* are guaranteed to not deadlock each other.
   *
   * <p>It should be noted that using a {@code Striped<L>} with relatively few stripes, and {@code
   * bulkGet(keys)} with a relative large number of keys can cause an excessive number of shared
   * stripes (much like the birthday paradox, where much fewer than anticipated birthdays are needed

我們需要從模組 `app.dependencies`（檔案 `app/dependencies.py`）取得相依性函式。

因此我們用 `..` 做相對匯入相依性：

{* ../../docs_src/bigger_applications/app_an_py310/routers/items.py hl[3] title["app/routers/items.py"] *}

#### 相對匯入如何運作 { #how-relative-imports-work }

/// tip | 提示

如果你對匯入的運作方式十分了解，可以直接跳到下一節。

///

單一的點號 `.`，如下：

```Python
from .dependencies import get_token_header
```

代表：

```
### Beispiel { #example }
```

### Links

Use the following rules for links (apply both to Markdown-style links ([text](url)) and to HTML-style <a href="url">text</a> tags):

- For relative URLs, only translate the link text. Do not translate the URL or its parts.

Example:

Source (English):

```
[One of the fastest Python frameworks available](#performance)
```

Result (German):

                used_package_dirs.add(package_root)
    removed = 0
    for py_file in sorted(docs_src_path.rglob("*.py")):
        if py_file.name == "__init__.py":
            continue
        # Build the relative path as it appears in includes (e.g. docs_src/first_steps/tutorial001.py)
        rel_path = str(py_file)
        if rel_path in all_docs_content:
            continue

{* ../../docs_src/bigger_applications/app_an_py310/routers/items.py hl[3] title["app/routers/items.py"] *}

#### Comprendre le fonctionnement des imports relatifs { #how-relative-imports-work }

/// tip | Astuce

Si vous savez parfaitement comment fonctionnent les imports, passez à la section suivante ci-dessous.

///

Un seul point `.`, comme dans :

```Python

Así que usamos un import relativo con `..` para las dependencias:

{* ../../docs_src/bigger_applications/app_an_py310/routers/items.py hl[3] title["app/routers/items.py"] *}

#### Cómo funcionan los imports relativos { #how-relative-imports-work }

/// tip | Consejo

Si sabes perfectamente cómo funcionan los imports, continúa a la siguiente sección abajo.

///

Un solo punto `.`, como en:

```Python

Então usamos uma importação relativa com `..` para as dependências:

{* ../../docs_src/bigger_applications/app_an_py310/routers/items.py hl[3] title["app/routers/items.py"] *}

#### Como funcionam as importações relativas { #how-relative-imports-work }

/// tip | Dica

Se você sabe perfeitamente como funcionam as importações, continue para a próxima seção abaixo.

///

Um único ponto `.`, como em:

```Python

                 * StandardTable supports. Thus, requireNonNull is safe as long as the cell is still
                 * present. (And if it's not present, behavior is undefined.) However, that's a
                 * behavior change relative to the old code, so it didn't seem worth risking.)
                 */
                return uncheckedCastNullableTToT(
                    entry.getValue().put(columnKey, checkNotNull(value)));
              }

Vous feriez probablement cela une seule fois, la première fois, lors de la mise en place de l'ensemble.

/// tip | Astuce

Cette partie relative au nom de domaine intervient bien avant HTTPS, mais comme tout dépend du domaine et de l'adresse IP, il vaut la peine de la mentionner ici.

///

### DNS { #dns }

Тож ми використовуємо відносний імпорт з `..` для залежностей:

{* ../../docs_src/bigger_applications/app_an_py310/routers/items.py hl[3] title["app/routers/items.py"] *}

#### Як працюють відносні імпорти { #how-relative-imports-work }

/// tip | Порада

Якщо ви досконало знаєте, як працюють імпорти, перейдіть до наступного розділу нижче.

///

Одна крапка `.`, як у:

```Python