{* ../../docs_src/dependencies/tutorial008b_an_py39.py hl[18:22,31] *}

Se você quiser capturar exceções e criar uma resposta personalizada com base nisso, crie um [Manipulador de Exceções Customizado](../handling-errors.md#install-custom-exception-handlers){.internal-link target=_blank}.

## Dependências com `yield` e `except` { #dependencies-with-yield-and-except }

os.Hostname() will be used, in that order. ([#56812](https://github.com/kubernetes/kubernetes/pull/56812), [@dims](https://github.com/dims))

* Custom resources can be listed with a set of grouped resources (category) by specifying the categories in the [CustomResourceDefinition spec](https://kubernetes.io/docs/tasks/access-kubernetes-api/extend-api-custom-resource-definitions/#categories). Example: They can be used with `kubectl get important`, where `important` is a category. ([#59561](https://...

{* ../../docs_src/dependencies/tutorial008b_an_py39.py hl[18:22,31] *}

Si quieres capturar excepciones y crear un response personalizado en base a eso, crea un [Manejador de Excepciones Personalizado](../handling-errors.md#install-custom-exception-handlers){.internal-link target=_blank}.

## Dependencias con `yield` y `except` { #dependencies-with-yield-and-except }

     */
    public void setCacheDuration(final long cacheDuration) {
        this.cacheDuration = cacheDuration;
    }

    /**
     * DefaultNamespaceContext is a custom implementation of NamespaceContext.
     * It is used to resolve namespace URIs for XML elements and attributes
     * within the context of the provided XML document node.
     */

  @Override
  public Set<Entry<K, V>> entrySet() {
    // does not impact recency ordering
    Set<Entry<K, V>> es = entrySet;
    return (es != null) ? es : (entrySet = new EntrySet(this));
  }

  /**
   * Custom Entry class used by EntryIterator.next(), that relays setValue changes to the underlying
   * map.
   */
  private final class WriteThroughEntry implements Entry<K, V> {
    final K key;
    V value;

	RetryIntvl  time.Duration     `json:"retryInterval"`
	Proxy       string            `json:"string"`
	Transport   http.RoundTripper `json:"-"`
	HTTPTimeout time.Duration     `json:"httpTimeout"`

	// Custom logger
	LogOnceIf func(ctx context.Context, err error, id string, errKind ...any) `json:"-"`
}

// Target implements logger.Target and sends the json
// format of a log entry to the configured http endpoint.

	// Find
	var toys []Toy
	if DB.Model(&users).Association("Toys").Find(&toys); len(toys) != 6 {
		t.Errorf("toys count should be %v, but got %v", 6, len(toys))
	}

	// Find Tools (polymorphic with custom type and id)
	var tools []Tools
	DB.Model(&users).Association("Tools").Find(&tools)

	if len(tools) != 2 {
		t.Errorf("tools count should be %v, but got %v", 2, len(tools))
	}

	// Append

{* ../../docs_src/query_params_str_validations/tutorial014_an_py310.py hl[10] *}

## Benutzerdefinierte Validierung { #custom-validation }

Es kann Fälle geben, in denen Sie eine **benutzerdefinierte Validierung** durchführen müssen, die nicht mit den oben gezeigten Parametern durchgeführt werden kann.

But you can also provide other alternative `servers`, for example if you want *the same* docs UI to interact with both a staging and a production environment.

If you pass a custom list of `servers` and there's a `root_path` (because your API lives behind a proxy), **FastAPI** will insert a "server" with this `root_path` at the beginning of the list.

For example:

{* ../../docs_src/query_params_str_validations/tutorial014_an_py310.py hl[10] *}

## Validação personalizada { #custom-validation }

Podem existir casos em que você precise fazer alguma **validação personalizada** que não pode ser feita com os parâmetros mostrados acima.