通过 Pandas Data-Reader 获取 Quandl 数据

Getting Quandl Data via Pandas Data-Reader

提问人:Kalev Maricq 提问时间:1/21/2019 更新时间:2/9/2023 访问量:5934

问:

我在使用 pandas-datareader 从 Quandl 导入数据时遇到问题。这是我尝试过的代码(使用真正的 API 密钥):

import pandas_datareader.data as pdr
from datetime import date

start=date(1970,1,1)
end=date.today()
ticker='F'
qkey=[My API Key]

pdr.QUANDL_API_KEY=qkey
QUANDL_API_KEY=qkey
pdrquandl=pdr.DataReader('WIKI/'+ticker,'quandl',start,end)      
pdrquandl=pdr.DataReader('WIKI/'+ticker,'quandl',start,end,api_key=qkey)

运行此命令时,我收到以下错误消息:

>>> pdrquandl=pdr.DataReader('WIKI/'+ticker,'quandl',start,end)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\Python37\lib\site-packages\pandas_datareader\data.py", line 379, in DataReader
    session=session, api_key=access_key).read()
  File "C:\Python37\lib\site-packages\pandas_datareader\quandl.py", line 54, in __init__
    raise ValueError('The Quandl API key must be provided either '
ValueError: The Quandl API key must be provided either through the api_key variable or through the environmental variable QUANDL_API_KEY.
>>> pdrquandl=pdr.DataReader('WIKI/'+ticker,'quandl',start,end,api_key=qkey)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: DataReader() got an unexpected keyword argument 'api_key'

我错过了什么?如何提供 API 密钥?

python pandas-datareader

评论


答:

6赞 lehiester 1/21/2019 #1

源代码显示了 DataReader 工厂函数如何将其传递给 Quandl 读取器:

elif data_source == "quandl":
        return QuandlReader(symbols=name, start=start, end=end,
                            retry_count=retry_count, pause=pause,
                            session=session, api_key=access_key).read()

因此,请尝试将其传递给 DataReader,并带有以下参数:access_key

pdrquandl=pdr.DataReader('WIKI/'+ticker,'quandl',start,end,access_key=qkey)
0赞 Marcell Kovacs 5/26/2020 #2

对 quandl 的处理方法略有不同

import quandl 
quandl.ApiConfig.api_key = "API-KEY"
aapl = quandl.get("WIKI/TICKER", start_date="YEAR-MONTH-DAY", end_date="YEAR-MONTH-DAY")
0赞 cryptomamy 2/6/2021 #3

配置

  • MAC操作系统
  • VS 代码
  • 蟒蛇 3.x

方法

  • 运行以下代码:
import pandas_datareader.data as pdr
api_key = [YOUR_API_KEY]
pdrquandl = pdr.DataReader("WIKI/TICKER", 'quandl', start_date, end_date, api_key)