Python - 7

Python - 7: Loops

Loops repeat code without making you write the same lines again and again.

Your challenge: Use a for loop to repeat a message, then use another loop to print numbers.

Repeat code with for

A loop like: for i in range(5): runs the indented code five times.

The variable i changes each time through the loop.

Use range()

range(5) produces: 0, 1, 2, 3, 4

So this code prints those numbers: for number in range(5):

Indentation matters

Just like an if statement, the code inside a loop must be indented.

Try it: Change range(5) to range(10) and see how many times the loop runs.

Good Python habit: Use a meaningful loop variable such as number when the value has a clear purpose.

for i in range(5):
    print("Hello!")

for number in range(5):
    print(number)

for number in range(3):
    print("Python is fun!")