str | Unknown, /) -> Unknown`, found `<class 'Function'>`
- sympy/solvers/tests/test_pde.py:202:16: error[invalid-argument-type] Argument to function `__new__` is incorrect: Expected `(Unknown | str, /) -> Unknown`, found `<class 'Function'>`
+ sympy/solvers/tests/test_pde.py:202:16: error[invalid-argument-type] Argument to function `__new__` is incorrect: Expected `(str | Unknown, /) -> Unknown`, found `<class 'Function'>`
- sympy/solvers/tests/test_pde.py:216:16: error[invalid-argument-type] Argument to function `__new__` is incorrect: Expected `(Unknown | str, /) -> Unknown`, found `<class 'Function'>`
+ sympy/solvers/tests/test_pde.py:216:16: error[invalid-argument-type] Argument to function `__new__` is incorrect: Expected `(str | Unknown, /) -> Unknown`, found `<class 'Function'>`
- sympy/stats/symbolic_probability.py:532:55: error[unresolved-attribute] Attribute `expand` is not defined on `Basic` in union `Unknown | Basic`
+ sympy/stats/symbolic_probability.py:532:55: error[unresolved-attribute] Attribute `expand` is not defined on `Basic` in union `Basic | Unknown`
- sympy/stats/symbolic_probability.py:533:55: error[unresolved-attribute] Attribute `expand` is not defined on `Basic` in union `Unknown | Basic`
+ sympy/stats/symbolic_probability.py:533:55: error[unresolved-attribute] Attribute `expand` is not defined on `Basic` in union `Basic | Unknown`
- Found 16168 diagnostics
+ Found 16169 diagnostics

materialize (https://github.com/MaterializeInc/materialize)
+ misc/python/materialize/cli/mz_workload_anonymize.py:251:13: error[no-matching-overload] No overload of bound method `join` matches arguments
- Found 527 diagnostics
+ Found 528 diagnostics

scikit-learn (https://github.com/scikit-learn/scikit-learn)
- sklearn/datasets/_lfw.py:469:60: error[invalid-argument-type] Argument to class `str` is incorrect: Expected `bytes | bytearray`, found `str | Unknown`
+ sklearn/datasets/_lfw.py:469:60: error[invalid-argument-type] Argument to class `str` is incorrect: Expected `bytes | bytearray`, found `Unknown | str`

static-frame (https://github.com/static-frame/static-frame)
- static_frame/test/unit/test_bus.py:2137:26: error[unresolved-attribute] Attribute `to_pairs` is not defined on `ndarray[Any, Any]` in union `ndarray[Any, Any] | @Todo | Series[Any, Any]`
+ static_frame/test/unit/test_bus.py:2137:26: error[unresolved-attribute] Attribute `to_pairs` is not defined on `ndarray[Any, Any]` in union `@Todo | Series[Any, Any] | ndarray[Any, Any]`
- static_frame/test/unit/test_bus.py:2138:26: error[unresolved-attribute] Attribute `to_pairs` is not defined on `ndarray[Any, Any]` in union `ndarray[Any, Any] | @Todo | Series[Any, Any]`
+ static_frame/test/unit/test_bus.py:2138:26: error[unresolved-attribute] Attribute `to_pairs` is not defined on `ndarray[Any, Any]` in union `@Todo | Series[Any, Any] | ndarray[Any, Any]`
- static_frame/test/unit/test_bus.py:2166:26: error[unresolved-attribute] Attribute `to_pairs` is not defined on `ndarray[Any, Any]` in union `ndarray[Any, Any] | @Todo | Series[Any, Any]`
+ static_frame/test/unit/test_bus.py:2166:26: error[unresolved-attribute] Attribute `to_pairs` is not defined on `ndarray[Any, Any]` in union `@Todo | Series[Any, Any] | ndarray[Any, Any]`
- static_frame/test/unit/test_bus.py:2167:26: error[unresolved-attribute] Attribute `to_pairs` is not defined on `ndarray[Any, Any]` in union `ndarray[Any, Any] | @Todo | Series[Any, Any]`
+ static_frame/test/unit/test_bus.py:2167:26: error[unresolved-attribute] Attribute `to_pairs` is not defined on `ndarray[Any, Any]` in union `@Todo | Series[Any, Any] | ndarray[Any, Any]`

rotki (https://github.com/rotki/rotki)
- rotkehlchen/tests/unit/test_makerdao.py:170:9: error[invalid-argument-type] Argument is incorrect: Expected `defaultdict[Asset, defaultdict[str, Balance]]`, found `defaultdict[Asset | Unknown, defaultdict[str, Balance] | Balance | dict[Unknown | str, Unknown | Balance] | Unknown]`
+ rotkehlchen/tests/unit/test_makerdao.py:170:9: error[invalid-argument-type] Argument is incorrect: Expected `defaultdict[Asset, defaultdict[str, Balance]]`, found `defaultdict[Asset | Unknown, defaultdict[str, Balance] | Balance | Unknown | dict[Unknown | str, Unknown | Balance]]`
- rotkehlchen/tests/unit/test_makerdao.py:171:9: error[invalid-argument-type] Argument is incorrect: Expected `defaultdict[Asset, defaultdict[str, Balance]]`, found `defaultdict[Asset | Unknown, defaultdict[str, Balance] | Balance | dict[Unknown | str, Unknown | Balance] | Unknown]`
+ rotkehlchen/tests/unit/test_makerdao.py:171:9: error[invalid-argument-type] Argument is incorrect: Expected `defaultdict[Asset, defaultdict[str, Balance]]`, found `defaultdict[Asset | Unknown, defaultdict[str, Balance] | Balance | Unknown | dict[Unknown | str, Unknown | Balance]]`

jax (https://github.com/google/jax)
- jax/collect_profile.py:110:17: error[unresolved-attribute] Attribute `glob` is not defined on `PathLike[str]`, `int`, `str`, `bytes`, `PathLike[bytes]` in union `PathLike[str] | Unknown | int | ... omitted 3 union elements`
+ jax/collect_profile.py:110:17: error[unresolved-attribute] Attribute `glob` is not defined on `PathLike[str]`, `int`, `str`, `bytes`, `PathLike[bytes]` in union `Unknown | PathLike[str] | int | ... omitted 3 union elements`
- jax/collect_profile.py:113:22: error[unsupported-operator] Operator `/` is not supported between objects of type `PathLike[str] | Unknown | int | ... omitted 3 union elements` and `Literal["remote.trace.json.gz"]`
+ jax/collect_profile.py:113:22: error[unsupported-operator] Operator `/` is not supported between objects of type `Unknown | PathLike[str] | int | ... omitted 3 union elements` and `Literal["remote.trace.json.gz"]`

pandas-stubs (https://github.com/pandas-dev/pandas-stubs)
- tests/series/test_series.py:2441:9: error[type-assertion-failure] Type `Unknown` does not match asserted type `Series[Timestamp]`
- Found 4707 diagnostics
+ Found 4706 diagnostics

colour (https://github.com/colour-science/colour)
+ colour/utilities/verbose.py:1071:69: error[invalid-argument-type] Argument to function `getattr` is incorrect: Expected `str`, found `(Unknown & ~None) | <class 'str'> | bool`
- colour/utilities/verbose.py:1071:69: error[invalid-argument-type] Argument to function `getattr` is incorrect: Expected `str`, found `bool | (Unknown & ~None) | <class 'str'>`

astral-sh-bot · 2026-02-28T22:44:48Z

Memory usage report

Memory usage unchanged ✅

AlexWaygood · 2026-02-28T22:56:36Z

Following #23623, I guess we now pass all the conformance tests regarding typevar default scoping. But I still think this PR improves semantics -- it matches pyright's behaviour. The upstream tests seem like they're missing some coverage.

astral-sh-bot · 2026-02-28T23:00:18Z

`ecosystem-analyzer` results

No diagnostic changes detected ✅

Full report with detailed diff (timing results)

AlexWaygood added ty Multi-file analysis & type inference ecosystem-analyzer labels Feb 28, 2026

AlexWaygood force-pushed the claude/fix-type-param-scope-oe7ea branch 2 times, most recently from af5547b to c1a2615 Compare February 28, 2026 23:31

AlexWaygood changed the title ~~[ty] Detect type variables with invalid defaults~~ [ty] More type-variable default validation Feb 28, 2026

AlexWaygood marked this pull request as ready for review February 28, 2026 23:37

AlexWaygood requested review from carljm, dcreager, ibraheemdev and sharkdp as code owners February 28, 2026 23:37

astral-sh-bot bot assigned oconnor663 Feb 28, 2026

AlexWaygood force-pushed the claude/fix-type-param-scope-oe7ea branch from c1a2615 to 8e099a8 Compare March 1, 2026 16:11

[ty] Detect type variables with invalid defaults

2920f62

AlexWaygood force-pushed the claude/fix-type-param-scope-oe7ea branch from 8e099a8 to 2920f62 Compare March 2, 2026 13:15

carljm removed their request for review March 2, 2026 17:44

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[ty] More type-variable default validation#23639

[ty] More type-variable default validation#23639
AlexWaygood wants to merge 1 commit intomainfrom
claude/fix-type-param-scope-oe7ea

AlexWaygood commented Feb 28, 2026 •

edited

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astral-sh-bot bot commented Feb 28, 2026 •

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AlexWaygood commented Feb 28, 2026

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Summary

Test Plan

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Typing conformance results

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mypy_primer results

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Memory usage report

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ecosystem-analyzer results

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AlexWaygood commented Feb 28, 2026 •

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`mypy_primer` results

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`ecosystem-analyzer` results