Book Image

Web App Development Made Simple with Streamlit

By : Rosario Moscato
Book Image

Web App Development Made Simple with Streamlit

By: Rosario Moscato

Overview of this book

This book is a comprehensive guide to the Streamlit open-source Python library and simplifying the process of creating web applications. Through hands-on guidance and realistic examples, you’ll progress from crafting simple to sophisticated web applications from scratch. This book covers everything from understanding Streamlit's central principles, modules, basic features, and widgets to advanced skills such as dealing with databases, hashes, sessions, and multipages. Starting with fundamental concepts like operation systems virtualization, IDEs, development environments, widgets, scripting, and the anatomy of web apps, the initial chapters set the groundwork. You’ll then apply this knowledge to develop some real web apps, gradually advancing to more complex apps, incorporating features like natural language processing (NLP), computer vision, dashboards with interactive charts, file uploading, and much more. The book concludes by delving into the implementation of advanced skills and deployment techniques. By the end of this book, you’ll have transformed into a proficient developer, equipped with advanced skills for handling databases, implementing secure login processes, managing session states, creating multipage applications, and seamlessly deploying them on the cloud.
Table of Contents (23 chapters)
Free Chapter
1
Part 1: Getting Started with Streamlit
5
Part 2: Building a Basic Web App for Essential Streamlit Skills
10
Part 3: Developing Advanced Skills with a Covid-19 Detection Tool
15
Part 4: Advanced Techniques for Secure and Customizable Web Applications

Summary

In this chapter, we started completing the decorations by adding a beautiful picture in the sidebar. The application should always work correctly but giving it a quite beautiful shape is always a good idea.

After decoration, we focused on the first voice of the menu: Text Analysis. Text Analysis is a quite complex section and in order to make it clear, good-looking, and well-performing, we decided to arrange our web application into different sections that cover different topics. The best solution to make this possible is to learn how to use columns and expanders. The Text Analysis section we created has two layers, one for Basic Functions and another for Advanced Features, and by using columns and expanders, we can manage both layers in a very effective and elegant way.

Columns allow us to place everything we want into pillars, while expanders allow us to expand or collapse anything we want to show or hide.

Having good-looking sections and well-arranged topics in...