Streamlit is not just for Data Science, you can create excellent general-purpose websites, too. Here we use the NASA Open API and show how to keep your API key a secret. — This is a bit of fun, really, but it illustrates how easy it is to construct a general purpose web site in Streamlit and how to keep environment variables away from prying eyes. The program is not complex but we’ll see how to use NASA Open APIs and secrets management…

We present a method to programmatically create a grid layout in Streamlit with a World population data demo app — The good folk at Streamlit have given us a lot of ways of displaying data and charts, and have also provided several methods for laying out a data science application. But there is no native grid layout. Luckily, this is easily solved and we shall see how we can construct…

To earn an income from your writing you need to have something to sell. Writing and publishing an e-book is straightforward and can be financially rewarding. — Blogging or publishing articles on Medium is a great way to make some cash but I doubt that many writers are making a good living out of it. That’s not to say that you shouldn’t do it but, as a freelancer, you probably need more than that in your portfolio…

Media from the Apollo 11 Moon landing as a Streamlit app — In the first part of this series, Getting Started, we saw how to set up the Streamlit development environment and how easy it is to create a simple web app using different types of text. This time we have a very brief look at how we can enhance an app…

Which tools do you need and how to use them; and how to create your first interactive web app in Python Streamlit is a framework for creating simple and elegant web applications in pure Python. It’s mainly aimed at Data Scientists and Analysts but can also be used as a general-purpose framework for creating web applications. No knowledge of HTML or Javascript is needed. …

PyScript lets you create web apps in Python without the need for a server. Flask is a Python web app framework for making server-based apps. We write the same simple app using both. — PyScript is Python in the browser and promises a new way of writing web applications. It’s very much at the alpha stage at the moment but is already a usable system. But do we need a new way? It’s true that I can create a fully functioning web app in…

Wikipedia tables are designed for people to look at, not for processing with computers, but with some help from Python and Pandas we can sort them out. We use the results of the 2021 Formula 1 season as an example. — Wikipedia is a fantastic resource but doesn’t particularly lend itself to use by data analysts. The data in the articles are designed to be looked at by people not processed by a computer and so it doesn’t necessarily provide an immediately usable resource. But Python and Pandas give us the…

Goodbye XMLHttpRequest, hello fetch, async, and await — AJAX is a set of techniques to update the data on a web page without refreshing the whole page. This is achieved by requesting data from a server in the background and updating parts of the web page with that data. AJAX has been a bit of a misnomer for…

What will happen to JavaScript now that there’s a new scripting language available in the browser — Will future web apps all be written in PyScript? Python has all the attributes of a modern programming language and an enormous number of libraries that support a vast number of application types, so given the choice, why would you use Javascript? Well, just hold on a minute. Python in…