Python 3.5 - Quandl 错误处理

Python 3.5 - Quandl error handling

正在尝试找出如何处理错误:

quandl.errors.quandl_error.NotFoundError: (Status 404) (Quandl Error QECx02) You have submitted an incorrect Quandl code. Please check your Quandl codes and try again.

这是我想要例外的代码片段:

            source = Q.get(query_site, authtoken=secret)
            df = df.join(source, how='outer')

如果出现错误,我想 break 退出。我的 except 声明会怎样?我尝试了 NotFoundError 但它似乎没有用。

正在处理 NotFoundError

from quandl.errors.quandl_error import NotFoundError

try:
    source = Q.get(query_site, authtoken=secret)
    df = df.join(source, how='outer')
except NotFoundError as e:
    print('error: {} '.format(str(e)))