Method 9: Swap using list pop and append Dry Run in PYTHON

Method 9: Swap using list pop and append is an interactive PYTHON dry run visualizer from the Io 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.

Method 9: Swap using list pop and append Program Code

# Method 9: Using list pop and append
a = int(input("Enter first number: "))
b = int(input("Enter second number: "))

print(f"\nBefore swap: a = {a}, b = {b}")

# Create list with values
lst = [a, b]

# Using pop and append to swap
a = lst.pop()    # removes and returns last element (b)
b = lst.pop()    # removes and returns remaining element (a)

print(f"After swap: a = {a}, b = {b}")

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