Python KeyError:'；历史价格商店'；

当我学习如何从标准普尔500指数的维基百科获取数据时 遇到一些错误，我的任务是从wikipedia获取数据并使用python进行分析，他们都在关注教程视频，我是python或编码的初学者，
这是我的密码

import bs4 as bs
import datetime as dt
import os
import pandas as pd
import pandas_datareader.data as web
import pickle
import requests


def save_sp500_tickers():
    resp = requests.get(
        'https://en.wikipedia.org/wiki/List_of_S%26P_500_companies')
    soup = bs.BeautifulSoup(resp.text, "lxml")
    table = soup.find('table', {'class': 'wikitable sortable'})
    tickers = []
    for row in table.findAll('tr')[1:]:
        ticker = row.findAll('td')[0].text
        tickers.append(ticker)

    with open("sp500tickers.pickle", "wb") as f:
        pickle.dump(tickers, f)
        print(tickers)
    return tickers
   #return tickers


# save_sp500_tickers()


def get_data_from_yahoo(reload_sp500=False):
    if reload_sp500:
        tickers = save_sp500_tickers()
    else:
        with open("sp500tickers.pickle", "rb") as f:
            tickers = pickle.load(f)

    if not os.path.exists('stock_dfs'):
        os.makedirs('stock_dfs')

    start = dt.datetime(2000,1,1)
    end = dt.datetime(2016,12,31)

    for ticker in tickers:
        if not os.path.exists('stock_dfs/{}.csv'.format(ticker)):
            df = web.DataReader(ticker, 'yahoo', start, end)
            df.to_csv('stock_dfs/{}.csv'.format(ticker))
        else:
            print('Already have {}'.format(ticker))


get_data_from_yahoo()

我已经修改了所有的格式和缩进错误，但是终端说

traceback (most recent call last):
  File "C:\Users\CNTHWAN8\AppData\Local\Programs\Python\Python37\lib\site-packages\pandas_datareader\yahoo\daily.py", line 157, in _read_one_data
    data = j["context"]["dispatcher"]["stores"]["HistoricalPriceStore"]
KeyError: 'HistoricalPriceStore'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "c:/Users/CNTHWAN8/Desktop/personal/Python/salesorder/Python/sp500 companites.py", line 52, in <module>
    get_data_from_yahoo()
  File "c:/Users/CNTHWAN8/Desktop/personal/Python/salesorder/Python/sp500 companites.py", line 46, in get_data_from_yahoo
    df = web.DataReader(ticker, 'yahoo', start, end)
  File "C:\Users\CNTHWAN8\AppData\Local\Programs\Python\Python37\lib\site-packages\pandas\util\_decorators.py", line 208, in wrapper
    return func(*args, **kwargs)
  File "C:\Users\CNTHWAN8\AppData\Local\Programs\Python\Python37\lib\site-packages\pandas_datareader\data.py", line 387, in DataReader
    session=session,
  File "C:\Users\CNTHWAN8\AppData\Local\Programs\Python\Python37\lib\site-packages\pandas_datareader\base.py", line 251, in read
    df = self._read_one_data(self.url, params=self._get_params(self.symbols))
  File "C:\Users\CNTHWAN8\AppData\Local\Programs\Python\Python37\lib\site-packages\pandas_datareader\yahoo\daily.py", line 160, in _read_one_data
    raise RemoteDataError(msg.format(symbol, self.__class__.__name__))
pandas_datareader._utils.RemoteDataError: No data fetched for symbol MMM
 using YahooDailyReader

C:\Users\CNTHWAN8\Desktop\personal\Python\salesorder\Python>C:/Users/CNTHWAN8/AppData/Local/Programs/Python/Python37/python.exe "c:/Users/CNTHWAN8/Desktop/personal/Python/salesorder/Python/sp500 companites.py"
Traceback (most recent call last):
  File "C:\Users\CNTHWAN8\AppData\Local\Programs\Python\Python37\lib\site-packages\pandas_datareader\yahoo\daily.py", line 157, in _read_one_data
    data = j["context"]["dispatcher"]["stores"]["HistoricalPriceStore"]
KeyError: 'HistoricalPriceStore'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "c:/Users/CNTHWAN8/Desktop/personal/Python/salesorder/Python/sp500 companites.py", line 51, in <module>
    get_data_from_yahoo()
  File "c:/Users/CNTHWAN8/Desktop/personal/Python/salesorder/Python/sp500 companites.py", line 45, in get_data_from_yahoo
    df = web.DataReader(ticker, 'yahoo', start, end)
  File "C:\Users\CNTHWAN8\AppData\Local\Programs\Python\Python37\lib\site-packages\pandas\util\_decorators.py", line 208, in wrapper
    return func(*args, **kwargs)
  File "C:\Users\CNTHWAN8\AppData\Local\Programs\Python\Python37\lib\site-packages\pandas_datareader\data.py", line 387, in DataReader
    session=session,
  File "C:\Users\CNTHWAN8\AppData\Local\Programs\Python\Python37\lib\site-packages\pandas_datareader\base.py", line 251, in read
    df = self._read_one_data(self.url, params=self._get_params(self.symbols))
  File "C:\Users\CNTHWAN8\AppData\Local\Programs\Python\Python37\lib\site-packages\pandas_datareader\yahoo\daily.py", line 160, in _read_one_data
    raise RemoteDataError(msg.format(symbol, self.__class__.__name__))
pandas_datareader._utils.RemoteDataError: No data fetched for symbol MMM
 using YahooDailyReader

回溯（最近一次呼叫最后一次）：
文件“C:\Users\CNTHWAN8\AppData\Local\Programs\Python37\lib\site packages\pandas\u datareader\yahoo\daily.py”，第157行，在_read\u one\u data中
数据=j[“上下文”][“调度程序”][“存储”][“历史价格存储”]
KeyError:“HistoricalPriceStore”
在处理上述异常期间，发生了另一个异常：
回溯（最近一次呼叫最后一次）：
文件“c:/Users/CNTHWAN8/Desktop/personal/Python/salesforder/Python/sp500 companites.py”，第52行，在
从雅虎（）获取数据
文件“c:/Users/CNTHWAN8/Desktop/personal/Python/salesforder/Python/sp500 companites.py”，第46行，从雅虎获取数据
df=web.DataReader（股票代码'yahoo'，开始，结束）
包装器中的文件“C:\Users\CNTHWAN8\AppData\Local\Programs\Python37\lib\site packages\pandas\util\\u decorators.py”，第208行
返回函数（*args，**kwargs）
datareader中第387行的文件“C:\Users\CNTHWAN8\AppData\Local\Programs\Python37\lib\site packages\pandas\u datareader\data.py”
会话=会话，
文件“C:\Users\CNTHWAN8\AppData\Local\Programs\Python37\lib\site packages\pandas\u datareader\base.py”，第251行，处于读取状态
df=self.\u读取一个数据（self.url，params=self.\u获取参数（self.symbols））
文件“C:\Users\CNTHWAN8\AppData\Local\Programs\Python37\lib\site packages\pandas\u datareader\yahoo\daily.py”，第160行，在_read\u one\u data中
引发RemoteDataError（消息格式（符号，self.\uuuuuuuuuuuuuuuuuuuuuuuuuuuuu类\uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu名称）
pandas\u datareader.\u utils.RemoteDataError:没有为符号MMM获取数据
使用YahooDailyReader
C:\Users\CNTHWAN8\Desktop\personal\Python\salesforder\Python>C:/Users/CNTHWAN8/AppData/Local/Programs/Python/Python37/Python.exe“C:/Users/CNTHWAN8/Desktop/personal/Python/salesforder/Python/sp500 companites.py”
回溯（最近一次呼叫最后一次）：
文件“C:\Users\CNTHWAN8\AppData\Local\Programs\Python37\lib\site packages\pandas\u datareader\yahoo\daily.py”，第157行，在_read\u one\u data中
数据=j[“上下文”][“调度程序”][“存储”][“历史价格存储”]
KeyError:“HistoricalPriceStore”
在处理上述异常期间，发生了另一个异常：
回溯（最近一次呼叫最后一次）：
文件“c:/Users/CNTHWAN8/Desktop/personal/Python/salesforder/Python/sp500 companites.py”，第51行，在
从雅虎（）获取数据
文件“c:/Users/CNTHWAN8/Desktop/personal/Python/salesforder/Python/sp500 companites.py”，第45行，从雅虎获取数据
df=web.DataReader（股票代码'yahoo'，开始，结束）
包装器中的文件“C:\Users\CNTHWAN8\AppData\Local\Programs\Python37\lib\site packages\pandas\util\\u decorators.py”，第208行
返回函数（*args，**kwargs）
datareader中第387行的文件“C:\Users\CNTHWAN8\AppData\Local\Programs\Python37\lib\site packages\pandas\u datareader\data.py”
会话=会话，
文件“C:\Users\CNTHWAN8\AppData\Local\Programs\Python37\lib\site packages\pandas\u datareader\base.py”，第251行，处于读取状态
df=self.\u读取一个数据（self.url，params=self.\u获取参数（self.symbols））
文件“C:\Users\CNTHWAN8\AppData\Local\Programs\Python37\lib\site packages\pandas\u datareader\yahoo\daily.py”，第160行，在_read\u one\u data中
引发RemoteDataError（消息格式（符号，self.\uuuuuuuuuuuuuuuuuuuuuuuuuuuuu类\uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu名称）
pandas\u datareader.\u utils.RemoteDataError:没有为符号MMM获取数据
使用YahooDailyReader

---

所以我有点困惑到底发生了什么以及如何解决，这里的任何人都可以帮助我，非常感谢

问题是

\n

在

股票代码中

-你必须剥去它才能得到ie.

MMM

而不是

MMM\n

ticker = row.findAll('td')[0].text.strip()

然后开始创建csv文件

---

还有其他问题

对于

BKR

（和其他一些），它显示错误

键错误：“日期”

。从服务器读取数据可能有问题。需要

try/except

跳过此问题

try:
    df = web.DataReader(ticker, 'yahoo', start, end)
    df.to_csv('stock_dfs/{}.csv'.format(ticker))
except Exception as ex:
    print('Error:', ex)

---

---

您运行的是

get\u data\u from\u yahoo（）

，而不是您的维基百科代码…什么教程？这个教程有多长时间了？可能页面已更改，现在教程不适合页面。它可以工作，非常感谢，我仍然需要学习更多的知识。整个下午都卡在那里，无法再移动一步

import bs4 as bs
import datetime as dt
import os
import pandas as pd
import pandas_datareader.data as web
import pickle
import requests


def save_sp500_tickers():
    resp = requests.get('https://en.wikipedia.org/wiki/List_of_S%26P_500_companies')

    soup = bs.BeautifulSoup(resp.text, "lxml")
    table = soup.find('table', {'class': 'wikitable sortable'})

    tickers = []

    for row in table.findAll('tr')[1:]:
        ticker = row.findAll('td')[0].text.strip()
        tickers.append(ticker)

    with open("sp500tickers.pickle", "wb") as f:
        pickle.dump(tickers, f)
        print(tickers)

    return tickers


def get_data_from_yahoo(reload_sp500=False):
    if reload_sp500:
        tickers = save_sp500_tickers()
    else:
        with open("sp500tickers.pickle", "rb") as f:
            tickers = pickle.load(f)

    if not os.path.exists('stock_dfs'):
        os.makedirs('stock_dfs')

    start = dt.datetime(2000, 1, 1)
    end = dt.datetime(2016, 12, 31)

    for ticker in tickers:

        print(ticker)

        if not os.path.exists('stock_dfs/{}.csv'.format(ticker)):
            try:
                df = web.DataReader(ticker, 'yahoo', start, end)
                df.to_csv('stock_dfs/{}.csv'.format(ticker))
            except Exception as ex:
                print('Error:', ex)
        else:
            print('Already have {}'.format(ticker))


get_data_from_yahoo(True)