Book Image

Building Data Science Applications with FastAPI - Second Edition

By : François Voron
3 (1)
Book Image

Building Data Science Applications with FastAPI - Second Edition

3 (1)
By: François Voron

Overview of this book

Building Data Science Applications with FastAPI is the go-to resource for creating efficient and dependable data science API backends. This second edition incorporates the latest Python and FastAPI advancements, along with two new AI projects – a real-time object detection system and a text-to-image generation platform using Stable Diffusion. The book starts with the basics of FastAPI and modern Python programming. You'll grasp FastAPI's robust dependency injection system, which facilitates seamless database communication, authentication implementation, and ML model integration. As you progress, you'll learn testing and deployment best practices, guaranteeing high-quality, resilient applications. Throughout the book, you'll build data science applications using FastAPI with the help of projects covering common AI use cases, such as object detection and text-to-image generation. These hands-on experiences will deepen your understanding of using FastAPI in real-world scenarios. By the end of this book, you'll be well equipped to maintain, design, and monitor applications to meet the highest programming standards using FastAPI, empowering you to create fast and reliable data science API backends with ease while keeping up with the latest advancements.
Table of Contents (21 chapters)
1
Part 1: Introduction to Python and FastAPI
7
Part 2: Building and Deploying a Complete Web Backend with FastAPI
13
Part 3: Building Resilient and Distributed Data Science Systems with FastAPI

Manipulating arrays with NumPy and pandas

As we said in the introduction, numerous Python libraries have been developed to help with common data science tasks. The most fundamental ones are probably NumPy and pandas. Their goal is to provide a set of tools to manipulate a big set of data in an efficient way, much more than what we could actually achieve with standard Python, and we’ll show how and why in this section. NumPy and pandas are at the heart of most data science applications in Python; knowing about them is therefore the first step on your journey into Python for data science.

Before starting to use them, let’s explain why such libraries are needed. In Chapter 2, Python Programming Specificities, we stated that Python is a dynamically typed language. This means that the interpreter automatically detects the type of a variable at runtime, and this type can even change throughout the program. For example, you can do something like this in Python:

$ python...