Introduction

This tutorial follows on from the MixTape tutorial, in which we saw how to use Python to:

• collect data from the Spotify API
• work with the repl.it database
• create a web app using Flask

Here we'll go deeper into those topics, and introduce the following:

• Object-oriented programming (creating classes and methods)
• Processing, aggregating and analysing data using pandas
• Data visualisation using chartify (a package based on bokeh)

Approach

We'll work through the additional steps involved in creating the Seeder web app, including how to:

• use query parameters to make more detailed API calls
• automatically fetch new tracks each day based on previous votes
• add repl.it login functionality so users can only vote once each day
• create data visualisations using track features data from Spotify