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过去几周我一直在使用 yfinance 来提取一些股票的历史数据。我通常在每周结束时运行该程序以存储该周的数据，但是这个问题错误只是在上周随机开始发生。下面是调用 MMM 历史价格数据的简单示例。但是，期权合约方法也会发生同样的错误。

import yfinance as yf
mmm = yf.Ticker('MMM')
mmm.history()

错误堆栈：

JSONDecodeError                           Traceback (most recent call last)
<ipython-input-6-68e978705cca> in <module>
      1 mmm = yf.Ticker('MMM')
----> 2 mmm.history()

~/opt/anaconda3/lib/python3.8/site-packages/yfinance/base.py in history(self, period, interval, start, end, prepost, actions, auto_adjust, back_adjust, proxy, rounding, tz, **kwargs)
    155                                "Our engineers are working quickly to resolve "
    156                                "the issue. Thank you for your patience.")
--> 157         data = data.json()
    158 
    159         # Work with errors

~/opt/anaconda3/lib/python3.8/site-packages/requests/models.py in json(self, **kwargs)
    896                     # used. …