### 激活虚拟环境

使用以下方法激活新环境：

//// tab | Linux, macOS

<div class="termy">

```console
$ source ./env/bin/activate
```

</div>

////

//// tab | Windows PowerShell

<div class="termy">

```console
$ .\env\Scripts\Activate.ps1
```

</div>

////

//// tab | Windows Bash

Birçok kullanım durumuna daha iyi uyduğu için, önceki alternatiflerin yerine seçiliyor.

Ben ve ekibim dahil, birçok geliştirici ve ekip projelerinde **FastAPI**'ya bağlı.

Tabi, geliştirilecek birçok özellik ve iyileştirme mevcut.

**FastAPI**'ın önünde harika bir gelecek var.

	StorageClass   string         `xml:"StorageClass"`
	set            bool
}

// MarshalXML is extended to leave out
// <NoncurrentVersionTransition></NoncurrentVersionTransition> tags
func (n NoncurrentVersionTransition) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
	if n.IsNull() {
		return nil
	}
	type noncurrentVersionTransitionWrapper NoncurrentVersionTransition

ID`baz`のitemのようにデフォルト値と同じ値を持つデータの場合:

```Python hl_lines="3 5 6"
{
    "name": "Baz",
    "description": None,
    "price": 50.2,
    "tax": 10.5,
    "tags": []
}
```

FastAPIは十分に賢いので（実際には、Pydanticが十分に賢い）`description`や`tax`、`tags`はデフォルト値と同じ値を持っているにもかかわらず、明示的に設定されていることを理解しています。（デフォルトから取得するのではなく）

そのため、それらはJSONレスポンスに含まれることになります。

/// tip | "豆知識"

デフォルト値は`None`だけでなく、なんでも良いことに注意してください。

**FastAPI**는 각 경우에 수행할 작업과 동일한 개체를 내부적으로 재사용하기에, 모든 백그라운드 작업이 함께 병합되고 나중에 백그라운드에서 실행됩니다.

//// tab | Python 3.6 and above

```Python hl_lines="13  15  22  25"
{!> ../../docs_src/background_tasks/tutorial002.py!}
```

////

//// tab | Python 3.10 and above

```Python hl_lines="11  13  20  23"
{!> ../../docs_src/background_tasks/tutorial002_py310.py!}
```

////

errors.storage_access_error=Storage access error: {0}
errors.storage_no_upload_file=Upload file is required.
errors.storage_directory_name_is_invalid=Directory name is invalid.
errors.storage_tags_update_failure=Failed to update tags for {0}

success.update_crawler_params=Updated parameters.
success.delete_doc_from_index=Started a process to delete the document from index.
success.crawling_info_delete_all=Deleted session data.

errors.storage_access_error=Storage access error: {0}
errors.storage_no_upload_file=Upload file is required.
errors.storage_directory_name_is_invalid=Directory name is invalid.
errors.storage_tags_update_failure=Failed to update tags for {0}

success.update_crawler_params=Updated parameters.
success.delete_doc_from_index=Started a process to delete the document from index.
success.crawling_info_delete_all=Deleted session data.

          #     of the value entered here.
          publish_results: true

      # Upload the results as artifacts (optional). Commenting out will disable uploads of run results in SARIF
      # format to the repository Actions tab.
      - name: "Upload artifact"
        uses: actions/upload-artifact@b4b15b8c7c6ac21ea08fcf65892d2ee8f75cf882 # v4.4.3
        with:
          name: SARIF file
          path: results.sarif
          retention-days: 5

// See e.g. https://man.openbsd.org/sysexits.3
// or `less /usr/includes/sysexits.h` if you're on Linux
//
// Picking the right range is tricky--there are a lot of reserved ones (see
// https://www.tldp.org/LDP/abs/html/exitcodes.html#EXITCODESREF) and then some
// used by convention (see sysexits).
//
// The intention here is to use 64-78 in a way that matches the attempt in

///

## Vários trabalhadores

Você pode iniciar vários trabalhadores com a opção de linha de comando `--workers`:

//// tab | `fastapi`

Se você usar o comando `fastapi`:

<div class="termy">

```console
$ <pre> <font color="#4E9A06">fastapi</font> run --workers 4 <u style="text-decoration-style:single">main.py</u>