{* ../../docs_src/query_params_str_validations/tutorial003_an_py310.py hl[10] *}

## Agregar expresiones regulares { #add-regular-expressions }

Puedes definir una <dfn title="Una expresión regular, regex o regexp es una secuencia de caracteres que define un patrón de búsqueda para strings.">expresión regular</dfn> `pattern` que el parámetro debe coincidir:

{* ../../docs_src/query_params_str_validations/tutorial004_an_py310.py hl[11] *}

{* ../../docs_src/query_params_str_validations/tutorial003_an_py310.py hl[10] *}

## Adicione expressões regulares { #add-regular-expressions }

Você pode definir um `pattern` de <dfn title="Uma expressão regular (regex ou regexp) é uma sequência de caracteres que define um padrão de busca para strings.">expressão regular</dfn> que o parâmetro deve corresponder:

{* ../../docs_src/query_params_str_validations/tutorial004_an_py310.py hl[11] *}

Assim, você pode fazer a atualização e garantir que tudo continua funcionando como esperado.

## `bump-pydantic` { #bump-pydantic }

Em muitos casos, quando você usa modelos Pydantic regulares sem personalizações, será possível automatizar a maior parte do processo de migração do Pydantic v1 para o Pydantic v2.

Você pode usar [`bump-pydantic`](https://github.com/pydantic/bump-pydantic) da própria equipe do Pydantic.

{* ../../docs_src/query_params_str_validations/tutorial003_an_py310.py hl[10] *}

## Reguläre Ausdrücke hinzufügen { #add-regular-expressions }

Sie können einen <dfn title="Ein regulärer Ausdruck, regex oder regexp genannt, ist eine Sequenz von Zeichen, die ein Suchmuster für Strings definiert.">regulären Ausdruck</dfn> `pattern` definieren, mit dem der Parameter übereinstimmen muss:

Vous pouvez également ajouter un paramètre `min_length` :

{* ../../docs_src/query_params_str_validations/tutorial003_an_py310.py hl[10] *}

## Ajouter des expressions régulières { #add-regular-expressions }

## Add regular expressions { #add-regular-expressions }

You can define a <dfn title="A regular expression, regex or regexp is a sequence of characters that define a search pattern for strings.">regular expression</dfn> `pattern` that the parameter should match:

{* ../../docs_src/query_params_str_validations/tutorial004_an_py310.py hl[11] *}

     * Resolver is and will remain agnostic of consumer project use cases.
     */
    public static final String CONSTITUTES_BUILD_PATH = "constitutesBuildPath";

    /**
     * When an artifact is both a regular dependency and a transitive dependency
     * of a processor, this property records the derived processor type ID.
     *
     * @since 4.0.0
     */
    public static final String PROCESSOR_TYPE = "maven.processor.type";

## Regular expression ekleyin { #add-regular-expressions }

Parametrenin eşleşmesi gereken bir `pattern` <dfn title="String'ler için arama deseni tanımlayan karakter dizisi">düzenli ifade</dfn> tanımlayabilirsiniz:

{* ../../docs_src/query_params_str_validations/tutorial004_an_py310.py hl[11] *}

Auf diese Weise können Sie das Update durchführen und sicherstellen, dass weiterhin alles wie erwartet funktioniert.

## `bump-pydantic` { #bump-pydantic }

In vielen Fällen, wenn Sie reguläre Pydantic-Modelle ohne Anpassungen verwenden, können Sie den Großteil des Prozesses der Migration von Pydantic v1 auf Pydantic v2 automatisieren.

**FastAPI** is already being used in production in many applications and systems. And the test coverage is kept at 100%. But its development is still moving quickly.

New features are added frequently, bugs are fixed regularly, and the code is still continuously improving.