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import numpy as np
from .utils import is_duck_array
integer_types = (int, np.integer)
try:
import dask.array
from dask.base import is_dask_collection
# solely for isinstance checks
dask_array_type = (dask.array.Array,)
def is_duck_dask_array(x):
return is_duck_array(x) and is_dask_collection(x)
except ImportError: # pragma: no cover
dask_array_type = ()
is_duck_dask_array = lambda _: False
is_dask_collection = lambda _: False
try:
# solely for isinstance checks
import sparse
sparse_array_type = (sparse.COO,)
except ImportError: # pragma: no cover
try:
import scipy.sparse
sparse_array_type = (scipy.sparse.coo_matrix,)
except ImportError: # pragma: no cover
sparse_array_type = ()
try:
# solely for isinstance checks
import cupy
cupy_array_type = (cupy.ndarray,)
except ImportError: # pragma: no cover
cupy_array_type = ()
|
