* In requests and responses, handled the same as a `float`.
* You can check all the valid Pydantic data types here: <a href="https://docs.pydantic.dev/latest/usage/types/types/" class="external-link" target="_blank">Pydantic data types</a>.

## Example

Here's an example *path operation* with parameters using some of the above types.

//// tab | Python 3.10+

```Python hl_lines="1  3  12-16"

package dns

import (
	"encoding/json"
	"time"
)

const (
	defaultTTL            = 30
	defaultContextTimeout = 5 * time.Minute
)

// SrvRecord - represents a DNS service record
type SrvRecord struct {
	Host     string      `json:"host,omitempty"`
	Port     json.Number `json:"port,omitempty"`
	Priority int         `json:"priority,omitempty"`
	Weight   int         `json:"weight,omitempty"`

import types
from enum import Enum
from typing import Any, Callable, Dict, Set, Type, TypeVar, Union

from pydantic import BaseModel

DecoratedCallable = TypeVar("DecoratedCallable", bound=Callable[..., Any])
UnionType = getattr(types, "UnionType", Union)
ModelNameMap = Dict[Union[Type[BaseModel], Type[Enum]], str]

В тот же момент вы пытаетесь запустить автодополнение с помощью `Ctrl+Space` и вы видите:

<img src="/img/python-types/image02.png">

При этом вы можете просматривать варианты, пока не найдёте подходящий:

<img src="/img/python-types/image03.png">

## Больше мотивации

Проверьте эту функцию, она уже имеет аннотации типов:

```Python hl_lines="1"

package types

// TargetType indicates type of the target e.g. console, http, kafka
type TargetType uint8

//go:generate stringer -type=TargetType -trimprefix=Target $GOFILE

// Constants for target types
const (
	_ TargetType = iota
	TargetConsole
	TargetHTTP
	TargetKafka
)

// TargetStats contains statistics for a target.
type TargetStats struct {

Şimdi programı sıfırdan birdaha yazdığınızı hayal edin.

Aynı noktada, `Ctrl+Space` ile otomatik tamamlamayı tetiklediniz  ve şunu görüyorsunuz:

<img src="/img/python-types/image02.png">

Aradığınızı bulana kadar seçenekleri kaydırabilirsiniz:

<img src="/img/python-types/image03.png">

## Daha fazla motivasyon

Bu fonksiyon, zaten tür belirteçlerine sahip:

```Python hl_lines="1"

而且添加类型提示一般不会改变原来的运行结果。

现在假设我们又一次正在创建这个函数，这次添加了类型提示。

在同样的地方，通过 `Ctrl+Space` 触发自动补全，你会发现：

<img src="https://fastapi.tiangolo.com/img/python-types/image02.png">

这样，你可以滚动查看选项，直到你找到看起来眼熟的那个：

<img src="https://fastapi.tiangolo.com/img/python-types/image03.png">

## 更多动机

下面是一个已经有类型提示的函数：

```Python hl_lines="1"
{!../../docs_src/python_types/tutorial003.py!}
```

<img src="/img/python-types/image02.png">

⏮️ 👈, 👆 💪 📜, 👀 🎛, ⏭ 👆 🔎 1️⃣ 👈 "💍 🔔":

<img src="/img/python-types/image03.png">

## 🌅 🎯

✅ 👉 🔢, ⚫️ ⏪ ✔️ 🆎 🔑:

```Python hl_lines="1"
{!../../docs_src/python_types/tutorial003.py!}
```

↩️ 👨‍🎨 💭 🆎 🔢, 👆 🚫 🕴 🤚 🛠️, 👆 🤚 ❌ ✅:

<img src="/img/python-types/image04.png">

    /**
     * Returns the dependency type id.
     * The id uniquely identifies this <i>dependency type</i>.
     *
     * @return the id of this type, never {@code null}.
     */
    @Nonnull
    String id();

    /**
     * Returns the dependency type language.
     *
     * @return the language of this type, never {@code null}.
     */
    @Nonnull
    Language getLanguage();

    /**

しかし今、あなたが再びその関数を作成している最中に、型ヒントを使っていると想像してみて下さい。

同じタイミングで`Ctrl+Space`で自動補完を実行すると、以下のようになります:

<img src="https://fastapi.tiangolo.com/img/python-types/image02.png">

これであれば、あなたは「ベルを鳴らす」一つを見つけるまで、オプションを見て、スクロールすることができます:

<img src="https://fastapi.tiangolo.com/img/python-types/image03.png">

## より強い動機

この関数を見てください。すでに型ヒントを持っています:

```Python hl_lines="1"
{!../../docs_src/python_types/tutorial003.py!}
```