ASCII Christmas Tree with Snow

tree.py

import random, os, sys, time
#Animate some ASCII art (thanks Philip: http://stackoverflow.com/a/2785568/1347629)
def draw_to_screen(content):
    clear_console = 'clear' if os.name == 'posix' else 'CLS'
    os.system(clear_console)
    sys.stdout.write(content)
    sys.stdout.flush()
    time.sleep(0.2)

#Some randomized snow
def tree_background(n):
    result = ""
    for i in range(n):
        if (random.random() < .05):
            result += "*"
        else:
            result += ' '
    return result

#some logic for drawing the tree:
def snow_tree(top, bottom):
    tree = ""
    width = 2*top + 1
    for r in range(top):
        row = tree_background(width)
        row = row[:top-r] + "^"*(2*r+1) + row[top+r:]
        tree = tree + "\n" + row
    for b in range(bottom):
        tree += "\n" + " "*(top-2) + "#"*5 + " "*(top-2)
    return tree+"\n"

#Draw to the screen 50 times
for i in range(50):
    draw_to_screen(snow_tree(10, 3))

#One last clear
draw_to_screen("\n\n")

#To run, save into file and from command line python3 tree.py
#Adjust size of tree to fit