TYP: Backport typing fixes#29222
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charris merged 2 commits intonumpy:maintenance/2.3.xfrom Jun 17, 2025
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Diff from mypy_primer, showing the effect of this PR on type check results on a corpus of open source code: rclip (https://github.com/yurijmikhalevich/rclip)
- rclip/model.py:218: error: Argument "key" to "sorted" has incompatible type "Callable[[tuple[float64, int]], float64]"; expected "Callable[[tuple[float64, int]], SupportsDunderLT[Any] | SupportsDunderGT[Any]]" [arg-type]
- rclip/model.py:218: error: Incompatible return value type (got "float64", expected "SupportsDunderLT[Any] | SupportsDunderGT[Any]") [return-value]
- rclip/model.py:220: error: Incompatible return value type (got "list[tuple[float64, int]]", expected "list[tuple[float, int]]") [return-value]
- rclip/model.py:220: note: "List" is invariant -- see https://mypy.readthedocs.io/en/stable/common_issues.html#variance
- rclip/model.py:220: note: Consider using "Sequence" instead, which is covariant
- rclip/model.py:220: note: Perhaps you need a type annotation for "sorted_similarities"? Suggestion: "list[tuple[float, int]]"
xarray (https://github.com/pydata/xarray)
+ xarray/tests/test_namedarray.py:212: error: Argument 2 to "NamedArray" has incompatible type "ndarray[tuple[Any, ...], dtype[signedinteger[_64Bit]]]"; expected "_arrayfunction[Any, Never] | _arrayapi[Any, Never]" [arg-type]
+ xarray/tests/test_namedarray.py: note: In member "test_duck_array_class" of class "TestNamedArray":
+ xarray/tests/test_namedarray.py:373: error: Argument 1 to "check_duck_array_typevar" has incompatible type "ndarray[tuple[Any, ...], dtype[signedinteger[_64Bit]]]"; expected "_arrayfunction[Any, Never] | _arrayapi[Any, Never]" [arg-type]
+ xarray/tests/test_namedarray.py:377: error: Argument 1 to "check_duck_array_typevar" has incompatible type "MaskedArray[Any, dtype[signedinteger[_64Bit]]]"; expected "_arrayfunction[Any, Never] | _arrayapi[Any, Never]" [arg-type]
+ xarray/tests/test_namedarray.py: note: In class "TestNamedArray":
+ xarray/tests/test_namedarray.py: note: In member "test_warn_on_repeated_dimension_names" of class "TestNamedArray":
+ xarray/tests/test_namedarray.py:592: error: Argument 2 to "NamedArray" has incompatible type "ndarray[tuple[int, int], dtype[signedinteger[Any]]]"; expected "_arrayfunction[Any, Never] | _arrayapi[Any, Never]" [arg-type]
jax (https://github.com/google/jax)
+ jax/_src/pallas/hlo_interpreter.py:93: error: Unused "type: ignore" comment [unused-ignore]
static-frame (https://github.com/static-frame/static-frame)
- static_frame/core/loc_map.py:428: error: Incompatible types in assignment (expression has type "unsignedinteger[_64Bit]", variable has type "ndarray[tuple[Any, ...], dtype[unsignedinteger[_64Bit]]]") [assignment]
+ static_frame/core/container_util.py:1339: error: Unused "type: ignore" comment [unused-ignore]
dedupe (https://github.com/dedupeio/dedupe)
- dedupe/clustering.py:59: error: Incompatible types in assignment (expression has type "signedinteger[_64Bit]", variable has type "int") [assignment]
- dedupe/labeler.py:199: error: Generator has incompatible item type "tuple[int | str, int | str]"; expected "tuple[int, int] | tuple[str, str]" [misc]
- dedupe/convenience.py:99: error: "signedinteger[_64Bit]" object is not iterable [misc]
- dedupe/convenience.py:99: error: Cannot determine type of "p" [has-type]
- dedupe/convenience.py:99: error: Cannot determine type of "q" [has-type]
hydpy (https://github.com/hydpy-dev/hydpy)
- hydpy/core/objecttools.py:955: error: Argument 1 to "repr_values" has incompatible type "Sequence[object] | ndarray[tuple[Any, ...], dtype[generic[Any]]] | generic[Any]"; expected "Sequence[object] | ndarray[tuple[Any, ...], dtype[generic[Any]]]" [arg-type]
- hydpy/core/netcdftools.py:489: error: Argument 1 to "join" of "bytes" has incompatible type "bytes_"; expected "Iterable[Buffer]" [arg-type]
- hydpy/core/netcdftools.py:489: note: Following member(s) of "bytes_" have conflicts:
- hydpy/core/netcdftools.py:489: note: Expected:
- hydpy/core/netcdftools.py:489: note: def __iter__(self) -> Iterator[Buffer]
- hydpy/core/netcdftools.py:489: note: Got:
- hydpy/core/netcdftools.py:489: note: def __iter__(self) -> Iterator[int]
- hydpy/core/netcdftools.py:489: note: Expected:
- hydpy/core/netcdftools.py:489: note: def __iter__(self) -> Iterator[Buffer]
- hydpy/core/netcdftools.py:489: note: Got:
- hydpy/core/netcdftools.py:489: note: def __iter__(self) -> Iterator[int]
- hydpy/core/netcdftools.py:489: note: Expected:
- hydpy/core/netcdftools.py:489: note: def __iter__(self) -> Iterator[Buffer]
- hydpy/core/netcdftools.py:489: note: Got:
- hydpy/core/netcdftools.py:489: note: def __iter__(self) -> Iterator[int]
- hydpy/core/itemtools.py:951: error: Argument 2 to "update_variable" of "ChangeItem" has incompatible type "float64"; expected "ndarray[tuple[Any, ...], dtype[float64]]" [arg-type]
- hydpy/core/itemtools.py:954: error: Argument 2 to "update_variable" of "ChangeItem" has incompatible type "float64"; expected "ndarray[tuple[Any, ...], dtype[float64]]" [arg-type]
- hydpy/auxs/ppolytools.py:253: error: Value of type variable "_AnyShapeT" of "__call__" of "_ConstructorEmpty" cannot be "tuple[int, signedinteger[_64Bit]]" [type-var]
- hydpy/auxs/ppolytools.py:253: error: Value of type variable "SupportsRichComparisonT" of "max" cannot be "signedinteger[_64Bit]" [type-var]
- hydpy/auxs/ppolytools.py:661: error: Value of type "float64" is not indexable [index]
spark (https://github.com/apache/spark)
- python/pyspark/sql/streaming/benchmark/utils.py:26: error: Incompatible types in string interpolation (expression has type "floating[Any]", placeholder has type "int | float") [str-format]
scipy (https://github.com/scipy/scipy)
- scipy/spatial/tests/test_spherical_voronoi.py:194: error: Value of type variable "SupportsRichComparisonT" of "sorted" cannot be "floating[Any]" [type-var]
pandas (https://github.com/pandas-dev/pandas)
+ pandas/core/array_algos/quantile.py:199: error: Unused "type: ignore" comment [unused-ignore]
+ pandas/core/sorting.py:479: error: Unused "type: ignore" comment [unused-ignore]
- pandas/tseries/frequencies.py:274: error: List comprehension has incompatible type List[floating[_64Bit]]; expected List[int] [misc]
- pandas/tseries/frequencies.py:279: error: List comprehension has incompatible type List[floating[_64Bit]]; expected List[int] [misc]
- pandas/core/arrays/datetimelike.py:1293: error: No overload variant of "__mul__" of "BaseOffset" matches argument type "signedinteger[_64Bit]" [operator]
- pandas/core/arrays/datetimelike.py:1293: note: Possible overload variants:
- pandas/core/arrays/datetimelike.py:1293: note: def __mul__(self, ndarray[tuple[Any, ...], dtype[Any]], /) -> ndarray[tuple[Any, ...], dtype[Any]]
- pandas/core/arrays/datetimelike.py:1293: note: def __mul__(self, int, /) -> BaseOffset
- pandas/io/stata.py:1448: error: Invalid index type "unsignedinteger[_8Bit]" for "dict[int, int]"; expected type "int" [index]
- pandas/io/stata.py:1450: error: Argument 1 to "append" of "list" has incompatible type "unsignedinteger[_8Bit]"; expected "int" [arg-type]
+ pandas/io/parsers/python_parser.py:1471: error: Unused "type: ignore" comment [unused-ignore]
- pandas/core/internals/managers.py:1527: error: "BlockPlacement" has no attribute "increment_above" [attr-defined]
+ pandas/core/internals/construction.py:637: error: Unused "type: ignore" comment [unused-ignore]
+ pandas/core/internals/blocks.py:2101: error: Unused "type: ignore" comment [unused-ignore]
- pandas/io/formats/style_render.py:1243: error: Invalid index type "tuple[signedinteger[_32Bit | _64Bit], signedinteger[_32Bit | _64Bit]]" for "defaultdict[tuple[int, int], Callable[[Any], str]]"; expected type "tuple[int, int]" [index]
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Backports:
#29218
TYP: Workaround for a mypy issue in ndarray.iter
Closes TYP: incorrect type inference for iteration elements? (numpy 2.3.0) #29214
The workaround I had in mind was also bugged, so I suppose that'd make it a workaroundaround.
And just like that term, this workaroundaround itself also looks pretty absurd.
#29204
closes TYP: typehints for __array__ #29203