## Dependencias

Vemos que vamos a necesitar algunas dependencias usadas en varios lugares de la aplicación.

Así que las ponemos en su propio módulo `dependencies` (`app/dependencies.py`).

Ahora utilizaremos una dependencia simple para leer un encabezado `X-Token` personalizado:

//// tab | Python 3.9+

```Python hl_lines="3  6-8" title="app/dependencies.py"
{!> ../../docs_src/bigger_applications/app_an_py39/dependencies.py!}
```

## Dependências

Vemos que precisaremos de algumas dependências usadas em vários lugares da aplicação.

Então, as colocamos em seu próprio módulo de `dependencies` (`app/dependencies.py`).

Agora usaremos uma dependência simples para ler um cabeçalho `X-Token` personalizado:

//// tab | Python 3.9+

```Python hl_lines="3  6-8" title="app/dependencies.py"
{!> ../../docs_src/bigger_applications/app_an_py39/dependencies.py!}
```

        // This test ensures that for a standard HTTP URL, openConnection wraps the connection
        // in an NtlmHttpURLConnection, using mock handlers to avoid dependency on system handlers.
        setupMockProtocolHandlers();
        URL url = new URL("http://example.com/resource");
        URLConnection connection = handler.openConnection(url);

        super("synonym.*\\.txt");
    }

    /**
     * Registers this creator with the dictionary manager upon initialization.
     * This method is annotated with {@link PostConstruct} to be executed after
     * dependency injection is complete.
     */
    @PostConstruct
    public void register() {
        if (logger.isInfoEnabled()) {
            logger.info("Load {}", this.getClass().getSimpleName());
        }

    /** Factory for creating and managing ingesters */
    private IngestFactory ingestFactory = null;

    /**
     * Initializes the processor after dependency injection.
     * Sets up the ingest factory if available in the component system.
     */
    @PostConstruct
    public void init() {
        if (ComponentUtil.hasIngestFactory()) {

import org.apache.maven.artifact.versioning.VersionRange;

/**
 * Maven Artifact interface. Notice that it mixes artifact definition concepts (groupId, artifactId, version)
 * with dependency information (version range, scope).
 */
public interface Artifact extends Comparable<Artifact> {

    @Deprecated(since = "4.0.0")
    String RELEASE_VERSION = "RELEASE";

    @Deprecated(since = "4.0.0")

import java.util.Iterator;
import java.util.NoSuchElementException;
import org.jspecify.annotations.Nullable;

/**
 * Note this class is a copy of {@link com.google.common.collect.AbstractIterator} (for dependency
 * reasons).
 */
@GwtCompatible
abstract class AbstractIterator<T extends @Nullable Object> implements Iterator<T> {
  private State state = State.NOT_READY;

  protected AbstractIterator() {}

import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertTrue;

/**
 * A test which demonstrates maven's dependency management
 *
 */
@Deprecated
@SuppressWarnings("checkstyle:UnusedLocalVariable")
class ProjectInheritanceTest extends AbstractProjectInheritanceTestCase {

        MavenProject project = session.getCurrentProject();

        new ProjectBuilder(project)
                .addDependency(
                        "com.mycompany",
                        "system-dependency",
                        "1.0",
                        Artifact.SCOPE_SYSTEM,
                        new File(getBasedir(), "pom.xml").getAbsolutePath());

        Set<Artifact> artifactDependencies =

import javax.net.ssl.SSLSocket
import okhttp3.Protocol
import okhttp3.internal.platform.Platform
import org.conscrypt.Conscrypt

/**
 * Simple non-reflection SocketAdapter for Conscrypt when included as an application dependency
 * directly.
 */
class ConscryptSocketAdapter : SocketAdapter {
  override fun matchesSocket(sslSocket: SSLSocket): Boolean = Conscrypt.isConscrypt(sslSocket)

  override fun isSupported(): Boolean = isSupported