## 本地测试 Traefik

您可以轻易地在本地使用 <a href="https://docs.traefik.io/" class="external-link" target="_blank">Traefik</a> 运行移除路径前缀的试验。

<a href="https://github.com/containous/traefik/releases" class="external-link" target="_blank">下载 Traefik</a>，这是一个二进制文件，需要解压文件，并在 Terminal 中直接运行。

然后创建包含如下内容的 `traefik.toml` 文件：

```TOML hl_lines="3"
[entryPoints]
  [entryPoints.http]

* <a href="https://docs.python.org/3/library/contextlib.html#contextlib.contextmanager" class="external-link" target="_blank">`@contextlib.contextmanager`</a> или
* <a href="https://docs.python.org/3/library/contextlib.html#contextlib.asynccontextmanager" class="external-link" target="_blank">`@contextlib.asynccontextmanager`</a>

будет корректной для использования в качестве зависимости **FastAPI**.

    } else {
      renameFaults.remove(file)
    }
  }

  @Throws(IOException::class)
  override fun atomicMove(
    source: Path,
    target: Path,
  ) {
    if (renameFaults.contains(source) || renameFaults.contains(target)) throw IOException("boom!")
    super.atomicMove(source, target)
  }

  @Throws(IOException::class)
  override fun delete(
    path: Path,
    mustExist: Boolean,
  ) {

ECL0094=IllegalArgumentException occurred when value({7}) of class {5}[{6}] is set to {2}[{3}] field({4}) of class({0})[{1}]. Target class is ({8})[{9}].
ECL0097=Value({1}) of property({0}) can not be converted. because {2}.
ECL0098=Exception occurred when value({7}) of class{5}[{6}] is set to {2}[{3}] property({4}) of class({0})[{1}]. Target class is ({8})[{9}].
ECL0099=Field({1}) of class({0}) is not a static field.

By default, **FastAPI** would automatically convert that return value to JSON using the `jsonable_encoder` explained in [JSON Compatible Encoder](../tutorial/encoder.md){.internal-link target=_blank}.

Then, behind the scenes, it would put that JSON-compatible data (e.g. a `dict`) inside of a `JSONResponse` that would be used to send the response to the client.

По указанным причинам текущие версии до сих пор `0.x.x`. Это говорит о том, что каждая версия может содержать обратно несовместимые изменения, следуя <a href="https://semver.org/" class="external-link" target="_blank">Семантическому версионированию</a>.

import static java.lang.annotation.ElementType.TYPE;

import java.lang.annotation.Target;
import org.jspecify.annotations.NullMarked;

/**
 * Disables Animal Sniffer's checking of compatibility with older versions of Java/Android.
 *
 * <p>Each package's copy of this annotation needs to be listed in our {@code pom.xml}.
 */
@Target({METHOD, CONSTRUCTOR, TYPE, FIELD})
@NullMarked

## Conclusão { #conclusion }

Com isso, você deve ter uma compreensão básica do que são **variáveis ​​de ambiente** e como usá-las em Python.

Você também pode ler mais sobre elas na <a href="https://en.wikipedia.org/wiki/Environment_variable" class="external-link" target="_blank">Wikipedia para Variáveis ​​de Ambiente</a>.

上記のスクリーンショットは<a href="https://code.visualstudio.com" class="external-link" target="_blank">Visual Studio Code</a>を撮ったものです。

しかし、<a href="https://www.jetbrains.com/pycharm/" class="external-link" target="_blank">PyCharm</a>やほとんどのPythonエディタでも同様なエディターサポートを受けられます:

<img src="/img/tutorial/body/image05.png">

/// tip | 豆知識

* [Link interno](index.md#installation){.internal-link target=_blank}
* <a href="https://sqlmodel.tiangolo.com/" class="external-link" target="_blank">Link externo</a>
* <a href="https://fastapi.tiangolo.com/css/styles.css" class="external-link" target="_blank">Link para um estilo</a>
* <a href="https://fastapi.tiangolo.com/js/logic.js" class="external-link" target="_blank">Link para um script</a>