PYTHON CORE · LESSON 08

Repeats

for loop · about 12 minutes

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STEP 1

Don't write the same thing many times.

The for loop repeats the command. range(3) will give the number 0, 1, 2 – just three steps.

for step in range(3):
    print(step)

✦ The line within the loop starts with four spaces.

STEP 2

In range(2, 5), the first number is the beginning. The number 5 is the boundary, the loop will reach it, but 5 itself will not take.

for number in range(2, 5):
    print(number)

✦ It's going to be 2, 3, 4.

IN-CLASS PRACTICE

Dial the loop. Find colon and indentation in front of print.

for count in range(3):
    print(count)

HOMEWORK

Using the for and range loop, output the numbers 1, 2, 3. Name the loop variable step.

The answer is hidden. Use similar examples from the lesson notes.