repeats of these filename(s) with different casing:
EOF
    find . | tr '[A-Z]' '[a-z]' | sort | uniq -d | tee $BATS_FILE_TMPDIR/repeats
    [[ ! -s $BATS_FILE_TMPDIR/repeats ]]
}

# It's unclear why, but running this on //tensorflow/... is faster than running
# only on affected targets, usually. There are targets in //tensorflow/lite that
# don't pass --nobuild, so they're on their own.
#

 *
 * <p>Some care is needed when using {@code Cleaner} to ensure that the callback passed to {@code
 * register} does not have a reference to the object (in this case, {@code MyServer}) that may be
 * garbage-collected. That's why we are careful to make a {@code Runnable} that does not have a
 * reference to any {@code MyServer} instance.
 *
 * @author Bob Lee
 * @since 2.0
 */
@J2ktIncompatible
@GwtIncompatible

이는 `docker compose`를 사용할 때 꽤 눈에 띌 수 있습니다. 좀 더 기술적인 상세 내용은 Docker Compose FAQ 섹션을 참고하세요: [Why do my services take 10 seconds to recreate or stop?](https://docs.docker.com/compose/faq/#why-do-my-services-take-10-seconds-to-recreate-or-stop).

#### 디렉터리 구조 { #directory-structure }

이제 다음과 같은 디렉터리 구조가 되어야 합니다:

```
.
├── app
│   ├── __init__.py

    return new ImmutableSortedMap<K, V>(delegate, comparator);
  }

  /*
   * We don't permit nulls, but we wrap every comparator with nullsFirst().
   * Why? We want for queries like containsKey(null) to return false, but the
   * GWT SortedMap implementation that we delegate to throws
   * NullPointerException if the comparator does. Since our construction

      this.function = checkNotNull(function);
    }

    /**
     * The default implementation inherited is based on iteration and removal of each element which
     * can be overkill. That's why we forward this call directly to the backing list.
     */
    @Override
    protected void removeRange(int fromIndex, int toIndex) {
      fromList.subList(fromIndex, toIndex).clear();
    }

    @Override

这样，当你运行 `python` 时，它不会尝试从那个虚拟环境及其已安装的软件包中运行。

## 开始工作 { #ready-to-work }

现在你已经准备好开始你的工作了。



/// tip | 提示

你想要理解上面的所有内容吗？

继续阅读。👇🤓

///

## 为什么要使用虚拟环境 { #why-virtual-environments }

你需要安装 [Python](https://www.python.org/) 才能使用 FastAPI。

之后，你需要**安装** FastAPI 和你想要使用的任何其他**软件包**。

要安装软件包，你通常会使用随 Python 一起提供的 `pip` 命令（或类似的替代方案）。

    private final PatternFilterable testPatternSet;
    private final Factory<PatternSet> patternSetFactory;
    private final List<RestTestTransform<?>> transformations = new ArrayList<>();
    // PatternFilterable -> reason why skipped.
    private final Map<PatternFilterable, String> skippedTestByFilePatternTransformations = new HashMap<>();
    // PatternFilterable -> list of full test names and reasons. Needed for 1 pattern may include many tests and reasons

      this.function = checkNotNull(function);
    }

    /**
     * The default implementation inherited is based on iteration and removal of each element which
     * can be overkill. That's why we forward this call directly to the backing list.
     */
    @Override
    protected void removeRange(int fromIndex, int toIndex) {
      fromList.subList(fromIndex, toIndex).clear();
    }

    @Override

In this case, because the two models are different, if we annotated the function return type as `UserOut`, the editor and tools would complain that we are returning an invalid type, as those are different classes.

That's why in this example we have to declare it in the `response_model` parameter.

...but continue reading below to see how to overcome that.

## Return Type and Data Filtering { #return-type-and-data-filtering }

///

## 密碼雜湊 { #password-hashing }

「雜湊」是指把某些內容（此處為密碼）轉換成一串看起來像亂碼的位元組序列（其實就是字串）。

每當你輸入完全相同的內容（完全相同的密碼），就會得到完全相同的亂碼。

但你無法從這串亂碼再反推回原本的密碼。

### 為什麼要用密碼雜湊 { #why-use-password-hashing }

如果你的資料庫被偷了，竊賊拿到的不是使用者的明文密碼，而只是雜湊值。

因此，竊賊無法直接拿該密碼去嘗試登入其他系統（由於許多使用者在各處都用同一組密碼，這會很危險）。

## 安裝 `pwdlib` { #install-pwdlib }

pwdlib 是一個很棒的 Python 套件，用來處理密碼雜湊。

它支援多種安全的雜湊演算法與相關工具。