Fix #804: [Usage]: import ucm_custom_ops报错ModuleNotFoundError: No mod...#898
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Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Closes #804
Purpose
Improve the error message when
ucm_custom_opsis not installed, replacing the bareModuleNotFoundErrorwith an actionable message that tells users exactly how to resolve the issue.Modifications
ucm/sparse/gsa_on_device/gsa_on_device.py: Wrapped theimport ucm_custom_opsstatement (inside theif hasattr(torch, "npu") and torch.npu.is_available()block) in atry/except ModuleNotFoundErrorblock. When the module is missing, re-raises with a message instructing the user to build and install the custom ops viabash ucm/sparse/gsa_on_device/csrc/ascend/build.sh install.Test
Manually verified on an environment without
ucm_custom_opsinstalled: the new error message"ucm_custom_ops is not installed. Please build and install it by running: bash ucm/sparse/gsa_on_device/csrc/ascend/build.sh install"is raised instead of the uninformativeModuleNotFoundError: No module named 'ucm_custom_ops'. Verified that normal execution is unaffected whenucm_custom_opsis present.This PR was created with AI assistance (Claude). The changes were reviewed by quality gates and a critic model before submission.