Book Image

Learning Python

By : Romano
Book Image

Learning Python

By: Romano

Overview of this book

Learning Python has a dynamic and varied nature. It reads easily and lays a good foundation for those who are interested in digging deeper. It has a practical and example-oriented approach through which both the introductory and the advanced topics are explained. Starting with the fundamentals of programming and Python, it ends by exploring very different topics, like GUIs, web apps and data science. The book takes you all the way to creating a fully fledged application. The book begins by exploring the essentials of programming, data structures and teaches you how to manipulate them. It then moves on to controlling the flow of a program and writing reusable and error proof code. You will then explore different programming paradigms that will allow you to find the best approach to any situation, and also learn how to perform performance optimization as well as effective debugging. Throughout, the book steers you through the various types of applications, and it concludes with a complete mini website built upon all the concepts that you learned.
Table of Contents (14 chapters)
13
Index

Implementing the Falcon API

The structure of the Falcon project we're about to code is nowhere near as extended as the interface one. We'll code five files altogether. In your ch12 folder, create a new one called pwdapi. This is its final structure:

$ tree -A pwdapi/
pwdapi/
├── core
│   ├── handlers.py
│   └── passwords.py
├── main.py
└── tests
    └── test_core
        ├── test_handlers.py
        └── test_passwords.py

The API was all coded using TDD, so we're also going to explore the tests. However, I think it's going to be easier for you to understand the tests if you first see the code, so we're going to start with that.

The main application

This is the code for the Falcon application:

main.py

import falcon
from core.handlers import (
    PasswordValidatorHandler,
    PasswordGeneratorHandler...