<div class="termy">

```console
$ python -m venv env
```

</div>

Isso criará o diretório `./env/` com os binários Python e então você será capaz de instalar pacotes nesse ambiente isolado.

### Ativar o ambiente

Ative o novo ambiente com:

=== "Linux, macOS"

    <div class="termy">

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

    </div>

<div class="termy">

```console
$ python myapp.py
```

</div>

но не вызывался, когда другой файл импортирует это, например:

```Python
from myapp import app
```

#### Больше деталей

Давайте назовём ваш файл `myapp.py`.

Если вы запустите его с помощью:

<div class="termy">

```console
$ python myapp.py
```

</div>

<div class="termy">

```console
$ python myapp.py
```

</div>

mais qui n'est pas appelé lorsqu'un autre fichier l'importe, comme dans :

```Python
from myapp import app
```

#### Pour davantage de détails

Imaginons que votre fichier s'appelle `myapp.py`.

Si vous l'exécutez avec :

<div class="termy">

```console
$ python myapp.py
```

</div>

* Construa sua imagem FastAPI:

<div class="termy">

```console
$ docker build -t myimage .

---> 100%
```

</div>

### Inicie o container Docker

* Rode um container baseado em sua imagem:

<div class="termy">

```console
$ docker run -d --name mycontainer -p 80:80 myimage
```

</div>

👑 🎯 `__name__ == "__main__"` ✔️ 📟 👈 🛠️ 🕐❔ 👆 📁 🤙 ⏮️:

<div class="termy">

```console
$ python myapp.py
```

</div>

✋️ 🚫 🤙 🕐❔ ➕1️⃣ 📁 🗄 ⚫️, 💖:

```Python
from myapp import app
```

#### 🌅 ℹ

➡️ 💬 👆 📁 🌟 `myapp.py`.

🚥 👆 🏃 ⚫️ ⏮️:

<div class="termy">

```console
$ python myapp.py
```

</div>

⚫️ 🏗 👷 🔮 🔗.

👆 💪 👟 🔙 & 👀 ⚫️❔ ⚫️❔ 👆 💪.

## 🏃 📟

🌐 📟 🍫 💪 📁 & ⚙️ 🔗 (👫 🤙 💯 🐍 📁).

🏃 🙆 🖼, 📁 📟 📁 `main.py`, & ▶️ `uvicorn` ⏮️:

<div class="termy">

```console
$ uvicorn main:app --reload

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
<span style="color: green;">INFO</span>:     Started reloader process [28720]

## `WebSockets` installieren

Zuerst müssen Sie `WebSockets` installieren:

<div class="termy">

```console
$ pip install websockets

---> 100%
```

</div>

## WebSockets-Client

### In Produktion

=== "💾, 🇸🇻, 🚪 🎉"

    <div class="termy">

    ```console
    // You could create an env var MY_NAME with
    $ export MY_NAME="Wade Wilson"

    // Then you could use it with other programs, like
    $ echo "Hello $MY_NAME"

    Hello Wade Wilson
    ```

    </div>

=== "🚪 📋"

    <div class="termy">

    ```console
    // Create an env var MY_NAME
    $ $Env:MY_NAME = "Wade Wilson"

Starten Sie nun Traefik:

<div class="termy">

```console
$ ./traefik --configFile=traefik.toml

INFO[0000] Configuration loaded from file: /home/user/awesomeapi/traefik.toml
```

</div>

Und jetzt starten Sie Ihre Anwendung mit Uvicorn, indem Sie die Option `--root-path` verwenden:

<div class="termy">

```console
$ uvicorn main:app --root-path /api/v1

# 第一步

最简单的 FastAPI 文件可能像下面这样：

```Python
{!../../../docs_src/first_steps/tutorial001.py!}
```

将其复制到 `main.py` 文件中。

运行实时服务器：

<div class="termy">

```console
$ uvicorn main:app --reload

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
<span style="color: green;">INFO</span>:     Started reloader process [28720]