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Does anyone recently have problem with this url "http://download.finance.yahoo.com/d/quotes.csv?f=snl1&s={}" in helpers.py of pset7?

Before yesterday, the lookup() in helpers.py worked fine but since yesterday, it have started return None for every symbol, even FB or AAPL. I have tried the url: Does anyone recently have problem with this url http://download.finance.yahoo.com/d/quotes.csv?f=snl1&s=AAPL on my browser and it returned "Sorry, Unable to process request at this time -- error 999." I guess there is something wrong with Yahoo Finance but staff solution at http://finance.cs50.net/ is still working.

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  • Same thing has happened to me. My research into the problem led me to this page [link] (forums.yahoo.net/t5/Known-issues-and-updates/…) but that seems of little help and doesn't explain why the staff solution still works. Commented Nov 2, 2017 at 18:34

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Thank Brenda Anderson from Facebook group CS50 for providing a new code for helpers.py

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  • My thanks as well :) Commented Nov 2, 2017 at 23:35
  • Thank you so much. Been stuck at this for so long because i thought nothing will ever go wrong with helpers Commented Dec 5, 2017 at 5:00
  • It still doesn't work for me even though I've changed the code. Someone help pls Commented Mar 5, 2018 at 14:31
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Yahoo finance has killed it's API

You can read more about the topic via the Hacker News discussion linked below.

https://news.ycombinator.com/item?id=15616880

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Use https://iextrading.com/developer/docs/ instead of Yahoo Finance services.

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