CI: fix npdev build

pandas/_libs/index.pyx

@@ -116,12 +116,14 @@ cdef class IndexEngine:
 
         if self.is_monotonic_increasing:
             values = self._get_index_values()
-            try:
-                left = values.searchsorted(val, side='left')
-                right = values.searchsorted(val, side='right')
-            except TypeError:
-                # e.g. GH#29189 get_loc(None) with a Float64Index
-                raise KeyError(val)
+            with warnings.catch_warnings():
+                warnings.simplefilter("ignore", category=FutureWarning)
+                try:
+                    left = values.searchsorted(val, side='left')
+                    right = values.searchsorted(val, side='right')
+                except TypeError:
+                    # e.g. GH#29189 get_loc(None) with a Float64Index
+                    raise KeyError(val)
 
             diff = right - left
             if diff == 0:

pandas/core/algorithms.py

@@ -13,6 +13,7 @@
 )
 from warnings import (
     catch_warnings,
+    filterwarnings,
     simplefilter,
     warn,
 )
@@ -1583,7 +1584,9 @@ def searchsorted(arr, value, side="left", sorter=None) -> np.ndarray:
         # and `value` is a pd.Timestamp, we may need to convert value
         arr = ensure_wrapped_if_datetimelike(arr)
 
-    return arr.searchsorted(value, side=side, sorter=sorter)
+    with catch_warnings():
+        filterwarnings("ignore", category=FutureWarning)
+        return arr.searchsorted(value, side=side, sorter=sorter)
 
 
 # ---- #

pandas/core/arrays/datetimes.py

@@ -1,5 +1,6 @@
 from __future__ import annotations
 
+from collections import abc
 from datetime import (
     datetime,
     time,
@@ -71,7 +72,10 @@
 from pandas.core.arrays._ranges import generate_regular_range
 from pandas.core.arrays.integer import IntegerArray
 import pandas.core.common as com
-from pandas.core.construction import extract_array
+from pandas.core.construction import (
+    create_ndarray,
+    extract_array,
+)
 
 from pandas.tseries.frequencies import get_period_alias
 from pandas.tseries.offsets import (
@@ -2012,10 +2016,10 @@ def sequence_to_dt64ns(
 
     if not hasattr(data, "dtype"):
         # e.g. list, tuple
-        if np.ndim(data) == 0:
+        if lib.is_iterator(data) or isinstance(data, (abc.KeysView, abc.ValuesView)):
             # i.e. generator
             data = list(data)
-        data = np.asarray(data)
+        data = create_ndarray(data, copy=False)
         copy = False
     elif isinstance(data, ABCMultiIndex):
         raise TypeError("Cannot create a DatetimeArray from a MultiIndex.")
@@ -2026,7 +2030,7 @@ def sequence_to_dt64ns(
         data = data.to_numpy("int64", na_value=iNaT)
     elif not isinstance(data, (np.ndarray, ExtensionArray)):
         # GH#24539 e.g. xarray, dask object
-        data = np.asarray(data)
+        data = create_ndarray(data)
 
     if isinstance(data, DatetimeArray):
         inferred_freq = data.freq

pandas/core/arrays/numpy_.py

@@ -23,7 +23,10 @@
 )
 from pandas.core.arraylike import OpsMixin
 from pandas.core.arrays._mixins import NDArrayBackedExtensionArray
-from pandas.core.construction import ensure_wrapped_if_datetimelike
+from pandas.core.construction import (
+    create_ndarray,
+    ensure_wrapped_if_datetimelike,
+)
 from pandas.core.strings.object_array import ObjectStringArrayMixin
 
 
@@ -94,12 +97,11 @@ def _from_sequence(
         if isinstance(dtype, PandasDtype):
             dtype = dtype._dtype
 
-        # error: Argument "dtype" to "asarray" has incompatible type
-        # "Union[ExtensionDtype, str, dtype[Any], dtype[floating[_64Bit]], Type[object],
-        # None]"; expected "Union[dtype[Any], None, type, _SupportsDType, str,
-        # Union[Tuple[Any, int], Tuple[Any, Union[int, Sequence[int]]], List[Any],
-        # _DTypeDict, Tuple[Any, Any]]]"
-        result = np.asarray(scalars, dtype=dtype)  # type: ignore[arg-type]
+        result = create_ndarray(
+            scalars,
+            dtype=dtype,  # type: ignore[arg-type]
+            copy=False,
+        )
         if (
             result.ndim > 1
             and not hasattr(scalars, "dtype")

pandas/core/arrays/timedeltas.py

@@ -1,5 +1,6 @@
 from __future__ import annotations
 
+from collections import abc
 from datetime import timedelta
 from typing import TYPE_CHECKING
 
@@ -66,7 +67,10 @@
 )
 from pandas.core.arrays._ranges import generate_regular_range
 import pandas.core.common as com
-from pandas.core.construction import extract_array
+from pandas.core.construction import (
+    create_ndarray,
+    extract_array,
+)
 from pandas.core.ops.common import unpack_zerodim_and_defer
 
 if TYPE_CHECKING:
@@ -965,10 +969,10 @@ def sequence_to_td64ns(
     # Unwrap whatever we have into a np.ndarray
     if not hasattr(data, "dtype"):
         # e.g. list, tuple
-        if np.ndim(data) == 0:
+        if lib.is_iterator(data) or isinstance(data, (abc.KeysView, abc.ValuesView)):
             # i.e. generator
             data = list(data)
-        data = np.array(data, copy=False)
+        data = create_ndarray(data, copy=False)
     elif isinstance(data, ABCMultiIndex):
         raise TypeError("Cannot create a DatetimeArray from a MultiIndex.")
     else:
@@ -978,7 +982,7 @@ def sequence_to_td64ns(
         data = data.to_numpy("int64", na_value=iNaT)
     elif not isinstance(data, (np.ndarray, ExtensionArray)):
         # GH#24539 e.g. xarray, dask object
-        data = np.asarray(data)
+        data = create_ndarray(data, copy=False)
     elif isinstance(data, ABCCategorical):
         data = data.categories.take(data.codes, fill_value=NaT)._values
         copy = False

pandas/core/common.py

@@ -129,7 +129,7 @@ def is_bool_indexer(key: Any) -> bool:
         is_array_like(key) and is_extension_array_dtype(key.dtype)
     ):
         if key.dtype == np.object_:
-            key = np.asarray(key)
+            key = np.asarray(key, dtype=object)
 
             if not lib.is_bool_array(key):
                 na_msg = "Cannot mask with non-boolean array containing NA / NaN values"
@@ -142,8 +142,10 @@ def is_bool_indexer(key: Any) -> bool:
         elif is_bool_dtype(key.dtype):
             return True
     elif isinstance(key, list):
+        from pandas.core.construction import create_ndarray
+
         try:
-            arr = np.asarray(key)
+            arr = create_ndarray(key, copy=False)
             return arr.dtype == np.bool_ and len(arr) == len(key)
         except TypeError:  # pragma: no cover
             return False
@@ -221,6 +223,8 @@ def count_not_none(*args) -> int:
 
 
 def asarray_tuplesafe(values, dtype: NpDtype | None = None) -> np.ndarray:
+    if dtype is not None:
+        dtype = np.dtype(dtype)
 
     if not (isinstance(values, (list, tuple)) or hasattr(values, "__array__")):
         values = list(values)
@@ -229,15 +233,12 @@ def asarray_tuplesafe(values, dtype: NpDtype | None = None) -> np.ndarray:
         # expected "ndarray")
         return values._values  # type: ignore[return-value]
 
-    # error: Non-overlapping container check (element type: "Union[str, dtype[Any],
-    # None]", container item type: "type")
-    if isinstance(values, list) and dtype in [  # type: ignore[comparison-overlap]
-        np.object_,
-        object,
-    ]:
+    if isinstance(values, list) and dtype == np.dtype("object"):
         return construct_1d_object_array_from_listlike(values)
 
-    result = np.asarray(values, dtype=dtype)
+    from pandas.core.construction import create_ndarray
+
+    result = create_ndarray(values, dtype=dtype, copy=False)
 
     if issubclass(result.dtype.type, str):
         result = np.asarray(values, dtype=object)

pandas/core/construction.py

@@ -12,6 +12,7 @@
     Sequence,
     cast,
 )
+import warnings
 
 import numpy as np
 import numpy.ma as ma
@@ -815,3 +816,20 @@ def create_series_with_explicit_dtype(
     return Series(
         data=data, index=index, dtype=dtype, name=name, copy=copy, fastpath=fastpath
     )
+
+
+def create_ndarray(
+    obj, *, dtype: np.dtype | None = None, copy: bool = True
+) -> np.ndarray:
+    """
+    Call np.ndarray if we do not know the outcome dtype.
+    """
+    if dtype is not None:
+        return np.array(obj, dtype=dtype, copy=copy)
+    try:
+        with warnings.catch_warnings():
+            warnings.filterwarnings("ignore", category=FutureWarning)
+            out = np.array(obj, copy=copy)
+    except (TypeError, ValueError):
+        out = np.array(obj, dtype=object, copy=copy)
+    return out

pandas/core/dtypes/cast.py

@@ -882,7 +882,9 @@ def maybe_infer_dtype_type(element):
     if hasattr(element, "dtype"):
         tipo = element.dtype
     elif is_list_like(element):
-        element = np.asarray(element)
+        from pandas.core.construction import create_ndarray
+
+        element = create_ndarray(element, copy=False)
         tipo = element.dtype
     return tipo
 
@@ -1608,8 +1610,9 @@ def maybe_cast_to_datetime(
 
         if is_datetime64 or is_datetime64tz:
             dtype = ensure_nanosecond_dtype(dtype)
+            from pandas.core.construction import create_ndarray
 
-            value = np.array(value, copy=False)
+            value = create_ndarray(value, copy=False)
 
             # we have an array of datetime or timedeltas & nulls
             if value.size or not is_dtype_equal(value.dtype, dtype):
@@ -2009,11 +2012,17 @@ def construct_1d_ndarray_preserving_na(
                 values, dtype, copy=copy  # type: ignore[arg-type]
             )
         else:
+            from pandas.core.construction import create_ndarray
+
             # error: Argument "dtype" to "array" has incompatible type
             # "Union[dtype[Any], ExtensionDtype, None]"; expected "Union[dtype[Any],
             # None, type, _SupportsDType, str, Union[Tuple[Any, int], Tuple[Any,
             # Union[int, Sequence[int]]], List[Any], _DTypeDict, Tuple[Any, Any]]]"
-            subarr = np.array(values, dtype=dtype, copy=copy)  # type: ignore[arg-type]
+            subarr = create_ndarray(
+                values,
+                dtype=dtype,  # type: ignore[arg-type]
+                copy=copy,
+            )
 
     return subarr
 

pandas/core/indexes/numeric.py

@@ -38,6 +38,7 @@
 from pandas.core.dtypes.generic import ABCSeries
 
 import pandas.core.common as com
+from pandas.core.construction import create_ndarray
 from pandas.core.indexes.base import (
     Index,
     maybe_extract_name,
@@ -152,15 +153,15 @@ def _ensure_array(cls, data, dtype, copy: bool):
             if not isinstance(data, (ABCSeries, list, tuple)):
                 data = list(data)
 
-            data = np.asarray(data, dtype=dtype)
+            data = create_ndarray(data, dtype=dtype, copy=False)
 
         if issubclass(data.dtype.type, str):
             cls._string_data_error(data)
 
         dtype = cls._ensure_dtype(dtype)
 
         if copy or not is_dtype_equal(data.dtype, dtype):
-            subarr = np.array(data, dtype=dtype, copy=copy)
+            subarr = create_ndarray(data, dtype=dtype, copy=copy)
             cls._assert_safe_casting(data, subarr)
         else:
             subarr = data
@@ -169,7 +170,7 @@ def _ensure_array(cls, data, dtype, copy: bool):
             # GH#13601, GH#20285, GH#27125
             raise ValueError("Index data must be 1-dimensional")
 
-        subarr = np.asarray(subarr)
+        subarr = create_ndarray(subarr, copy=False)
         return subarr
 
     @classmethod

pandas/core/indexing.py

@@ -42,7 +42,10 @@
 )
 
 import pandas.core.common as com
-from pandas.core.construction import array as pd_array
+from pandas.core.construction import (
+    array as pd_array,
+    create_ndarray,
+)
 from pandas.core.indexers import (
     check_array_indexer,
     is_empty_indexer,
@@ -1712,7 +1715,10 @@ def _setitem_with_indexer_split_path(self, indexer, value, name: str):
             if isinstance(value, ABCDataFrame):
                 self._setitem_with_indexer_frame_value(indexer, value, name)
 
-            elif np.ndim(value) == 2:
+            elif (hasattr(value, "ndim") and value.ndim == 2) or (
+                not hasattr(value, "ndim")
+                and create_ndarray(value, copy=False).ndim == 2
+            ):
                 self._setitem_with_indexer_2d_value(indexer, value)
 
             elif len(ilocs) == 1 and lplane_indexer == len(value) and not is_scalar(pi):
@@ -1763,7 +1769,7 @@ def _setitem_with_indexer_split_path(self, indexer, value, name: str):
             for loc in ilocs:
                 self._setitem_single_column(loc, value, pi)
 
-    def _setitem_with_indexer_2d_value(self, indexer, value):
+    def _setitem_with_indexer_2d_value(self, indexer, value: np.ndarray) -> None:
         # We get here with np.ndim(value) == 2, excluding DataFrame,
         #  which goes through _setitem_with_indexer_frame_value
         pi = indexer[0]

pandas/core/internals/array_manager.py

@@ -421,7 +421,7 @@ def _convert(arr):
         return self.apply(_convert)
 
     def replace(self: T, value, **kwargs) -> T:
-        assert np.ndim(value) == 0, value
+        assert not lib.is_list_like(value)
         # TODO "replace" is right now implemented on the blocks, we should move
         # it to general array algos so it can be reused here
         return self.apply_with_block("replace", value=value, **kwargs)

pandas/core/internals/blocks.py

@@ -102,6 +102,7 @@
 import pandas.core.common as com
 import pandas.core.computation.expressions as expressions
 from pandas.core.construction import (
+    create_ndarray,
     ensure_wrapped_if_datetimelike,
     extract_array,
 )
@@ -933,7 +934,7 @@ def setitem(self, indexer, value):
             arr_value = value
         else:
             is_ea_value = False
-            arr_value = np.asarray(value)
+            arr_value = create_ndarray(value, copy=False)
 
         if transpose:
             values = values.T

pandas/core/internals/managers.py

@@ -410,7 +410,7 @@ def convert(
         )
 
     def replace(self: T, to_replace, value, inplace: bool, regex: bool) -> T:
-        assert np.ndim(value) == 0, value
+        assert not is_list_like(value)
         return self.apply(
             "replace", to_replace=to_replace, value=value, inplace=inplace, regex=regex
         )