`app/routers/users.py` と `app/routers/items.py` は同じ Python パッケージ `app` のサブモジュールなので、1つのドット `.` を使った「相対インポート」でインポートできます。

### インポートの動作 { #how-the-importing-works }

次の部分:

```Python
from .routers import items, users
```

は次の意味です:

* このモジュール（`app/main.py`）が存在する同じパッケージ（ディレクトリ `app/`）から開始し...
* サブパッケージ `routers`（ディレクトリ `app/routers/`）を探し...

// Use Close to ensure resources are released on incomplete streams.
//
// input 'on' is always recommended such that this function works
// properly, because we do not wish to create an object even if
// client closed the stream prematurely.
func newS2CompressReader(r io.Reader, on int64, encrypted bool) (rc io.ReadCloser, idx func() []byte) {

### 非同期コードの他の形式 { #other-forms-of-asynchronous-code }

`async` と `await` を使うこのスタイルは、言語としては比較的新しいものです。

しかし、これにより非同期コードの取り扱いは大幅に簡単になります。

同等 (ほぼ同一) の構文が最近の JavaScript (ブラウザと NodeJS) にも導入されました。

それ以前は、非同期コードの扱いはかなり複雑で難解でした。

// https://www.iana.org/domains/root/db/woodside.html
woodside

// work : Registry Services, LLC
// https://www.iana.org/domains/root/db/work.html
work

// works : Binky Moon, LLC
// https://www.iana.org/domains/root/db/works.html
works

// world : Binky Moon, LLC
// https://www.iana.org/domains/root/db/world.html
world

// wow : Amazon Registry Services, Inc.

      V v4,
      K k5,
      V v5,
      K k6,
      V v6,
      K k7,
      V v7,
      K k8,
      V v8,
      K k9,
      V v9) {
    /*
     * This explicit type parameter works around what seems to be a javac bug in certain
     * configurations: b/339186525#comment6
     */
    return ImmutableSortedMap.fromEntries(
        entryOf(k1, v1),
        entryOf(k2, v2),
        entryOf(k3, v3),

     *    public List<X509Certificate> checkServerTrusted(
     *        X509Certificate[] chain, String authType, String host) throws CertificateException {
     *    }
     * ```
     *
     * This method works like [X509TrustManager.checkServerTrusted] but it receives the hostname of
     * the server as an extra parameter. Regardless of what checks this method performs, OkHttp will

### 비동기 코드의 다른 형태 { #other-forms-of-asynchronous-code }

`async`와 `await`를 사용하는 이 스타일은 언어에서 비교적 최근에 추가되었습니다.

하지만 비동기 코드를 다루는 일을 훨씬 더 쉽게 만들어 줍니다.

거의 동일한 문법이 최근 브라우저와 NodeJS의 최신 JavaScript에도 포함되었습니다.

                          by Lewis Carroll

First published in 1865.

This text was produced by Project Gutenberg www.gutenberg.org,
an organization that produces free electronic books, mostly of
works old enough that they have passed into the public domain.


                            CHAPTER I

                      Down the Rabbit-Hole


  Alice was beginning to get very tired of sitting by her sister

      V v4,
      K k5,
      V v5,
      K k6,
      V v6,
      K k7,
      V v7,
      K k8,
      V v8,
      K k9,
      V v9) {
    /*
     * This explicit type parameter works around what seems to be a javac bug in certain
     * configurations: b/339186525#comment6
     */
    return ImmutableSortedMap.fromEntries(
        entryOf(k1, v1),
        entryOf(k2, v2),
        entryOf(k3, v3),

          assertTrue(left + " should be after " + right, i >= j);
        }
        j++;
      }
      i++;
    }
  }

  // Tests to make sure assertSubtypeBeforeSupertype() works.

  public void testAssertSubtypeTokenBeforeSupertypeToken_empty() {
    assertSubtypeTokenBeforeSupertypeToken(ImmutableList.<TypeToken<?>>of());
  }