handlers.py 文件源码

def check_openssl_supports_tls_version_1_2(**kwargs):
    import ssl
    try:
        openssl_version_tuple = ssl.OPENSSL_VERSION_INFO
        if openssl_version_tuple[0] < 1 or openssl_version_tuple[2] < 1:
            warnings.warn(
                'Currently installed openssl version: %s does not '
                'support TLS 1.2, which is required for use of iot-data. '
                'Please use python installed with openssl version 1.0.1 or '
                'higher.' % (ssl.OPENSSL_VERSION),
                UnsupportedTLSVersionWarning
            )
    # We cannot check the openssl version on python2.6, so we should just
    # pass on this conveniency check.
    except AttributeError:
        pass