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is_dask_collection: micro optimization #6107

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Merged
merged 1 commit into from
Dec 29, 2021
Merged

is_dask_collection: micro optimization #6107

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24 changes: 12 additions & 12 deletions xarray/core/pycompat.py
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Original file line number Diff line number Diff line change
Expand Up @@ -43,8 +43,19 @@ def __init__(self, mod):
self.available = duck_array_module is not None


dsk = DuckArrayModule("dask")
dask_version = dsk.version
dask_array_type = dsk.type

sp = DuckArrayModule("sparse")
sparse_array_type = sp.type
sparse_version = sp.version

cupy_array_type = DuckArrayModule("cupy").type


def is_dask_collection(x):
if DuckArrayModule("dask").available:
if dsk.available:
from dask.base import is_dask_collection

return is_dask_collection(x)
Expand All @@ -54,14 +65,3 @@ def is_dask_collection(x):

def is_duck_dask_array(x):
return is_duck_array(x) and is_dask_collection(x)


dsk = DuckArrayModule("dask")
dask_version = dsk.version
dask_array_type = dsk.type

sp = DuckArrayModule("sparse")
sparse_array_type = sp.type
sparse_version = sp.version

cupy_array_type = DuckArrayModule("cupy").type