# Exceptions - `HTTPException` and `WebSocketException`

These are the exceptions that you can raise to show errors to the client.

When you raise an exception, as would happen with normal Python, the rest of the execution is aborted. This way you can raise these exceptions from anywhere in the code to abort a request and show the error to the client.

You can use:

* `HTTPException`
* `WebSocketException`

```Python hl_lines="2-3  23"
{!../../docs_src/wsgi/tutorial001.py!}
```

## Check it

Now, every request under the path `/v1/` will be handled by the Flask application.

And the rest will be handled by **FastAPI**.

If you run it and go to <a href="http://localhost:8000/v1/" class="external-link" target="_blank">http://localhost:8000/v1/</a> you will see the response from Flask:

```txt

          script: |
            const output = `
            Some bad merge is found:
            \`\`\`
            ${{ env.OUTPUT }}
            \`\`\`
            `;
            github.rest.issues.createComment({
              issue_number: context.issue.number,
              owner: context.repo.owner,
              repo: context.repo.repo,
              body: output

Esto difiere en las fases de **desarrollo**, donde estás constantemente cambiando el código, rompiéndolo y arreglándolo, deteniendo y reiniciando el servidor de desarrollo, etc.

## Estrategias de despliegue

        assertEquals(UserAgentType.SAFARI, userAgentHelper.getUserAgentType());
    }

    public void test_getUserAgentType_Opera() {
        getMockRequest().addHeader("user-agent", "Opera/9.80 (X11; U; Linux x86_64) Presto/2.9.181 Version/12.00");
        assertEquals(UserAgentType.OPERA, userAgentHelper.getUserAgentType());
    }

    public void test_getUserAgentType_OTHER() {
        getMockRequest().addHeader("user-agent", "Dummy");

* <a href="https://alternativeto.net/software/fastapi/" class="external-link" target="_blank">Votez pour **FastAPI** sur AlternativeTo</a>.
* <a href="https://github.com/marmelab/awesome-rest/pull/93" class="external-link" target="_blank">Votez pour **FastAPI** sur awesome-rest</a>.

## Aider les autres à résoudre les problèmes dans GitHub

                  @Override
                  protected List<String> create(String[] elements) {
                    String[] rest = new String[elements.length - 1];
                    arraycopy(elements, 1, rest, 0, elements.length - 1);
                    return Lists.asList(elements[0], rest);
                  }
                })
            .named("Lists.asList, 2 parameter")
            .withFeatures(

                  @Override
                  protected List<String> create(String[] elements) {
                    String[] rest = new String[elements.length - 1];
                    arraycopy(elements, 1, rest, 0, elements.length - 1);
                    return Lists.asList(elements[0], rest);
                  }
                })
            .named("Lists.asList, 2 parameter")
            .withFeatures(

### <a href="https://www.django-rest-framework.org/" class="external-link" target="_blank">Django REST Framework</a>

Django REST framework a été conçu comme une boîte à outils flexible permettant de construire des API Web à partir de Django, afin d'améliorer ses capacités en matière d'API.

 *   <li>{@link MoreObjects}
 *   <li>{@link Preconditions}
 *   <li>{@link StandardSystemProperty}
 *   <li>{@link Stopwatch}
 *   <li>{@link Throwables}
 *   <li>{@link Verify}
 * </ul>
 *
 * <h3>The rest</h3>
 *
 * This package also contains some classes with niche use cases (e.g., {@link Utf8} and {@link
 * Defaults}), as well as a number of classes that have been superseded by additions to the JDK.
 */
@CheckReturnValue