Control Flow

Summary

if/elif/else, for and while loops, and comprehensions control the order code executes in — the backbone of every data-cleaning script and training loop you'll write.

• 1Rewrite a few nested for-loops as list comprehensions to build the habit.
• 2Practice loop control (`break`, `continue`, `else` on loops) on small exercises.
• 3Trace through a training-loop skeleton and identify each control-flow construct.