Quando você instala o FastAPI com `pip install "fastapi[standard]"`, ele vêm com o grupo `standard` (padrão) de dependências opcionais:

Utilizado pelo Pydantic:

* <a href="https://github.com/JoshData/python-email-validator" target="_blank"><code>email-validator</code></a> - para validação de email.

Utilizado pelo Starlette:

{* ../../docs_src/response_model/tutorial002_py310.py hl[7,9] *}

/// info | Información

Para usar `EmailStr`, primero instala <a href="https://github.com/JoshData/python-email-validator" class="external-link" target="_blank">`email-validator`</a>.

Asegúrate de crear un [entorno virtual](../virtual-environments.md){.internal-link target=_blank}, activarlo, y luego instalarlo, por ejemplo:

Когда вы устанавливаете FastAPI с помощью `pip install "fastapi[standard]"`, он идёт с группой опциональных зависимостей `standard`:

Используется Pydantic:

* <a href="https://github.com/JoshData/python-email-validator" target="_blank"><code>email-validator</code></a> — для проверки адресов электронной почты.

Используется Starlette:

### `standard` Dependencies

When you install FastAPI with `pip install "fastapi[standard]"` it comes with the `standard` group of optional dependencies:

Used by Pydantic:

* <a href="https://github.com/JoshData/python-email-validator" target="_blank"><code>email-validator</code></a> - for email validation.

Used by Starlette:

## Opsiyonel Gereksinimler

Pydantic tarafında kullanılan:

* <a href="https://github.com/JoshData/python-email-validator" target="_blank"><code>email-validator</code></a> - email doğrulaması için.

詳細は<a href="https://fastapi.tiangolo.com/benchmarks/" class="internal-link" target="_blank">ベンチマーク</a>セクションをご覧ください。

## オプションの依存関係

Pydantic によって使用されるもの:

- <a href="https://github.com/JoshData/python-email-validator" target="_blank"><code>email-validator</code></a> - E メールの検証

Starlette によって使用されるもの:

- <a href="https://www.python-httpx.org" target="_blank"><code>httpx</code></a> - `TestClient`を使用するために必要です。

자세한 내용은 <a href="https://fastapi.tiangolo.com/benchmarks/" class="internal-link" target="_blank">벤치마크</a> 섹션을 보십시오.

## 선택가능한 의존성

Pydantic이 사용하는:

* <a href="https://github.com/JoshData/python-email-validator" target="_blank"><code>email-validator</code></a> - 이메일 유효성 검사.

Starlette이 사용하는:

* <a href="https://www.python-httpx.org" target="_blank"><code>HTTPX</code></a> - `TestClient`를 사용하려면 필요.

      events.add(responseHeaders)
      notifyAll()
      return false
    }

    @Synchronized override fun onData(
      streamId: Int,
      source: BufferedSource,
      byteCount: Int,
      last: Boolean,
    ): Boolean {
      events.add(AssertionError("onData"))
      notifyAll()
      return false
    }

    @Synchronized override fun onReset(
      streamId: Int,

Wenn Sie FastAPI mit `pip install "fastapi[standard]"` installieren, kommt es mit der `standard`-Gruppe optionaler Abhängigkeiten:

Verwendet von Pydantic:

* <a href="https://github.com/JoshData/python-email-validator" target="_blank"><code>email-validator</code></a> – für E-Mail-Validierung.

Verwendet von Starlette:

When you install FastAPI with `pip install "fastapi[standard]"` it comes with the `standard` group of optional dependencies:

Used by Pydantic:

* <a href="https://github.com/JoshData/python-email-validator" target="_blank"><code>email-validator</code></a> - for email validation.

Used by Starlette: