Python Programming Blueprints

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Dedication

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Preface

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What this book covers

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Implementing the Weather Application

Setting up the environment

Core functionality

Loading parsers dynamically

Creating the application's model

Fetching data from the weather website

Getting the user's input with ArgumentParser

Creating the parser

Getting today's weather forecast

Adding helper methods

Implementing today's weather forecast

Getting five- and ten-day weather forecasts

Getting the weekend weather forecast

Summary

Creating a Remote-Control Application with Spotify

Setting up the environment

Creating a Spotify app

The application's configuration

Creating a configuration file

Implementing a configuration file reader

Authenticating with Spotify's web API

Implementing the client credentials flow

Implementing the authorization code flow

Authorizing our application with authorization code flow

Querying Spotify's web API

Creating the player

Adding menus for albums and track selection

Implementing the menu panel

Creating the DataManager class

Time to listen to music!

Summary

Casting Votes on Twitter

Setting up the environment

Creating a Twitter application

Adding the configuration file

Performing authentication

Creating the Flask application

Creating the application routes

Building the Twitter voting application

Enhancing our code

Summary

Exchange Rates and the Currency Conversion Tool

Setting up the environment

Creating the API wrapper

Adding the database helper class

Creating the command line parser

Creating the currency enumeration

Creating the command line parser

Basic validation

Adding the application's entry point

Testing our application

Summary

Building a Web Messenger with Microservices

TempMessenger Goals

Requirements

What is Nameko?

RPCs

How Nameko uses AMQP

RabbitMQ

Starting a RabbitMQ container

Installing Python requirements

Creating your first Nameko microservice

Making a call to our service

Unit-testing a Nameko microservice

Exposing HTTP entrypoints

Integration testing Nameko microservices

Storing messages

An introduction to Redis

Starting a Redis container

Installing the Python Redis client

Using Redis

Nameko Dependency Providers

Adding a Redis Dependency Provider

Designing the Client

Creating the Dependency Provider

Creating our Message Service

Putting it all together

Saving messages

Adding a save message method to our Redis client

Adding a save message RPC

Retrieving all messages

Adding a get all messages method to our Redis client