SSLError('Failed to perform, curl: (77) error setting certificate verify locations: CAfile: ...\cacert.pem CApath: none. ...)

[BjoEnd]

I am getting following error when using yfinance download function:
['ELG.DE']: SSLError('Failed to perform, curl: (77) error setting certificate verify locations: CAfile: C:\Users\MyUserName\venv311\Lib\site-packages\certifi\cacert.pem CApath: none. See https://curl.se/libcurl/c/libcurl-errors.html first for more details.')

Not sure if python-certifi is the correct source to create this issue. I added a comment at yfinance already:
yfinance issue comment

I've tried all sorts of things but still haven't found a solution. I tested different versions of Python, certifi, yfinance and a lot more.

I am using:
Windows 11 Pro, Python 3.11.9 (venv), certifi==2025.4.26
(all pip package versions at yfinance issue comment)

If anyone has a suggestion or can help in any way, I'd would be truly grateful.

[sigmavirus24]

The curl error indicates this could be because the path is incorrect or inaccessible.

You can verify the path and permissions yourself but it does seem like a bad interaction between that library and curl_cffi.

You should find a minimal example of curl_cffi erroring like this before reporting it there, otherwise keep it on the finance library you're trying to use.