我尝试使用wrds.Connection()函数通过 Google Colab 从 WRDS 访问数据。但我得到了 OperationalError。我之前多次通过 Google Colab 从 WRDS 访问数据，但这是我第一次遇到这个问题。我多次更改密码，计算机，浏览器，但仍然无法正常工作。
任何人都请看一下并给我评论，以便我可以解决这个问题。非常感谢！
Enter your WRDS username [root]:.........
Enter your password:........
WRDS recommends setting up a .pgpass file.
You can find more info here:
https://www.postgresql.org/docs/9.5/static/libpq-pgpass.html.
There was an error with your password.
---------------------------------------------------------------------------
OperationalError Traceback (most recent call last)
/usr/local/lib/python3.7/dist-packages/sqlalchemy/engine/base.py in _wrap_pool_connect(self, fn, connection)
3210 try:
-> 3211 return fn()
3212 except dialect.dbapi.Error as e:
83 frames
OperationalError: fe_sendauth: no password supplied
The above exception was the direct cause of the following exception:
OperationalError Traceback (most recent call last)
OperationalError: (psycopg2.OperationalError) fe_sendauth: no password supplied
(Background on this error at: http://sqlalche.me/e/14/e3q8)
During handling of the above exception, another exception occurred:
OperationalError Traceback (most recent call last)
OperationalError: could not translate host name "12GO@wrds-pgdata.wharton.upenn.edu" to address: Name or service not known
The above exception was the direct cause of the following exception:
OperationalError Traceback (most recent call last)
/usr/local/lib/python3.7/dist-packages/psycopg2/__init__.py in connect(dsn, connection_factory, cursor_factory, **kwargs)
120
121 dsn = _ext.make_dsn(dsn, **kwargs)
--> 122 conn = _connect(dsn, connection_factory=connection_factory, **kwasync)
123 if cursor_factory is not None:
124 conn.cursor_factory = cursor_factory
OperationalError: (psycopg2.OperationalError) could not translate host name "12GO@wrds-pgdata.wharton.upenn.edu" to address: Name or service not known
(Background on this error at: http://sqlalche.me/e/14/e3q8)