```

</div>

dann hat in Ihrer Datei die interne Variable `__name__`, die von Python automatisch erstellt wird, als Wert den String `"__main__"`.

Daher wird der Abschnitt:

```Python
    uvicorn.run(app, host="0.0.0.0", port=8000)
```

ausgeführt.

---

Dies wird nicht passieren, wenn Sie das Modul (die Datei) importieren.

Wenn Sie also eine weitere Datei `importer.py` mit folgendem Inhalt haben:

```Python

	Bucket          Bucket `json:"bucket"`
	Object          Object `json:"object"`
}

// Source represents client information who triggered the event.
type Source struct {
	Host      string `json:"host"`
	Port      string `json:"port"`
	UserAgent string `json:"userAgent"`
}

// Event represents event notification information defined in

        client_max_body_size 0;
        # To disable buffering
        proxy_buffering off;
        proxy_request_buffering off;

        location / {
            proxy_set_header Host $http_host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header X-Forwarded-Proto $scheme;

		case "ID":
			err = dc.ReadExactBytes((z.ID)[:])
			if err != nil {
				err = msgp.WrapError(err, "ID")
				return
			}
		case "Host":
			z.Host, err = dc.ReadString()
			if err != nil {
				err = msgp.WrapError(err, "Host")
				return
			}
		case "Time":
			z.Time, err = dc.ReadTime()
			if err != nil {
				err = msgp.WrapError(err, "Time")
				return
			}

			expectedErrCode:       ErrMissingSignHeadersTag,
		},
		// Test case - 3.
		// Test case with valid inputs.
		{
			inputSignElement:      "SignedHeaders=host;x-amz-content-sha256;x-amz-date",
			expectedSignedHeaders: []string{"host", "x-amz-content-sha256", "x-amz-date"},
			expectedErrCode:       ErrNone,
		},
	}

	for i, testCase := range testCases {

```

</div>

entonces la variable interna `__name__` en tu archivo, creada automáticamente por Python, tendrá como valor el string `"__main__"`.

Así que, la sección:

```Python
    uvicorn.run(app, host="0.0.0.0", port=8000)
```

se ejecutará.

---

Esto no ocurrirá si importas ese módulo (archivo).

Entonces, si tienes otro archivo `importer.py` con:

```Python
from myapp import app

	testCases := []struct {
		host        string
		port        int
		expectedErr error
	}{
		{"", port, fmt.Errorf("listen tcp :%v: bind: address already in use", port)},
		{"127.0.0.1", port, fmt.Errorf("listen tcp 127.0.0.1:%v: bind: address already in use", port)},
	}

	for _, testCase := range testCases {
		err := CheckPortAvailability(testCase.host, strconv.Itoa(testCase.port), TCPOptions{})
		switch {

        client_max_body_size 0;
        # To disable buffering
        proxy_buffering off;
        proxy_request_buffering off;

        location / {
            proxy_set_header Host $http_host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header X-Forwarded-Proto $scheme;

			},
			Object: event.Object{
				Key:       keyName,
				VersionID: args.Object.VersionID,
				Sequencer: uniqueID,
			},
		},
		Source: event.Source{
			Host:      args.Host,
			UserAgent: args.UserAgent,
		},
	}

	isRemovedEvent := args.EventName == event.ObjectRemovedDelete ||
		args.EventName == event.ObjectRemovedDeleteMarkerCreated ||

        client_max_body_size 0;
        # To disable buffering
        proxy_buffering off;
        proxy_request_buffering off;

        location / {
            proxy_set_header Host $http_host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header X-Forwarded-Proto $scheme;