Recursive tree pattern Dry Run in PYTHON

Recursive tree pattern is an interactive PYTHON dry run visualizer from the Patterns 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.

Recursive tree pattern Program Code

def draw_branch(n, spaces):
    if n <= 0: return
    print(" " * spaces + "*" * (2 * n - 1))
    draw_branch(n - 1, spaces + 1)
def tree(height):
    draw_branch(height, 0)
    print(" " * (height - 1) + "|")
tree(3)

View the complete Patterns programs page.