Method as_default

python/graphscope/client/session.py:803–821

Obtain a context manager that make this object as default session. This method is used when a Session is constructed, which will immediately install self as a default session. Raises: ValueError: If default session exist in current context. Returns:

(self)

            pass

    def as_default(self):
        """Obtain a context manager that make this object as default session.

        This method is used when a Session is constructed, which will immediately
        install self as a default session.

        Raises:
            ValueError: If default session exist in current context.

        Returns:
            A context manager using this session as the default session.
        """
        if not _default_session_stack.is_cleared():
            raise ValueError(
                "A default session is already active. You must explicitly call Session.close()."
            )
        # session context manager
        self._default_session = default_session(self)
        self._default_session.__enter__()

    def _unregister_default(self):
        """Remove self from the default session stack."""