Python Made Easy: A Beginner’s Guide to Coding, Data Structures, and Practical Applications

© The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature 2026

M. GählerPython Made Easyhttps://doi.org/10.1007/979-8-8688-2133-2_4

4. Loops and If Statements

Marco Gähler¹  

(1)

Zürich, Zürich, Switzerland

 

Loops and if statements are two of the most important concepts in software development. They allow the code to not only be executed linearly from top to bottom but also to branch and repeat. For and if statements control the flow of a program.

Loops

The best programmers are lazy. They only do something when it is required. Without a clear goal in mind, they do nothing at all. And if something has to be done multiple times, they don’t write the code multiple times (and no, they don’t copy it either). They write a function ...