所以，下面这部分代码才会运行：

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

---

如果你是导入这个模块（文件）就不会这样。

因此，如果你的另一个文件 `importer.py` 像这样：

```Python
from myapp import app

# Some more code
```

在这种情况下，`myapp.py` 内部的自动变量不会有值为 `"__main__"` 的变量 `__name__`。

所以，下面这一行不会被执行：

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

/// info

            Runtime.getRuntime().removeShutdownHook(this);
        }
        return false;
    }


    /**
     * {@inheritDoc}
     *
     * @see java.lang.Thread#run()
     */
    @Override
    public void run () {
        try {
            this.closed = true;
            close();
        }
        catch ( CIFSException e ) {
            log.warn("Failed to close context on shutdown", e);

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

</div>

então a variável interna `__name__` no seu arquivo, criada automaticamente pelo Python, terá como valor a string `"__main__"`.

Então, a seção:

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

vai executar.

---

Isso não acontecerá se você importar esse módulo (arquivo).

Então, se você tiver outro arquivo `importer.py` com:

```Python

				t.Fatal(err)
			}
			if err := w.Close(); err != nil {
				t.Fatal(err)
			}
		}
	}
	t.Run("uint32max-2_NoZip64", func(t *testing.T) {
		t.Parallel()
		if generatesZip64(t, gen(0xfffffffe)) {
			t.Error("unexpected zip64")
		}
	})
	t.Run("uint32max-1_Zip64", func(t *testing.T) {
		t.Parallel()
		if !generatesZip64(t, gen(0xffffffff)) {
			t.Error("expected zip64")
		}

# Linux x86 so that we can use RBE. Since tests still need to run on the single
# host Arm64 machine, the build becomes too slow (~30 min) to be a presubmit.
# For testing purposes, we want to see the runtime performance of an
# experimental job that is build-only, i.e, we only build the test targets and
# do not run them. By prefixing the configs with "build", we can run both

FROM python:3.9

RUN pip install httpx PyGithub "pydantic==2.0.2" pydantic-settings "pyyaml>=5.3.1,<6.0.0"

COPY ./app /app

      new Runnable() {
        @Override
        public void run() {
          list.execute();
        }
      };

  @Benchmark
  int addThenExecute_multiThreaded(final int reps) throws InterruptedException {
    Runnable addTask =
        new Runnable() {
          @Override
          public void run() {
            for (int i = 0; i < numListeners; i++) {

# Run manually to reformat a file:
# clang-format -i --style=file <file>
BasedOnStyle: Google

     */
    @Nonnull
    Optional<Boolean> showVersion();

    /**
     * Indicates whether to run in quiet mode.
     *
     * @return an {@link Optional} containing the boolean flag, or empty if not set
     */
    @Nonnull
    Optional<Boolean> quiet();

    /**
     * Indicates whether to run in verbose mode.
     *
     * @return an {@link Optional} containing the boolean flag, or empty if not set
     */

            if (n <= 0) {
                break;
            }
            i += n;
        }

        return i;
    }

    /* state values
     * 0 - not connected
     * 1 - connecting
     * 2 - run connected
     * 3 - connected
     * 4 - error
     */
    int state = 0;

    String name = "Transport" + id++;
    Thread thread;
    TransportException te;