Method _switch_to_memory_history

IPython/core/history.py:721–729

Switch history storage to an in-memory SQLite database.

(self)

        )

    def _switch_to_memory_history(self) -> None:
        """Switch history storage to an in-memory SQLite database."""
        try:
            self.db.close()
        except Exception:
            pass
        self.hist_file = ":memory:"
        self.init_db()
        self.new_session()

    def __del__(self) -> None:
        if self.save_thread is not None: