</executions>
				<configuration>
					<failOnError>false</failOnError>
					<ignored>
						<difference>
							<!-- seems to be a clirr bug that it cannot handle the different inherited 
								return types -->
							<className>**</className>
							<differenceType>7006</differenceType>
							<method>*</method>
							<from>*</from>
							<to>*</to>
						</difference>
						<difference>

import os

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

/// tip

The second argument to [`os.getenv()`](https://docs.python.org/3.8/library/os.html#os.getenv) is the default value to return.

If not provided, it's `None` by default, here we provide `"World"` as the default value to use.

///

Then you could call that Python program:

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

<div class="termy">

你也可以使用常规的 `def` 函数（没有 `async`），并以同样的方式使用 `yield`。

FastAPI 会确保其正确运行，从而不阻塞事件循环。

由于此时函数不是 async，正确的返回类型应为 `Iterable[Item]`：

{* ../../docs_src/server_sent_events/tutorial001_py310.py ln[28:31] hl[29] *}

### 无返回类型 { #no-return-type }

你也可以省略返回类型。FastAPI 将使用 [`jsonable_encoder`](./encoder.md) 转换数据并发送。

{* ../../docs_src/server_sent_events/tutorial001_py310.py ln[34:37] hl[35] *}

## `ServerSentEvent` { #serversentevent }

        where:
        implicitMethod << ["values", "valueOf"]
    }

    private def paramStub(String type) {
        def stub = Stub(JApiParameter)
        stub.type >> type
        return stub
    }

    AbstractContextAwareViolationRule withContext(AbstractContextAwareViolationRule rule) {
        rule.context = new ViolationCheckContext() {

            @Override

        when(this.config.isDisableSpnegoIntegrity()).thenReturn(false);
        this.mechs = new ASN1ObjectIdentifier[] { new ASN1ObjectIdentifier("1.2.3.4") };
    }

    private SpnegoContext newContext() {
        return new SpnegoContext(this.config, this.mechContext, this.mechs);
    }

    @Test
    @DisplayName("getSupportedMechs returns SPNEGO OID")
    void testGetSupportedMechs() {
        SpnegoContext ctx = newContext();

イベントループをブロックしないよう、FastAPI が正しく実行されるように調整します。

この場合は関数が async ではないため、適切な戻り値の型は `Iterable[Item]` です:

{* ../../docs_src/server_sent_events/tutorial001_py310.py ln[28:31] hl[29] *}

### 戻り値の型なし { #no-return-type }

戻り値の型を省略することもできます。FastAPI は [`jsonable_encoder`](./encoder.md) を使ってデータを変換し、送信します。

{* ../../docs_src/server_sent_events/tutorial001_py310.py ln[34:37] hl[35] *}

## `ServerSentEvent` { #serversentevent }

    callbacks=callback_router1.routes,
    dependencies=[Depends(dep1)],
    response_class=ResponseLevel1,
)
async def path1_override(level1: str):
    return level1


@app.get("/default1")
async def path1_default(level1: str):
    return level1


@router2_override.get(
    "/override3",
    tags=["path3a", "path3b"],
    responses={
        403: {"description": "Client error level 3"},

# first directory with .mvn subdirectory is considered project base directory
find_maven_basedir() {

  if [ -z "$1" ]
  then
    echo "Path not specified to find_maven_basedir"
    return 1
  fi

  basedir="$1"
  wdir="$1"
  while [ "$wdir" != '/' ] ; do
    if [ -d "$wdir"/.mvn ] ; then
      basedir=$wdir
      break
    fi
    # workaround for JBEAP-8937 (on Solaris 10/Sparc)

        var first = true

        override fun createSocket(): Socket {
          if (first) {
            first = false
            firstConnectLatch.await()
          }
          return super.createSocket()
        }
      }

    client =
      client
        .newBuilder()
        .protocols(listOf(Protocol.H2_PRIOR_KNOWLEDGE))
        .socketFactory(socketFactory)

 * code shouldn't use these, they're necessary for clients migrating from OkHttp 3.x and this test
 * ensures the symbols remain available and with the expected parameter and return types.
 */
@Suppress(
  "DEPRECATION_ERROR",
  "UNUSED_VALUE",
  "UNUSED_VARIABLE",
  "VARIABLE_WITH_REDUNDANT_INITIALIZER",
)
class KotlinDeprecationErrorTest {
  private val factory = TestValueFactory()