Add key-value pairs to dictionary Dry Run in PYTHON

Add key-value pairs to dictionary is an interactive PYTHON dry run visualizer from the Dict 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.

Add key-value pairs to dictionary Program Code

# Add key-value pairs to dictionary
contacts = {}
print("Empty contacts:", contacts)

# Adding single key-value pair
contacts["John"] = "123-456-7890"
print("After adding John:", contacts)

# Adding another
contacts["Alice"] = "987-654-3210"
print("After adding Alice:", contacts)

# Adding integer key
contacts[1] = "Emergency"
print("After adding integer key:", contacts)

# Update with multiple pairs using update()
contacts.update({"Bob": "555-123-4567", "Eve": "555-987-6543"})
print("\nAfter update():", contacts)

View the complete Dict programs page.