In this chapter, we've compared the monolithic versus microservice approach to building web applications, and it became apparent that it's not a binary world where you have to pick one model on day one and stick with it.

You should see microservices as an improvement of an application that started its life as a monolith. As the project matures, parts of the service logic should migrate into microservices. It is a useful approach as we've learned in this chapter, but it should be done carefully to avoid falling into some common traps.

Another important lesson is that Python is considered to be one of the best languages to write web applications, and therefore, microservices--for the same reasons, it's a language of choice in other areas, and also because it provides tons of mature frameworks and packages to do the work.

We've rapidly looked through the chapter at several frameworks, both synchronous and asynchronous, and for the rest of the book, we'll be using Flask.

The next chapter will introduce this fantastic framework, and if you are not familiar with it, you will probably love it.

Lastly, Python is a slow language, and that can be a problem in very specific cases. But knowing what makes it slow, and the different solutions to avoid this issue will usually be enough to make that problem not relevant.