如果显示 `pip` 程序文件位于 `env/bin/pip` 则说明激活成功。 🎉

确保虚拟环境中的 pip 版本是最新的，以避免后续步骤出现错误：

<div class="termy">

```console
$ python -m pip install --upgrade pip

---> 100%
```

</div>

/// tip

每一次你在该环境下使用 `pip` 安装了新软件包时，请再次激活该环境。

这样可以确保你在使用由该软件包安装的终端程序时使用的是当前虚拟环境中的程序，而不是其他的可能是全局安装的程序。

///

### pip

如上所述激活环境后：

<div class="termy">

```console

/// tip

The "PATCH" is the last number, for example, in `0.2.3`, the PATCH version is `3`.

///

So, you should be able to pin to a version like:

```txt
fastapi>=0.45.0,<0.46.0
```

Breaking changes and new features are added in "MINOR" versions.

/// tip

### ✳ 1️⃣

📤 ✳ 1️⃣, ❔ 📶 🎏 ⚪️➡️ Oauth2️⃣, & 🌖 🏗, ⚫️ 🔌 🔗 🔧 🔛 ❔ 🗜 📻.

⚫️ 🚫 📶 🌟 ⚖️ ⚙️ 🛎.

Oauth2️⃣ 🚫 ✔ ❔ 🗜 📻, ⚫️ ⌛ 👆 ✔️ 👆 🈸 🍦 ⏮️ 🇺🇸🔍.

/// tip

📄 🔃 **🛠️** 👆 🔜 👀 ❔ ⚒ 🆙 🇺🇸🔍 🆓, ⚙️ Traefik & ➡️ 🗜.

///

## 👩‍💻 🔗

👩‍💻 🔗 ➕1️⃣ 🔧, 🧢 🔛 **Oauth2️⃣**.

⚫️ ↔ Oauth2️⃣ ✔ 👜 👈 📶 🌌 Oauth2️⃣, 🔄 ⚒ ⚫️ 🌅 🛠️.

{!../../docs_src/dependency_testing/tutorial001.py!}
```

/// tip | "提示"

**FastAPI** 应用中的任何位置都可以实现覆盖依赖项。

原依赖项可用于*路径操作函数*、*路径操作装饰器*（不需要返回值时）、`.include_router()` 调用等。

FastAPI 可以覆盖这些位置的依赖项。

///

然后，使用 `app.dependency_overrides` 把覆盖依赖项重置为空**字典**：

```Python
app.dependency_overrides = {}
```

/// tip | "提示"

如果只在某些测试时覆盖依赖项，您可以在测试开始时（在测试函数内）设置覆盖依赖项，并在结束时（在测试函数结尾）重置覆盖依赖项。

```

////

//// tab | Python 3.10+ non-Annotated

/// tip

Prefer to use the `Annotated` version if possible.

///

```Python
{!> ../../docs_src/app_testing/app_b_py310/main.py!}
```

////

//// tab | Python 3.8+ non-Annotated

/// tip

Prefer to use the `Annotated` version if possible.

///

```Python

# Gelişmiş Güvenlik

## Ek Özellikler

[Tutorial - User Guide: Security](../../tutorial/security/index.md){.internal-link target=_blank} sayfasında ele alınanların dışında güvenlikle ilgili bazı ek özellikler vardır.

/// tip | "İpucu"

Sonraki bölümler **mutlaka "gelişmiş" olmak zorunda değildir**.

Kullanım şeklinize bağlı olarak, çözümünüz bu bölümlerden birinde olabilir.

///

## Önce Öğreticiyi Okuyun

You can import it directly from `fastapi`:

```python
from fastapi import Request
```

/// tip

When you want to define dependencies that should be compatible with both HTTP and WebSockets, you can define a parameter that takes an `HTTPConnection` instead of a `Request` or a `WebSocket`.

///

Vous devriez le faire après avoir ajouté toutes vos *paramètres de chemin*.

```Python hl_lines="2  12-21  24"
{!../../docs_src/path_operation_advanced_configuration/tutorial002.py!}
```

/// tip | "Astuce"

Si vous appelez manuellement `app.openapi()`, vous devez mettre à jour les `operationId` avant.

///

/// warning | "Attention"

# Omgevingsvariabelen

/// tip

Als je al weet wat "omgevingsvariabelen" zijn en hoe je ze kunt gebruiken, kun je deze stap gerust overslaan.

///

Een omgevingsvariabele (ook bekend als "**env var**") is een variabele die **buiten** de Python-code leeft, in het **besturingssysteem** en die door je Python-code (of door andere programma's) kan worden gelezen.

# Environment Variables

/// tip

If you already know what "environment variables" are and how to use them, feel free to skip this.

///

An environment variable (also known as "**env var**") is a variable that lives **outside** of the Python code, in the **operating system**, and could be read by your Python code (or by other programs as well).