{* ../../docs_src/first_steps/tutorial001.py *}

Salin file tersebut ke `main.py`.

Jalankan di server:

<div class="termy">

```console
$ <font color="#4E9A06">fastapi</font> dev <u style="text-decoration-style:single">main.py</u>
<font color="#3465A4">INFO    </font> Using path <font color="#3465A4">main.py</font>

```Python hl_lines="1  3  7" title="app/main.py"
{!../../docs_src/bigger_applications/app/main.py!}
```

### Importar el `APIRouter`

Ahora importamos los otros submódulos que tienen `APIRouter`s:

```Python hl_lines="4-5" title="app/main.py"
{!../../docs_src/bigger_applications/app/main.py!}
```

```Python hl_lines="1  3  7" title="app/main.py"
{!../../docs_src/bigger_applications/app/main.py!}
```

### Importe o `APIRouter`

Agora importamos os outros submódulos que possuem `APIRouter`s:

```Python hl_lines="4-5" title="app/main.py"
{!../../docs_src/bigger_applications/app/main.py!}
```

// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package main

import (
	"bytes"
	"encoding/json"
	"flag"
	"fmt"
	"io"
	"log"
	"net/http"
)

var port int

func init() {
	flag.IntVar(&port, "port", 8080, "Port to listen on")
}

// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package main

import (
	"context"
	"flag"
	"fmt"
	"log"
	"net/url"
	"time"

	"github.com/minio/minio-go/v7"
	cr "github.com/minio/minio-go/v7/pkg/credentials"
)

var (

{* ../../docs_src/first_steps/tutorial001.py *}

Copia eso en un archivo `main.py`.

Ejecuta el servidor en vivo:

<div class="termy">

```console
$ <font color="#4E9A06">fastapi</font> dev <u style="text-decoration-style:single">main.py</u>
<font color="#3465A4">INFO    </font> Using path <font color="#3465A4">main.py</font>

然後你可以呼叫這個 Python 程式：

//// tab | Linux, macOS, Windows Bash

<div class="termy">

```console
// 這裡我們還沒有設定環境變數
$ python main.py

// 因為我們沒有設定環境變數，所以我們得到的是預設值

Hello World from Python

// 但是如果我們事先建立過一個環境變數
$ export MY_NAME="Wade Wilson"

// 然後再次呼叫程式
$ python main.py

// 現在就可以讀取到環境變數了

Hello Wade Wilson from Python
```

</div>

////

//// tab | Windows PowerShell

.nav-link>.fab,.main-header.text-sm .nav-link>.fad,.main-header.text-sm .nav-link>.fal,.main-header.text-sm .nav-link>.far,.main-header.text-sm .nav-link>.fas,.main-header.text-sm .nav-link>.ion,.main-header.text-sm .nav-link>.svg-inline--fa,.text-sm .main-header .nav-link>.fa,.text-sm .main-header .nav-link>.fab,.text-sm .main-header .nav-link>.fad,.text-sm .main-header .nav-link>.fal,.text-sm .main-header .nav-link>.far,.text-sm .main-header .nav-link>.fas,.text-sm .main-header .nav-link>.ion,.text-sm...

    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;

    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';

    access_log  /var/log/nginx/access.log  main;
    sendfile        on;
    keepalive_timeout  65;

    # include /etc/nginx/conf.d/*.conf;

    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;

    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';

    access_log  /var/log/nginx/access.log  main;
    sendfile        on;
    keepalive_timeout  65;

    # include /etc/nginx/conf.d/*.conf;