/// tip | 豆知識

Pydantic には [`BeforeValidator`](https://docs.pydantic.dev/latest/concepts/validators/#field-before-validator) などもあります。 🤓

///

例えば、このカスタムバリデータは、<abbr title="International Standard Book Number - 国際標準図書番号">ISBN</abbr> の書籍番号なら item ID が `isbn-` で始まること、<abbr title="Internet Movie Database - インターネット・ムービー・データベース: 映画に関する情報を掲載する Web サイト">IMDB</abbr> の movie URL ID なら `imdb-` で始まることをチェックします:

Você, naturalmente, usaria as mesmas ideias que você leu em [Sobre versões do FastAPI](versions.md) para definir os intervalos de versões.

Por exemplo, seu `requirements.txt` poderia parecer com:

```
fastapi[standard]>=0.113.0,<0.114.0
pydantic>=2.7.0,<3.0.0
```

E você normalmente instalaria essas dependências de pacote com `pip`, por exemplo:

<div class="termy">

```console
$ pip install -r requirements.txt

    return future;
  }

  /**
   * Returns a default thread factory used to create new threads.
   *
   * <p>When running on AppEngine with access to <a
   * href="https://cloud.google.com/appengine/docs/standard/java/javadoc/">AppEngine legacy
   * APIs</a>, this method returns {@code ThreadManager.currentRequestThreadFactory()}. Otherwise,
   * it returns {@link Executors#defaultThreadFactory()}.
   *
   * @since 14.0
   */

		// Print a warning at the end of the startup banner so it is more noticeable
		if newObject.BackendInfo().StandardSCParity == 0 && !globalIsErasureSD {
			warnings = append(warnings, color.YellowBold("The standard parity is set to 0. This can lead to data loss."))
		}

		for _, warn := range warnings {
			logger.Warning(warn)
		}
	}()

	region := globalSite.Region()
	if region == "" {

	CSUBW	X10, X5					// ERROR "expected integer prime register in rd"
	CNOP	X10					// ERROR "expected no register in rs2"
	CEBREAK	X10					// ERROR "expected no register in rs2"

	//
	// "V" Standard Extension for Vector Operations, Version 1.0
	//
	VSETVLI		$32, E16, M1, TU, MU, X12	// ERROR "must be in range [0, 31] (5 bits)"
	VSETVLI		$-1, E32, M2, TA, MA, X12	// ERROR "must be in range [0, 31] (5 bits)"

你的應用通常會把「套件需求」放在某個檔案中。

這主要取決於你用什麼工具來安裝那些需求。

最常見的方式是準備一個 `requirements.txt` 檔案，逐行列出套件名稱與版本。

當然，你會用與在 [關於 FastAPI 版本](versions.md) 中讀到的相同概念，來設定版本範圍。

例如，你的 `requirements.txt` 可能像這樣：

```
fastapi[standard]>=0.113.0,<0.114.0
pydantic>=2.7.0,<3.0.0
```

接著你通常會用 `pip` 來安裝這些套件相依，例如：

<div class="termy">

```console
$ pip install -r requirements.txt
---> 100%

        }

        if (th.hasCapability(SmbConstants.CAP_NT_SMBS)) {
            /*
             * Trans2 Query Path Information Request / Response
             * Optimized to request both basic and standard info in fewer round trips when possible
             */
            Trans2QueryPathInformationResponse response = new Trans2QueryPathInformationResponse(th.getConfig(), infoLevel);

  -  Remove already deprecated options `resyncperiod` and `upstream` in the Kubernetes plugin.
  -  Includes Prometheus metrics name changes (to bring them in line with standard Prometheus metrics naming convention). They will be backward incompatible with existing reporting formulas that use the old metrics' names.
  -  The federation plugin (allows for v1 Kubernetes federation) has been removed.

가장 일반적인 방법은 패키지 이름과 버전을 한 줄에 하나씩 적어 둔 `requirements.txt` 파일을 사용하는 것입니다.

버전 범위를 설정할 때는 [FastAPI 버전들에 대하여](versions.md)에서 읽은 것과 같은 아이디어를 사용하면 됩니다.

예를 들어 `requirements.txt`는 다음과 같을 수 있습니다:

```
fastapi[standard]>=0.113.0,<0.114.0
pydantic>=2.7.0,<3.0.0
```

그리고 보통 `pip`로 패키지 의존성을 설치합니다. 예를 들면:

<div class="termy">

```console
$ pip install -r requirements.txt
---> 100%

 *
 * <h3>Other types of preconditions</h3>
 *
 * <p>Not every type of precondition failure is supported by these methods. Continue to throw
 * standard JDK exceptions such as {@link java.util.NoSuchElementException} or {@link
 * UnsupportedOperationException} in the situations they are intended for.
 *
 * <h3>Non-preconditions</h3>
 *