### Import `HTTPException`

```Python hl_lines="1"
{!../../../docs_src/handling_errors/tutorial001.py!}
```

### Lance o `HTTPException` no seu código.

`HTTPException`, ao fundo, nada mais é do que a conjunção entre uma exceção comum do Python e informações adicionais relevantes para APIs.

E porque é uma exceção do Python, você não **retorna** (return) o `HTTPException`, você lança o (raise) no seu código.

		verificationImpacted = verificationImpacted || checkVerify(dr.Spec.GetTrafficPolicy().GetTls())
		sniImpacted = sniImpacted || checkSNI(dr.Spec.GetTrafficPolicy().GetTls())
		for _, pl := range dr.Spec.GetTrafficPolicy().GetPortLevelSettings() {
			verificationImpacted = verificationImpacted || checkVerify(pl.GetTls())
			sniImpacted = sniImpacted || checkSNI(pl.GetTls())
		}
		for _, ss := range dr.Spec.Subsets {

Et comme type, mettez `List`.

Les listes étant un type contenant des types internes, mettez ces derniers entre crochets (`[`, `]`) :

```Python hl_lines="4"
{!../../../docs_src/python_types/tutorial006.py!}
```

!!! tip "Astuce"
    Ces types internes entre crochets sont appelés des "paramètres de type".

    Ici, `str` est un paramètre de type passé à `List`.

### Documentation automatique

Documentation d'API interactive et interface web d'exploration. Comme le framework est basé sur OpenAPI, de nombreuses options sont disponibles. Deux d'entre-elles sont incluses par défaut.

    Function<Float, Boolean> c2 = Functions.compose(h, Functions.compose(g, f));

    // Might be nice (eventually) to have:
    //     assertEquals(c1, c2);

    // But for now, settle for this:
    assertEquals(c1.hashCode(), c2.hashCode());

    assertEquals(c1.apply(1.0f), c2.apply(1.0f));
    assertEquals(c1.apply(5.0f), c2.apply(5.0f));
  }

    Function<Float, Boolean> c2 = Functions.compose(h, Functions.compose(g, f));

    // Might be nice (eventually) to have:
    //     assertEquals(c1, c2);

    // But for now, settle for this:
    assertEquals(c1.hashCode(), c2.hashCode());

    assertEquals(c1.apply(1.0f), c2.apply(1.0f));
    assertEquals(c1.apply(5.0f), c2.apply(5.0f));
  }

constraints.Past.message        = {item} doit être dans le passé.
constraints.Pattern.message     = {item} doit valider l'expression "{regexp}".
constraints.Size.message        = La taille de {item} doit être entre {min} et {max}.

# ----------------------------------------------------------
#                                        Hibernate Validator
#                                        -------------------

RUN pip install fastapi uvicorn

EXPOSE 80

COPY ./app /app

CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "80"]
```

### Crie o código **FastAPI**

* Crie um diretório `app` e entre nele.
* Crie um arquivo `main.py` com:

```Python
from fastapi import FastAPI

app = FastAPI()


@app.get("/")
def read_root():
    return {"Hello": "World"}

En contrepartie l'API _des opérations de chemin_ de FastAPI pourrait ressembler à ceci :

```Python hl_lines="1"
@app.get("/some/url")
def read_url():
    return {"message": "Hello World"}
```

Notez les similitudes entre `requests.get(...)` et `@app.get(...)`.

!!! check "A inspiré **FastAPI** à"
_ Avoir une API simple et intuitive.

 * addressed by the new {@link java.util.stream.Stream} library. Read the method documentation below
 * for comparisons. These methods are not being deprecated, but we gently encourage you to migrate
 * to streams.
 *
 * @author Chris Povirk
 * @author Mike Bostock
 * @author Jared Levy
 * @since 2.0
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault