例如，你可以建立一個名為 `main.py` 的檔案，其中包含以下內容：

```Python hl_lines="3"
import os

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

/// tip

第二個參數是 <a href="https://docs.python.org/zh-tw/3.8/library/os.html#os.getenv" class="external-link" target="_blank">`os.getenv()`</a> 的預設回傳值。

如果沒有提供，預設值為 `None`，這裡我們提供 `"World"` 作為預設值。

///

然後你可以呼叫這個 Python 程式：

{* ../../docs_src/custom_response/tutorial007_py39.py hl[2,14] *}

#### Verwendung von `StreamingResponse` mit dateiartigen Objekten { #using-streamingresponse-with-file-like-objects }

    try {
      getList().subList(1, 0);
      fail("subList(1, 0) should throw");
    } catch (IndexOutOfBoundsException expected) {
    } catch (IllegalArgumentException expected) {
      /*
       * The subList() docs claim that this should be an
       * IndexOutOfBoundsException, but many JDK implementations throw
       * IllegalArgumentException:
       * https://bugs.openjdk.org/browse/JDK-4506427
       */
    }
  }

{* ../../docs_src/extra_models/tutorial002.py hl[9,15,16,19,20,23,24] *}

## `Union`または`anyOf`

レスポンスを２つの型の`Union`として宣言することができます。

OpenAPIでは`anyOf`で定義されます。

そのためには、標準的なPythonの型ヒント<a href="https://docs.python.org/3/library/typing.html#typing.Union" class="external-link" target="_blank">`typing.Union`</a>を使用します:

{* ../../docs_src/extra_models/tutorial003.py hl[1,14,15,18,19,20,33] *}

## モデルのリスト

    try {
      getList().subList(1, 0);
      fail("subList(1, 0) should throw");
    } catch (IndexOutOfBoundsException expected) {
    } catch (IllegalArgumentException expected) {
      /*
       * The subList() docs claim that this should be an
       * IndexOutOfBoundsException, but many JDK implementations throw
       * IllegalArgumentException:
       * https://bugs.openjdk.org/browse/JDK-4506427
       */
    }
  }

### Added
_Nothing has changed._

### Changed
- k8s.io/kube-openapi: 743ec37 → 594e756

### Removed
_Nothing has changed._



# v1.16.9

[Documentation](https://docs.k8s.io)

## Downloads for v1.16.9

filename | sha512 hash
-------- | -----------

- Migrated `pkg/scheduler/framework/preemption` to use [contextual logging](https://k8s.io/docs/concepts/cluster-administration/system-logs/#contextual-logging). ([#116835](https://github.com/kubernetes/kubernetes/pull/116835), [@mengjiao-liu](https://github.com/mengjiao-liu))

            buf.append("Processing ");
            if (totalHits > 0) {
                buf.append(arList.size()).append('/').append(totalHits).append(" docs (Doc:{access ");
            } else {
                buf.append("no docs in indexing queue (Doc:{access ");
            }
            buf.append(systemHelper.getCurrentTimeAsLong() - execTime).append("ms");
            if (cleanupTime >= 0) {

		return NewPutObjReader(hr), &ObjectOptions{MaxParity: true}, nil
	}

	// Note: Local variables with names ek, oek, etc are named inline with
	// acronyms defined here -
	// https://github.com/minio/minio/blob/master/docs/security/README.md#acronyms

	// Encrypt json encoded tier configurations
	metadata := make(map[string]string)

{* ../../docs_src/custom_response/tutorial007_py39.py hl[2,14] *}

#### Usando `StreamingResponse` con objetos similares a archivos { #using-streamingresponse-with-file-like-objects }