Module 5: Processing large datasets and automating repetitive workflows.
Most business data (Sales, User Lists, Logistics) is stored in CSV files. Python's built-in csv module allows us to read thousands of rows in seconds.
Lesson 42: Math & Stats — Using the statistics module for averages and trends.
Lesson 43: List Filtering — Using filter() and map() to clean messy data.
Lesson 44: Introduction to NumPy — Understanding high-speed numerical arrays.
Lesson 45: Introduction to Pandas — The industry standard for Dataframes.
Create a script that reads a list of transactions, calculates the total revenue, and identifies the most expensive item sold.