通过Google Colab访问WRDS数据: OperationalError

Question

我曾尝试使用wrds.Connection()函数通过Google Colab访问WRDS中的数据。但我拿到了OperationalError我以前通过Google Colab多次访问WRDS中的数据，但这是我第一次遇到这个问题。我多次更改密码、电脑、浏览器，但仍然不起作用。

任何人请看一看，并给我一个评论，这样我就可以通过这个问题。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) 

Answer 1

我没有遇到任何麻烦。我使用!pip install wrds安装了wrds库，然后运行conn = wrds.Connection()，输入我的WRDS ID和密码，一切都正常了。一个想法可能是重新安装库，然后再试一次。