Certifique-se de criar um [ambiente virtual](../virtual-environments.md), ativá-lo e então instalá-lo, por exemplo:

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

///

## Importe `Form` { #import-form }

Importe `Form` de `fastapi`:

{* ../../docs_src/request_forms/tutorial001_an_py310.py hl[3] *}

## Defina parâmetros de `Form` { #define-form-parameters }

Vous devez vous assurer de [mettre à niveau la version de FastAPI](../../deployment/versions.md#upgrading-the-fastapi-versions) vers au moins la 0.95.1 avant d’utiliser `Annotated`.

///

### Importer `Depends` { #import-depends }

{* ../../docs_src/dependencies/tutorial001_an_py310.py hl[3] *}

### Déclarer la dépendance, dans le « dependant » { #declare-the-dependency-in-the-dependant }

Utilisons maintenant les utilités fournies par **FastAPI** pour gérer cela.

### `OAuth2PasswordRequestForm` { #oauth2passwordrequestform }

Tout d'abord, importez `OAuth2PasswordRequestForm`, et utilisez-la en tant que dépendance avec `Depends` dans le chemin d'accès pour `/token` :

{* ../../docs_src/security/tutorial003_an_py310.py hl[4,78] *}

                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <dependency>
                <groupId>test</groupId>
                <artifactId>import</artifactId>
                <version>0.1-SNAPSHOT</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

# Parâmetros de Cabeçalho { #header-parameters }

Você pode definir parâmetros de Cabeçalho da mesma maneira que define paramêtros com `Query`, `Path` e `Cookie`.

## Importe `Header` { #import-header }

Primeiro importe `Header`:

{* ../../docs_src/header_params/tutorial001_an_py310.py hl[3] *}

## Declare parâmetros de `Header` { #declare-header-parameters }

Seit FastAPI 0.119.0 gibt es außerdem eine teilweise Unterstützung für Pydantic v1 innerhalb von Pydantic v2, um die Migration auf v2 zu erleichtern.

Sie könnten also Pydantic auf die neueste Version 2 aktualisieren und die Importe so ändern, dass das Untermodul `pydantic.v1` verwendet wird, und in vielen Fällen würde es einfach funktionieren.

{* ../../docs_src/pydantic_v1_in_v2/tutorial002_an_py310.py hl[2,5,15] *}

/// warning | Achtung

 * under the License.
 */
package org.apache.maven.extension.internal;

import java.util.Collections;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;

import org.codehaus.plexus.classworlds.realm.ClassRealm;

import static java.util.function.Function.identity;
import static java.util.stream.Collectors.collectingAndThen;
import static java.util.stream.Collectors.toMap;

/**

 */
package org.codelibs.fess.job;

import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;

import org.codelibs.fess.mylasta.direction.FessConfig;

Dolayısıyla şu bölüm:

```Python
    uvicorn.run(app, host="0.0.0.0", port=8000)
```

çalışır.

---

Ancak modülü (dosyayı) import ederseniz bu gerçekleşmez.

Yani örneğin `importer.py` adında başka bir dosyanız var ve içinde şunlar bulunuyorsa:

```Python
from myapp import app

# Some more code
```

bu durumda `myapp.py` içindeki otomatik oluşturulan `__name__` değişkeni `"__main__"` değerine sahip olmaz.

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

Isso é necessário, visto que os arquivos enviados são enviados como "dados de formulário".

///

## Importe `File` { #import-file }

Importe `File` e `UploadFile` de `fastapi`:

{* ../../docs_src/request_files/tutorial001_an_py310.py hl[3] *}

## Definir Parâmetros `File` { #define-file-parameters }