As this has all the code which is what **changes most frequently** the Docker **cache** won't be used for this or any **following steps** easily.

    So, it's important to put this **near the end** of the `Dockerfile`, to optimize the container image build times.

6. Set the **command** to use `fastapi run`, which uses Uvicorn underneath.

檢查虛擬環境是否啟動（前面的指令是否生效）。

/// tip

這是**非必需的**，但這是一個很好的方法，可以**檢查**一切是否按預期工作，以及你是否使用了你打算使用的虛擬環境。

///

//// tab | Linux, macOS, Windows Bash

<div class="termy">

```console
$ which python

/home/user/code/awesome-project/.venv/bin/python
```

</div>

如果它顯示了在你專案（在這個例子中是 `awesome-project`）的 `.venv/bin/python` 中的 `python` 二進位檔案，那麼它就生效了。🎉

////

检查虚拟环境是否激活 (前面的命令是否生效)。

/// tip

这是 **可选的**，但这是一个很好的方法，可以 **检查** 一切是否按预期工作，以及你是否使用了你打算使用的虚拟环境。

///

//// tab | Linux, macOS, Windows Bash

<div class="termy">

```console
$ which python

/home/user/code/awesome-project/.venv/bin/python
```

</div>

如果它显示了在你工程 (在这个例子中是 `awesome-project`) 的 `.venv/bin/python` 中的 `python` 二进制文件，那么它就生效了。🎉

////

	maps.Copy(r, v)
	return r
}

// URI scheme constants.
const (
	httpScheme  = "http"
	httpsScheme = "https"
)

// nopCharsetConverter is a dummy charset convert which just copies input to output,
// it is used to ignore custom encoding charset in S3 XML body.
func nopCharsetConverter(label string, input io.Reader) (io.Reader, error) {
	return input, nil
}

That way, it behaves almost as if it was just a global variable. But as it uses a dependency function, then we can override it easily for testing.

`@lru_cache` is part of `functools` which is part of Python's standard library, you can read more about it in the <a href="https://docs.python.org/3/library/functools.html#functools.lru_cache" class="external-link" target="_blank">Python docs for `@lru_cache`</a>.

                    .hasArg()
                    .get());
            options.addOption(Option.builder(FAIL_ON_SEVERITY)
                    .longOpt("fail-on-severity")
                    .desc("Configure which severity of logging should cause the build to fail")
                    .hasArg()
                    .get());
            options.addOption(Option.builder(LOG_FILE)
                    .longOpt("log-file")

Un ejemplo difícil de literales de string en fragmentos de código: `f"I like {'oranges' if orange else "apples"}"`

Hardcore: `Yesterday, my friend wrote: "If you spell incorrectly correctly, you have spelled it incorrectly". To which I answered: "Correct, but 'incorrectly' is incorrectly not '"incorrectly"'"`

////

//// tab | Información

... Sin embargo, las comillas dentro de fragmentos de código deben quedarse tal cual.

////

     * searched for the lates blank line. This line will mark the end of the
     * header comment. The return value is the index of the first line in the
     * passed in list, which does not belong to the header comment.
     *
     * @param commentLines the comment lines
     * @return the index of the next line after the header comment
     */

     * searched for the lates blank line. This line will mark the end of the
     * header comment. The return value is the index of the first line in the
     * passed in list, which does not belong to the header comment.
     *
     * @param commentLines the comment lines
     * @return the index of the next line after the header comment
     */

			// at all.  This is to support clients like the AWS SDKs
			// or CLI that will not allow an AssumeRoleWithWebIdentity
			// call without a RoleARN parameter - for these cases the
			// user can supply a dummy ARN, which Minio will ignore.
			roleArn = openid.DummyRoleARN
			isRolePolicyProvider = false
		}
	}

	if !globalIAMSys.Initialized() {
		writeSTSErrorResponse(ctx, w, ErrSTSIAMNotInitialized, errIAMNotInitialized)