Python Basics · Getting Started · Lesson 2 of 36
Comments and Readability
Concept
Comments and Readability
Lines starting with # are comments, ignored by Python but useful for explaining your code to humans.
Python has no separate multi-line comment syntax, though a triple-quoted string not assigned to anything is often used the same way.
- Explain the core idea behind Comments and Readability.
- Predict output before running a change.
- Test one realistic and one unusual input.
- Use the result to make the next decision.
- 1. Read one concept.
- 2. Change the example.
- 3. Run, compare, and explain.
- 4. Complete the challenge below.
Self-check before continuing
Without looking at the example, describe what changes when you modify one input in Comments and Readability. Then reopen the editor and prove your explanation with a small test.
You are ready to continue when you can predict, test, and explain the result.
Your turn
Add a comment above one line of code explaining what it does.
Ask about this lesson or your next move. The guide explains the path without taking the work away from you.
Ready for the next lesson?
Mark this lesson complete when you have finished the exercise.
Console