blocky-bin.py

#-*-coding:utf8;-*-
#qpy:3
#qpy:console

from random import randint

def bin(n, width):
  return blockify(("{:0"+str(width)+"b}").format(n))

def blockify(s):
  return '['+s.replace('0', ' ').replace('1', '#')+']'

width = 10
while True:
  print("Enter a number to convert, r for a random number, e to exit, or wN to change width to N.")
  i = raw_input("> ")
  if i == '':
    continue
  elif i[0] == 'e':
    break
  elif i[0] == 'w':
    try:
      nw = int(i[1:])
    except InvalidArgumentException:
      nw = -1
    if nw > 0:
      width = nw
      print("Width set to {}.".format(width))
    else:
      print("Please enter a positive integer.")
    continue
  elif i[0] == 'r':
    n = randint(0, 2**width)
  else:
    try:
      ni = int(i)
    except InvalidArgumentException:
      print("Please enter a valid integer.")
      continue
    n = ni % 2**width
  print("Input: {}".format(n))
  print("blockified:\n{}".format(bin(n, width)))