# Default options should come above this line.

# Android configs. Bazel needs to have --cpu and --fat_apk_cpu both set to the
# target CPU to build transient dependencies correctly. See
# https://docs.bazel.build/versions/master/user-manual.html#flag--fat_apk_cpu
common:android --config=clang_local
common:android --crosstool_top=//external:android/crosstool
common:android --host_crosstool_top=@bazel_tools//tools/cpp:toolchain

          // requireNonNull is safe because right must exist in order to get a negative factor.
          requireNonNull(right);
          if (right.balanceFactor() > 0) {
            right = right.rotateRight();
          }
          return rotateLeft();
        case 2:
          // requireNonNull is safe because left must exist in order to get a positive factor.
          requireNonNull(left);
          if (left.balanceFactor() < 0) {

// 在此之后这个环境变量将不会依然存在
$ python main.py

Hello World from Python
```

</div>

/// tip

你可以在 <a href="https://12factor.net/zh_cn/config" class="external-link" target="_blank">The Twelve-Factor App: 配置</a>中了解更多信息。

///

## 类型和验证

这些环境变量只能处理**文本字符串**，因为它们是处于 Python 范畴之外的，必须与其他程序和操作系统的其余部分兼容（甚至与不同的操作系统兼容，如 Linux、Windows、macOS）。

这意味着从环境变量中读取的**任何值**在 Python 中都将是一个 `str`，任何类型转换或验证都必须在代码中完成。

 *
 * <p>Implementors of this interface are strongly encouraged to extend one of the abstract classes
 * in this package which implement this interface and make the threading and state management
 * easier.
 *
 * @author Jesse Wilson
 * @author Luke Sandberg
 * @since 9.0 (in 1.0 as {@code com.google.common.base.Service})
 */
@DoNotMock("Create an AbstractIdleService")
@J2ktIncompatible
@GwtIncompatible

          // requireNonNull is safe because right must exist in order to get a negative factor.
          requireNonNull(right);
          if (right.balanceFactor() > 0) {
            right = right.rotateRight();
          }
          return rotateLeft();
        case 2:
          // requireNonNull is safe because left must exist in order to get a positive factor.
          requireNonNull(left);
          if (left.balanceFactor() < 0) {

      comment syntax for the file format. We also recommend that a
      file or class name and description of purpose be included on the
      same "printed page" as the copyright notice for easier
      identification within third-party archives.

   Copyright [yyyy] [name of copyright owner]

   Licensed under the Apache License, Version 2.0 (the "License");

To sign off a single commit:

`git commit --amend --signoff`

To sign off one or multiple commits:

`git rebase --signoff origin/master`

Then force push your branch:

`git push --force origin test-branch`

### Fixing sanity check failures after public API changes

   * can hold setSize elements with the desired load factor. Always returns at least setSize + 2.
   */
  // TODO(cpovirk): Move to Hashing or something, since it's used elsewhere in the Android version.
  static int chooseTableSize(int setSize) {
    setSize = max(setSize, 2);
    // Correct the size for open addressing to match desired load factor.
    if (setSize < CUTOFF) {

Pull Requests를 이용하여 소스코드에 [컨트리뷰트](contributing.md){.internal-link target=\_blank} 할 수 있습니다. 예를 들면 다음과 같습니다:

* 문서에서 발견한 오타를 수정할 때.
* FastAPI 관련 문서, 비디오 또는 팟캐스트를 작성했거나 발견하여 <a href="https://github.com/fastapi/fastapi/edit/master/docs/en/data/external_links.yml" class="external-link" target="_blank">이 파일을 편집하여</a> 공유할 때.
    * 해당 섹션의 시작 부분에 링크를 추가해야 합니다.
* 당신의 언어로 [문서 번역하는데](contributing.md#translations){.internal-link target=\_blank} 기여할 때.

<a href="https://github.com/fastapi/fastapi/actions?query=workflow%3ATest+event%3Apush+branch%3Amaster" target="_blank">
    <img src="https://github.com/fastapi/fastapi/actions/workflows/test.yml/badge.svg?event=push&branch=master" alt="Test">
</a>
<a href="https://coverage-badge.samuelcolvin.workers.dev/redirect/fastapi/fastapi" target="_blank">
    <img src="https://coverage-badge.samuelcolvin.workers.dev/fastapi/fastapi.svg" alt="Coverage">
</a>