Zip & Unzip: How Does It Work in Python?

The zip() function takes a number of iterables and aggregates them to a single one by combining the i-th values of each iterable into a tuple. For example, zip together lists [1, 2, 3] and [4, 5, 6] to [(1,4), (2,5), (3,6)]. You can unzip this list of tuples by calling zip(*list) using the unpacking … Read more

What is the Fastest and Easiest Way to Learn Python Programming?

My freelancer course member Pratyush wants to improve learning efficiency in Python. He asked me the question: “how can I accelerate the pace of my problem-solving mind?” Focus first and foremost on reading and writing massive amounts of code. It’s that simple. Maximize the time you are looking at source code, and improvement will come … Read more

Recursion: A Helpful Guide in Python

Recursion is a powerful tool in your coding toolbox. Understanding it is a key skill on your path to mastery. This article gives you a thorough introduction to this important computer science concept. What is Recursion? Stephen Hawking used a concise explanation: “to understand recursion, one must first understand recursion.” Recursion is a concept in … Read more

Python: “0.1 + 0.2 β‰  0.3”. Me: “?”

Python Representation Error: This article explains why floating-point arithmetic can lead you astray in Python. Floating-point arithmetic cannot represent some numbers precisely. While many people think it’s a bug, it’s actually not. Have a look at the following code snippet: In the code snippet, you have assumed that the number 0.1 actually represents the decimal … Read more