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Fix list inference in Union contexts and internal crashes #20518
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This commit fixes an issue where list constructions (literals, comprehensions) assigned to Union types (e.g., list[str] | list[int]) failed to correctly infer the specific list type, often defaulting to a generic or incorrect type. Changes: - mypy/checkexpr.py: - Updated check_callable_call to split Union contexts and infer specialized candidates for each Union item. - Added candidate filtering using is_subtype to discard generic candidates that shouldn't match specialized contexts, preventing regressions. - Fixed a crash in type_overrides_set context manager when handling duplicate expressions. - mypy/build.py: - Fixed CACHE_VERSION import and usage to prevent TypeError during build/tests.
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Diff from mypy_primer, showing the effect of this PR on open source code:
beartype (https://github.com/beartype/beartype) + beartype/_util/module/utilmodimport.py:460: error: No overload variant of "get" of "dict" matches argument types "str", "Iota" [call-overload] + beartype/_util/module/utilmodimport.py:460: note: Possible overload variant: + beartype/_util/module/utilmodimport.py:460: note: def get(self, str, type, /) -> type - beartype/claw/_ast/_kind/clawastimport.py:622: error: Unused "type: ignore" comment [unused-ignore] - beartype/claw/_ast/_kind/clawastimport.py:631: error: Unused "type: ignore" comment [unused-ignore] + beartype/claw/_ast/_kind/clawastimport.py:586: error: No overload variant of "get" of "dict" matches argument types "str | Any", "Iota" [call-overload] + beartype/claw/_ast/_kind/clawastimport.py:586: note: Possible overload variant: + beartype/claw/_ast/_kind/clawastimport.py:586: note: def get(self, str, dict[str, BeartypeDecorPlaceSubtrie] | None, /) -> dict[str, BeartypeDecorPlaceSubtrie] | None hydpy (https://github.com/hydpy-dev/hydpy) + hydpy/core/auxfiletools.py:556: error: No overload variant of "deepcopy" matches argument type "Parameter" [call-overload] + hydpy/core/auxfiletools.py:556: note: Possible overload variant: + hydpy/core/auxfiletools.py:556: note: def deepcopy(x: KeywordArguments[Any], memo: dict[int, Any] | None = ..., _nil: Any = ...) -> KeywordArguments[Any] optuna (https://github.com/optuna/optuna) + optuna/importance/_ped_anova/scott_parzen_estimator.py:70: error: No overload variant of "min" matches argument types "int", "Any" [call-overload] + optuna/importance/_ped_anova/scott_parzen_estimator.py:70: note: Possible overload variants: + optuna/importance/_ped_anova/scott_parzen_estimator.py:70: note: def min(ndarray[tuple[Any, ...], dtype[integer[Any] | numpy.bool[builtins.bool]]], ndarray[tuple[Any, ...], dtype[integer[Any] | numpy.bool[builtins.bool]]], /, *_args: ndarray[tuple[Any, ...], dtype[integer[Any] | numpy.bool[builtins.bool]]], key: None = ...) -> ndarray[tuple[Any, ...], dtype[integer[Any] | numpy.bool[builtins.bool]]] + optuna/importance/_ped_anova/scott_parzen_estimator.py:70: note: def min(tuple[ndarray[tuple[Any, ...], dtype[integer[Any] | numpy.bool[builtins.bool]]], ...], tuple[ndarray[tuple[Any, ...], dtype[integer[Any] | numpy.bool[builtins.bool]]], ...], /, *_args: tuple[ndarray[tuple[Any, ...], dtype[integer[Any] | numpy.bool[builtins.bool]]], ...], key: None = ...) -> tuple[ndarray[tuple[Any, ...], dtype[integer[Any] | numpy.bool[builtins.bool]]], ...] spark (https://github.com/apache/spark) + python/pyspark/sql/readwriter.py:314: error: Unused "type: ignore" comment [unused-ignore] + python/pyspark/sql/readwriter.py:314: error: No overload variant of <list> matches argument type "list[str]" [call-overload] + python/pyspark/sql/readwriter.py:314: note: Error code "call-overload" not covered by "type: ignore" comment + python/pyspark/sql/readwriter.py:314: note: Possible overload variant: + python/pyspark/sql/readwriter.py:314: note: def <list>(*str) -> list[str] + python/pyspark/sql/classic/dataframe.py:744: error: Unused "type: ignore" comment [unused-ignore] + python/pyspark/sql/classic/dataframe.py:751: error: Unsupported left operand type for & ("list[str]") [operator] + python/pyspark/sql/classic/dataframe.py:751: error: Argument 2 to "reduce" has incompatible type "list[Column]"; expected "Iterable[list[str]]" [arg-type] + python/pyspark/sql/classic/dataframe.py:752: error: "list[str]" has no attribute "_jc" [attr-defined] + python/pyspark/sql/classic/dataframe.py:873: error: Unused "type: ignore" comment [unused-ignore] + python/pyspark/sql/classic/dataframe.py:880: error: Unsupported left operand type for & ("list[str]") [operator] + python/pyspark/sql/classic/dataframe.py:880: error: Argument 2 to "reduce" has incompatible type "list[Column]"; expected "Iterable[list[str]]" [arg-type] + python/pyspark/sql/classic/dataframe.py:881: error: "list[str]" has no attribute "_jc" [attr-defined] + python/pyspark/pandas/frame.py:3675: error: Argument 1 to "reduce" has incompatible type "Callable[[Series[Any], Series[Any]], Series[Any] | Index]"; expected "Callable[[Series[Any], Series[Any]], Series[Any]]" [arg-type] + python/pyspark/pandas/frame.py:3675: error: Incompatible return value type (got "Series[Any] | Index", expected "Series[Any]") [return-value] + python/pyspark/pandas/namespace.py:342: error: Unused "type: ignore" comment [unused-ignore] + python/pyspark/pandas/groupby.py:2182: error: No overload variant of "filter" of "SeriesGroupBy" matches argument type "Callable[[FrameLike], FrameLike]" [call-overload] + python/pyspark/pandas/groupby.py:2182: note: Possible overload variants: + python/pyspark/pandas/groupby.py:2182: note: def [P`20430] filter(self, func: Callable[[Series[Any], **P], Any] | str, dropna: bool = ..., *args: P.args, **kwargs: P.kwargs) -> Series[Any] + python/pyspark/sql/connect/client/core.py:716: error: Argument 2 to "getenv" has incompatible type "None"; expected "str" [arg-type] tornado (https://github.com/tornadoweb/tornado) + tornado/websocket.py:265: error: No overload variant of "get" of "Mapping" matches argument types "str", "None" [call-overload] + tornado/websocket.py:265: note: Possible overload variant: + tornado/websocket.py:265: note: def get(self, str, str, /) -> str + tornado/websocket.py:1006: error: No overload variant of "get" of "Mapping" matches argument types "str", "None" [call-overload] + tornado/websocket.py:1006: note: Possible overload variant: + tornado/websocket.py:1006: note: def get(self, str, str, /) -> str prefect (https://github.com/PrefectHQ/prefect) + src/prefect/task_runs.py:217: error: No overload variant of "create_call" matches argument type "Any" [call-overload] + src/prefect/task_runs.py:217: note: Possible overload variants: + src/prefect/task_runs.py:217: note: def [P`5668] create_call(def (*Any, **Any) -> T? | Awaitable[T?], /, *args: P.args, **kwargs: P.kwargs) -> Call + src/prefect/_waiters.py:206: error: No overload variant of "create_call" matches argument type "Any" [call-overload] + src/prefect/_waiters.py:206: note: Possible overload variants: + src/prefect/_waiters.py:206: note: def [P`5703] create_call(def (*Any, **Any) -> T? | Awaitable[T?], /, *args: P.args, **kwargs: P.kwargs) -> Call + src/prefect/runner/storage.py:217: error: Argument 1 to "deepcopy" has incompatible type "GitCredentials | Block | dict[str, Any]"; expected "dict[str, Any]" [arg-type] + src/prefect/runner/storage.py:264: error: Argument 1 to "deepcopy" has incompatible type "GitCredentials | Block | dict[str, Any]"; expected "dict[str, Any]" [arg-type] - src/prefect/runner/storage.py:222: error: TypedDict key must be a string literal; expected one of ("username", "access_token") [literal-required] - src/prefect/runner/storage.py:224: error: TypedDict key must be a string literal; expected one of ("username", "access_token") [literal-required] - src/prefect/runner/storage.py:268: error: TypedDict key must be a string literal; expected one of ("username", "access_token") [literal-required] - src/prefect/runner/storage.py:270: error: TypedDict key must be a string literal; expected one of ("username", "access_token") [literal-required] - src/prefect/deployments/runner.py:641: error: Incompatible types in assignment (expression has type "list[Iterable[str] | Iterable[int | float | timedelta] | int | float | timedelta | None]", variable has type "Iterable[str] | Iterable[int | float | timedelta] | int | float | timedelta | None") [assignment] + src/prefect/deployments/runner.py:641: error: List item 0 has incompatible type "Iterable[str] | Iterable[int | float | timedelta] | int | float | timedelta | None"; expected "int | float | timedelta" [list-item] - src/prefect/cli/deploy/_core.py:361: error: Argument 1 to "_PullStepStorage" has incompatible type "list[Any] | type[NotSet]"; expected "list[dict[str, Any]]" [arg-type] + src/prefect/cli/deploy/_core.py:361: error: Argument 1 to "_PullStepStorage" has incompatible type "Any | type[NotSet]"; expected "list[dict[str, Any]]" [arg-type] - src/prefect/cli/deploy/_core.py:421: error: Argument "pull_steps" to "_save_deployment_to_prefect_file" has incompatible type "list[Any] | type[NotSet] | None"; expected "list[dict[str, Any]] | None" [arg-type] + src/prefect/cli/deploy/_core.py:421: error: Argument "pull_steps" to "_save_deployment_to_prefect_file" has incompatible type "Any | type[NotSet] | None"; expected "list[dict[str, Any]] | None" [arg-type] mongo-python-driver (https://github.com/mongodb/mongo-python-driver) + bson/__init__.py:1332: error: Argument 2 to "_bson_to_dict" has incompatible type "CodecOptions[Any] | CodecOptions[Any]"; expected "CodecOptions[dict[str, Any]]" [arg-type] + bson/__init__.py:1378: error: Unused "type: ignore" comment [unused-ignore] + bson/__init__.py:1378: error: Argument 2 to "_bson_to_dict" has incompatible type "CodecOptions[_DocumentType] | CodecOptions[dict[str, Any]]"; expected "CodecOptions[dict[str, Any]]" [arg-type] + bson/__init__.py:1378: note: Error code "arg-type" not covered by "type: ignore" comment + pymongo/auth_oidc_shared.py:33: error: No overload variant of "field" matches argument type "None" [call-overload] + pymongo/auth_oidc_shared.py:33: note: Possible overload variant: + pymongo/auth_oidc_shared.py:33: note: def field(*, default: list[str], default_factory: Literal[_MISSING_TYPE.MISSING] = ..., init: bool = ..., repr: bool = ..., hash: bool | None = ..., compare: bool = ..., metadata: Mapping[Any, Any] | None = ..., kw_only: bool | Literal[_MISSING_TYPE.MISSING] = ..., doc: str | None = ...) -> list[str] + pymongo/synchronous/change_stream.py:146: error: Argument 1 to "deepcopy" has incompatible type "Mapping[str, Any] | None"; expected "Mapping[str, Any]" [arg-type] + pymongo/asynchronous/change_stream.py:146: error: Argument 1 to "deepcopy" has incompatible type "Mapping[str, Any] | None"; expected "Mapping[str, Any]" [arg-type] pydantic (https://github.com/pydantic/pydantic) + pydantic/deprecated/copy_internals.py:110: error: Argument 1 to "deepcopy" has incompatible type "dict[str, Any] | None"; expected "dict[str, Any]" [arg-type] + pydantic/deprecated/copy_internals.py:111: error: Argument 1 to "deepcopy" has incompatible type "dict[str, Any] | None"; expected "dict[str, Any]" [arg-type] mkosi (https://github.com/systemd/mkosi) + mkosi/user.py:45:23: error: No overload variant of "getenv" matches argument types "str", "Path" [call-overload] + mkosi/user.py:45:23: note: Possible overload variant: + mkosi/user.py:45:23: note: def getenv(key: str, default: str) -> str + mkosi/mounts.py:58:21: error: Argument 1 to "enter_context" of "_BaseExitStack" has incompatible type "TemporaryDirectory[str]"; expected "AbstractContextManager[PathLike[str], bool | None]" [arg-type] + mkosi/mounts.py:69:17: error: Argument 1 to "enter_context" of "_BaseExitStack" has incompatible type "TemporaryDirectory[str]"; expected "AbstractContextManager[PathLike[str], bool | None]" [arg-type] + mkosi/mounts.py:110:29: error: Argument 1 to "enter_context" of "_BaseExitStack" has incompatible type "TemporaryDirectory[str]"; expected "AbstractContextManager[PathLike[str], bool | None]" [arg-type] + mkosi/mounts.py:120:25: error: Argument 1 to "enter_context" of "_BaseExitStack" has incompatible type "TemporaryDirectory[str]"; expected "AbstractContextManager[PathLike[str], bool | None]" [arg-type] + mkosi/qemu.py:865:34: error: Argument 1 to "enter_context" of "_BaseExitStack" has incompatible type "TemporaryDirectory[str]"; expected "AbstractContextManager[PathLike[str], bool | None]" [arg-type] + mkosi/qemu.py:1382:46: error: Argument 1 to "enter_context" of "_BaseExitStack" has incompatible type "TemporaryDirectory[str]"; expected "AbstractContextManager[PathLike[str], bool | None]" [arg-type] + mkosi/__init__.py:563:21: error: Argument 1 to "enter_context" of "_BaseExitStack" has incompatible type "TemporaryDirectory[str]"; expected "AbstractContextManager[PathLike[str], bool | None]" [arg-type] + mkosi/__init__.py:2542:17: error: No overload variant of "get" of "dict" matches argument types "str", "Path" [call-overload] + mkosi/__init__.py:2542:17: note: Possible overload variant: + mkosi/__init__.py:2542:17: note: def get(self, str, str, /) -> str + mkosi/__init__.py:4811:17: error: Argument 1 to "enter_context" of "_BaseExitStack" has incompatible type "TemporaryDirectory[str]"; expected "AbstractContextManager[PathLike[str], bool | None]" [arg-type] + mkosi/__init__.py:4827:17: error: Argument 1 to "enter_context" of "_BaseExitStack" has incompatible type "TemporaryDirectory[str]"; expected "AbstractContextManager[PathLike[str], bool | None]" [arg-type] + mkosi/__init__.py:5217:21: error: Argument 1 to "enter_context" of "_BaseExitStack" has incompatible type "TemporaryDirectory[str]"; expected "AbstractContextManager[PathLike[str], bool | None]" [arg-type] bandersnatch (https://github.com/pypa/bandersnatch) + src/bandersnatch/verify.py: note: In function "metadata_verify": + src/bandersnatch/verify.py:271: error: No overload variant of "getfloat" of "RawConfigParser" matches argument types "str", "str", "None" [call-overload] + src/bandersnatch/verify.py:271: note: Possible overload variant: + src/bandersnatch/verify.py:271: note: def getfloat(self, section: str, option: str, *, raw: bool = ..., vars: Mapping[str, str] | None = ..., fallback: float = ...) -> float + src/bandersnatch/main.py: note: In function "async_main": + src/bandersnatch/main.py:160: error: No overload variant of "getfloat" of "RawConfigParser" matches argument types "str", "str", "None" [call-overload] + src/bandersnatch/main.py:160: note: Possible overload variant: + src/bandersnatch/main.py:160: note: def getfloat(self, section: str, option: str, *, raw: bool = ..., vars: Mapping[str, str] | None = ..., fallback: float = ...) -> float cibuildwheel (https://github.com/pypa/cibuildwheel) + cibuildwheel/util/file.py:19: error: No overload variant of "get" of "_Environ" matches argument types "str", "Path" [call-overload] + cibuildwheel/util/file.py:19: note: Possible overload variant: + cibuildwheel/util/file.py:19: note: def get(self, key: str, default: str) -> str + cibuildwheel/platforms/android.py:356: error: No overload variant of "copy" matches argument types "Path", "Path" [call-overload] + cibuildwheel/platforms/android.py:356: note: Possible overload variant: + cibuildwheel/platforms/android.py:356: note: def copy(src: str | PathLike[str], dst: str, *, follow_symlinks: bool = ...) -> str aiohttp (https://github.com/aio-libs/aiohttp) + aiohttp/multipart.py:279:50: error: No overload variant of "get" of "MultiDictProxy" matches argument types "istr", "None" [call-overload] + aiohttp/multipart.py:279:50: note: Possible overload variant: + aiohttp/multipart.py:279:50: note: def get(self, str, /, default: str) -> str + aiohttp/multipart.py:279:50: note: See https://mypy.rtfd.io/en/stable/_refs.html#code-call-overload for more info colour (https://github.com/colour-science/colour) + colour/algebra/common.py:221: error: Argument 1 to "optional" has incompatible type "Literal['Numpy', 'Ignore', 'Warning', 'Raise', 'Ignore Zero Conversion', 'Warning Zero Conversion', 'Ignore Limit Conversion', 'Warning Limit Conversion', 'Replace With Epsilon', 'Warning Replace With Epsilon'] | None"; expected "Literal['Numpy'] | None" [arg-type] + colour/algebra/common.py:221: error: Argument 2 to "optional" has incompatible type "Literal['Numpy', 'Ignore', 'Warning', 'Raise', 'Ignore Zero Conversion', 'Warning Zero Conversion', 'Ignore Limit Conversion', 'Warning Limit Conversion', 'Replace With Epsilon', 'Warning Replace With Epsilon']"; expected "Literal['Numpy']" [arg-type] - colour/io/luts/operator.py:257: error: Incompatible types in assignment (expression has type "object", variable has type "Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | str | _NestedSequence[complex | bytes | str]") [assignment] - colour/io/luts/operator.py:259: error: Incompatible types in assignment (expression has type "object", variable has type "Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | str | _NestedSequence[complex | bytes | str]") [assignment] + colour/io/luts/operator.py:257: error: Argument 1 to "optional" has incompatible type "Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | bytes | str | _NestedSequence[complex | bytes | str] | None"; expected "_SupportsArray[dtype[Any]] | None" [arg-type] + colour/io/luts/operator.py:259: error: Argument 1 to "optional" has incompatible type "Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | bytes | str | _NestedSequence[complex | bytes | str] | None"; expected "_SupportsArray[dtype[Any]] | None" [arg-type] - colour/io/luts/lut.py:161: error: Incompatible types in assignment (expression has type "object", variable has type "Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | str | _NestedSequence[complex | bytes | str]") [assignment] - colour/io/luts/lut.py:163: error: Incompatible types in assignment (expression has type "object", variable has type "Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | str | _NestedSequence[complex | bytes | str]") [assignment] + colour/io/luts/lut.py:161: error: Argument 1 to "optional" has incompatible type "Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | bytes | str | _NestedSequence[complex | bytes | str] | None"; expected "_SupportsArray[dtype[Any]] | None" [arg-type] + colour/io/luts/lut.py:163: error: Argument 1 to "optional" has incompatible type "Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | bytes | str | _NestedSequence[complex | bytes | str] | None"; expected "_SupportsArray[dtype[Any]] | None" [arg-type] - colour/io/luts/lut.py:1419: error: Argument 1 to "tile" has incompatible type "Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | bytes | str | _NestedSequence[complex | bytes | str] | None"; expected "_SupportsArray[dtype[signedinteger[_8Bit] | signedinteger[_16Bit] | signedinteger[_32Bit] | signedinteger[_64Bit] | unsignedinteger[_8Bit] | unsignedinteger[_16Bit] | unsignedinteger[_32Bit] | unsignedinteger[_64Bit] | Any]] | _NestedSequence[_SupportsArray[dtype[signedinteger[_8Bit] | signedinteger[_16Bit] | signedinteger[_32Bit] | signedinteger[_64Bit] | unsignedinteger[_8Bit] | unsignedinteger[_16Bit] | unsignedinteger[_32Bit] | unsignedinteger[_64Bit] | Any]]]" [arg-type] + colour/io/luts/lut.py:1433: error: No overload variant of "pad" matches argument types "ndarray[Any, Any]", "tuple[int, Any | signedinteger[_8Bit] | signedinteger[_16Bit] | signedinteger[_32Bit] | signedinteger[_64Bit] | unsignedinteger[_8Bit] | unsignedinteger[_16Bit] | unsignedinteger[_32Bit] | unsignedinteger[_64Bit]]", "str", "float" [call-overload] + colour/io/luts/lut.py:1433: note: Possible overload variants: + colour/io/luts/lut.py:1433: note: def [_ScalarT: generic[Any]] pad(array: _SupportsArray[dtype[_ScalarT]] | _NestedSequence[_SupportsArray[dtype[_ScalarT]]], pad_width: _SupportsArray[dtype[integer[Any]]] | _NestedSequence[_SupportsArray[dtype[integer[Any]]]] | int | _NestedSequence[int], mode: Literal['constant', 'edge', 'linear_ramp', 'maximum', 'mean', 'median', 'minimum', 'reflect', 'symmetric', 'wrap', 'empty'] = ..., *, stat_length: _SupportsArray[dtype[integer[Any]]] | _NestedSequence[_SupportsArray[dtype[integer[Any]]]] | int | _NestedSequence[int] | None = ..., constant_values: Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | bytes | str | _NestedSequence[complex | bytes | str] = ..., end_values: Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | bytes | str | _NestedSequence[complex | bytes | str] = ..., reflect_type: Literal['odd', 'even'] = ...) -> ndarray[tuple[Any, ...], dtype[_ScalarT]] + colour/io/luts/lut.py:1433: note: def pad(array: Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | bytes | str | _NestedSequence[complex | bytes | str], pad_width: _SupportsArray[dtype[integer[Any]]] | _NestedSequence[_SupportsArray[dtype[integer[Any]]]] | int | _NestedSequence[int], mode: Literal['constant', 'edge', 'linear_ramp', 'maximum', 'mean', 'median', 'minimum', 'reflect', 'symmetric', 'wrap', 'empty'] = ..., *, stat_length: _SupportsArray[dtype[integer[Any]]] | _NestedSequence[_SupportsArray[dtype[integer[Any]]]] | int | _NestedSequence[int] | None = ..., constant_values: Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | bytes | str | _NestedSequence[complex | bytes | str] = ..., end_values: Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | bytes | str | _NestedSequence[complex | bytes | str] = ..., reflect_type: Literal['odd', 'even'] = ...) -> ndarray[tuple[Any, ...], dtype[Any]] + colour/io/luts/lut.py:1433: note: def [_ScalarT: generic[Any]] pad(array: _SupportsArray[dtype[_ScalarT]] | _NestedSequence[_SupportsArray[dtype[_ScalarT]]], pad_width: _SupportsArray[dtype[integer[Any]]] | _NestedSequence[_SupportsArray[dtype[integer[Any]]]] | int | _NestedSequence[int], mode: _ModeFunc, **kwargs: Any) -> ndarray[tuple[Any, ...], dtype[_ScalarT]] + colour/io/luts/lut.py:1433: note: def pad(array: Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | bytes | str | _NestedSequence[complex | bytes | str], pad_width: _SupportsArray[dtype[integer[Any]]] | _NestedSequence[_SupportsArray[dtype[integer[Any]]]] | int | _NestedSequence[int], mode: _ModeFunc, **kwargs: Any) -> ndarray[tuple[Any, ...], dtype[Any]] + colour/difference/delta_e.py:264: error: Argument "default_factory" to "field" has incompatible type "Callable[[], None]"; expected "Callable[[], ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]]" [arg-type] + colour/difference/delta_e.py:264: error: Incompatible return value type (got "None", expected "ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]") [return-value] + colour/difference/delta_e.py:265: error: Argument "default_factory" to "field" has incompatible type "Callable[[], None]"; expected "Callable[[], ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]]" [arg-type] + colour/difference/delta_e.py:265: error: Incompatible return value type (got "None", expected "ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]") [return-value] + colour/difference/delta_e.py:266: error: Argument "default_factory" to "field" has incompatible type "Callable[[], None]"; expected "Callable[[], ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]]" [arg-type] + colour/difference/delta_e.py:266: error: Incompatible return value type (got "None", expected "ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]") [return-value] + colour/difference/delta_e.py:267: error: Argument "default_factory" to "field" has incompatible type "Callable[[], None]"; expected "Callable[[], ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]]" [arg-type] + colour/difference/delta_e.py:267: error: Incompatible return value type (got "None", expected "ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]") [return-value] + colour/difference/delta_e.py:268: error: Argument "default_factory" to "field" has incompatible type "Callable[[], None]"; expected "Callable[[], ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]]" [arg-type] + colour/difference/delta_e.py:268: error: Incompatible return value type (got "None", expected "ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]") [return-value] + colour/difference/delta_e.py:269: error: Argument "default_factory" to "field" has incompatible type "Callable[[], None]"; expected "Callable[[], ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]]" [arg-type] + colour/difference/delta_e.py:269: error: Incompatible return value type (got "None", expected "ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]") [return-value] + colour/difference/delta_e.py:270: error: Argument "default_factory" to "field" has incompatible type "Callable[[], None]"; expected "Callable[[], ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]]" [arg-type] + colour/difference/delta_e.py:270: error: Incompatible return value type (got "None", expected "ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]") [return-value] + colour/corresponding/datasets/breneman1987.py:82: error: Argument "default_factory" to "field" has incompatible type "Callable[[], None]"; expected "Callable[[], ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]]" [arg-type] + colour/corresponding/datasets/breneman1987.py:82: error: Incompatible return value type (got "None", expected "ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]") [return-value] + colour/corresponding/datasets/breneman1987.py:83: error: Argument "default_factory" to "field" has incompatible type "Callable[[], None]"; expected "Callable[[], ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]]" [arg-type] + colour/corresponding/datasets/breneman1987.py:83: error: Incompatible return value type (got "None", expected "ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]") [return-value] + colour/corresponding/datasets/breneman1987.py:84: error: Argument "default_factory" to "field" has incompatible type "Callable[[], None]"; expected "Callable[[], ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]]" [arg-type] + colour/corresponding/datasets/breneman1987.py:84: error: Incompatible return value type (got "None", expected "ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]") [return-value] + colour/corresponding/datasets/breneman1987.py:126: error: Argument "default_factory" to "field" has incompatible type "Callable[[], None]"; expected "Callable[[], ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]]" [arg-type] + colour/corresponding/datasets/breneman1987.py:126: error: Incompatible return value type (got "None", expected "ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]") [return-value] + colour/corresponding/datasets/breneman1987.py:127: error: Argument "default_factory" to "field" has incompatible type "Callable[[], None]"; expected "Callable[[], ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]]" [arg-type] + colour/corresponding/datasets/breneman1987.py:127: error: Incompatible return value type (got "None", expected "ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]") [return-value] + colour/corresponding/datasets/breneman1987.py:128: error: Argument "default_factory" to "field" has incompatible type "Callable[[], None]"; expected "Callable[[], ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]]" [arg-type] + colour/corresponding/datasets/breneman1987.py:128: error: Incompatible return value type (got "None", expected "ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]") [return-value] + colour/appearance/llab.py:206: error: Argument "default_factory" to "field" has incompatible type "Callable[[], None]"; expected "Callable[[], ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]]" [arg-type] + colour/appearance/llab.py:206: error: Incompatible return value type (got "None", expected "ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]") [return-value] + colour/appearance/llab.py:207: error: Argument "default_factory" to "field" has incompatible type "Callable[[], None]"; expected "Callable[[], ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]]" [arg-type] + colour/appearance/llab.py:207: error: Incompatible return value type (got "None", expected "ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]") [return-value] + colour/appearance/llab.py:208: error: Argument "default_factory" to "field" has incompatible type "Callable[[], None]"; expected "Callable[[], ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]]" [arg-type] + colour/appearance/llab.py:208: error: Incompatible return value type (got "None", expected "ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]") [return-value] + colour/appearance/llab.py:209: error: Argument "default_factory" to "field" has incompatible type "Callable[[], None]"; expected "Callable[[], ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]]" [arg-type] + colour/appearance/llab.py:209: error: Incompatible return value type (got "None", expected "ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]") [return-value] + colour/appearance/llab.py:210: error: Argument "default_factory" to "field" has incompatible type "Callable[[], None]"; expected "Callable[[], ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]]" [arg-type] + colour/appearance/llab.py:210: error: Incompatible return value type (got "None", expected "ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]") [return-value] + colour/appearance/llab.py:211: error: Argument "default_factory" to "field" has incompatible type "Callable[[], None]"; expected "Callable[[], ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]]" [arg-type] + colour/appearance/llab.py:211: error: Incompatible return value type (got "None", expected "ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]") [return-value] + colour/appearance/llab.py:212: error: Argument "default_factory" to "field" has incompatible type "Callable[[], None]"; expected "Callable[[], ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]]" [arg-type] + colour/appearance/llab.py:212: error: Incompatible return value type (got "None", expected "ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]") [return-value] + colour/appearance/llab.py:213: error: Argument "default_factory" to "field" has incompatible type "Callable[[], None]"; expected "Callable[[], ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]]" [arg-type] + colour/appearance/llab.py:213: error: Incompatible return value type (got "None", expected "ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]") [return-value] + colour/appearance/llab.py:255: error: Argument "default_factory" to "field" has incompatible type "Callable[[], None]"; expected "Callable[[], ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]]" [arg-type] ... (truncated 316 lines) ... anyio (https://github.com/agronholm/anyio) + src/anyio/from_thread.py:464: error: No overload variant of "field" matches argument types "bool", "None" [call-overload] + src/anyio/from_thread.py:464: note: Possible overload variant: + src/anyio/from_thread.py:464: note: def field(*, default: AbstractContextManager[BlockingPortal, bool | None], default_factory: Literal[_MISSING_TYPE.MISSING] = ..., init: bool = ..., repr: bool = ..., hash: bool | None = ..., compare: bool = ..., metadata: Mapping[Any, Any] | None = ..., kw_only: bool | Literal[_MISSING_TYPE.MISSING] = ..., doc: str | None = ...) -> AbstractContextManager[BlockingPortal, bool | None] zulip (https://github.com/zulip/zulip) + zerver/actions/streams.py:779: error: No overload variant of "get" of "Mapping" matches argument types "Any", "None" [call-overload] + zerver/actions/streams.py:779: note: Possible overload variant: + zerver/actions/streams.py:779: note: def get(self, str, str, /) -> str + zerver/webhooks/taiga/view.py:170: error: Argument 1 to "tame" of "WildValue" has incompatible type "Callable[[str, object], str]"; expected "Callable[[str, object], dict[str, str | bool | None]]" [arg-type] + zerver/webhooks/taiga/view.py:185: error: Argument 1 to "tame" of "WildValue" has incompatible type "Callable[[str, object], str]"; expected "Callable[[str, object], dict[str, str | bool | None]]" [arg-type] + zerver/webhooks/taiga/view.py:186: error: Argument 1 to "tame" of "WildValue" has incompatible type "Callable[[str, object], str]"; expected "Callable[[str, object], dict[str, str | bool | None]]" [arg-type] + zerver/webhooks/taiga/view.py:196: error: Argument 1 to "tame" of "WildValue" has incompatible type "Callable[[str, object], str]"; expected "Callable[[str, object], dict[str, str | bool | None]]" [arg-type] + zerver/webhooks/taiga/view.py:197: error: Argument 1 to "tame" of "WildValue" has incompatible type "Callable[[str, object], str]"; expected "Callable[[str, object], dict[str, str | bool | None]]" [arg-type] + zerver/webhooks/taiga/view.py:283: error: Argument 1 to "tame" of "WildValue" has incompatible type "Callable[[str, object], str]"; expected "Callable[[str, object], dict[str, str | bool | None]]" [arg-type] core (https://github.com/home-assistant/core) + homeassistant/setup.py:176: error: No overload variant of "pop" of "dict" matches argument types "str", "None" [call-overload] + homeassistant/setup.py:176: note: Possible overload variant: + homeassistant/setup.py:176: note: def pop(self, str, Future[bool], /) -> Future[bool] + homeassistant/components/media_player/browse_media.py:193: error: No overload variant of "field" matches argument type "None" [call-overload] + homeassistant/components/media_player/browse_media.py:193: note: Possible overload variant: + homeassistant/components/media_player/browse_media.py:193: note: def field(*, default: list[MediaClass], default_factory: Literal[_MISSING_TYPE.MISSING] = ..., init: bool = ..., repr: bool = ..., hash: bool | None = ..., compare: bool = ..., metadata: Mapping[Any, Any] | None = ..., kw_only: bool | Literal[_MISSING_TYPE.MISSING] = ...) -> list[MediaClass] + homeassistant/helpers/script.py:658: error: Argument 1 to "copy" has incompatible type "list[str] | None"; expected "list[str]" [arg-type] - homeassistant/components/todo/__init__.py:251: error: Returning Any from function declared to return "int | None" [no-any-return] + homeassistant/components/conversation/chat_log.py:223: error: No overload variant of "field" matches argument type "None" [call-overload] + homeassistant/components/conversation/chat_log.py:223: note: Possible overload variant: + homeassistant/components/conversation/chat_log.py:223: note: def field(*, default: list[Attachment], default_factory: Literal[_MISSING_TYPE.MISSING] = ..., init: bool = ..., repr: bool = ..., hash: bool | None = ..., compare: bool = ..., metadata: Mapping[Any, Any] | None = ..., kw_only: bool | Literal[_MISSING_TYPE.MISSING] = ...) -> list[Attachment] + homeassistant/components/emulated_hue/config.py:167: error: Unused "type: ignore" comment [unused-ignore] + homeassistant/components/emulated_hue/config.py:167: error: No overload variant of "Store" matches argument types "HomeAssistant", "str", "str" [call-overload] + homeassistant/components/emulated_hue/config.py:167: note: Error code "call-overload" not covered by "type: ignore" comment + homeassistant/components/emulated_hue/config.py:167: note: Possible overload variant: + homeassistant/components/emulated_hue/config.py:167: note: def __init__(self, hass: HomeAssistant, version: int, key: str, private: bool = ..., *, atomic_writes: bool = ..., encoder: type[JSONEncoder] | None = ..., minor_version: int = ..., read_only: bool = ..., serialize_in_event_loop: bool = ...) -> Store[Any] + homeassistant/components/verisure/coordinator.py:100: error: No overload variant of "next" matches argument types "Generator[Any, None, None]", "None" [call-overload] + homeassistant/components/verisure/coordinator.py:100: note: Possible overload variants: + homeassistant/components/verisure/coordinator.py:100: note: def next(SupportsNext[dict[Any, Any]], dict[Any, Any], /) -> dict[Any, Any] + homeassistant/components/verisure/coordinator.py:100: note: def next(SupportsNext[list[Any]], list[Any], /) -> list[Any] + homeassistant/components/zwave_js/helpers.py:252: error: No overload variant of "next" matches argument types "Generator[ConfigEntry[Any], None, None]", "None" [call-overload] + homeassistant/components/zwave_js/helpers.py:252: note: Possible overload variant: + homeassistant/components/zwave_js/helpers.py:252: note: def next(SupportsNext[ConfigEntry[ZwaveJSData]], ConfigEntry[ZwaveJSData], /) -> ConfigEntry[ZwaveJSData] + homeassistant/components/zwave_js/helpers.py:300: error: No overload variant of "next" matches argument types "Generator[ConfigEntry[Any], None, None]", "None" [call-overload] + homeassistant/components/zwave_js/helpers.py:300: note: Possible overload variant: + homeassistant/components/zwave_js/helpers.py:300: note: def next(SupportsNext[ConfigEntry[ZwaveJSData]], ConfigEntry[ZwaveJSData], /) -> ConfigEntry[ZwaveJSData] + homeassistant/components/rachio/calendar.py:111: error: No overload variant of "next" matches argument types "Iterator[dict[str, Any]]", "None" [call-overload] + homeassistant/components/rachio/calendar.py:111: note: Possible overload variant: + homeassistant/components/rachio/calendar.py:111: note: def next(SupportsNext[dict[str, Any]], dict[str, Any], /) -> dict[str, Any] + homeassistant/components/zwave_js/config_flow.py:505: error: No overload variant of "next" matches argument types "Generator[ConfigEntry[Any], None, None]", "None" [call-overload] + homeassistant/components/zwave_js/config_flow.py:505: note: Possible overload variant: + homeassistant/components/zwave_js/config_flow.py:505: note: def next(SupportsNext[ConfigEntry[ZwaveJSData]], ConfigEntry[ZwaveJSData], /) -> ConfigEntry[ZwaveJSData] + homeassistant/components/zwave_js/config_flow.py:1529: error: No overload variant of "next" matches argument types "Generator[ConfigEntry[Any], None, None]", "None" [call-overload] + homeassistant/components/zwave_js/config_flow.py:1529: note: Possible overload variant: + homeassistant/components/zwave_js/config_flow.py:1529: note: def next(SupportsNext[ConfigEntry[Any]], ConfigEntry[Any], /) -> ConfigEntry[Any] + homeassistant/components/smartthings/fan.py:223: error: Argument 1 to "percentage_to_ordered_list_item" has incompatible type "list[int]"; expected "list[list[Any]]" [arg-type] + homeassistant/components/mqtt/diagnostics.py:111: error: Argument 1 to "async_redact_data" has incompatible type "datetime | Collection[Any]"; expected "Collection[Any]" [arg-type] + homeassistant/components/mqtt/config_flow.py:3769: error: Argument 1 to "deepcopy" has incompatible type "dict[str, Any] | None"; expected "dict[str, Any]" [arg-type] + homeassistant/components/tado/climate.py:796: error: No overload variant of "get" of "dict" matches argument types "str", "dict[Never, Never]" [call-overload] + homeassistant/components/tado/climate.py:796: note: Possible overload variant: + homeassistant/components/tado/climate.py:796: note: def get(self, str, str, /) -> str + homeassistant/components/tado/climate.py:807: error: No overload variant of "get" of "dict" matches argument types "str", "dict[Never, Never]" [call-overload] + homeassistant/components/tado/climate.py:807: note: Possible overload variant: + homeassistant/components/tado/climate.py:807: note: def get(self, str, str, /) -> str + homeassistant/components/zha/helpers.py:1042: error: No overload variant of "field" matches argument type "None" [call-overload] + homeassistant/components/zha/helpers.py:1042: note: Possible overload variant: + homeassistant/components/zha/helpers.py:1042: note: def field(*, default: ConfigEntry[Any], default_factory: Literal[_MISSING_TYPE.MISSING] = ..., init: bool = ..., repr: bool = ..., hash: bool | None = ..., compare: bool = ..., metadata: Mapping[Any, Any] | None = ..., kw_only: bool | Literal[_MISSING_TYPE.MISSING] = ...) -> ConfigEntry[Any] schemathesis (https://github.com/schemathesis/schemathesis) + src/schemathesis/generation/coverage.py: note: In member "generate_from_schema" of class "CoverageContext": + src/schemathesis/generation/coverage.py:300: error: Argument 1 to "deepclone" has incompatible type "dict[Any, Any] | bool"; expected "dict[Any, Any]" [arg-type] Tanjun (https://github.com/FasterSpeeding/Tanjun) + tanjun/_internal/localisation.py:88: error: No overload variant of "pop" of "dict" matches argument types "str", "None" [call-overload] + tanjun/_internal/localisation.py:88: note: Possible overload variant: + tanjun/_internal/localisation.py:88: note: def pop(self, str, str, /) -> str + tanjun/commands/slash.py:3136: error: No overload variant of "resolve_to_member" of "SlashOption" matches argument type "None" [call-overload] + tanjun/commands/slash.py:3136: note: Possible overload variant: + tanjun/commands/slash.py:3136: note: def resolve_to_member(self, *, default: InteractionMember) -> InteractionMember + tanjun/clients.py:2428: error: No overload variant of "get_type_dependency" of "Client" matches argument types "type[SingleStoreCache[AuthorizationApplication]]", "None" [call-overload] + tanjun/clients.py:2428: note: Possible overload variant: + tanjun/clients.py:2428: note: def get_type_dependency(self, type[SingleStoreCache[Application]], /, *, default: SingleStoreCache[Application]) -> SingleStoreCache[Application] altair (https://github.com/vega/altair) + altair/datasets/_cache.py:309: error: No overload variant of "get" of "_Environ" matches argument types "str", "Path" [call-overload] + altair/datasets/_cache.py:309: note: Possible overload variant: + altair/datasets/_cache.py:309: note: def get(self, key: str, default: str) -> str + altair/vegalite/v6/api.py:3671: error: No overload variant of "pop" of "dict" matches argument types "str", "UndefinedType" [call-overload] + altair/vegalite/v6/api.py:3671: note: Possible overload variant: + altair/vegalite/v6/api.py:3671: note: def pop(self, str, str, /) -> str + tests/vegalite/v6/schema/test_channels.py:56: error: Unused "type: ignore" comment [unused-ignore] + tests/vegalite/v6/schema/test_channels.py:56: error: No overload variant of <list> matches argument types "list[int]", "tuple[date, ...]" [call-overload] + tests/vegalite/v6/schema/test_channels.py:56: note: Error code "call-overload" not covered by "type: ignore" comment + tests/vegalite/v6/schema/test_channels.py:56: note: Possible overload variants: + tests/vegalite/v6/schema/test_channels.py:56: note: def <list>(*str) -> list[str] + tests/vegalite/v6/schema/test_channels.py:56: note: def <list>(*bool) -> list[bool] + tests/vegalite/v6/schema/test_channels.py:56: note: def <list>(*float) -> list[float] + tests/vegalite/v6/schema/test_channels.py:56: note: def <list>(*DateTime | date) -> list[DateTime | date] nionutils (https://github.com/nion-software/nionutils) + nion/utils/StructuredModel.py:195: error: Argument 1 to "deepcopy" has incompatible type "str | dict[str, Any]"; expected "dict[str, Any]" [arg-type] + nion/utils/StructuredModel.py:300: error: Argument 1 to "deepcopy" has incompatible type "str | dict[str, Any]"; expected "dict[str, Any]" [arg-type] sphinx (https://github.com/sphinx-doc/sphinx) + sphinx/theming.py: note: In function "_convert_theme_conf": + sphinx/theming.py:438:42: error: No overload variant of "get" of "RawConfigParser" matches argument types "str", "str", "None" [call-overload] + sphinx/theming.py:438:42: note: Possible overload variant: + sphinx/theming.py:438:42: note: def get(self, section: str, option: str, *, raw: bool = ..., vars: Mapping[str, str] | None = ..., fallback: str) -> str | Any + sphinx/theming.py:441:39: error: No overload variant of "get" of "RawConfigParser" matches argument types "str", "str", "None" [call-overload] + sphinx/theming.py:441:39: note: Possible overload variant: + sphinx/theming.py:441:39: note: def get(self, section: str, option: str, *, raw: bool = ..., vars: Mapping[str, str] | None = ..., fallback: str) -> str | Any pytest (https://github.com/pytest-dev/pytest) + src/_pytest/mark/structures.py:257: error: No overload variant of "field" matches argument types "None", "bool" [call-overload] + src/_pytest/mark/structures.py:257: note: Possible overload variant: + src/_pytest/mark/structures.py:257: note: def field(*, default: Sequence[str], default_factory: Literal[_MISSING_TYPE.MISSING] = ..., init: bool = ..., repr: bool = ..., hash: bool | None = ..., compare: bool = ..., metadata: Mapping[Any, Any] | None = ..., kw_only: bool | Literal[_MISSING_TYPE.MISSING] = ...) -> Sequence[str] steam.py (https://github.com/Gobot1234/steam.py) - steam/id.py:462: error: Argument "instance" to "ID" has incompatible type "int"; expected "Instance | None" [arg-type] + steam/id.py:462: error: No overload variant of "ID" matches argument types "int", "int", "Universe", "int" [call-overload] + steam/id.py:462: note: Possible overload variant: + steam/id.py:462: note: def __init__(self, id: SupportsInt | SupportsIndex | str | bytes, *, type: Any | None = ..., universe: Universe | None = ..., instance: Instance | None = ...) -> ID[Any] - steam/id.py:513: error: Argument "universe" to "ID" has incompatible type "int"; expected "Universe | None" [arg-type] - steam/id.py:513: error: Argument "instance" to "ID" has incompatible type "int"; expected "Instance | None" [arg-type] + steam/id.py:513: error: No overload variant of "ID" matches argument types "ID32", "int", "int", "int" [call-overload] + steam/id.py:513: note: Possible overload variant: + steam/id.py:513: note: def __init__(self, id: SupportsInt | SupportsIndex | str | bytes, *, type: Any | None = ..., universe: Universe | None = ..., instance: Instance | None = ...) -> ID[Any] + steam/state.py:1392: error: Unused "type: ignore" comment [unused-ignore] sympy (https://github.com/sympy/sympy) + sympy/matrices/matrixbase.py:1590: error: Unused "type: ignore" comment [unused-ignore] + sympy/matrices/matrixbase.py:5274: error: List comprehension has incompatible type List[int]; expected List[Expr | Literal[0]] [misc] + sympy/matrices/matrixbase.py:5274: error: Argument 1 to "sum" has incompatible type "list[Expr]"; expected "Iterable[bool]" [arg-type] + sympy/matrices/matrixbase.py:5286: error: List comprehension has incompatible type List[int]; expected List[Expr | Literal[0]] [misc] + sympy/matrices/matrixbase.py:5286: error: Argument 1 to "sum" has incompatible type "list[Expr]"; expected "Iterable[bool]" [arg-type] urllib3 (https://github.com/urllib3/urllib3) + test/test_util.py:534: error: Unused "type: ignore" comment [unused-ignore] + test/test_util.py:534: error: No overload variant of <list> matches argument types "Callable[[_TestFuncT], _TestFuncT]", "Callable[[_TestFuncT], _TestFuncT]" [call-overload] + test/test_util.py:534: note: Error code "call-overload" not covered by "type: ignore" comment + test/test_util.py:534: note: Possible overload variant: + test/test_util.py:534: note: def <list>(*MarkDecorator | Mark) -> list[MarkDecorator | Mark] + test/test_util.py:539: error: Unused "type: ignore" comment [unused-ignore] + test/test_util.py:539: error: No overload variant of <list> matches argument types "Callable[[_TestFuncT], _TestFuncT]", "Callable[[_TestFuncT], _TestFuncT]" [call-overload] + test/test_util.py:539: note: Error code "call-overload" not covered by "type: ignore" comment + test/test_util.py:539: note: Possible overload variant: + test/test_util.py:539: note: def <list>(*MarkDecorator | Mark) -> list[MarkDecorator | Mark] + test/test_util.py:544: error: Unused "type: ignore" comment [unused-ignore] + test/test_util.py:544: error: No overload variant of <list> matches argument types "Callable[[_TestFuncT], _TestFuncT]", "Callable[[_TestFuncT], _TestFuncT]" [call-overload] + test/test_util.py:544: note: Error code "call-overload" not covered by "type: ignore" comment + test/test_util.py:544: note: Possible overload variant: + test/test_util.py:544: note: def <list>(*MarkDecorator | Mark) -> list[MarkDecorator | Mark] + test/test_util.py:549: error: Unused "type: ignore" comment [unused-ignore] + test/test_util.py:549: error: No overload variant of <list> matches argument types "Callable[[_TestFuncT], _TestFuncT]", "Callable[[_TestFuncT], _TestFuncT]" [call-overload] + test/test_util.py:549: note: Error code "call-overload" not covered by "type: ignore" comment + test/test_util.py:549: note: Possible overload variant: + test/test_util.py:549: note: def <list>(*MarkDecorator | Mark) -> list[MarkDecorator | Mark] + test/test_util.py:556: error: Unused "type: ignore" comment [unused-ignore] ... (truncated 458 lines) ...```
Collaborator
What is the issue this PR is attempting to fix? Could you add a test?
Author
kumar-ayan
commented
Jan 5, 2026
What is the issue this PR is attempting to fix? Could you add a test?
Issue: False positive when assigning bounded generic to union including the bound
Test case:
def upcast(arg: int) -> int:
return arg
def test[X: int](items: list[X]) -> list[X]:
_a: list[int] = list(items) # ✅️
_b: list[int] = [*items] # ✅️
_c: list[int] = [x for x in items] # ✅️
_1: list[str] | list[int] = list(items) # ❌️
_2: list[int] | list[str] = list(items) # ❌️
_3: list[str] | list[int] = [*items] # ❌️
_4: list[int] | list[str] = [*items] # ❌️
_5: list[str] | list[int] = [x for x in items] # ❌️
_6: list[int] | list[str] = [x for x in items] # ❌️
_7: list[str] | list[int] = [upcast(x) for x in items] # ✅️
_8: list[int] | list[str] = [upcast(x) for x in items] # ✅️
return items
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This commit fixes an issue where list constructions (literals, comprehensions) assigned to Union types (e.g., list[str] | list[int]) failed to correctly infer the specific list type, often defaulting to a generic or incorrect type.
Changes: