Fetch data from a public API with Python

Use this guide when you know basic Python and want to pull live data from a web service instead of copying it by hand. You need Python 3 installed, a project folder with a virtual environment and the documentation page for the API you want to use.

Step by step

1. Pick an API and read its rules first

   Start with a free public feed that needs no key, for example GOV.UK publishes UK bank holiday dates as a JSON feed, which is ideal for practice. Before writing code, read the API documentation for three things: the exact endpoint address, whether it needs a key, and any usage limits or terms. Note the limit in a comment at the top of your script so you respect it later.