Flask Blueprints Год издания: 2015 Автор: Joel Perras Жанр или тематика: Веб-программирование Издательство: Packt Publishing ISBN: 9781784394783 Язык: Английский Формат: PDF/EPUB/MOBI Качество: Издательский макет или текст (eBook) Интерактивное оглавление: Да Количество страниц: 198 Описание: Flask is a small but powerful web development framework for Python. Though Flask is termed a micro-framework, it is no way lacking in functionality; there are many extensions available to Flask which helps it to function at the same level as other large frameworks such as Django and Ruby on Rails. This book will demonstrate how to develop a series of web application projects with the Python web micro-framework, and leverage extensions and external Python libraries and APIs to extend the development of a variety of larger and more complex web applications. The book will start by explaining Python’s Virtualenv library and how to create and switch between multiple virtual environments. You’ll first build an SQL database-backed application, which will use Flask-WTF, Flask-SQLAlchemy, Jinja templates, and other methods. Next you’ll move on to a timeline application, built using concepts including pytest-Flask, the Blinker package, data modelling for user timelines, exception handling, and creating and organizing CLI tools. Moving on, you’ll discover how to implement a photo timeline application where you’ll explore topics such as writing and running celery tasks, API error handling and testing, and Werkzeug middlewares. Finally, the book walks you through creating an application which fetches data from GitHub and stores it locally. You will also learn how to install and configure Flask-Click extension. What You Will Learn - Use the virtualenv Python package to effectively isolate your development environments - Convert a simple one-file Flask application into a more full-fledged multi-package application - Integrate Flask-Login for simple user authentication, Flask-WTF for forms, and Flask-SQLAlchemy for database interactions - Explore URL routing and dispatching in a blueprint structured application - Create your own signals and consume them within your application - Learn to leverage Werkzeug, the WSGI library that powers much of Flask - Implement custom exceptions for handling non-20x response codes - Write your own CLI tools for administrative and development tasks of your Flask application using Flask-Script/Click - Build your Flask extensions to encapsulate reusable behaviors across your applications - Integrate your application with open source JavaScript-based graphing libraries to create simple data visualizations
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Оглавление
Table of Contents 1: Starting on the Right Foot – Using Virtualenv 2: Small to Big – Growing the Flask Application Structure 3: Snap – the Code Snippet Sharing Application 4: Socializer – the Testable Timeline 5: Shutterbug, the Photo Stream API 6: Hublot – Flask CLI Tools 7: Dinnerly – Recipe Sharing
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