{* ../../docs_src/debugging/tutorial001_py39.py hl[1,15] *}

### About `__name__ == "__main__"` { #about-name-main }

The main purpose of the `__name__ == "__main__"` is to have some code that is executed when your file is called with:

<div class="termy">

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

</div>

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

```Python
from myapp import app
```

import org.codelibs.fess.helper.LanguageHelper;
import org.codelibs.fess.opensearch.client.SearchEngineClient;
import org.codelibs.fess.thumbnail.ThumbnailManager;
import org.codelibs.fess.util.ComponentUtil;
import org.lastaflute.web.Execute;
import org.lastaflute.web.response.JsonResponse;
import org.opensearch.action.bulk.BulkResponse;

import jakarta.annotation.Resource;

/**
 * API action for admin document management.

            SearchResponse response = client.prepareSearch(index)
                    .setQuery(queryBuilder)
                    .setSize(500)
                    .setScroll(settings.getScrollTimeout())
                    .execute()
                    .actionGet(settings.getSearchTimeout());
            String scrollId = response.getScrollId();
            try {
                while (scrollId != null) {

      request
        .newBuilder()
        .build()

    val call = client.newCall(networkRequest)

    call.execute().use { response ->
      assertThat(response.code).isEqualTo(200)
      assertThat(response.cacheResponse).isNull()
    }

    val cachedCall = client.newCall(request)

    cachedCall.execute().use { response ->
      assertThat(response.code).isEqualTo(200)
      assertThat(response.cacheResponse).isNotNull()

	req.Header.Set("Content-Type", contentTypeHdr)
	req.Header.Set("User-Agent", "Mozilla")

	// Since `apiRouter` satisfies `http.Handler` it has a ServeHTTP to execute the logic of the handler.
	// Call the ServeHTTP to execute the handler.
	apiRouter.ServeHTTP(rec, req)

	ctx, cancel := context.WithCancel(GlobalContext)
	defer cancel()

        this.lifecycleDebugLogger = lifecycleDebugLogger;
        this.lifecycleTaskSegmentCalculator = lifecycleTaskSegmentCalculator;
        this.builders = builders;
    }

    @Override
    public void execute(MavenSession session) {
        eventCatapult.fire(ExecutionEvent.Type.SessionStarted, session, null);

        ReactorContext reactorContext = null;
        ProjectBuildList projectBuilds = null;

        FsctlPipeWaitRequest request = new FsctlPipeWaitRequest(pipeName);
        byte[] nameBytes = pipeName.getBytes(StandardCharsets.UTF_16LE);
        byte[] buffer = new byte[100];

        // Execute
        int bytesEncoded = request.encode(buffer, 0);

        // Verify
        assertEquals(14 + nameBytes.length, bytesEncoded);

        // Check timeout (should be 0)

    #   [true]
    #     Table names on SQL executed by condition-bean or behavior
    #     are forcedly treated as upper case. (except outside-SQL)
    #
    #; isTableSqlNameUpperCase = false
    # - - - - - - - - - -/

    # /- - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    # o isColumnSqlNameUpperCase: (NotRequired - Default false)
    #   [true]
    #     Column names on SQL executed by condition-bean or behavior

    assertFalse(future.isCancelled());

    ExecutorService executor = newSingleThreadExecutor();

    try {
      Future<Boolean> getResult = executor.submit(() -> future.get());

      // Release the future value.
      latch.countDown();

      assertTrue(getResult.get(10, SECONDS));
    } finally {
      executor.shutdownNow();
    }

    assertTrue(future.isDone());

    // Create request for remote resource.
    Request request = new Request.Builder()
        .url(ENDPOINT)
        .build();

    // Execute the request and retrieve the response.
    try (Response response = client.newCall(request).execute()) {
      // Deserialize HTTP response to concrete type.
      ResponseBody body = response.body();