我尝试使用以下指令导入Quandl数据：

quandl.get('WIKI/GOOGL')

出现了以下错误：

Traceback (most recent call last):  File "/home/shravilp/anaconda3/lib/python3.6/site-packages/quandl/connection.py", line 55, in parse    return response.json()  File "/home/shravilp/anaconda3/lib/python3.6/site-packages/requests/models.py", line 850, in json    return complexjson.loads(self.text, **kwargs)  File "/home/shravilp/anaconda3/lib/python3.6/json/__init__.py", line 354, in loads    return _default_decoder.decode(s)  File "/home/shravilp/anaconda3/lib/python3.6/json/decoder.py", line 339, in decode    obj, end = self.raw_decode(s, idx=_w(s, 0).end())  File "/home/shravilp/anaconda3/lib/python3.6/json/decoder.py", line 357, in raw_decode    raise JSONDecodeError("Expecting value", s, err.value) from Nonejson.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

在处理上述异常时，发生了另一个异常：

Traceback (most recent call last):  File "ml1.py", line 4, in <module>    df = quandl.get('WIKI/GOOGL')  File "/home/shravilp/anaconda3/lib/python3.6/site-packages/quandl/get.py", line 48, in get    data = Dataset(dataset_args['code']).data(params=kwargs, handle_column_not_found=True)  File "/home/shravilp/anaconda3/lib/python3.6/site-packages/quandl/model/dataset.py", line 47, in data    return Data.all(**updated_options)  File "/home/shravilp/anaconda3/lib/python3.6/site-packages/quandl/operations/list.py", line 14, in all    r = Connection.request('get', path, **options)  File "/home/shravilp/anaconda3/lib/python3.6/site-packages/quandl/connection.py", line 36, in request    return cls.execute_request(http_verb, abs_url, **options)  File "/home/shravilp/anaconda3/lib/python3.6/site-packages/quandl/connection.py", line 44, in execute_request    cls.handle_api_error(response)  File "/home/shravilp/anaconda3/lib/python3.6/site-packages/quandl/connection.py", line 61, in handle_api_error    error_body = cls.parse(resp)  File "/home/shravilp/anaconda3/lib/python3.6/site-packages/quandl/connection.py", line 57, in parse    raise QuandlError(http_status=response.status_code, http_body=response.text)quandl.errors.quandl_error.QuandlError: (Status 403) Something went wrong. Please try again. If you continue to have problems, please contact us.

以下是我的代码：

import pandas as pdimport quandldf = quandl.get("FRED/GDP")print(df.head())

回答：

根据Quandl API文档，403错误表示您需要API密钥才能访问该数据。以下是解决此问题的步骤：

1.在Quandl上创建一个免费/高级账户。

2.从账户设置选项中生成一个API密钥。

3.在脚本中包含您的API密钥，如下所示：quandl.ApiConfig.api_key = “YOURAPIKEY”。