```

The second version is an "absolute import":

```Python
from app.routers import items, users
```

To learn more about Python Packages and Modules, read <a href="https://docs.python.org/3/tutorial/modules.html" class="external-link" target="_blank">the official Python documentation about Modules</a>.

///

### Avoid name collisions { #avoid-name-collisions }

* <a href="https://code.visualstudio.com/docs/python/environments#_select-and-activate-an-environment" class="external-link" target="_blank">VS Code</a>
* <a href="https://www.jetbrains.com/help/pycharm/creating-virtual-environment.html" class="external-link" target="_blank">PyCharm</a>

/// tip | Подсказка

Обычно это делается один раз, при создании виртуальной среды разработки.

///

## Деактивация виртуальной среды разработки

You can read more about it in the <a href="https://pyjwt.readthedocs.io/en/latest/installation.html" class="external-link" target="_blank">PyJWT Installation docs</a>.

///

## Password hashing { #password-hashing }

가장 중요한 건, 표준 파이썬 타입을 한 곳에서(클래스를 더하거나, 데코레이터 사용하는 대신) 사용함으로써 **FastAPI**가 당신을 위해 많은 일을 해준다는 사실이죠.

/// info | 정보

만약 모든 자습서를 다 보았음에도 타입에 대해서 더 보고자 방문한 경우에는 <a href="https://mypy.readthedocs.io/en/latest/cheat_sheet_py3.html" class="external-link" target="_blank">`mypy`에서 제공하는 "cheat sheet"</a>이 좋은 자료가 될 겁니다.

labels.facet_contentLength_250kto500k=250KB - 500KB
labels.facet_contentLength_1mto5m=1MB - 5MB
labels.facet_contentLength_5m=5MB -  
labels.facet_filetype_title=ファイルの種類
labels.facet_filetype_html=HTML
labels.facet_filetype_word=MS Word
labels.facet_filetype_excel=MS Excel
labels.facet_filetype_powerpoint=MS PowerPoint
labels.facet_filetype_odt=ODF Word
labels.facet_filetype_ods=ODF Spreadsheet

// Streaming signature clients can have custom content-encoding such as
// `aws-chunked,gzip` here we need to only save `gzip`.
// For more refer http://docs.aws.amazon.com/AmazonS3/latest/API/sigv4-streaming.html
func trimAwsChunkedContentEncoding(contentEnc string) (trimmedContentEnc string) {
	if contentEnc == "" {
		return contentEnc
	}
	var newEncs []string
	for enc := range strings.SplitSeq(contentEnc, ",") {

 * and {@link java.net.InetAddress}. The name resolution mechanisms
 * used will systematically query all available configured resolution
 * services including WINS, broadcasts, DNS, and LMHOSTS. See
 * <a href="../../resolver.html">Setting Name Resolution Properties</a>
 * and the <code>jcifs.smb1.resolveOrder</code> property. Changing
 * jCIFS name resolution properties can greatly affect the behavior of
 * the client and may be necessary for proper operation.

                    TikaExtractor tikaExtractor = container.getComponent("tikaExtractor");
                    factory.addExtractor("text/plain", tikaExtractor);
                    factory.addExtractor("text/html", tikaExtractor);
                })//
                .singleton("httpClient", HcHttpClient.class)//
                .singleton("sitemapsResponseProcessor", SitemapsResponseProcessor.class)//

`@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>.

## Recap { #recap }

⚠ 👜 👈 ⚙️ 🐩 🐍 🆎, 👁 🥉 (↩️ ❎ 🌖 🎓, 👨‍🎨, ♒️), **FastAPI** 🔜 📚 👷 👆.

/// info

🚥 👆 ⏪ 🚶 🔘 🌐 🔰 &amp; 👟 🔙 👀 🌅 🔃 🆎, 👍 ℹ <a href="https://mypy.readthedocs.io/en/latest/cheat_sheet_py3.html" class="external-link" target="_blank"> "🎮 🎼" ⚪️➡️ `mypy`</a>.