Python Loops Explained: How For and While Loops Eliminate Repetitive Code

A tutorial published on DEV Community introduces Python's for and while loops as tools for automating repetitive programming tasks. The for loop iterates over a sequence — such as a list, string, or range — executing a block of code for each item until the sequence is exhausted. Practical examples demonstrate looping over numbered ranges and lists, as well as combining loops with conditional if statements to filter data. The while loop is also introduced as an alternative that runs continuously as long as a specified condition remains true, making it useful when the number of iterations is not known in advance. Together, these constructs allow programmers to process large datasets efficiently without duplicating code.