---

You could also define it as a normal function instead of `async def`:

{* ../../docs_src/first_steps/tutorial003_py310.py hl[7] *}

/// note

If you don't know the difference, check the [Async: *"In a hurry?"*](../async.md#in-a-hurry).

///

### Step 5: return the content { #step-5-return-the-content }

{* ../../docs_src/first_steps/tutorial001_py310.py hl[8] *}

///

En Python, vous pouvez créer des gestionnaires de contexte en [créant une classe avec deux méthodes : `__enter__()` et `__exit__()`](https://docs.python.org/3/reference/datamodel.html#context-managers).

Vous pouvez également les utiliser dans des dépendances **FastAPI** avec `yield` en utilisant
des instructions `with` ou `async with` à l'intérieur de la fonction de dépendance :

- [MinIO Bucket Versioning Implementation](https://docs.min.io/community/minio-object-store/administration/object-management/object-versioning.html)

Aşağıda açıklandığı gibi `CMD` talimatının **her zaman** **exec form**'unu kullandığınızdan emin olun.

///

#### `CMD` Kullanımı - Exec Form { #use-cmd-exec-form }

[`CMD`](https://docs.docker.com/reference/dockerfile/#cmd) Docker talimatı iki formda yazılabilir:

✅ **Exec** form:

```Dockerfile
# ✅ Do this
CMD ["fastapi", "run", "app/main.py", "--port", "80"]
```

⛔️ **Shell** form:

affinity: {} ## Use this field to add environment variables relevant to MinIO server. These fields will be passed on to MinIO container(s) ## when Chart is deployed environment: ## Please refer for comprehensive list https://min.io/docs/minio/linux/reference/minio-server/minio-server.html ## MINIO_SUBNET_LICENSE: "License key obtained from https://subnet.min.io" ## MINIO_BROWSER: "off" ## The name of a secret in the same kubernetes namespace which contain secret values ## This can be useful for LDAP...

exitCommand: "" ## Use this field to add environment variables relevant to MinIO server. These fields will be passed on to MinIO container(s) ## when Chart is deployed environment: ## Please refer for comprehensive list https://min.io/docs/minio/linux/reference/minio-server/minio-server.html ## MINIO_SUBNET_LICENSE: "License key obtained from https://subnet.min.io" ## MINIO_BROWSER: "off" ## The name of a secret in the same kubernetes namespace which contain secret values ## This can be useful for LDAP...

struct_, union_, or enum_, as in C.struct_stat. The size of any C type
T is available as C.sizeof_T, as in C.sizeof_struct_stat. These
special prefixes means that there is no way to directly reference a C
identifier that starts with "struct_", "union_", "enum_", or
"sizeof_", such as a function named "struct_function".
A workaround is to use a "#define" in the preamble, as in

  }

  /**
   * Returns a function that accepts a supplier and returns the result of invoking {@link
   * Supplier#get} on that supplier.
   *
   * <p>Prefer to use the method reference {@code Supplier::get} instead, though note that it is not
   * serializable unless you explicitly make it {@link Serializable}, typically by writing {@code
   * (Function<Supplier<T>, T> & Serializable) Supplier::get}.
   *

        // The root artifact may, or may not be resolved so we need to check before we attempt to resolve.
        // This is often an artifact like a POM that is taken from disk and we already have hold of the
        // file reference. But this may be a Maven Plugin that we need to resolve from a remote repository
        // as well as its dependencies.

        if (request.isResolveRoot() /* && rootArtifact.getFile() == null */) {
            try {

If you are just starting with **FastAPI** you might want to skip it for now.

///

In Python, you can create Context Managers by [creating a class with two methods: `__enter__()` and `__exit__()`](https://docs.python.org/3/reference/datamodel.html#context-managers).

You can also use them inside of **FastAPI** dependencies with `yield` by using
`with` or `async with` statements inside of the dependency function: