Don't swallow KeyboardInterrupt/SystemExit in NPUOpBuilder#8096
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delock merged 1 commit intoJun 29, 2026
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installed_cann_version() was wrapped in `except BaseException`, which also swallows KeyboardInterrupt/SystemExit and prints a misleading 'ascend_cann is missing' message. Use `except Exception` so normal failures are still handled but interrupts propagate. Addresses deepspeedai#8093. Signed-off-by: ajinkyajawale14499 <26092430+ajinkyajawale14499@users.noreply.github.com>
delock
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Jun 29, 2026
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Addresses #8093.
NPUOpBuilder.__init__wrapsinstalled_cann_version()inexcept BaseException:, which also catchesKeyboardInterruptandSystemExitand then prints"... ascend_cann is missing, npu ops cannot be compiled!". So hitting Ctrl+C during that call is silently swallowed and turned into a misleading message.This changes it to
except Exception:, which still catches every normal failure mode (missing CANN path, env var, or version lookup error) but lets interrupts propagate.Scope note: this is the only
BaseException/bare-exceptclause in the codebase. Theexcept Exception:clauses do not catchKeyboardInterrupt/SystemExit(those areBaseException, notException), so they are out of scope for this specific impact. Narrowing those to more specific types would be a separate, larger change.pre-commit (yapf / flake8 / codespell / license) passes.