while...else after a countdown Dry Run in PYTHON

while...else after a countdown is an interactive PYTHON dry run visualizer from the While programs section. Study the source code, then use the execution controls to follow each step, variable update, highlighted line, and console output.

This page provides a browser-based dry run with source-code highlighting, auto-scroll, voice narration controls, and execution output for learning the program step by step.

while...else after a countdown Program Code

# Launch after the countdown completes
seconds = 3

while seconds > 0:
    print(f"Launch in {seconds}")
    seconds -= 1
else:
    print("Lift off!")

View the complete While programs page.