Python unable to verify the first certificate

Describes the cause and action for error messages.


Error Message(English):
unable to verify the first certificate

Resolution


関連リンク


Unable to verify the first certificate - Stack Overflow
https://stackoverflow.com/questions/35258492/unable-to-verify-the-first-certificate

"Verify return code: 21 (unable to verify the first certificate ...
https://stackoverflow.com/questions/43354403/verify-return-code-21-unable-to-verify-the-first-certif・・・

Socket.io unable to verify the first certificate
https://stackoverflow.com/questions/32248166/socket-io-unable-to-verify-the-first-certificate

Error: unable to verify the first certificate in nodejs
https://stackoverflow.com/questions/31673587/error-unable-to-verify-the-first-certificate-in-nodejs

Mongoose install - unable to verify the first certificate
https://stackoverflow.com/questions/32741699/mongoose-install-unable-to-verify-the-first-certificate・・・

Error: unable to verify the first certificate ・ Issue #8872 ・ npm/npm ...
https://github.com/npm/npm/issues/8872

プロキシ環境下でElectron開発環境の初期セットアップをするときに困った ...
https://qiita.com/ota-meshi/items/69ed2333ed2ba0768178

Error: unable to verify the first certificate when installing ...
https://forum.predix.io/questions/4002/error-unable-to-verify-the-first-certificate-when.html

Verify return code: 21 (unable to verify the first certificate ...
https://serverfault.com/questions/875297/verify-return-code-21-unable-to-verify-the-first-certificat・・・

tls - Does openssl refuse self signed certificates without basic ...
https://security.stackexchange.com/questions/143061/does-openssl-refuse-self-signed-certificates-wit・・・



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