从 Yahoo 财务包中提取 Industry/Sector 时出现问题

Question

我必须更改我的问题主题以反映我的实际问题。

如果我用 3 只股票尝试下面的示例，代码运行良好。但是，如果我添加更多代码，我会得到 'Key error'。请帮忙。

代码：

stocks = ['ADSK', 'DDD', 'DM', 'FARO', 'MTLS', 'SSYS', 'XONE', 'AAPL', 'NXTG', 'QCOM']
    
    import yfinance as yf
    import pandas as pd
    
    df = pd.DataFrame()
    for stock in stocks:
        info = yf.Ticker(stock).info
        industry = info['industry']
        beta = info['beta']
        sector = info['sector']
        df = df.append({'Stock':stock,'Industry':industry,'Beta':beta,'Sector':sector}, ignore_index=True)

错误如下：

---------------------------------------------------------------------------
KeyError                                  Traceback (most recent call last)
<ipython-input-35-8ae147fa8723> in <module>
      7 for stock in stocks:
      8     info = yf.Ticker(stock).info
----> 9     industry = info['industry']
     10     beta = info['beta']
     11     sector = info['sector']

KeyError: 'industry'

Answer 1

NXTG 股票既没有“行业”字段，也没有“beta”字段。字典方法 get() 可用于避免 KeyError:

stocks = ['ADSK', 'DDD', 'DM', 'FARO', 'MTLS', 'SSYS', 'XONE', 'AAPL', 'NXTG', 'QCOM']
    
import yfinance as yf
import pandas as pd
    
df = pd.DataFrame()
for stock in stocks:
  info = yf.Ticker(stock).info
  industry = info.get('industry')
  beta = info.get('beta')
  sector = info.get('sector')
  df = df.append({'Stock':stock,'Industry':industry,'Beta':beta,'Sector':sector}, ignore_index=True)

df

这将给出以下结果：

从 Yahoo 财务包中提取 Industry/Sector 时出现问题

Issues while extracting Industry/Sector from Yahoo finance package

python

yahoo-finance

pandas