workflow3.py 文件源码

def session_id(self):
        """A unique session ID every time the user uses the workflow.

        .. versionadded:: 1.25

        The session ID persists while the user is using this workflow.
        It expires when the user runs a different workflow or closes
        Alfred.

        """
        if not self._session_id:
            sid = os.getenv('_WF_SESSION_ID')
            if not sid:
                from uuid import uuid4
                sid = uuid4().hex
                self.setvar('_WF_SESSION_ID', sid)

            self._session_id = sid

        return self._session_id