[Python] pip 설치 시 ssl 인증 오류 해결 방안

SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1129)'))

 

인증서 오류 시 --trusted-host 옵션을 사용한다.

 

$ pip install requests bs4 lxml openpyxl numpy
There was a problem confirming the ssl certificate

$ pip --trusted-host pypi.python.org --trusted-host files.pythonhosted.org --trusted-host pypi.org install requests bs4 lxml openpyxl numpy

 

 

Usage:   
  pip <command> [options]

Commands:
  install               Install packages.
  download          Download packages.
  uninstall            Uninstall packages.
  freeze               Output installed packages in requirements format.
  list                   List installed packages.
  show                Show information about installed packages.
  check               Verify installed packages have compatible dependencies.
  config              Manage local and global configuration.
  search              Search PyPI for packages.
  cache               Inspect and manage pip's wheel cache.
  index               Inspect information available from package indexes.
  wheel              Build wheels from your requirements.
  hash               Compute hashes of package archives.
  completion      A helper command used for command completion.
  debug            Show information useful for debugging.
  help               Show help for commands.

 

General Options:
  -h, --help        Show help.
  --isolated        Run pip in an isolated mode, ignoring environment variables and user configuration.
  -v, --verbose    Give more output. Option is additive, and can be used up to 3 times.     
  -V, --version    Show version and exit.

  --trusted-host <hostname>

   Mark this host or host:port pair as trusted, even though it does not have valid or any HTTPS.

  ... 중략 ...

 

end.