LessonAbout 4 min
Chapter 1 · Lesson 3 of 5
03. Notes for people
Lines that start with # are comments: notes for people reading your code, which Python skips.
Code is read by people as well as computers: your teacher, your team, or you next week. A comment is a note for them. It starts with #, and Python skips everything from the # to the end of the line.
Python
# Greets the classprint("Good morning!") # shown first# print("This line is switched off")print("Let's begin.")It shows
Good morning! Let's begin.
Your turn
1Steps
- 1This program prints one line too many. Don't delete anything: turn the line that prints
Oops!into a comment, so the program prints just the two other lines.
Starting code
The editor starts empty. Copy this into it to begin, or write your own from scratch.
Python
print("Step 1: open the box")print("Oops!")print("Step 2: take out the robot")2Expected output
It should show
Step 1: open the box Step 2: take out the robot
3Hints
Stuck? Open one hint at a time: each gives a bit more help.
Hint 1
A comment starts with one special character, and Python skips the rest of that line.
Hint 2
Put that character at the very start of the line with Oops! on it.
Hint 3
Make the middle line: # print("Oops!")