通过从 `str` 继承，API 文档就能把值的类型定义为**字符串**，并且能正确渲染。

然后，创建包含固定值的类属性，这些固定值是可用的有效值：

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

/// info | 说明

Python 3.4 及之后版本支持<a href="https://docs.python.org/zh-cn/3/library/enum.html" class="external-link" target="_blank">枚举（即 enums）</a>。

///

/// tip | 提示

**AlexNet**、**ResNet**、**LeNet** 是机器学习<abbr title="技术上来说是深度学习模型架构">模型</abbr>。

///

### 声明*路径参数*

export MINIO_KMS_SECRET_KEY=my-minio-key:OSMM+vkKUTCvQs9YL/CVMIMt43HFhkUpqJxTmGl6rYw=
export MINIO_IDENTITY_LDAP_SERVER_ADDR="localhost:389"
export MINIO_IDENTITY_LDAP_SERVER_INSECURE="on"
export MINIO_IDENTITY_LDAP_LOOKUP_BIND_DN="cn=admin,dc=min,dc=io"
export MINIO_IDENTITY_LDAP_LOOKUP_BIND_PASSWORD="admin"
export MINIO_IDENTITY_LDAP_USER_DN_SEARCH_BASE_DN="dc=min,dc=io"
export MINIO_IDENTITY_LDAP_USER_DN_SEARCH_FILTER="(uid=%s)"

	}
	comp := s2.NewWriter(pw, opts...)
	indexCh := make(chan []byte, 1)
	go func() {
		defer xioutil.SafeClose(indexCh)
		cn, err := io.Copy(comp, r)
		if err != nil {
			comp.Close()
			pw.CloseWithError(err)
			return
		}
		if on > 0 && on != cn {
			// if client didn't sent all data
			// from the client verify here.
			comp.Close()
			pw.CloseWithError(IncompleteBody{})
			return

		</postConstruct>
		<postConstruct name="addConfigFile">
			<arg>"fess"</arg>
			<arg>"vi/stopwords.txt"</arg>
		</postConstruct>
		<postConstruct name="addConfigFile">
			<arg>"fess"</arg>
			<arg>"zh-cn/stopwords.txt"</arg>
		</postConstruct>
		<postConstruct name="addConfigFile">
			<arg>"fess"</arg>
			<arg>"zh-tw/stopwords.txt"</arg>
		</postConstruct>
		<postConstruct name="addConfigFile">

例如，你可以创建一个名为 `main.py` 的文件，其中包含以下内容：

```Python hl_lines="3"
import os

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

/// tip

第二个参数是 <a href="https://docs.python.org/zh-cn/3.8/library/os.html#os.getenv" class="external-link" target="_blank">`os.getenv()`</a> 的默认返回值。

如果没有提供，默认值为 `None`，这里我们提供 `"World"` 作为默认值。

///

然后你可以调用这个 Python 程序：

//// tab | Linux, macOS, Windows Bash

私たちは、あなたの言語でのプルリクエストを歓迎します。

### 翻訳

- [English](../../README.md)
- [简体中文 (Simplified Chinese)](../zh-CN/README.md)
- [Español (Spanish)](../es/README.md)
- [Português (Brazilian Portuguese)](../pt-BR/README.md)
- [Français (French)](../fr/README.md)
- [Deutsch (German)](../de/README.md)
- [한국어 (Korean)](../ko/README.md)

     * sv=sv<br>
     * ta=ta<br>
     * te=te<br>
     * th=th<br>
     * tl=tl<br>
     * tr=tr<br>
     * uk=uk<br>
     * ur=ur<br>
     * vi=vi<br>
     * zh-cn=zh-cn<br>
     * zh_CN=zh-cn<br>
     * zh-tw=zh-tw<br>
     * zh_TW=zh-tw<br>
     * zh=zh<br>
     *  */
    String QUERY_LANGUAGE_MAPPING = "query.language.mapping";

	//
	// Group mapping is not possible with standard X.509 certificates.
	if certificate.Subject.CommonName == "" {
		writeSTSErrorResponse(ctx, w, ErrSTSMissingParameter, errors.New("certificate subject CN cannot be empty"))
		return
	}

	expiry, err := globalIAMSys.STSTLSConfig.GetExpiryDuration(r.Form.Get(stsDurationSeconds))
	if err != nil {
		writeSTSErrorResponse(ctx, w, ErrSTSMissingParameter, err)
		return

        if (fessConfig.isLdapRoleSearchUserEnabled()) {
            roleSet.add(normalizePermissionName(systemHelper.getSearchRoleByUser(ldapUser.getName())));
        }

        // LDAP: cn=%s
        // AD: (&(objectClass=user)(sAMAccountName=%s))
        final String filter = String.format(accountFilter, escapeLDAPSearchFilter(ldapUser.getName()));
        if (logger.isDebugEnabled()) {

            "fr", "gu", "he", "hi", "hr", "hu", "id", "it", "ja", "ko", "lt", "lv", "mk", "ml", "nl", "no", "pa", "pl", "pt", "ro", "ru",
            "si", "sq", "sv", "ta", "te", "th", "tl", "tr", "uk", "ur", "vi", "zh-cn", "zh-tw" };

    /**
     * Constructor for AnalyzerSettings.
     * @param client The OpenSearch client.
     * @param settings The SuggestSettings instance.