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Consider Any in selftype when checking overloads #20185

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@sterliakov sterliakov commented Nov 5, 2025 •
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See the added testcase. If the overload result is ambiguous due to Any in selftype, mypy should not arbitrary pick the first overload. Let's see what primer says first.

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@sterliakov
Erase to explicit Anys: when we erase to special_form, subsequent ove…
00ffdcb 
…rloads will pick the first overload again...
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@sterliakov sterliakov force-pushed the feature/st-overload-any-selftype branch from e7b431b to 75e4e22 Compare November 6, 2025 18:19
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@sterliakov sterliakov force-pushed the feature/st-overload-any-selftype branch from e096bf9 to 75e4e22 Compare November 7, 2025 00:27
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sterliakov commented Nov 7, 2025

Okay, this is worse than I hoped... The new errors are correct but rather unhelpful - numpy stubs apparently rely on this behaviour...

For example, the following:

x: np.ndarray
reveal_type(x)
reveal_type(x * 100)

only reveals ndarray both times because of the first overload ignoring Any in selftype:

https://github.com/numpy/numpy/blob/2b216b1a6072d28e4aa7b02a7e13e69713a20c5d/numpy/__init__.pyi#L3072

and the "compare erased types" logic does not kick in because there are -> Any overloads (not same type). With these changes applied the second reveal correctly changes to Any, but that certainly isn't helpful. I'm lost, I'll try to revisit this a bit later.

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github-actions bot commented Nov 7, 2025

Diff from mypy_primer, showing the effect of this PR on open source code:

colour (https://github.com/colour-science/colour)
+ colour/models/rgb/transfer_functions/rimm_romm_rgb.py:364: error: No overload variant of "__mul__" of "floating" matches argument type "Buffer"  [operator]
+ colour/models/rgb/transfer_functions/rimm_romm_rgb.py:364: note: Possible overload variants:
+ colour/models/rgb/transfer_functions/rimm_romm_rgb.py:364: note:     def __mul__(self, int | floating[_16Bit] | unsignedinteger[_8Bit] | signedinteger[_8Bit] | numpy.bool[builtins.bool], /) -> floating[_16Bit]
+ colour/models/rgb/transfer_functions/rimm_romm_rgb.py:364: note:     def __mul__(self, integer[Any] | floating[Any], /) -> floating[Any]
+ colour/models/rgb/transfer_functions/rimm_romm_rgb.py:364: note:     def __mul__(self, float, /) -> floating[_16Bit]
+ colour/models/rgb/transfer_functions/rimm_romm_rgb.py:364: note:     def __mul__(self, complex, /) -> complexfloating[Any, Any]
+ colour/models/rgb/transfer_functions/rimm_romm_rgb.py:364: error: No overload variant of "__mul__" of "floating" matches argument type "_SupportsArray[dtype[Any]]"  [operator]
+ colour/models/rgb/transfer_functions/rimm_romm_rgb.py:364: error: No overload variant of "__mul__" of "floating" matches argument type "_NestedSequence[_SupportsArray[dtype[Any]]]"  [operator]
+ colour/models/rgb/transfer_functions/rimm_romm_rgb.py:364: error: No overload variant of "__mul__" of "floating" matches argument type "str"  [operator]
+ colour/models/rgb/transfer_functions/rimm_romm_rgb.py:364: error: No overload variant of "__mul__" of "floating" matches argument type "_NestedSequence[complex | bytes | str]"  [operator]
+ colour/models/rgb/transfer_functions/rimm_romm_rgb.py:364: note:     def __mul__(self, int | floating[_16Bit] | unsignedinteger[_8Bit] | signedinteger[_8Bit] | numpy.bool[builtins.bool] | floating[_32Bit], /) -> floating[_32Bit]
+ colour/models/rgb/transfer_functions/rimm_romm_rgb.py:364: note:     def __mul__(self, float, /) -> floating[_32Bit]
+ colour/models/rgb/transfer_functions/rimm_romm_rgb.py:364: error: No overload variant of "__mul__" of "float64" matches argument type "Buffer"  [operator]
+ colour/models/rgb/transfer_functions/rimm_romm_rgb.py:364: note:     def __mul__(self, float | floating[_64Bit] | floating[_32Bit] | floating[_16Bit] | integer[Any] | numpy.bool[builtins.bool], /) -> float64
+ colour/models/rgb/transfer_functions/rimm_romm_rgb.py:364: note:     def __mul__(self, complexfloating[_64Bit, _64Bit], /) -> complex128
+ colour/models/rgb/transfer_functions/rimm_romm_rgb.py:364: note:     def [_NBit1: NBitBase, _NBit2: NBitBase] __mul__(self, complexfloating[_NBit1, _NBit2], /) -> complexfloating[_NBit1 | _64Bit, _NBit2 | _64Bit]
+ colour/models/rgb/transfer_functions/rimm_romm_rgb.py:364: note:     def __mul__(self, complex, /) -> float64 | complex128
+ colour/models/rgb/transfer_functions/rimm_romm_rgb.py:364: error: No overload variant of "__mul__" of "float64" matches argument type "_SupportsArray[dtype[Any]]"  [operator]
+ colour/models/rgb/transfer_functions/rimm_romm_rgb.py:364: error: No overload variant of "__mul__" of "float64" matches argument type "_NestedSequence[_SupportsArray[dtype[Any]]]"  [operator]
+ colour/models/rgb/transfer_functions/rimm_romm_rgb.py:364: error: No overload variant of "__mul__" of "float64" matches argument type "str"  [operator]
+ colour/models/rgb/transfer_functions/rimm_romm_rgb.py:364: error: No overload variant of "__mul__" of "float64" matches argument type "_NestedSequence[complex | bytes | str]"  [operator]
+ colour/models/rgb/transfer_functions/rimm_romm_rgb.py:364: note: Both left and right operands are unions
+ colour/models/rgb/transfer_functions/rimm_romm_rgb.py:368: error: Unsupported operand types for / ("Buffer" and "float")  [operator]
+ colour/models/rgb/transfer_functions/rimm_romm_rgb.py:368: error: Unsupported operand types for / ("_SupportsArray[dtype[Any]]" and "float")  [operator]
+ colour/models/rgb/transfer_functions/rimm_romm_rgb.py:368: error: Unsupported operand types for / ("_NestedSequence[_SupportsArray[dtype[Any]]]" and "float")  [operator]
+ colour/models/rgb/transfer_functions/rimm_romm_rgb.py:368: error: Unsupported operand types for / ("str" and "float")  [operator]
+ colour/models/rgb/transfer_functions/rimm_romm_rgb.py:368: error: Unsupported operand types for / ("_NestedSequence[complex | bytes | str]" and "float")  [operator]
+ colour/models/rgb/transfer_functions/rimm_romm_rgb.py:368: note: Left operand is of type "Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | str | _NestedSequence[complex | bytes | str]"
+ colour/io/image.py:350: error: Incompatible return value type (got "Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | str | _NestedSequence[complex | bytes | str]", expected "ndarray[tuple[Any, ...], dtype[signedinteger[_8Bit] | signedinteger[_16Bit] | signedinteger[_32Bit] | signedinteger[_64Bit] | unsignedinteger[_8Bit] | unsignedinteger[_16Bit] | unsignedinteger[_32Bit] | unsignedinteger[_64Bit] | floating[_16Bit] | floating[_32Bit] | float64]]")  [return-value]
+ colour/models/rgb/transfer_functions/sony.py:126: error: Unsupported operand types for <= ("int" and "Buffer")  [operator]
+ colour/models/rgb/transfer_functions/sony.py:126: error: Unsupported operand types for <= ("int" and "_SupportsArray[dtype[Any]]")  [operator]
+ colour/models/rgb/transfer_functions/sony.py:126: error: Unsupported operand types for <= ("int" and "_NestedSequence[_SupportsArray[dtype[Any]]]")  [operator]
+ colour/models/rgb/transfer_functions/sony.py:126: error: Unsupported operand types for <= ("int" and "complex")  [operator]
+ colour/models/rgb/transfer_functions/sony.py:126: error: Unsupported operand types for <= ("int" and "_NestedSequence[complex | bytes | str]")  [operator]
+ colour/models/rgb/transfer_functions/sony.py:126: note: Left operand is of type "Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | str | _NestedSequence[complex | bytes | str]"
+ colour/models/rgb/transfer_functions/sony.py:126: error: Unsupported operand types for >= ("str" and "int")  [operator]
+ colour/models/rgb/transfer_functions/sony.py:127: error: Unsupported operand types for + ("Buffer" and "float")  [operator]
+ colour/models/rgb/transfer_functions/sony.py:127: error: Unsupported operand types for + ("_SupportsArray[dtype[Any]]" and "float")  [operator]
+ colour/models/rgb/transfer_functions/sony.py:127: error: Unsupported operand types for + ("_NestedSequence[_SupportsArray[dtype[Any]]]" and "float")  [operator]
+ colour/models/rgb/transfer_functions/sony.py:127: error: Unsupported operand types for + ("_NestedSequence[complex | bytes | str]" and "float")  [operator]
+ colour/models/rgb/transfer_functions/sony.py:127: note: Left operand is of type "Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | str | _NestedSequence[complex | bytes | str]"
+ colour/models/rgb/transfer_functions/sony.py:127: error: Unsupported operand types for + ("str" and "float")  [operator]
+ colour/models/rgb/transfer_functions/sony.py:128: error: Unsupported operand types for * ("Buffer" and "int")  [operator]
+ colour/models/rgb/transfer_functions/sony.py:128: error: Unsupported operand types for * ("_SupportsArray[dtype[Any]]" and "int")  [operator]
+ colour/models/rgb/transfer_functions/sony.py:128: error: Unsupported operand types for * ("_NestedSequence[_SupportsArray[dtype[Any]]]" and "int")  [operator]
+ colour/models/rgb/transfer_functions/sony.py:128: error: Unsupported operand types for * ("_NestedSequence[complex | bytes | str]" and "int")  [operator]
+ colour/models/rgb/transfer_functions/sony.py:128: note: Left operand is of type "Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | str | _NestedSequence[complex | bytes | str]"
+ colour/models/rgb/transfer_functions/sony.py:128: error: Unsupported operand types for + ("str" and "float")  [operator]
+ colour/models/rgb/transfer_functions/sony.py:128: note: Left operand is of type "int | complex | str"
+ colour/models/rgb/transfer_functions/sony.py:399: error: Unsupported operand types for <= ("float" and "Buffer")  [operator]
+ colour/models/rgb/transfer_functions/sony.py:399: error: Unsupported operand types for <= ("float" and "_SupportsArray[dtype[Any]]")  [operator]
+ colour/models/rgb/transfer_functions/sony.py:399: error: Unsupported operand types for <= ("float" and "_NestedSequence[_SupportsArray[dtype[Any]]]")  [operator]
+ colour/models/rgb/transfer_functions/sony.py:399: error: Unsupported operand types for <= ("float" and "complex")  [operator]
+ colour/models/rgb/transfer_functions/sony.py:399: error: Unsupported operand types for <= ("float" and "_NestedSequence[complex | bytes | str]")  [operator]
+ colour/models/rgb/transfer_functions/sony.py:399: note: Left operand is of type "Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | str | _NestedSequence[complex | bytes | str]"
+ colour/models/rgb/transfer_functions/sony.py:399: error: Unsupported operand types for >= ("str" and "float")  [operator]
+ colour/models/rgb/transfer_functions/sony.py:400: error: Unsupported operand types for + ("Buffer" and "float")  [operator]
+ colour/models/rgb/transfer_functions/sony.py:400: error: Unsupported operand types for + ("_SupportsArray[dtype[Any]]" and "float")  [operator]
+ colour/models/rgb/transfer_functions/sony.py:400: error: Unsupported operand types for + ("_NestedSequence[_SupportsArray[dtype[Any]]]" and "float")  [operator]
+ colour/models/rgb/transfer_functions/sony.py:400: error: Unsupported operand types for + ("_NestedSequence[complex | bytes | str]" and "float")  [operator]
+ colour/models/rgb/transfer_functions/sony.py:400: note: Left operand is of type "Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | str | _NestedSequence[complex | bytes | str]"
+ colour/models/rgb/transfer_functions/sony.py:400: error: Unsupported operand types for + ("str" and "float")  [operator]
+ colour/models/rgb/transfer_functions/sony.py:401: error: Unsupported operand types for * ("Buffer" and "float")  [operator]
+ colour/models/rgb/transfer_functions/sony.py:401: error: Unsupported operand types for * ("_SupportsArray[dtype[Any]]" and "float")  [operator]
+ colour/models/rgb/transfer_functions/sony.py:401: error: Unsupported operand types for * ("_NestedSequence[_SupportsArray[dtype[Any]]]" and "float")  [operator]
+ colour/models/rgb/transfer_functions/sony.py:401: error: Unsupported operand types for * ("_NestedSequence[complex | bytes | str]" and "float")  [operator]
+ colour/models/rgb/transfer_functions/sony.py:401: note: Left operand is of type "Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | str | _NestedSequence[complex | bytes | str]"
+ colour/models/rgb/transfer_functions/sony.py:401: error: Unsupported operand types for * ("str" and "float")  [operator]
+ colour/models/rgb/transfer_functions/red.py:525: error: Unsupported operand types for > ("float" and "Buffer")  [operator]
+ colour/models/rgb/transfer_functions/red.py:525: error: Unsupported operand types for > ("float" and "_SupportsArray[dtype[Any]]")  [operator]
+ colour/models/rgb/transfer_functions/red.py:525: error: Unsupported operand types for > ("float" and "_NestedSequence[_SupportsArray[dtype[Any]]]")  [operator]
+ colour/models/rgb/transfer_functions/red.py:525: error: Unsupported operand types for > ("float" and "complex")  [operator]
+ colour/models/rgb/transfer_functions/red.py:525: error: Unsupported operand types for > ("float" and "_NestedSequence[complex | bytes | str]")  [operator]
+ colour/models/rgb/transfer_functions/red.py:525: note: Left operand is of type "Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | bytes | str | _NestedSequence[complex | bytes | str]"
+ colour/models/rgb/transfer_functions/red.py:525: error: Unsupported operand types for < ("bytes" and "float")  [operator]
+ colour/models/rgb/transfer_functions/red.py:525: error: Unsupported operand types for < ("str" and "float")  [operator]
+ colour/models/rgb/transfer_functions/red.py:525: error: Unsupported operand types for * ("Buffer" and "float")  [operator]
+ colour/models/rgb/transfer_functions/red.py:525: error: Unsupported operand types for * ("_SupportsArray[dtype[Any]]" and "float")  [operator]
+ colour/models/rgb/transfer_functions/red.py:525: error: Unsupported operand types for * ("_NestedSequence[_SupportsArray[dtype[Any]]]" and "float")  [operator]
+ colour/models/rgb/transfer_functions/red.py:525: error: Unsupported operand types for * ("_NestedSequence[complex | bytes | str]" and "float")  [operator]
+ colour/models/rgb/transfer_functions/red.py:525: error: Unsupported operand types for * ("bytes" and "float")  [operator]
+ colour/models/rgb/transfer_functions/red.py:525: error: Unsupported operand types for * ("str" and "float")  [operator]
+ colour/models/rgb/transfer_functions/panasonic_v_log.py:128: error: Unsupported operand types for * ("float" and "Buffer")  [operator]
+ colour/models/rgb/transfer_functions/panasonic_v_log.py:128: error: Unsupported operand types for * ("float" and "_SupportsArray[dtype[Any]]")  [operator]
+ colour/models/rgb/transfer_functions/panasonic_v_log.py:128: error: Unsupported operand types for * ("float" and "_NestedSequence[_SupportsArray[dtype[Any]]]")  [operator]
+ colour/models/rgb/transfer_functions/panasonic_v_log.py:128: error: Unsupported operand types for * ("float" and "str")  [operator]
+ colour/models/rgb/transfer_functions/panasonic_v_log.py:128: error: Unsupported operand types for * ("float" and "_NestedSequence[complex | bytes | str]")  [operator]
+ colour/models/rgb/transfer_functions/panasonic_v_log.py:128: note: Right operand is of type "Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | str | _NestedSequence[complex | bytes | str]"
+ colour/models/rgb/transfer_functions/canon.py:166: error: No overload variant of "__gt__" of "ndarray" matches argument type "Buffer"  [operator]
+ colour/models/rgb/transfer_functions/canon.py:166: note: Possible overload variants:
+ colour/models/rgb/transfer_functions/canon.py:166: note:     def __gt__(self, _SupportsArray[dtype[numpy.bool[builtins.bool] | number[Any, int | float | complex]]] | _NestedSequence[_SupportsArray[dtype[numpy.bool[builtins.bool] | number[Any, int | float | complex]]]] | complex | _NestedSequence[complex], /) -> ndarray[tuple[Any, ...], dtype[numpy.bool[builtins.bool]]]
+ colour/models/rgb/transfer_functions/canon.py:166: note:     def __gt__(self, _SupportsArray[dtype[object_]] | _NestedSequence[_SupportsArray[dtype[object_]]], /) -> ndarray[tuple[Any, ...], dtype[numpy.bool[builtins.bool]]]
+ colour/models/rgb/transfer_functions/canon.py:166: error: Unsupported operand types for > ("ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]" and "_NestedSequence[complex | bytes | str]")  [operator]
+ colour/models/rgb/transfer_functions/canon.py:166: note: Left operand is of type "Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | str | _NestedSequence[complex | bytes | str]"
+ colour/models/rgb/transfer_functions/canon.py:166: error: Unsupported operand types for < ("str" and "ndarray[tuple[Any, ...], dtype[floating[_16Bit] | floating[_32Bit] | float64]]")  [operator]
+ colour/models/rgb/transfer_functions/canon.py:167: error: Unsupported operand type for unary - ("Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | str | _NestedSequence[complex | bytes | str]")  [operator]
+ colour/models/rgb/transfer_functions/canon.py:168: error: Unsupported operand types for * ("float" and "Buffer")  [operator]
+ colour/models/rgb/transfer_functions/canon.py:168: error: Unsupported operand types for * ("float" and "_SupportsArray[dtype[Any]]")  [operator]
+ colour/models/rgb/transfer_functions/canon.py:168: error: Unsupported operand types for * ("float" and "_NestedSequence[_SupportsArray[dtype[Any]]]")  [operator]
+ colour/models/rgb/transfer_functions/canon.py:168: error: Unsupported operand types for * ("float" and "str")  [operator]
+ colour/models/rgb/transfer_functions/canon.py:168: error: Unsupported operand types for * ("float" and "_NestedSequence[complex | bytes | str]")  [operator]

... (truncated 113 lines) ...

steam.py (https://github.com/Gobot1234/steam.py)
- steam/ext/commands/help.py:35: error: Redundant cast to "CommandKwargs[Any]"  [redundant-cast]

pandas (https://github.com/pandas-dev/pandas)
+ pandas/core/util/hashing.py:350: error: Unused "type: ignore" comment  [unused-ignore]
+ pandas/io/formats/format.py:1607: error: Item "Sequence[float]" of "ndarray[tuple[Any, ...], dtype[Any]] | Sequence[float]" has no attribute "round"  [union-attr]
+ pandas/io/formats/format.py:1618: error: No overload variant of "__getitem__" of "Sequence" matches argument type "ndarray[tuple[Any, ...], dtype[numpy.bool[builtins.bool]]]"  [call-overload]
+ pandas/io/formats/format.py:1618: note: Possible overload variants:
+ pandas/io/formats/format.py:1618: note:     def __getitem__(self, int, /) -> float
+ pandas/io/formats/format.py:1618: note:     def __getitem__(self, slice[Any, Any, Any], /) -> Sequence[float]
+ pandas/io/formats/format.py:1620: error: No overload variant of "__getitem__" of "Sequence" matches argument type "ndarray[tuple[Any, ...], dtype[numpy.bool[builtins.bool]]]"  [call-overload]
+ pandas/io/formats/format.py:1620: note: Possible overload variants:
+ pandas/io/formats/format.py:1620: note:     def __getitem__(self, int, /) -> float
+ pandas/io/formats/format.py:1620: note:     def __getitem__(self, slice[Any, Any, Any], /) -> Sequence[float]

pandas-stubs (https://github.com/pandas-dev/pandas-stubs)
+ tests/test_timefuncs.py:1660: error: Expression is of type "Series[Any]", not "Series[Timestamp]"  [assert-type]
+ tests/test_frame.py:1089: error: Expression is of type "Any", not "ndarray[tuple[Any, ...], dtype[Any]]"  [assert-type]
+ tests/series/test_agg.py:14: error: Expression is of type "Any", not "float"  [assert-type]
+ tests/series/test_agg.py:15: error: Expression is of type "Any", not "float"  [assert-type]
+ tests/series/test_agg.py:16: error: Expression is of type "Any", not "float"  [assert-type]
+ tests/series/arithmetic/test_truediv.py:99: error: Expression is of type "Any", not "Series[Any]"  [assert-type]
+ tests/series/arithmetic/test_truediv.py:102: error: Expression is of type "Any", not "Series[Any]"  [assert-type]
+ tests/series/arithmetic/test_sub.py:235: error: Expression is of type "Any", not "Series[Timedelta]"  [assert-type]
+ tests/series/arithmetic/test_mul.py:78: error: Expression is of type "Any", not "Series[Any]"  [assert-type]
+ tests/series/arithmetic/test_mul.py:79: error: Expression is of type "Any", not "Series[Any]"  [assert-type]
+ tests/series/arithmetic/test_mul.py:80: error: Expression is of type "Any", not "Series[Any]"  [assert-type]
+ tests/series/arithmetic/test_mul.py:81: error: Expression is of type "Any", not "Series[Any]"  [assert-type]
+ tests/series/arithmetic/test_add.py:83: error: Expression is of type "Any", not "Series[Any]"  [assert-type]
+ tests/series/arithmetic/test_add.py:84: error: Expression is of type "Any", not "Series[Any]"  [assert-type]
+ tests/series/arithmetic/test_add.py:85: error: Expression is of type "Any", not "Series[Any]"  [assert-type]
+ tests/series/arithmetic/test_add.py:86: error: Expression is of type "Any", not "Series[Any]"  [assert-type]
+ tests/scalars/test_scalars.py:1814: error: Expression is of type "Any", not "PeriodIndex"  [assert-type]
+ tests/indexes/arithmetic/test_truediv.py:59: error: Expression is of type "Any", not "Index[Any]"  [assert-type]
+ tests/indexes/arithmetic/test_mul.py:58: error: Expression is of type "Any", not "Index[Any]"  [assert-type]
+ tests/indexes/arithmetic/test_mul.py:60: error: Expression is of type "Any", not "Index[Any]"  [assert-type]
+ tests/indexes/arithmetic/test_mul.py:61: error: Expression is of type "Any", not "Index[Any]"  [assert-type]
+ tests/indexes/arithmetic/test_add.py:57: error: Expression is of type "Any", not "Index[Any]"  [assert-type]
+ tests/indexes/arithmetic/test_add.py:58: error: Expression is of type "Any", not "Index[Any]"  [assert-type]
+ tests/indexes/arithmetic/test_add.py:59: error: Expression is of type "Any", not "Index[Any]"  [assert-type]
+ tests/indexes/arithmetic/test_add.py:60: error: Expression is of type "Any", not "Index[Any]"  [assert-type]
+ tests/indexes/arithmetic/test_add.py:111: error: Expression is of type "Any", not "Never"  [assert-type]
+ tests/series/test_series.py:1992: error: Expression is of type "ndarray[Any, Any]", not "ndarray[tuple[int], dtype[Any]]"  [assert-type]
+ tests/series/test_series.py:3516: error: Expression is of type "Any", not "Series[float]"  [assert-type]

pandera (https://github.com/pandera-dev/pandera)
- tests/pandas/test_dtypes.py:343: error: Need type annotation for "series"  [var-annotated]
+ tests/pandas/test_dtypes.py:345: error: Unused "type: ignore" comment  [unused-ignore]

static-frame (https://github.com/static-frame/static-frame)
+ static_frame/core/rank.py:106: error: Unused "type: ignore" comment  [unused-ignore]

xarray (https://github.com/pydata/xarray)
+ xarray/tests/test_typed_ops.py:28: error: Unused "type: ignore" comment  [unused-ignore]
+ xarray/tests/test_typed_ops.py:79: error: Unused "type: ignore" comment  [unused-ignore]

freqtrade (https://github.com/freqtrade/freqtrade)
- freqtrade/optimize/backtesting.py:1533: error: Incompatible return value type (got "list[list[Any]]", expected "list[tuple[Any, ...]] | None")  [return-value]
- freqtrade/plugins/pairlist/VolatilityFilter.py:156: error: "ndarray[tuple[Any, ...], dtype[Any]]" has no attribute "fillna"  [attr-defined]
- freqtrade/plugins/pairlist/VolatilityFilter.py:158: error: "ndarray[tuple[Any, ...], dtype[Any]]" has no attribute "rolling"  [attr-defined]

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@sterliakov