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36ad97337a
Stopping `hermes dashboard` with Ctrl-C while the Kanban dashboard is open prints an ASGI traceback ending in `plugins/kanban/dashboard/plugin_api.py::stream_events` at the `asyncio.sleep(_EVENT_POLL_SECONDS)` line. This is a normal shutdown path: Uvicorn cancels the open websocket task while it is sleeping in the 300 ms poll loop. `asyncio.CancelledError` is a `BaseException` in Python 3.8+ — the bare `except Exception:` handler below the existing `WebSocketDisconnect:` clause does NOT catch it, so the cancellation surfaces as an application traceback and routine dashboard exit looks like a runtime failure. Add an explicit `except asyncio.CancelledError: return` clause beside the existing `WebSocketDisconnect` handler. Disconnection (client closed the tab) and shutdown cancellation (dashboard process exiting) are conceptually different paths but both warrant a quiet return; the two clauses are kept separate to keep that intent explicit. `asyncio` is already imported and used in this scope, so no new import is needed. The bare `except Exception:` handler is preserved verbatim, so genuine runtime failures still log a warning and close the socket cleanly. Closes #20790. |
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|---|---|---|
| .. | ||
| context_engine | ||
| disk-cleanup | ||
| example-dashboard/dashboard | ||
| google_meet | ||
| hermes-achievements | ||
| image_gen | ||
| kanban | ||
| memory | ||
| model-providers | ||
| observability/langfuse | ||
| platforms | ||
| spotify | ||
| strike-freedom-cockpit | ||
| __init__.py | ||