下面是一个示例代码，用于更新AWS cognito用户池的属性：

import boto3

# 配置AWS身份验证
client = boto3.client('cognito-idp',
    region_name='us-west-2',
    aws_access_key_id='YOUR_AWS_ACCESS_KEY_ID',
    aws_secret_access_key='YOUR_AWS_SECRET_ACCESS_KEY',
)

# 更新用户池属性
response = client.update_user_pool(
    UserPoolId='USER_POOL_ID',
    AdminCreateUserConfig={
        'AllowAdminCreateUserOnly': True|False,
        'UnusedAccountValidityDays': 123,
        'InviteMessageTemplate': {
            'SMSMessage': 'string',
            'EmailSubject': 'string',
            'EmailMessage': 'string'
        }
    },
    Policies={
        'PasswordPolicy': {
            'MinimumLength': 123,
            'RequireUppercase': True|False,
            'RequireLowercase': True|False,
            'RequireNumbers': True|False,
            'RequireSymbols': True|False,
            'TemporaryPasswordValidityDays': 123
        }
    },
    EmailVerificationMessage='string',
    EmailVerificationSubject='string',
    VerificationMessageTemplate={
        'SMSMessage': 'string',
        'EmailSubject': 'string',
        'EmailMessage': 'string'
    },
    SmsVerificationMessage='string',
    SmsAuthenticationMessage='string',
    MfaConfiguration='OFF'|'ON'|'OPTIONAL',
    DeviceConfiguration={
        'ChallengeRequiredOnNewDevice': True|False,
        'DeviceOnlyRememberedOnUserPrompt': True|False
    }
)

# 输出更新后的用户池信息
print(response)

以上代码假定您已经提供了AWS凭据，并且有对应的权限。请根据您的需求进行调整，特别是UserPoolId和其他更新属性的值。