<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>

⤴️ 🔗 🔢 `__name__` 👆 📁, ✍ 🔁 🐍, 🔜 ✔️ 💲 🎻 `"__main__"`.

<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>

kind: Gateway
metadata:
  name: httpbin8001-gateway
spec:
  selector:
    myapp: ingressgateway-8001
  servers:
  - port:
      number: 8001
      name: http2
      protocol: HTTP
    hosts:
    - "*"
---
apiVersion: networking.istio.io/v1alpha3
kind: Gateway
metadata:
  name: httpbin8002-gateway
spec:
  selector:
    myapp: ingressgateway-8001
  servers:
  - port:
      number: 8002

apiVersion: networking.istio.io/v1alpha3
kind: Gateway
metadata:
  name: httpbin-gateway
spec:
  selector:
    myapp: private-ingressgateway
  servers:
  - port:
      number: 8003
      name: http2
      protocol: HTTP
    hosts:
    - "*"
---
apiVersion: v1
kind: Pod
metadata:
  labels:
    myapp: private-ingressgateway
  name: my-ingressgateway-1234
spec:
  containers:
    - args:

    }

    def scriptNameDefaultsToApplicationName() {
        task.outputDir = new File('output')

        when:
        task.applicationName = "myApp"

        then:
        task.unixScript == new File(task.outputDir, 'myApp')
        task.windowsScript == new File(task.outputDir, 'myApp.bat')
    }

    def optsEnvironmentVariableNameDefaultsToApplicationName() {
        when:
        task.applicationName = null

---
apiVersion: v1
kind: Pod
metadata:
  labels:
    app: reviews
  name: reviews
  namespace: default
---
apiVersion: v1
kind: Pod
metadata:
  labels:
    app: ratings-app
    myapp: ratings-myapp
  name: ratings
  namespace: default
---
apiVersion: networking.istio.io/v1alpha3
kind: Sidecar
metadata:
  name: maps-correctly-no-conflicts
  namespace: default
spec:
  workloadSelector:

<div class="termy">

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

</div>

but is not called when another file imports it, like in:

```Python
from myapp import app
```

#### More details

Let's say your file is named `myapp.py`.

If you run it with:

<div class="termy">

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

</div>

`__name__ == "__main__"` 的主要目的是使用以下代码调用文件时执行一些代码：

<div class="termy">

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

</div>

而当其它文件导入它时并不会被调用，像这样：

```Python
from myapp import app
```

#### 更多细节

假设你的文件命名为 `myapp.py`。

如果你这样运行：

<div class="termy">

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

</div>

那么文件中由 Python 自动创建的内部变量 `__name__`，会将字符串 `"__main__"` 作为值。

所以，下面这部分代码才会运行：

apiVersion: networking.istio.io/v1alpha3
kind: Gateway
metadata:
  name: httpbin-gateway
spec:
  selector:
    myapp: private-ingressgateway
  servers:
  - port:
      number: 8004
      name: http2
      protocol: HTTP
    hosts:
    - "*"
---
apiVersion: v1
kind: Pod
metadata:
  labels:
    myapp: private-ingressgateway
  name: my-ingressgateway-1234
spec:
  containers:
    - args:

<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>