python pip이 ssl 인증서 오류(사내 보안)로 안될 때

 

pip install 패키지명 --trusted-host pypi.org --trusted-host files.pythonhosted.org --trusted-host pypi.python.org

 

에러는 이렇게 뜨더라고
  WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self-signed certificate in certificate chain (_ssl.c:1000)'))': /packages/22/a5/a0b255295406ed54269814bc93723cfd1a0da63fb9aaf99e1364f07923e5/pandas-2.2.2-cp312-cp312-win_amd64.whl.metadata
  WARNING: Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self-signed certificate in certificate chain (_ssl.c:1000)'))': /packages/22/a5/a0b255295406ed54269814bc93723cfd1a0da63fb9aaf99e1364f07923e5/pandas-2.2.2-cp312-cp312-win_amd64.whl.metadata
  WARNING: Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self-signed certificate in certificate chain (_ssl.c:1000)'))': /packages/22/a5/a0b255295406ed54269814bc93723cfd1a0da63fb9aaf99e1364f07923e5/pandas-2.2.2-cp312-cp312-win_amd64.whl.metadata
  WARNING: Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self-signed certificate in certificate chain (_ssl.c:1000)'))': /packages/22/a5/a0b255295406ed54269814bc93723cfd1a0da63fb9aaf99e1364f07923e5/pandas-2.2.2-cp312-cp312-win_amd64.whl.metadata
  WARNING: Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self-signed certificate in certificate chain (_ssl.c:1000)'))': /packages/22/a5/a0b255295406ed54269814bc93723cfd1a0da63fb9aaf99e1364f07923e5/pandas-2.2.2-cp312-cp312-win_amd64.whl.metadata
ERROR: Could not install packages due to an OSError: HTTPSConnectionPool(host='files.pythonhosted.org', port=443): Max retries exceeded with url: /packages/22/a5/a0b255295406ed54269814bc93723cfd1a0da63fb9aaf99e1364f07923e5/pandas-2.2.2-cp312-cp312-win_amd64.whl.metadata (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self-signed certificate in certificate chain (_ssl.c:1000)')))