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Enable dask dispatch to cuDF's is_categorical_dtype for cuDF objects #7740

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merged 6 commits into from
Mar 30, 2021
+54 −8
Merged

Enable dask dispatch to cuDF's is_categorical_dtype for cuDF objects #7740

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cf0ad34
add dispatch from dask
brandon-b-miller Mar 26, 2021
e377f89
remove unnecessary code
brandon-b-miller Mar 26, 2021
b9cee52
add tests
brandon-b-miller Mar 29, 2021
c629417
bump and test dask version
brandon-b-miller Mar 30, 2021
d6240ce
Update ci/gpu/build.sh
brandon-b-miller Mar 30, 2021
22ca8f3
Merge branch 'branch-0.19' into fix-7111-is-categorical-dtype-dispatch
Mar 30, 2021
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13 changes: 12 additions & 1 deletion python/dask_cudf/dask_cudf/backends.py
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Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,11 @@

from dask.dataframe.categorical import categorical_dtype_dispatch
from dask.dataframe.core import get_parallel_type, make_meta, meta_nonempty
from dask.dataframe.methods import concat_dispatch, tolist_dispatch
from dask.dataframe.methods import (
concat_dispatch,
is_categorical_dtype_dispatch,
tolist_dispatch,
)
from dask.dataframe.utils import (
UNKNOWN_CATEGORIES,
_nonempty_scalar,
Expand Down Expand Up @@ -220,6 +224,13 @@ def tolist_cudf(obj):
return obj.to_arrow().to_pylist()


@is_categorical_dtype_dispatch.register(
(cudf.Series, cudf.Index, cudf.CategoricalDtype, Series)
)
def is_categorical_dtype_cudf(obj):
return cudf.utils.dtypes.is_categorical_dtype(obj)


try:

from dask.dataframe.utils import group_split_dispatch, hash_object_dispatch
Expand Down