Day 4: Advanced Python Data Structures and Functions

Tuples vs. Lists: Immutability of tuples, list modification capabilities.
Sets: Unique elements, adding/updating elements, set operations.
Unpacking Techniques: Skipping items, advanced unpacking with tuples and lists.
Set Comprehension: Filtering and set operations for data handling.
Python Functions: Basic definitions, default parameters, keyword/positional arguments.
Library System Tasks: Adding books, searching by author, book checkout functionality.
Lambda Functions: Introduction, mapping, squaring values, high-order functions.
Sequence Manipulation: Utilizing `map`, `filter`, and sequence functions like `sum`, `max`, `min`.