# Chris

Chris is the founder of the programming education company FINXTER, author of the Coffee Break Python series of self-published books, the popular programming book Python One-Liners (NoStarch 2020), a doctorate computer scientist, and owner of one of the top 10 Python blogs worldwide. His research interests include graph theory and distributed systems.

## The Mathematics of Wealth

This is the free lesson “Roadmap towards financial freedom” of the “scaling your coding business beyond six figures” of our best-selling Finxter Freelance Developer Course. You can find the PDF slides here. Feel free to watch the full video: Who is this for? If you’re interested in reaching the next level of your tech education […]

## Python Crash Course 5: Object Orientation

Access the full Python Crash Course and hundreds of additional coding videos and courses, including your personalized course certificates, on the Finxter Computer Science Academy!

## Python Crash Course 4: Python Tricks

Access the full Python Crash Course and hundreds of additional coding videos and courses, including your personalized course certificates, on the Finxter Computer Science Academy!

## Python Crash Course 3: Complex Data Structures

Access the full Python Crash Course and hundreds of additional coding videos and courses, including your personalized course certificates, on the Finxter Computer Science Academy!

## Python Crash Course 2: Basic Data Structures

Access the full Python Crash Course and hundreds of additional coding videos and courses, including your personalized course certificates, on the Finxter Computer Science Academy!

## Python Crash Course 1: Keywords

Access the full Python Crash Course and hundreds of additional coding videos and courses, including your personalized course certificates, on the Finxter Computer Science Academy!

## Google Interview – Find the k-th Largest Element in an Unsorted List

Do you train for your upcoming coding interview? This question was asked by Google as reported in multiple occasions by programmers all around the world. Can you solve it optimally? Let’s dive into the problem first. Problem Formulation Given an integer array or Python list nums and an integer value k. Find and return the

## Iterators, Iterables and Itertools

Iterables and iterators are everywhere in Python. We usually aren’t aware of the iterators because the syntax of python hides them from us. Almost every time we manipulate a sequence type (strings, lists, tuples, sets, arrays, etc.), we’re using an iterator behind the scenes. An iterable represents a sequence of values each of which is