{* ../../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
```

    testRequest {
      val client = OkHttpClient()

      val response =
        client
          .newCall(
            Request((mockServer.endpoint + "/person?name=peter").toHttpUrl()),
          ).execute()

      assertThat(response.body.string()).contains("Peter the person")
      assertThat(response.protocol).isEqualTo(Protocol.HTTP_1_1)
    }
  }

  @Test
  fun testOkHttpProxied() {
    testRequest {

 * instances for each {@link Runnable} and {@link Callable} submitted to it. These tasks are run
 * with the abstract {@link #execute execute(Runnable)} method.
 *
 * <p>In addition to {@link #execute}, subclasses must implement all methods related to shutdown and
 * termination.
 *
 * @author Chris Povirk
 * @since 14.0
 */
@CheckReturnValue
@GwtIncompatible

org.apache.maven.plugin.coreit; public synchronized class ItMojo extends org.apache.maven.plugin.AbstractMojo { public void ItMojo(); public void execute(); } org/apache/maven/plugin/coreit/TestMojo.class package org.apache.maven.plugin.coreit; public synchronized class TestMojo extends org.apache.maven.plugin.AbstractMojo { public void TestMojo(); public void execute(); } pom.xml 4.0.0 org.apache.maven.plugins maven-plugin-plugin 0.1 maven-plugin Maven Integration Test Plugin A test plugin to assist testing...

org.apache.maven.plugin.coreit; public synchronized class ItMojo extends org.apache.maven.plugin.AbstractMojo { public void ItMojo(); public void execute(); } org/apache/maven/plugin/coreit/TestMojo.class package org.apache.maven.plugin.coreit; public synchronized class TestMojo extends org.apache.maven.plugin.AbstractMojo { public void TestMojo(); public void execute(); } pom.xml 4.0.0 org.apache.maven.plugins maven-resources-plugin 0.1 maven-plugin Maven Integration Test Plugin A test plugin to assist...

        .build()
    assertFailsWith<ProtocolException> {
      client.newCall(requestWithUpgrade).execute()
    }
  }

  @Test
  fun upgradesOnReusedConnection() {
    server.enqueue(MockResponse(body = "normal request"))
    client.newCall(Request(server.url("/"))).execute().use { response ->
      assertThat(response.body.string()).isEqualTo("normal request")
    }

    upgrade()

        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;

        MojoWrapper(org.apache.maven.api.plugin.Mojo mojoV4) {
            this.mojoV4 = mojoV4;
        }

        @Override
        public void execute() throws MojoExecutionException {
            try {
                mojoV4.execute();
            } catch (RuntimeException e) {
                throw e;
            } catch (Exception e) {
                throw new MojoExecutionException(e);
            }

        MojoExecutorStub mojoExecutor = new MojoExecutorStub() {
            @Override
            public void execute(MavenSession session, List<MojoExecution> mojoExecutions)
                    throws LifecycleExecutionException {
                super.execute(session, mojoExecutions);
                currentProjects.add(session.getCurrentProject());
            }
        };

    server.enqueue(
      MockResponse
        .Builder()
        .body("Hello!")
        .setHeader("Content-Type", PLAIN)
        .build(),
    )
    val response = client.newCall(request().build()).execute()
    assertThat(response.body).isNotNull()
    response.body.bytes()
    logRecorder
      .assertLogMatch(Regex("""callStart: Request\{method=GET, url=$url\}"""))
      .assertLogMatch(Regex("""proxySelectStart: $url"""))