note mypy vs pyright discrepancy

Author: MarcoGorelli

pandas-stubs/_typing.pyi

@@ -950,7 +950,7 @@ np_1darray_dt: TypeAlias = np_1darray[np.datetime64]
 np_1darray_td: TypeAlias = np_1darray[np.timedelta64]
 np_2darray: TypeAlias = np.ndarray[tuple[int, int], np.dtype[GenericT]]
 
-NDArrayT = TypeVar("NDArrayT", bound=np.ndarray)
+NDArrayT = TypeVar("NDArrayT", bound=np_ndarray)
 
 DtypeNp = TypeVar("DtypeNp", bound=np.dtype[np.generic])
 KeysArgType: TypeAlias = Any

tests/indexes/test_indexes.py

@@ -37,6 +37,7 @@
     np_1darray_bool,
     np_1darray_int64,
     np_1darray_intp,
+    np_ndarray,
     np_ndarray_dt,
 )
 
@@ -1674,7 +1675,10 @@ def test_index_view() -> None:
     ind = pd.Index([1, 2])
     check(assert_type(ind.view("int64"), ArrayLike), np_1darray_int64)
     check(assert_type(ind.view(), "pd.Index[int]"), pd.Index)
-    check(assert_type(ind.view(np.ndarray), np.ndarray), np.ndarray)
+    # mypy and pyright differ here in what they report:
+    # - mypy: ndarray[Any, Any]"
+    # - pyright: ndarray[tuple[Any, ...], dtype[Any]]
+    check(assert_type(ind.view(np.ndarray), np_ndarray), np.ndarray)  # type: ignore[assert-type]
 
     class MyArray(np.ndarray): ...