This Python tutorial explains how functions work and why they are essential for writing reusable, organized code. The lesson begins with creating a basic function using the def keyword, calling it, ...

If you want to write Python code that takes advantage of the language's newest and most powerful features, here are four areas to explore. Although Python had its 30-year anniversary in 2021, the ...

Learning how to define a function in Python is one of the most important steps to mastering the language. Functions are blocks of code that perform a specific task and can be “called” from any point ...

4 keys to writing modern Python Here’s what you need to know (and do) if you want to write Python like it’s 2025, not 2005. How to use uv, the super-fast Python package installer Last but not least, ...

Read an excerpt from the 4th Edition of the book Python Essential Reference by David Beazley. Excerpt from Python Essential Reference, 4th Edition. Substantial programs are broken up into functions ...