金融 json.decoder.JSONDecodeError

Question

今天之前它一直在工作。不知道为什么今天不行了

import yfinance as yf
df = yf.Ticker('MMM').history(start='2021-01-01',end='2021-07-10')

File "D:\anaconda3\envs\tensorflow\lib\site-packages\yfinance\base.py", line 157, in history
data = data.json()
File "D:\anaconda3\envs\tensorflow\lib\site-packages\requests\models.py", line 900, in json
return complexjson.loads(self.text, **kwargs)
File "D:\anaconda3\envs\tensorflow\lib\json\__init__.py", line 357, in loads
return _default_decoder.decode(s)
File "D:\anaconda3\envs\tensorflow\lib\json\decoder.py", line 337, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "D:\anaconda3\envs\tensorflow\lib\json\decoder.py", line 355, in raw_decode
raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

Answer 1

我升级到最新版本，问题解决了。最新版本的安装代码：pip install yfinance==0.1.62

Answer 2

如果有人仍然面临 jsonDecoder 错误的问题。尝试从 pycharm 文件夹的 venv 中删除 yfin。不知何故，我的系统没有在 pycharm 的 venv 中升级 yfin。我不得不手动删除 yfin 文件夹并升级 yfin。它现在为我工作。谢谢

Answer 3

下面的补丁解决了我的问题：在 /usr/local/lib/python3.8/dist-packages/yfinance/base.py 中进行以下更改：

        # Getting data from json
        num_tries = 4
        url = "{}/v8/finance/chart/{}".format(self._base_url, self.ticker)
        while num_tries > 0:
            data = self.session.get(
                url=url,
                params=params,
                proxies=proxy,
                headers=utils.user_agent_headers
            )
            if "Will be right back" in data.text:
                raise RuntimeError("*** YAHOO! FINANCE IS CURRENTLY DOWN! ***\n"
                               "Our engineers are working quickly to resolve "
                               "the issue. Thank you for your patience.")
            if data.status_code == 404:
                _time.sleep(0.5)
                num_tries -= 1
                continue
            else:
                data = data.json()
                break
        if num_tries == 0:
            print("%s failed to get information"%self.ticker)
            data = {}

金融 json.decoder.JSONDecodeError

yfinance json.decoder.JSONDecodeError

python

yfinance