HKUDS/DeepTutor · error · ValueError

event_type must not be empty

Error message

event_type must not be empty

What it means

Error "event_type must not be empty" thrown in HKUDS/DeepTutor.

Source

Thrown at deeptutor/learning/storage.py:130

        self.changed = created
        self._events: list[tuple[str, dict[str, Any], str, str]] = []
        if created:
            self.emit("path.created", {})

    def touch(self) -> None:
        self.changed = True

    def emit(
        self,
        event_type: str,
        payload: dict[str, Any] | None = None,
        *,
        session_id: str = "",
        turn_id: str = "",
    ) -> None:
        event_name = str(event_type or "").strip()
        if not event_name:
            raise ValueError("event_type must not be empty")
        self.changed = True
        self._events.append(
            (event_name, dict(payload or {}), str(session_id or ""), str(turn_id or ""))
        )

    @property
    def events(self) -> list[tuple[str, dict[str, Any], str, str]]:
        return list(self._events)

    @staticmethod
    def _interaction_from_row(row: sqlite3.Row | None) -> MasteryInteraction | None:
        if row is None:
            return None
        return MasteryInteraction(
            interaction_id=row["interaction_id"],
            path_id=row["path_id"],
            question=json.loads(row["question_json"]),
            status=InteractionStatus(row["status"]),

View on GitHub (pinned to 3e82f13042)

When it happens

Trigger: Thrown at deeptutor/learning/storage.py:130 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of HKUDS/DeepTutor@3e82f13042 (2026-08-27). Data as JSON: /api/errors/21491731fa34dcad. Report an issue: GitHub.