```

1. Here we use the `--workers` command line option to set the number of workers to 4.

Here are some examples of when that could make sense:

#### A Simple App { #a-simple-app }

You could want a process manager in the container if your application is **simple enough** that can run it on a **single server**, not a cluster.

#### Docker Compose { #docker-compose }

# First Steps { #first-steps }

The simplest FastAPI file could look like this:

{* ../../docs_src/first_steps/tutorial001_py39.py *}

Copy that to a file `main.py`.

Run the live server:

<div class="termy">

```console
$ <font color="#4E9A06">fastapi</font> dev <u style="text-decoration-style:solid">main.py</u>

  <span style="background-color:#009485"><font color="#D3D7CF"> FastAPI </font></span>  Starting development server 🚀

from pydantic import BaseModel, Field

app = FastAPI()


class Item(BaseModel):
    name: str = Field(examples=["Foo"])
    description: Union[str, None] = Field(default=None, examples=["A very nice Item"])
    price: float = Field(examples=[35.4])
    tax: Union[float, None] = Field(default=None, examples=[3.2])


@app.put("/items/{item_id}")
async def update_item(item_id: int, item: Item):

plugins {
  kotlin("jvm")
  application
}

application {
  mainClass.set("okhttp3.sample.Crawler")
}

dependencies {
  implementation(projects.okhttp)
  implementation(libs.jsoup)
}

tasks.compileJava {
  options.isWarnings = false

They are, more or less, at opposite ends, complementing each other.

Requests has a very simple and intuitive design, it's very easy to use, with sensible defaults. But at the same time, it's very powerful and customizable.

That's why, as said in the official website:

> Requests is one of the most downloaded Python packages of all time

The way you use it is very simple. For example, to do a `GET` request, you would write:

```Python

### Content of code blocks

Do not translate the content of code blocks, except for comments in the language which the code block uses.

Examples:

    Source (English) – The code block is a bash code example with one comment:

        «««
        ```bash
        # Print greeting
        echo "Hello, World!"
        ```
        »»»

Especificamente, observa-se Uvicorn, Starlette e FastAPI comparados juntos (entre muitas outras ferramentas).

Quanto mais simples o problema resolvido pela ferramenta, melhor a performance que ela terá. E a maioria dos _benchmarks_ não testam as características adicionais fornecidas pela ferramenta.

A hierarquia segue assim:

    - [Other notable changes](#other-notable-changes-19)
<!-- END MUNGE: GENERATED_TOC -->

<!-- NEW RELEASE NOTES ENTRY -->


# v1.4.12

[Documentation](https://docs.k8s.io) & [Examples](https://releases.k8s.io/release-1.4/examples)

## Downloads for v1.4.12


filename | sha256 hash
-------- | -----------

2) Do not change quotes inside inline code, code blocks, URLs, or file paths.

### Ellipsis

1) Keep ellipsis style consistent with existing Japanese docs (commonly `...`).
2) Never change `...` in code, URLs, or CLI examples.

### Preferred translations / glossary

Use the following preferred translations when they apply in documentation prose:

- request (HTTP): リクエスト
- response (HTTP): レスポンス
- path operation: パスオペレーション

2) Never change quotes inside inline code, code blocks, URLs, or file paths.

### Ellipsis

1) Keep ellipsis style consistent with existing Korean docs (often `...`).
2) Never change `...` in code, URLs, or CLI examples.

### Preferred translations / glossary

Use the following preferred translations when they apply in documentation prose:

- request (HTTP): 요청
- response (HTTP): 응답
- path operation: 경로 처리