# arch keynotes
[toc]
## keyring backend
:::info
~/.local/share/pypoetry/venv/bin/python -m pip install keyrings.alt
:::

## CERTIFICATE_VERIFY_FAILED
使用youtube-dl會出現錯誤訊息
:::success
Unable to download webpage: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:992)>
:::
## 設定安全認證檔案
(medbc-py3.11) [josh@Z4 medBC]export SSL_CERT_FILE=/home/josh/.cache/pypoetry/virtualenvs/medbc-ZsDxw2Jb-py3.11/lib/python3.11/site-packages/certifi/cacert.pem
則執行就不會出現安全認證錯誤訊息
(medbc-py3.11) [josh@Z4 medBC]youtube-dl https://www.youtube.com/watch?v=DofqchCMV0M