Flask Web Development

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Flask Web Development: Developing Web Applications with Python by Miguel Grinberg

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Flask stands out from other frameworks because it lets developers take the driver’s seat and have full creative control of their applications. Maybe you have heard the phrase “fighting the framework” before. This happens with most frameworks when you decide to solve a problem with a solution that isn’t the official one. It could be that you want to use a different database engine, or maybe a different method of authenticating users. Deviating from the path set by the framework’s developers will give you lots of headaches.


Flask is not like that. Do you like relational databases? Great. Flask supports them all. Maybe you prefer a NoSQL database? No problem at all. Flask works with them too. Want to use your own homegrown database engine? Don’t need a database at all? Still fine. With Flask you can choose the components of your application or even write your own if that is what you want. No questions asked!


The key to this freedom is that Flask was designed from the start to be extended. It comes with a robust core that includes the basic functionality that all web applications need and expects the rest to be provided by some of the many third-party extensions in the ecosystem and, of course, by you.


In this book I present my workflow for developing web applications with Flask. I don’t claim to have the only true way to build applications with this framework. You should take my choices as recommendations and not as gospel.


Most software development books provide small and focused code examples that demonstrate the different features of the target technology in isolation, leaving the “glue” code that is necessary to transform these different features into a fully working applications to be figured out by the reader. I take a completely different approach. All the examples I present are part of a single application that starts out very simple and is expanded in each successive chapter. This application begins life with just a few lines of code and ends as a nicely featured blogging and social networking application.


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