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# 使用 Python AWS SDK 获取一批 Secrets Manager 密钥值
<a name="retrieving-secrets-python-batch"></a>

以下代码示例演示了如何获取批量 Secrets Manager 密钥值。

**所需权限：**
+ `secretsmanager:BatchGetSecretValue` 
+ 对要检索的每个密钥拥有 `secretsmanager:GetSecretValue` 权限。
+ 如果您使用筛选器，则还必须拥有 `secretsmanager:ListSecrets`。

有关权限策略的示例，请参阅 [示例：批量检索一组密钥值的权限](auth-and-access_iam-policies.md#auth-and-access_examples_batch)。

**重要**  
如果您的 VPCE 策略拒绝在您正在检索的群组中检索单个秘密的权限，则 `BatchGetSecretValue` 不会返回任何秘密值，并且会返回错误。

```
class BatchGetSecretsWrapper:
    def __init__(self, secretsmanager_client):
        self.client = secretsmanager_client


    def batch_get_secrets(self, filter_name):
        """
        Retrieve multiple secrets from AWS Secrets Manager using the batch_get_secret_value API.
        This function assumes the stack mentioned in the source code README has been successfully deployed.
        This stack includes 7 secrets, all of which have names beginning with "mySecret".

        :param filter_name: The full or partial name of secrets to be fetched.
        :type filter_name: str
        """
        try:
            secrets = []
            response = self.client.batch_get_secret_value(
                Filters=[{"Key": "name", "Values": [f"{filter_name}"]}]
            )
            for secret in response["SecretValues"]:
                secrets.append(json.loads(secret["SecretString"]))
            if secrets:
                logger.info("Secrets retrieved successfully.")
            else:
                logger.info("Zero secrets returned without error.")
            return secrets
        except self.client.exceptions.ResourceNotFoundException:
            msg = f"One or more requested secrets were not found with filter: {filter_name}"
            logger.info(msg)
            return msg
        except Exception as e:
            logger.error(f"An unknown error occurred:\n{str(e)}.")
            raise
```