yfinance: Getting this Error: json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

Seems like an issue on Yahoo’s end. Temporary fix:

while True:
  try:                                                                                         
    data = yf.download(tickers='AMZN GOOG MSFT', start=START_DATE, end=datetime.datetime.today(), actions=True, threads=False)
    break
  except:                
    continue
# Use `data` here...

This will keep retrying until it manages to retrieve all the tickers without an error - for me, it took ~10-15 seconds for 16 tickers, but obviously will be worse the more tickers there are.

Would be great if a retry mechanism could be implemented in yfinance itself, possibly with sane default values and/or possibility to pass a retries number to the download function, to avoid similar issues in the future.

Having the same issue (script was still working correctly yesterday)

I fixed it.

This problem is due to the server blocking http get requests (for example, requests from China mainland). The following is the url for yfinance to download stock data. If you can open it normally to get the data, the download function of yfinance is generally ok, otherwise the corresponding error will be displayed： [https://query2.finance.yahoo.com/v8/finance/chart/^DJI]

I downloaded the json of the corresponding data through vpn, and then modified yfinance to read the cached json file instead of downloading it through http get to solve this problem.

You can try to use the construction (try: … except: …) together with threading=False, as a temporary measure it works for me.

Yahoo randomly returns “HTTP Status 404” instead of JSON. Some kind of query limiter?

ok, i also have a vba script i wrote originally that downloads csv files… that is experiencing the same symptoms so i’m guessing its definitely an issue at yahoos end generating the JSON (i think this uses the JSON outputs).

I’ve got try: except: but for some reason I see the error and have to ctrl c, then it gets to the except print message I have, otherwise it doesn’t go past the error

Initially, when threads=True, the (try: except 😃 construct did not catch this error, the script started working normally only when threads=False, at least for me.

thanks, I tried this already, I have a comment from 3 hours ago where I tried the below as well 😦 also have try and excepts show_errors=False, threading=False

apologies, I just noticed my typo with threads. I think its running through my code at least now, thanks

I’ve got try: except: but for some reason I see the error and have to ctrl c, then it gets to the except print message I have, otherwise it doesn’t go past the error

Initially, when threads=True, the (try: except 😃 construct did not catch this error, the script started working normally only when threads=False, at least for me.

thanks, I tried this already, I have a comment from 3 hours ago where I tried the below as well 😦 also have try and excepts show_errors=False, threading=False

I’ve got try: except: but for some reason I see the error and have to ctrl c, then it gets to the except print message I have, otherwise it doesn’t go past the error

Initially, when threads=True, the (try: except 😃 construct did not catch this error, the script started working normally only when threads=False, at least for me.

You can try to use the construction (try: … except: …) together with threading=False, as a temporary measure it works for me.

Thanks. Worked fine for me also

Well at least it is not just myself. Thanks for the tip

Also having the same issue - getting it for different stocks each time. Any solution?

Thanks!