Find length of list (number of elements) Dry Run in PYTHON

Find length of list (number of elements) is an interactive PYTHON dry run visualizer from the Lists 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.

Find length of list (number of elements) Program Code

# Find length of list using len() function
numbers = [10, 20, 30, 40, 50, 60, 70]
length = len(numbers)
print(f"List: {numbers}")
print(f"Length of list: {length}")

# Manual counting using loop
count = 0
for item in numbers:
    count += 1
print(f"Manual count: {count}")

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