```Python hl_lines="3"
import os

name = os.getenv("MY_NAME", "World")
print(f"Hello {name} from Python")
```

/// tip | Consejo

El segundo argumento de <a href="https://docs.python.org/3.8/library/os.html#os.getenv" class="external-link" target="_blank">`os.getenv()`</a> es el valor por defecto a retornar.

here. Ref: https://github.com/minio/minio/tree/master/docs/tls/kubernetes#2-create-kubernetes-secret certSecret: "" publicCrt: public.crt privateKey: private.key ## Trusted Certificates Settings for MinIO. Ref: https://docs.minio.io/docs/how-to-secure-access-to-minio-server-with-tls#install-certificates-from-third-party-cas ## Bundle multiple trusted certificates into one secret and pass that here. Ref: https://github.com/minio/minio/tree/master/docs/tls/kubernetes#2-create-kubernetes-secret ## When...

updateStrategy: RollingUpdate ## Pod priority settings ## ref: https://kubernetes.io/docs/concepts/configuration/pod-priority-preemption/ ## priorityClassName: "" ## Pod runtime class name ## ref https://kubernetes.io/docs/concepts/containers/runtime-class/ ## runtimeClassName: "" ## Set default rootUser, rootPassword ## AccessKey and secretKey is generated when not set ## Distributed MinIO ref: https://docs.minio.io/docs/distributed-minio-quickstart-guide ## rootUser: "" rootPassword: "" ## Use existing...

Follow below steps to enable and use AlertManager.

## Deploy and start AlertManager

            </offlineLink>
          </offlineLinks>
          <links>
            <link>https://docs.oracle.com/en/java/javase/25/docs/api/</link>
            <link>https://jspecify.dev/docs/api/</link>
          </links>
          <overview>../../overview.html</overview>
        </configuration>
      </plugin>
      <plugin>

{"item_id": 5, "q": "somequery"}
```

## Documentation interactive de l'API

Vous pouvez maintenant visiter <a href="http://192.168.99.100/docs" class="external-link" target="_blank">http://192.168.99.100/docs</a> ou <a href="http://127.0.0.1/docs" class="external-link" target="_blank">http://127.0.0.1/docs</a> (ou équivalent, en utilisant votre hôte Docker).

Но FastAPI также поддерживает использование <a href="https://docs.python.org/3/library/dataclasses.html" class="external-link" target="_blank">`dataclasses`</a> тем же способом:

{* ../../docs_src/dataclasses_/tutorial001_py310.py hl[1,6:11,18:19] *}

{* ../../docs_src/middleware/tutorial001_py39.py hl[8:9,11,14] *}

/// tip | Примечание

Имейте в виду, что можно добавлять свои собственные заголовки <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers" class="external-link" target="_blank">при помощи префикса 'X-'</a>.

# 使用数据类

FastAPI 基于 **Pydantic** 构建，前文已经介绍过如何使用 Pydantic 模型声明请求与响应。

但 FastAPI 还可以使用数据类（<a href="https://docs.python.org/3/library/dataclasses.html" class="external-link" target="_blank">`dataclasses`</a>）：

{* ../../docs_src/dataclasses_/tutorial001.py hl[1,7:12,19:20] *}

这还是借助于 **Pydantic** 及其<a href="https://pydantic-docs.helpmanual.io/usage/dataclasses/#use-of-stdlib-dataclasses-with-basemodel" class="external-link" target="_blank">内置的 `dataclasses`</a>。

//// tab | Pydantic v2

У версії Pydantic 2 використовується атрибут `model_config`, який приймає `dict`, як описано в <a href="https://docs.pydantic.dev/latest/api/config/" class="external-link" target="_blank">документації Pydantic: Конфігурація</a>.