linux mint 19.3, python 3.6
I wrote a program to download stock info from yahoo using yfinance. I
have been running it unchanged for the past 3 months, today it gave an
error. When looping through a list of stocks the error is random, never
the same position in the list.
I wrote the following little test script to show the error:
import yfinance as yf
import pandas as pd
day = '2020-06-25'
aapl = yf.Ticker('AAPL')
hist = aapl.history(start=day)
print(hist)
close = hist.loc[day]['Close']
I ran it 10 times 8 times I got a dataframe and 2 times I got the error
shown below:
(env36) jfb@jims-mint18 ~ $ /home/jfb/EVs/env36/bin/python3
/home/jfb/Dev/Python/test_yfinance.py
Open High Low Close Volume
Date
2020-06-25 360.70 365.00 357.57 364.84 34380600
2020-06-26 364.41 365.32 353.02 353.63 51270100
(env36) jfb@jims-mint18 ~ $ /home/jfb/EVs/env36/bin/python3
/home/jfb/Dev/Python/test_yfinance.py
Traceback (most recent call last):
File "/home/jfb/Dev/Python/test_yfinance.py", line 13, in <module>
hist = aapl.history(start=day)
File
"/home/jfb/EVs/env36/lib/python3.6/site-packages/yfinance/base.py", line
155, in history
data = data.json()
File
"/home/jfb/EVs/env36/lib/python3.6/site-packages/requests/models.py",
line 897, in json
return complexjson.loads(self.text, **kwargs)
File
"/home/jfb/EVs/env36/lib/python3.6/site-packages/simplejson/__init__.py",
line 518, in loads
return _default_decoder.decode(s)
File
"/home/jfb/EVs/env36/lib/python3.6/site-packages/simplejson/decoder.py",
line 370, in decode
obj, end = self.raw_decode(s)
File
"/home/jfb/EVs/env36/lib/python3.6/site-packages/simplejson/decoder.py",
line 400, in raw_decode
return self.scan_once(s, idx=_w(s, idx).end())
simplejson.errors.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
I don't know pandas that well. My only contact with it is when a module
I am using depends on it. So does the dataframe look correct?
The error complains of line 1, column 1. Just looking at the dataframe
it looks like Date is on a different line from the rest of the headers
or is that just the result of being printed in the terminal?
On the yfinance github issues page there were a few people reporting
this error. A couple of people reported a work around using try/except.
It worked for some people and not others. It didn't work for me.
I'd appreciate any advice you could give.
Thanks, Jim
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