helpers.py 文件源码

def validate_key(key_path):
    """ Validate a key

        :param key_path: path to a key to use for authentication
        :type key_path: str

        :return: key object used for authentication
        :rtype: paramiko.RSAKey
    """

    key_path = os.path.expanduser(key_path)

    if not os.path.isfile(key_path):
        return False

    return paramiko.RSAKey.from_private_key_file(key_path)