unitdata.py 文件源码

def __init__(self, path=None):
        self.db_path = path
        if path is None:
            if 'UNIT_STATE_DB' in os.environ:
                self.db_path = os.environ['UNIT_STATE_DB']
            else:
                self.db_path = os.path.join(
                    os.environ.get('CHARM_DIR', ''), '.unit-state.db')
        self.conn = sqlite3.connect('%s' % self.db_path)
        self.cursor = self.conn.cursor()
        self.revision = None
        self._closed = False
        self._init()