Conventions used

There are a number of text conventions used throughout this book.

Code in text: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: “However, since Python version 3.3, a tool named virtualenv was integrated into Python’s standard library.”

A block of code is set as follows:

client = redis.Redis(host='127.0.0.1', port=6379,
username='<YOUR_USERNAME>',
password='<YOUR_PASSWORD>')
client.set("Redis", "Stack")
print(client.get("Redis"))

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

<dependency>
    <groupId>redis.clients</groupId>
    <artifactId>jedis</artifactId>
    <version>5.0.0</version>
</dependency>

Any command-line input or output is written as follows:

$ apt install python3.9-venv

Bold: Indicates a new term, an important word, or words that you see onscreen. For instance, words in menus or dialog boxes appear in bold. Here is an example: “The application prompts you first to establish a connection with a Redis database. Start this process by clicking on the ADD REDIS DATABASE button.”

Tips or important notes

Appear like this.