Conventions

In this book, you will find a number of styles of text that distinguish between different kinds of information. Here are some examples of these styles, and an explanation of their meaning.

Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "Enter the new project folder and create the main.py file".

A block of code is set as follows:

# coding:utf-8
from flask import Flask
app = Flask(__name__)

@app.route("/")
def hello():
    return "Hello World!"

if __name__ == "__main__":
    app.run()

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

sudo pip install virtualenvwrapper

New terms and important words are shown in bold. Words that you see on the screen, in menus or dialog boxes for example, appear in the text like this: "Have you ever imagined what happens when you fill in a form on a website and click on that fancy Send button at the end of it?".

Note

Warnings or important notes appear in a box like this.

Tip

Tips and tricks appear like this.