| 9. 3. Set |
| 9. 3. 1. | Set operations | | |
| 9. 3. 2. | How to Create and Assign Set Types | | |
| 9. 3. 3. | How to Access Values in Sets | | |
| 9. 3. 4. | How to Update Sets | | |
| 9. 3. 5. | Membership (in, not in) | | |
| 9. 3. 6. | Set Equality/Inequality | | |
| 9. 3. 7. | Subset Of/Superset Of | | |
| 9. 3. 8. | Union ( | ) | | |
| 9. 3. 9. | Intersection ( & ) | | |
| 9. 3. 10. | Difference/Relative Complement ( - ) | | |
| 9. 3. 11. | Symmetric Difference ( ^ ) | | |
| 9. 3. 12. | Mixed Set Type Operations | | |
| 9. 3. 13. | (Union) Update ( | = ) | | |
| 9. 3. 14. | Retention/Intersection Update ( &= ) | | |
| 9. 3. 15. | Difference Update ( - = ) | | |
| 9. 3. 16. | Symmetric Difference Update ( ^ = ) | | |
| 9. 3. 17. | len() returns the number of elements | | |
| 9. 3. 18. | set() and frozenset() functions generate mutable and immutable sets, respectively. | | |