Repeating with range()

This Block shows you how to combine Python’s for loops with range() for controlled repetition. You will generate number sequences, repeat actions a fixed number of times, choose starting and stopping points, change the step size, and create countdowns.

What you will learn:

• Repeat code with range(stop)
• Choose boundaries with range(start, stop)
• Control jumps with range(start, stop, step)
• Count backward using a negative step
• Remember why the stopping number is never included
• Choose between looping through existing items and generating numbers with range()

Leave with a clear mental model for reading ranges, avoiding off-by-one mistakes, and letting Python handle repetitive work for you.