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Merged
rapids-bot merged 4 commits into from
Jan 13, 2026
Merged

Improve Error Messages from MissingUCXX #5378

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2995c62
improve missingucxx error
alexbarghi-nv Dec 22, 2025
51cdb50
Merge branch 'main' into improve-ucx-error
alexbarghi-nv Jan 2, 2026
3d1fd37
improve error message
alexbarghi-nv Jan 5, 2026
33f9a1a
Merge branch 'main' into improve-ucx-error
alexbarghi-nv Jan 7, 2026
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10 changes: 8 additions & 2 deletions python/pylibcugraph/pylibcugraph/comms/cugraph_nccl_comms.py
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
# SPDX-FileCopyrightText: Copyright (c) 2024-2025, NVIDIA CORPORATION.
# SPDX-FileCopyrightText: Copyright (c) 2024-2026, NVIDIA CORPORATION.
# SPDX-License-Identifier: Apache-2.0

import math
Expand All @@ -17,7 +17,13 @@ class MissingUCXX:
def __call__(self, *args, **kwargs):
raise ModuleNotFoundError(
"raft-dask and/or ucxx could not be imported"
" but are required for MG operations"
" but are required for multi-GPU operations"
)

def __getattr__(self, name):
raise ModuleNotFoundError(
"raft-dask and/or ucxx could not be imported"
" but are required for multi-GPU operations"
)

nccl = MissingUCXX()
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