`@lru_cache` is part of `functools` which is part of Python's standard library, you can read more about it in the <a href="https://docs.python.org/3/library/functools.html#functools.lru_cache" class="external-link" target="_blank">Python docs for `@lru_cache`</a>.

## Recap { #recap }

Content is a DOM node or a jQuery\n      if (this.config.html) {\n        if (!$(content).parent().is($element)) {\n          $element.empty().append(content)\n        }\n      } else {\n        $element.text($(content).text())\n      }\n\n      return\n    }\n\n    if (this.config.html) {\n      if (this.config.sanitize) {\n        content = sanitizeHtml(content, this.config.whiteList, this.config.sanitizeFn)\n      }\n\n      $element.html(content)\n    } else {\n      $element.text(content)\n ...

constraints.NotEmpty.message = {item}는 필수 항목입니다.
constraints.ParametersScriptAssert.message = 스크립트 표현식 "{script}"가 true가 아닙니다.
constraints.Range.message = {item}는 {min}에서 {max} 사이여야 합니다.
constraints.SafeHtml.message = {item}에 안전하지 않은 HTML 콘텐츠가 포함되어 있습니다.
constraints.ScriptAssert.message = 스크립트 표현식 "{script}"가 true가 아닙니다.
constraints.URL.message = {item}는 유효한 URL이 아닙니다.
constraints.Required.message = {item}가 필요합니다.
constraints.TypeInteger.message = {item}는 숫자여야 합니다.

例えば、以下のような`main.py`ファイルを用意します:

```Python hl_lines="3"
import os

name = os.getenv("MY_NAME", "World")
print(f"Hello {name} from Python")
```

/// tip

<a href="https://docs.python.org/3.8/library/os.html#os.getenv" class="external-link" target="_blank">`os.getenv()`</a> の第2引数は、デフォルトで返される値を指定します。

この引数を省略するとデフォルト値として`None`が返されますが、ここではデフォルト値として`"World"`を指定しています。

///

次に、このPythonプログラムを呼び出します。

そして、固定値のクラス属性を作ります。すると、その値が使用可能な値となります:

{* ../../docs_src/path_params/tutorial005.py hl[1,6,7,8,9] *}

/// info | 情報

<a href="https://docs.python.org/3/library/enum.html" class="external-link" target="_blank">Enumerations (もしくは、enums)はPython 3.4以降で利用できます</a>。

///

/// tip | 豆知識

pkg unicode, const Version = "6.2.0"
pkg unicode, const Version = "6.3.0"
pkg unicode, const Version = "7.0.0"
pkg unicode, const Version = "8.0.0"
pkg unicode, const Version = "9.0.0"
pkg html/template, method (*Template) Funcs(FuncMap) *Template
pkg html/template, type FuncMap map[string]interface{}
pkg syscall (freebsd-386), const SYS_FSTAT = 189
pkg syscall (freebsd-386), const SYS_FSTATAT = 493
pkg syscall (freebsd-386), const SYS_FSTATFS = 397

                          <Contact>******@****.***</Contact>
                          <SearchForm>http://localhost:8080/fess/</SearchForm>
                          <Url type="text/html" template="http://localhost:8080/fess/search?q={searchTerms}"/>
                          <InputEncoding>UTF-8</InputEncoding>
                          <OutputEncoding>UTF-8</OutputEncoding>

     * occurs an <code>SmbException</code> will be thrown. If the credentials are
     * valid, the method will return without throwing an exception. See the
     * last <a href="../../../faq.html">FAQ</a> question.
     * <p>
     * See also the <code>jcifs.smb1.smb1.client.logonShare</code> property.
     *
     * @param dc the domain controller to authenticate against

pullPolicy: IfNotPresent ## minio mode, i.e. standalone or distributed or gateway (nas) ## Distributed MinIO ref: https://docs.minio.io/docs/distributed-minio-quickstart-guide ## NAS Gateway MinIO ref: https://docs.min.io/docs/minio-gateway-for-nas.html mode: distributed ## NOTE: currently only "nas" gateway is supported. ## Additional labels to include with deployment or statefulset additionalLabels: [] ## Additional annotations to include with deployment or statefulset additionalAnnotation: [] ##...

pullPolicy: IfNotPresent ## minio mode, i.e. standalone or distributed or gateway (nas) ## Distributed MinIO ref: https://docs.minio.io/docs/distributed-minio-quickstart-guide ## NAS Gateway MinIO ref: https://docs.min.io/docs/minio-gateway-for-nas.html mode: distributed ## NOTE: currently only "nas" gateway is supported. ## Additional labels to include with deployment or statefulset additionalLabels: [] ## Additional annotations to include with deployment or statefulset additionalAnnotation: [] ##...