{* ../../docs_src/query_params/tutorial005_py39.py hl[6:7] *}

Here the query parameter `needy` is a required query parameter of type `str`.

If you open in your browser a URL like:

```
http://127.0.0.1:8000/items/foo-item
```

...without adding the required parameter `needy`, you will see an error like:

```JSON
{
  "detail": [
    {

	if err != nil {
		in.Error("unquoting include file name: ", err)
	}
	in.expectNewline("#include")
	// Push tokenizer for file onto stack.
	fd, err := os.Open(name)
	if err != nil {
		for _, dir := range in.includes {
			fd, err = os.Open(filepath.Join(dir, name))
			if err == nil {
				break
			}
		}
		if err != nil {
			in.Error("#include:", err)
		}
	}

例えば、<a href="https://docs.python.org/3/tutorial/inputoutput.html#reading-and-writing-files" class="external-link" target="_blank">ファイルを読み込むには`with`を使用することができます</a>:

```Python
with open("./somefile.txt") as f:
    contents = f.read()
    print(contents)
```

その後の`open("./somefile.txt")`は「コンテキストマネージャ」と呼ばれるオブジェクトを作成します。

`with`ブロックが終了すると、例外があったとしてもファイルを確かに閉じます。

`yield`を依存関係を作成すると、**FastAPI** は内部的にそれをコンテキストマネージャに変換し、他の関連ツールと組み合わせます。

                // It is more critical than other attributes because append mode depends on it.
                // We do only really care if we open for writing and not shared for writing
                // otherwise there are no guarantees anyway, but this stuff is legacy anyways.
                final SmbComSeek seekReq = new SmbComSeek(config, 0);

Si tienes un <a href="https://docs.python.org/3/glossary.html#term-file-like-object" class="external-link" target="_blank">objeto similar a un archivo</a> (por ejemplo, el objeto devuelto por `open()`), puedes crear una función generadora para iterar sobre ese objeto similar a un archivo.

De esa manera, no tienes que leerlo todo primero en memoria, y puedes pasar esa función generadora al `StreamingResponse`, y devolverlo.

FastAPI Cloud — основной спонсор и источник финансирования для open-source проектов «FastAPI и друзья». ✨

#### Развертывание у других облачных провайдеров { #deploy-to-other-cloud-providers }

FastAPI — open-source и основан на стандартах. Вы можете развернуть приложения FastAPI у любого облачного провайдера по вашему выбору.

        return

    visible_text_extractor = VisibleTextExtractor()
    updated_lines = []
    in_code_block3 = False
    in_code_block4 = False
    permalinks = set()

    with path.open("r", encoding="utf-8") as f:
        lines = f.readlines()

    for line in lines:
        # Handle codeblocks start and end
        if not (in_code_block3 or in_code_block4):

		gr, err := objectAPI.GetObjectNInfo(ctx, bucket, zipPath, rs, nil, opts)
		if err != nil {
			writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
			return
		}
		defer gr.Close()
		rc, err = file.Open(gr)
		if err != nil {
			writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
			return
		}
	} else {
		rc = io.NopCloser(bytes.NewReader([]byte{}))
	}

	defer rc.Close()

                already_done_comment = comment
        logging.info(
            f"Already notified comment: {already_notified_comment}, already done comment: {already_done_comment}"
        )

        if pr.state == "open" and awaiting_label in label_strs:
            logging.info(
                f"This PR seems to be a language translation and awaiting reviews: #{pr.number}"
            )
            if already_notified_comment:

	if args.QueueDir != "" {
		queueDir := filepath.Join(args.QueueDir, storePrefix+"-webhook-"+id)
		queueStore = store.NewQueueStore[event.Event](queueDir, args.QueueLimit, event.StoreExtension)
		if err := queueStore.Open(); err != nil {
			cancel()
			return nil, fmt.Errorf("unable to initialize the queue store of Webhook `%s`: %w", id, err)
		}
	}

	target := &WebhookTarget{