Control Flows: Basic to Advance

Control flow is the “brain” of your script, determining which chunks of code run based on specific conditions.

🚦 Basic Control Flow

Learn how to use if, elif, and else to guide your data logic.

• Resource: Python If…Else (W3Schools)
• Resource: Python Loops (Real Python)

🔄 Advanced Iteration

In Data Engineering, we often deal with large datasets where performance matters.

• List Comprehensions: A concise way to create lists.
  • Guide to List Comprehensions
• Error Handling: Using try...except to prevent pipelines from crashing when meeting bad data.
  • Exceptions in Python

🧪 Quick Challenge

Write a Nested Loop that flattens a list of lists (a common task when dealing with nested JSON data).

• Input: [[1, 2], [3, 4], [5, 6]]
• Output: [1, 2, 3, 4, 5, 6]