The `name` parameter is **still required** (not *optional*) because it doesn't have a default value. Still, `name` accepts `None` as the value:

```Python
say_hi(name=None)  # This works, None is valid 🎉
```

The good news is, once you are on Python 3.10 you won't have to worry about that, as you will be able to simply use `|` to define unions of types:

{* ../../docs_src/python_types/tutorial009c_py310.py hl[1,4] *}

<div style="text-align: right; margin-right: 10%;">Timothy Crosley - <strong>Autor von <a href="https://github.com/hugapi/hug" target="_blank">Hug</a></strong> <a href="https://news.ycombinator.com/item?id=19455465" target="_blank"><small>(Ref)</small></a></div>

---

<div style="text-align: right; margin-right: 10%;">Timothy Crosley - <strong><a href="http://www.hug.rest/" target="_blank">Hug</a>'ın Yaratıcısı</strong> <a href="https://news.ycombinator.com/item?id=19455465" target="_blank"><small>(ref)</small></a></div>

---

<div style="text-align: right; margin-right: 10%;">টিমোথি ক্রসলে - <strong><a href="https://github.com/hugapi/hug" target="_blank">Hug</a> স্রষ্টা</strong> <a href="https://news.ycombinator.com/item?id=19455465" target="_blank"><small>(ref)</small></a></div>

---

<div style="text-align: right; margin-right: 10%;">Timothy Crosley - <strong><a href="https://github.com/hugapi/hug" target="_blank">Hug</a> creator</strong> <a href="https://news.ycombinator.com/item?id=19455465" target="_blank"><small>(ref)</small></a></div>

---

<div style="text-align: right; margin-right: 10%;">Timothy Crosley - <strong><a href="http://www.hug.rest/" target="_blank">Hug</a> 제작자</strong> <a href="https://news.ycombinator.com/item?id=19455465" target="_blank"><small>(ref)</small></a></div>

---

"_REST API를 만들기 위해 **현대적인 프레임워크**를 찾고 있다면 **FastAPI**를 확인해 보십시오. [...] 빠르고, 쓰기 쉽고, 배우기도 쉽습니다 [...]_"

            + "^\\s*irc:|" //
            + "^\\s*skype:|" //
            + "^\\s*about:|" + "^\\s*fscommand:|" //
            + "^\\s*aim:|" //
            + "^\\s*msnim:|" //
            + "^\\s*news:|" //
            + "^\\s*tel:|" //
            + "^\\s*unsaved:|" //
            + "^\\s*data:|" //
            + "^\\s*android-app:|" //
            + "^\\s*ios-app:|" //

<div style="text-align: right; margin-right: 10%;">Timothy Crosley - <strong><a href="https://github.com/hugapi/hug" target="_blank">Hug</a> creator</strong> <a href="https://news.ycombinator.com/item?id=19455465" target="_blank"><small>(ref)</small></a></div>

---

<div style="text-align: right; margin-right: 10%;">Timothy Crosley - <strong><a href="https://github.com/hugapi/hug" target="_blank">creador de Hug</a></strong> <a href="https://news.ycombinator.com/item?id=19455465" target="_blank"><small>(ref)</small></a></div>

---

<div style="text-align: right; margin-right: 10%;">Timothy Crosley - <strong><a href="https://github.com/hugapi/hug" target="_blank">Hug</a> creator</strong> <a href="https://news.ycombinator.com/item?id=19455465" target="_blank"><small>(ref)</small></a></div>

---