subgraph venv2[.venv]
            harry-3[harry v3]
        end
    end
    stone-project ~~~ azkaban-project
```

## What Does Activating a Virtual Environment Mean { #what-does-activating-a-virtual-environment-mean }

When you activate a virtual environment, for example with:

//// tab | Linux, macOS

<div class="termy">

```console

/// note

If you are a Python expert, and you already know everything about type hints, skip to the next chapter.

///

## Motivation { #motivation }

Let's start with a simple example:

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

Calling this program outputs:

```
John Doe
```

The function does the following:

tricky to configure. As a shortcut, you can paste [OkHttpDebugLogging.kt]. Then enable debug logging
for whichever features you need:

```
OkHttpDebugLogging.enableHttp2()
OkHttpDebugLogging.enableTaskRunner()
```

### Activating on Android

```
$ adb shell setprop log.tag.okhttp.Http2 DEBUG
$ adb shell setprop log.tag.okhttp.TaskRunner DEBUG
$ adb logcat '*:E' 'okhttp.Http2:D' 'okhttp.TaskRunner:D'
```

### HTTP/2 Frame Logging

/// note | Примечание

Если вы являетесь экспертом в Python и уже знаете всё о подсказках типов, переходите к следующей главе.

///

## Мотивация { #motivation }

Давайте начнем с простого примера:

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

Вызов этой программы выводит:

```
John Doe
```

Функция делает следующее:

MockWebServer
=============

A scriptable web server for testing HTTP clients


### Motivation

This library makes it easy to test that your app Does The Right Thing when it
makes HTTP and HTTPS calls. It lets you specify which responses to return and
then verify that requests were made as expected.

Because it exercises your full HTTP stack, you can be confident that you're

> NOTE: Server side replication is supported for idempotent versions on delete marked objects.

### Motivation

/// note | Nota

Se você é um especialista em Python e já sabe tudo sobre type hints, pule para o próximo capítulo.

///

## Motivação { #motivation }

Vamos começar com um exemplo simples:

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

A chamada deste programa gera:

```
John Doe
```

A função faz o seguinte:

/// note | Nota

Si eres un experto en Python, y ya sabes todo sobre las anotaciones de tipos, salta al siguiente capítulo.

///

## Motivación { #motivation }

Comencemos con un ejemplo simple:

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

Llamar a este programa genera:

```
John Doe
```

La función hace lo siguiente:

        subgraph venv2[.venv]
            harry-3[harry v3]
        end
    end
    stone-project ~~~ azkaban-project
```

## Что означает активация виртуального окружения { #what-does-activating-a-virtual-environment-mean }

Когда вы активируете виртуальное окружение, например так:

//// tab | Linux, macOS

<div class="termy">

```console
$ source .venv/bin/activate
```

### Virtual environment

Follow the instructions to create and activate a [virtual environment](virtual-environments.md){.internal-link target=_blank} for the internal code of `fastapi`.

### Install requirements

After activating the environment, install the required packages:

//// tab | `pip`

<div class="termy">

```console
$ pip install -r requirements.txt

---> 100%
```

</div>

////

//// tab | `uv`