Lesson 4: Loops

Often in computer science we need to do the same thing many times. Instead of writing code 100 times, we use a Loop.

The most common is the for loop.

The For Loop

Repeats a block of code for every item in a list or for a number of times.

for i in range(5):
    print("Lap number", i)

Your Objective

Use a for loop to count from 0 to 4.

  1. The code is already partially set up.
  2. Click "Run" to see how fast the computer counts!
  3. Try changing the number inside range() from 5 to 10.
main.py
Initializing Python Environment...