private static final Inet4Address LOOPBACK4 = (Inet4Address) forString("127.0.0.1");
  private static final Inet4Address ANY4 = (Inet4Address) forString("0.0.0.0");

  private InetAddresses() {}

  /**
   * Returns an {@link Inet4Address}, given a byte array representation of the IPv4 address.
   *

	b.Run(" 0000|X000 ", func(b *testing.B) { benchmarkErasureEncode(4, 4, 0, 1, size, b) })
	b.Run(" X000|0000 ", func(b *testing.B) { benchmarkErasureEncode(4, 4, 1, 0, size, b) })
	b.Run(" 0000|XXX0 ", func(b *testing.B) { benchmarkErasureEncode(4, 4, 0, 3, size, b) })
	b.Run(" XXX0|0000 ", func(b *testing.B) { benchmarkErasureEncode(4, 4, 3, 0, size, b) })
}

то встроенная переменная `__name__`, автоматически создаваемая Python в вашем файле, будет иметь значение строкового типа `"__main__"`.

Тогда выполнится условие и эта часть кода:

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

будет запущена.

---

Но этого не произойдет, если вы импортируете этот модуль (файл).

Таким образом, если у вас есть файл `importer.py` с таким импортом:

```Python

import uvicorn
from fastapi import FastAPI

app = FastAPI()


@app.get("/")
def root():
    a = "a"
    b = "b" + a
    return {"hello world": b}


if __name__ == "__main__":

//// tab | Uvicorn

<div class="termy">

```console
$ uvicorn main:app --host 0.0.0.0 --port 80

<span style="color: green;">INFO</span>:     Uvicorn running on http://0.0.0.0:80 (Press CTRL+C to quit)
```

</div>

////

//// tab | Hypercorn

<div class="termy">

```console

        }
        writeInt2( writeMode, dst, dstIndex );
        dstIndex += 2;
        writeInt2( remaining, dst, dstIndex );
        dstIndex += 2;
        dst[dstIndex++] = (byte)0x00;
        dst[dstIndex++] = (byte)0x00;
        writeInt2( dataLength, dst, dstIndex );
        dstIndex += 2;
        writeInt2( dataOffset, dst, dstIndex );
        dstIndex += 2;
        writeInt4( offset >> 32, dst, dstIndex );

  }

  @Test
  fun inet4AddressToAscii() {
    assertThat(
      inet4AddressToAscii(
        byteArrayOf(0, 0, 0, 0),
      ),
    ).isEqualTo("0.0.0.0")

    assertThat(
      inet4AddressToAscii(
        byteArrayOf(1, 2, 3, 4),
      ),
    ).isEqualTo("1.2.3.4")

    assertThat(
      inet4AddressToAscii(

{
  "name": "k8s-pod-network",
  "plugins": [
    {
      "type": "calico",
      "etcd_endpoints": "http://10.110.0.136:6666",
      "plugin_log_level": "info",
      "mtu": 1500,
      "ipam": {
        "type": "calico-ipam"
      },
      "policy": {
        "type": "k8s"
      },
      "kubernetes": {
        "kubeconfig": "/etc/cni/net.d/calico-kubeconfig"
      }
    },
    {
      "type": "portmap",

{
  "name": "k8s-pod-network",
  "cniVersion": "0.3.1",
  "pugins": [
    {
      "type": "calico",
      "etcd_endpoints": "http://10.110.0.136:6666",
      "plugin_log_level": "info",
      "mtu": 1500,
      "ipam": {
        "type": "calico-ipam"
      },
      "policy": {
        "type": "k8s"
      },
      "kubernetes": {
        "kubeconfig": "/etc/cni/net.d/calico-kubeconfig"
      }
    },
    {

    {
      "etcd_endpoints": "http://10.110.0.136:6666",
      "ipam": {
        "type": "calico-ipam"
      },
      "kubernetes": {
        "kubeconfig": "/etc/cni/net.d/calico-kubeconfig"
      },
      "mtu": 1500,
      "plugin_log_level": "info",
      "policy": {
        "type": "k8s"
      },
      "type": "calico"
    },
    {
      "capabilities": {
        "portMappings": true
      },
      "snat": true,