│   └── internal
│       ├── __init__.py
│       └── admin.py
```

/// tip | Tipp

Es gibt mehrere `__init__.py`-Dateien: eine in jedem Verzeichnis oder Unterverzeichnis.

Das ermöglicht den Import von Code aus einer Datei in eine andere.

In `app/main.py` könnten Sie beispielsweise eine Zeile wie diese haben:

```
from app.routers import items
```

///

But OAuth2 with scopes can be nicely integrated into your API (with OpenAPI) and your API docs.

Nevertheless, you still enforce those scopes, or any other security/authorization requirement, however you need, in your code.

In many cases, OAuth2 with scopes can be an overkill.

But if you know you need it, or you are curious, keep reading.

///

## OAuth2 scopes and OpenAPI { #oauth2-scopes-and-openapi }

整個 **FastAPI** 框架就是基於這一點，任何地方都可以進行自動補齊。

你幾乎不需要經常來回看文件。

在這裡，你的編輯器可能會這樣幫助你：

* <a href="https://code.visualstudio.com/" class="external-link" target="_blank">Visual Studio Code</a> 中:

![editor support](https://fastapi.tiangolo.com/img/vscode-completion.png)

* <a href="https://www.jetbrains.com/pycharm/" class="external-link" target="_blank">PyCharm</a> 中:

  @After
  public void validateUndirectedEdges() {
    for (Integer node : graph.nodes()) {
      new EqualsTester()
          .addEqualityGroup(
              graph.predecessors(node), graph.successors(node), graph.adjacentNodes(node))
          .testEquals();
    }
  }

  @Override
  @Test
  public void nodes_checkReturnedSetMutability() {

  // expectedHashCodes must contain at least one hash code with 4 bytes
  public void testFromInt() {
    for (ExpectedHashCode expected : expectedHashCodes) {
      if (expected.bytes.length == 4) {
        HashCode fromInt = HashCode.fromInt(expected.asInt);
        assertExpectedHashCode(expected, fromInt);
      }
    }
  }

  // expectedHashCodes must contain at least one hash code with 8 bytes
  public void testFromLong() {

import junit.framework.AssertionFailedError;
import org.jspecify.annotations.NullUnmarked;
import org.jspecify.annotations.Nullable;

/**
 * A helper for concurrency testing. One or more {@code TestThread} instances are instantiated in a
 * test with reference to the same "lock-like object", and then their interactions with that object
 * are choreographed via the various methods on this class.
 *

Da wir nun über den gesamten Sicherheitsablauf verfügen, machen wir die Anwendung tatsächlich sicher, indem wir <abbr title="JSON Web Tokens">JWT</abbr>-Tokens und sicheres Passwort-Hashing verwenden.

Diesen Code können Sie tatsächlich in Ihrer Anwendung verwenden, die Passwort-Hashes in Ihrer Datenbank speichern, usw.

Wir bauen auf dem vorherigen Kapitel auf.

## Über JWT

JWT bedeutet „JSON Web Tokens“.

    }

    /*
     * static class SynInfo { final String src; final int offset, length; final String[] synonyms; Mode mode; int count;
     * SynInfo(String src, int offset, int length, String[] synonyms){ this.src = src; this.offset = offset; this.length
     * = length; this.synonyms = synonyms; }
     *
     * static enum Mode { PREV, SYN, AFTER; } }
     */

    static class MyTokensComparator implements Comparator<MyToken> {

   *     found in the map.
   */
  protected abstract V getValueNotInPopulatedMap() throws UnsupportedOperationException;

  /**
   * Constructor that assigns {@code supportsIteratorRemove} the same value as {@code
   * supportsRemove}.
   */
  protected MapInterfaceTest(
      boolean allowsNullKeys,
      boolean allowsNullValues,
      boolean supportsPut,
      boolean supportsRemove,

    server.enqueue(
      MockResponse
        .Builder()
        .code(500)
        .build(),
    )
    val interceptor =
      Interceptor { chain: Interceptor.Chain ->
        Response
          .Builder()
          .request(chain.request())
          .protocol(Protocol.HTTP_1_1)
          .code(200)
          .message("Intercepted!")