```Python hl_lines="17"
{!../../docs_src/path_params/tutorial005.py!}
```

#### 获取*枚举值*

使用 `model_name.value` 或 `your_enum_member.value` 获取实际的值（本例中为**字符串**）：

```Python hl_lines="20"
{!../../docs_src/path_params/tutorial005.py!}
```

/// tip | "提示"

使用 `ModelName.lenet.value` 也能获取值 `"lenet"`。

///

#### 返回*枚举元素*

即使嵌套在 JSON 请求体里（例如， `dict`），也可以从*路径操作*返回*枚举元素*。

# Größere Anwendungen – mehrere Dateien

Wenn Sie eine Anwendung oder eine Web-API erstellen, ist es selten der Fall, dass Sie alles in einer einzigen Datei unterbringen können.

**FastAPI** bietet ein praktisches Werkzeug zur Strukturierung Ihrer Anwendung bei gleichzeitiger Wahrung der Flexibilität.

/// info

Wenn Sie von Flask kommen, wäre dies das Äquivalent zu Flasks Blueprints.

///

## Eine Beispiel-Dateistruktur

{
    "properties": {
      "name": {
        "type": "keyword"
      },
      "value": {
        "type": "keyword"
      },
      "includedPaths": {
        "type": "keyword"
      },
      "excludedPaths": {
        "type": "keyword"
      },
      "permissions": {
        "type": "keyword"
      },
      "virtualHost": {
        "type": "keyword"
      },
      "sortOrder": {
        "type": "integer"
      },

    from docs_src.dependencies.tutorial008d import InternalError

    with pytest.raises(InternalError) as exc_info:
        client.get("/items/portal-gun")
    assert (
        exc_info.value.args[0] == "The portal gun is too dangerous to be owned by Rick"
    )


def test_internal_server_error():
    from docs_src.dependencies.tutorial008d import app

kind: WorkloadGroup
metadata:
  name: foo
  namespace: bar
spec:
  metadata:
    annotations:
      proxy.istio.io/config: |-
        proxyMetadata:
          # this should override the value from the global meshconfig
          PROXY_CONFIG_ANNOT_VALUE: bar
    labels: {}
  template:
    ports: {}
    serviceAccount: vm-serviceaccount
  probe:
    httpGet:

func predefine(defines flags.MultiFlag) map[string]*Macro {
	macros := make(map[string]*Macro)
	for _, name := range defines {
		value := "1"
		i := strings.IndexRune(name, '=')
		if i > 0 {
			name, value = name[:i], name[i+1:]
		}
		tokens := Tokenize(name)
		if len(tokens) != 1 || tokens[0].ScanToken != scanner.Ident {

    private Properties convertToProperties(final BuildResumptionData buildResumptionData) {
        Properties properties = new Properties();

        String value = String.join(PROPERTY_DELIMITER, buildResumptionData.getRemainingProjects());
        properties.setProperty(REMAINING_PROJECTS, value);

        return properties;
    }

    @Override
    public void applyResumptionData(MavenExecutionRequest request, MavenProject rootProject) {

<div class="wrapper">
    <jsp:include page="/WEB-INF/view/common/admin/header.jsp"></jsp:include>
    <jsp:include page="/WEB-INF/view/common/admin/sidebar.jsp">
        <jsp:param name="menuCategoryType" value="system"/>
        <jsp:param name="menuType" value="dict"/>
    </jsp:include>
    <div class="content-wrapper">
        <div class="content-header">
            <div class="container-fluid">
                <div class="row mb-2">

            "type" : "integer"
          },
          "updatedBy" : {
            "type" : "keyword"
          },
          "updatedTime" : {
            "type" : "long"
          },
          "value" : {
            "type" : "keyword"
          }
        }
      }
    },
    "settings" : {
      "index" : {
        "creation_date" : "1509021056731",
        "number_of_shards" : "5",

func (l *lockRESTServer) UnlockHandler(args *dsync.LockArgs) (*dsync.LockResp, *grid.RemoteErr) {
	resp := lockRPCUnlock.NewResponse()
	_, err := l.ll.Unlock(context.Background(), *args)
	// Ignore the Unlock() "reply" return value because if err == nil, "reply" is always true
	// Consequently, if err != nil, reply is always false
	return l.makeResp(resp, err)
}

// RLockHandler - Acquires an RLock.