import curses   # probably won't run on MS Windows
import time
import string
import random

nlet = len (string.letters)   # it's 52 i swear
fieldx = 80
fieldy = 23  # will crash if the terminal window is resized
sleeptime = 0.04
charrep = 11

def randomch ():
	c = string.letters [random.randint(0, nlet - 1)]
	x = random.randint (0, fieldx - 1)
	y = random.randint (0, fieldy - 1)
	screen.addch (y, x, c)

def decurse ():
	curses.echo ()
	curses.endwin ()

# --- BEGIN ---

screen = curses.initscr ()
curses.noecho ()
curses.curs_set (0)

try:
	while True:
		for j in range (1, charrep):
			randomch ()
		screen.refresh ()
		time.sleep (sleeptime)
except KeyboardInterrupt:
	pass
finally:
	decurse ()
	print "^C"