如何檢查代碼是否為 yfinance 庫

Question

我正在嘗試通過 yfinance 查找有關某些股票代碼的一些信息。 但是，每當我嘗試在不存在的股票代碼上搜索信息時都會遇到錯誤。 例如，這是我的代碼。

import yfinance as yf

with open("/2019.txt") as f:
    content = f.readlines()
# content is a list with all tickers in "/2019.txt"
content = [x.strip() for x in content] 

print(content)

for x in content:
    y = yf.Ticker(x)
    z = y.info['volume']
    print(x)
    print(z)

這是我收到的錯誤：

/usr/local/lib/python3.6/dist-packages/yfinance/base.py in _get_fundamentals(self, kind, proxy)
        338                 self._info.update(data[item])
        339 
    --> 340         self._info['regularMarketPrice'] = self._info['regularMarketOpen']
        341         self._info['logo_url'] = ""
        342         try:
    
    KeyError: 'regularMarketOpen'

為了解決這個問題，我嘗試了：

import yfinance as yf

with open("/2019.txt") as f:
    content = f.readlines()
# content is a list with all tickers in "/2019.txt"
content = [x.strip() for x in content] 

print(content)

for x in content:
    y = yf.Ticker(x)
    if(y==1):
      z = y.info['volume']
      print(x)
      print(z)
    elif(y==0):
      print(y)
      print( "does not exist")

但是現在它除了列表中的代碼之外什么都不打印。

有誰知道如何解決這個問題？ 謝謝！

Answer 1

嘗試獲取代碼的信息，如果您遇到異常，您可能無法使用它做更多的事情：

import yfinance as yf

for t in ["MSFT", "FAKE"]:
  ticker = yf.Ticker(t)
  info = None

  try:
    info = ticker.info
  except:
    print(f"Cannot get info of {t}, it probably does not exist")
    continue
  
  # Got the info of the ticker, do more stuff with it
  print(f"Info of {t}: {info}")

查看有關此 colab的演示。