[0.2.61] Still 429 Error: Too Many Requests after trying previous fixes

[twnlawr]

Hi all,

I looked at #2480, #2483 and #2422 for solutions, upgraded yfinance to 0.2.61, tried cull_cffi impersonate, but still getting the same error in my local IDE with Python version 3.11.7.

Simple code that replicates the error:
import yfinance as yf
baba = yf.Ticker("BABA")
print(baba.info)

Debug log from yf.enable_debug_mode()
DEBUG get_raw_json(): https://query2.finance.yahoo.com/v10/finance/quoteSummary/BABA
DEBUG Entering get()
DEBUG url=https://query2.finance.yahoo.com/v10/finance/quoteSummary/BABA
DEBUG params={'modules': 'financialData,quoteType,defaultKeyStatistics,assetProfile,summaryDetail', 'corsDomain': 'finance.yahoo.com', 'formatted': 'false', 'symbol': 'BABA'}
DEBUG Entering _get_cookie_and_crumb()
DEBUG cookie_mode = 'basic'
DEBUG Entering _get_cookie_and_crumb_basic()
DEBUG reusing cookie
DEBUG reusing crumb
DEBUG Exiting _get_cookie_and_crumb_basic()
DEBUG Exiting _get_cookie_and_crumb()
DEBUG response code=429
DEBUG toggling cookie strategy basic -> csrf
DEBUG Entering _get_cookie_and_crumb()
DEBUG cookie_mode = 'csrf'
DEBUG Entering _get_crumb_csrf()
DEBUG Failed to find "csrfToken" in response
DEBUG Exiting _get_crumb_csrf()
DEBUG toggling cookie strategy csrf -> basic
DEBUG Entering _get_cookie_and_crumb_basic()
DEBUG loaded persistent cookie
DEBUG reusing cookie
DEBUG crumb = 'Edge: Too Many Requests'
DEBUG Exiting _get_cookie_and_crumb_basic()
DEBUG Exiting _get_cookie_and_crumb()
DEBUG response code=429
DEBUG Exiting get()

Please shed some light on whether I missed something on previous issues or this problem recurs again. Thanks a lot the amazing dev team.

[ValueRaider]

How many requests are you sending?

[edwardtilley]

I get the Too many Requests error with just one yf.Ticker("MSFT") request while running 0.2.61 as well.
This tool has been down for a couple of weeks? As I can see.
What is the yfinance community suggesting is the best course to restore data updates?
My needs are small and I would rather not rewrite my code for TIINGO or TwelveData ... but might have to if this continues

[edwardtilley]

Has anyone tried the 4a91008
hotfix ... ls it a good or terrible idea to update my 0.2.61 files with this workaround?

[ValueRaider]

@edwardtilley you can always rollback https://ranaroussi.github.io/yfinance/development/running.html

[edwardtilley]

I was hoping to confirm was this the latest commit and was it a proven solution first...
Without this double check that this it is working, its a time waster and I haven't done the rollback before either, so I'd rather try it on code known to be tested and working . Ideally :)

[ValueRaider]

yfinance latest release works for the vast majority of users. Most of the exceptions are proven to have old versions.

If you have problem with 0.2.61, then we need you to test and report back.

[edwardtilley]

I wish I was a better reporter. Would it help to share the full detail of the error? I assume yes, so I will post it in a couple of hours.

[twnlawr]

@ValueRaider I only sent 1 request and it didn't work. I tried with the exact simple code that replicates the error and nothing else.

[qqwqqw689]

I got the same problem.

[youngmihuang]

I got the same problem with yfinance-0.2.61

[keithbentrup]

I've noticed that finance.yahoo.com will return a 429 Too Many Requests under certain circumstances regardless of the number of requests.

For example, when I use a local HTTPS proxy that establishes the TLS connection to yahoo directly, a single request causes the 429 Too Many Requests response.

If I switch to a SOCKS5 proxy (just relaying the connection), requests work as expected. If I don't use a proxy at all, the same code also works as expected.

I discovered this while trying to inspect the network traffic with my HTTPS proxy.

My best guess is that finance.yahoo.com is trying to detect and prevent unusual usage even if it's a single request. The "Too Many Requests" is really just the generic response they use for possibly a set of detected behaviors. (I'm not really sure how they detect the local HTTPS proxy though other than possibly how the proxy negotiates the TLS connection differently than a browser or curl_cffi.)

Anyway, just realize that "Too Many Requests" may not be the real underlying issue and maybe try various (i.e. from different IPs) direct, non-proxy, non-shared vpn connections to help diagnose network level issues.

[edwardtilley]

Thanks - will give it a try. I have seen the error with and without VPN - will look into the other suggestions and I agree it's a network level block. I'm on a DHCP provided cable internet so I'm not sure how I'll change IPs... Suggestions welcome and I'll share research also.

…

On Thu, May 29, 2025, 4:50 p.m. Keith Bentrup ***@***.***> wrote: *keithbentrup* left a comment (ranaroussi/yfinance#2518) <#2518 (comment)> I've noticed that finance.yahoo.com will return a 429 Too Many Requests under certain circumstances regardless of the number of requests. For example, when I use a local HTTPS proxy that establishes the TLS connection to yahoo directly, a single request causes the 429 Too Many Requests response. If I switch to a SOCKS5 proxy (just relaying the connection), requests work as expected. If I don't use a proxy at all, the same code also works as expected. I discovered this while trying to inspect the network traffic with my HTTPS proxy. My best guess is that finance.yahoo.com is trying to detect and prevent unusual usage even if it's a single request. The "Too Many Requests" is really just the generic response they use for possibly a set of detected behaviors. (I'm not really sure how they detect the local HTTPS proxy though other than possibly how the proxy negotiates the TLS connection differently than a browser or curl_cffi.) Anyway, just realize that "Too Many Requests" may not be the real underlying issue and maybe try various (i.e. from different IPs) direct, non-proxy, non-vpn connections to help diagnose network level issues. — Reply to this email directly, view it on GitHub <#2518 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ANZ245XWAQGYWJLVN5TK3RL3A5XIZAVCNFSM6AAAAAB6AMHIJ6VHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDSMRQGU2TENZUGM> . You are receiving this because you were mentioned.Message ID: ***@***.***>

[edwardtilley]

yf_tick = yf.Ticker("MSFT")
print(yf_tick.info)
Runs without error but the print result is: None

yf_tick = yf.Ticker("MSFT").info
Error - Too many requests

This was consistent with VPN USA IP and Japan IP, more and less trusted TOR servers on Proton VPN

[karanbosamia]

Same for me as @edwardtilley