// Test printStackTrace doesn't throw exception
        DictionaryExpiredException exception = new DictionaryExpiredException();

        try {
            // Redirect to ByteArrayOutputStream to avoid console output
            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            java.io.PrintStream ps = new java.io.PrintStream(baos);
            exception.printStackTrace(ps);

설정을 쉽게 할 수 있는 유틸리티가 있으며, 이를 **FastAPI** 애플리케이션에서 직접 사용할 수 있습니다(Starlette 제공).

## 의존성 설치 { #install-dependencies }

[가상 환경](../virtual-environments.md)을 생성하고, 활성화한 후 `jinja2`를 설치해야 합니다:

<div class="termy">

```console
$ pip install jinja2

---> 100%
```

</div>

## `Jinja2Templates` 사용하기 { #using-jinja2templates }

* `Jinja2Templates`를 가져옵니다.
* 나중에 재사용할 수 있는 `templates` 객체를 생성합니다.

```bash
# 向宇宙打印问候
echo "Hello universe"
```

...以及一个控制台代码示例...

```console
$ <font color="#4E9A06">fastapi</font> run <u style="text-decoration-style:solid">main.py</u>
<span style="background-color:#009485"><font color="#D3D7CF"> FastAPI </font></span>  Starting server
        Searching for package file structure
```

...以及另一个控制台代码示例...

```console
// 创建目录 "code"
$ mkdir code
// 切换到该目录
$ cd code
```

	"github.com/minio/minio/internal/bucket/versioning"
	"github.com/minio/minio/internal/color"
	"github.com/minio/minio/internal/config/storageclass"
	"github.com/minio/minio/internal/logger"
	"github.com/minio/pkg/v3/console"
	"github.com/minio/pkg/v3/wildcard"
	"github.com/minio/pkg/v3/workers"
)

const (
	bgHealingUUID = "0000-0000-0000-0000"
)

// NewBgHealSequence creates a background healing sequence

檔案 `test_main.py` 會包含針對 `main.py` 的測試，現在可能像這樣：

{* ../../docs_src/async_tests/app_a_py310/test_main.py *}

## 執行 { #run-it }

如常執行測試：

<div class="termy">

```console
$ pytest

---> 100%
```

</div>

## 詳解 { #in-detail }

標記 `@pytest.mark.anyio` 告訴 pytest 這個測試函式應以非同步方式執行：

{* ../../docs_src/async_tests/app_a_py310/test_main.py hl[7] *}

/// tip

```

...y un ejemplo de código de consola...

```console
$ <font color="#4E9A06">fastapi</font> run <u style="text-decoration-style:solid">main.py</u>
<span style="background-color:#009485"><font color="#D3D7CF"> FastAPI </font></span>  Starting server
        Searching for package file structure
```

...y otro ejemplo de código de consola...

```console
// Crea un directorio "Code"
$ mkdir code

- Reduced server startup time. For IAM encryption with the root credentials, MinIO had
   to use a memory-hard function (Argon2) that (on purpose) consumes a lot of memory and CPU.
   The new KMS-based approach can use a key derivation function that is orders of magnitudes
   cheaper w.r.t. memory and CPU.

import java.util.List;
import java.util.ListIterator;
import java.util.Map;
import java.util.Map.Entry;
import java.util.NoSuchElementException;
import java.util.Set;
import java.util.function.Consumer;
import org.jspecify.annotations.Nullable;

/**
 * An implementation of {@code ListMultimap} that supports deterministic iteration order for both

수동으로 설치하려면, [가상 환경](../../virtual-environments.md)을 만들고 활성화한 다음, 아래로 설치하세요:

```console
$ pip install python-multipart
```

이는 **OAuth2**가 `username`과 `password`를 보내기 위해 "form data"를 사용하기 때문입니다.

///

다음으로 예제를 실행하세요:

<div class="termy">

```console
$ fastapi dev

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)

///

## 複数ワーカー { #multiple-workers }

`--workers` コマンドラインオプションで複数のワーカーを起動できます。

//// tab | `fastapi`

`fastapi` コマンドを使う場合：

<div class="termy">

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

  <span style="background-color:#009485"><font color="#D3D7CF"> FastAPI </font></span>  Starting production server 🚀