## Dependências

Vemos que precisaremos de algumas dependências usadas em vários lugares da aplicação.

Então, as colocamos em seu próprio módulo de `dependencies` (`app/dependencies.py`).

Agora usaremos uma dependência simples para ler um cabeçalho `X-Token` personalizado:

//// tab | Python 3.9+

```Python hl_lines="3  6-8" title="app/dependencies.py"
{!> ../../docs_src/bigger_applications/app_an_py39/dependencies.py!}
```

## Changelog since v1.13.9

### Other notable changes

* Update golang/x/net dependency to bring in fixes for CVE-2019-9512, CVE-2019-9514 ([#81546](https://github.com/kubernetes/kubernetes/pull/81546), [@cblecker](https://github.com/cblecker))

```
pip install fastapi
```

Juga install `uvicorn` untuk menjalankan server"

```
pip install "uvicorn[standard]"
```

Dan demikian juga untuk pilihan dependensi yang hendak kamu gunakan.

///

## Pedoman Pengguna Lanjutan

Tersedia juga **Pedoman Pengguna Lanjutan** yang dapat kamu baca nanti setelah **Tutorial - Pedoman Pengguna** ini.

     */
    private static List<Path> paths() {
        return List.of(Path.of("src", "foo.java"), Path.of("src", "bar.java"));
    }

    /**
     * Converts paths from Unix style to platform-dependent style.
     *
     * @param expected the option value expected by the test
     * @return the expected value with separators of the host
     */
    private static String toPlatformSpecific(String expected) {

Lembre-se de criar um [ambiente virtual](../virtual-environments.md){.internal-link target=_blank}, ativá-lo e então instalar a dependência, por exemplo:

```console
$ pip install python-multipart
```

///

## Importe `Form`

Importe `Form` de `fastapi`:

{* ../../docs_src/request_forms/tutorial001.py hl[1] *}

Dependendo do seu caso de uso, você pode preferir usar uma biblioteca diferente, mas se você me perguntasse, eu provavelmente sugeriria que você experimentasse o **Strawberry**.

### Other (Cleanup or Flake)

- '`build/dependencies.yaml`: remove the dependency on Docker. With the dockershim removal, core Kubernetes no longer
  has to track the latest validated version of Docker.' ([#107607](https://github.com/kubernetes/kubernetes/pull/107607), [@neolit123](https://github.com/neolit123))

### Injeção de dependência

FastAPI inclui um sistema de <abbr title='também conhecido como "components", "resources", "services", "providers"'><strong>injeção de dependência</strong></abbr> extremamente fácil de usar, mas extremamente poderoso.

 *   <dt>{@link ListMultimap}
 *   <dd>An extension of {@link Multimap} which permits duplicate entries, supports random access of
 *       values for a particular key, and has <i>partially order-dependent equality</i> as defined
 *       by {@link ListMultimap#equals(Object)}. {@code ListMultimap} takes its name from the fact
 *       that the {@linkplain ListMultimap#get collection of values} associated with a given key

 *   <dt>{@link ListMultimap}
 *   <dd>An extension of {@link Multimap} which permits duplicate entries, supports random access of
 *       values for a particular key, and has <i>partially order-dependent equality</i> as defined
 *       by {@link ListMultimap#equals(Object)}. {@code ListMultimap} takes its name from the fact
 *       that the {@linkplain ListMultimap#get collection of values} associated with a given key