I was just using pandas datareader to get the stock data for the past two weeks or so and it was working fine. All of a sudden since yesterday the date provided wasnt working anymore. It just gives me the past year data and I cant change the date. Used to work with the one commented out, but now its not. I even changed it to use datetime object, but still not working. Any idea? I updated pandas and pandas_datareader still no luck. Used another computer still didnt work. Did they just recently change the API?
from pandas_datareader import data
import datetime
#start = '2010-01-01'
#end = '2017-7-31'
start = datetime.datetime(2010, 1, 1)
end = datetime.datetime(2017,7, 31)
f = data.DataReader('AAPL', 'google', start, end)
print(f.head())
output:
Open High Low Close Volume
Date
2016-09-19 115.19 116.18 113.25 113.58 47023046
2016-09-20 113.05 114.12 112.51 113.57 34514269
2016-09-21 113.85 113.99 112.44 113.55 36003185
2016-09-22 114.35 114.94 114.00 114.62 31073984
2016-09-23 114.42 114.79 111.55 112.71 52481151
Google has changed the Google Finance URL to finance.google.com/finance/historical rather than www.google.com/finance/historical, which is used as the URL in the pandas_datareader.
Server returns HTTP 302 when fetching data from the old URL and redirect to the new URL. However, the parameters startdate/enddate are missing during the HTTP redirection.
The url is set in the source code: https://github.com/pydata/pandas-datareader/blob/master/pandas_datareader/google/daily.py
Maybe you can modify the URL and use your own version of pandas_datareader.
The url has now been updated, so upgrading datareader will fix the problem:
sudo pip install pandas_datareader --upgrade
According to data reader docs, Yahoo!, Google Options, Google Quotes and EDGAR have been immediately deprecated due to large changes in their API and no stable replacement. Use 'iex' instead
import pandas_datareader.data as web
import datetime as dt
start = dt.datetime(2018,1,1)
end = dt.datetime(2019,1,1)
aapl = web.DataReader('AAPL', 'iex', start, end)
aapl.shape
(251, 5)
aapl.head()
open high low close volume
date
2018-01-02 167.6431 169.7514 166.7564 169.7120 25555934
2018-01-03 169.9780 171.9682 169.4165 169.6825 29517899
2018-01-04 169.9879 170.9041 169.5347 170.4707 22434597
2018-01-05 170.8746 172.7760 170.4904 172.4115 23660018
2018-01-08 171.7711 173.0125 171.3573 171.7711 20567766
来源：https://stackoverflow.com/questions/46259528/datareader-google-finance-date-not-working