Create a Set and Count Its Items Dry Run in PYTHON

Create a Set and Count Its Items is an interactive PYTHON dry run visualizer from the Datatypes 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.

Create a Set and Count Its Items Program Code

numbers = {10, 20, 30}
print("Set size:", len(numbers))
print("Contains 20:", 20 in numbers)

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