Windowsのconsoleでutf-8 + ansi colorを出力したいときのラッパー

#!/usr/bin/env python
# -*- coding: utf-8 -*-
import sys
import subprocess

reload(sys) 
sys.setdefaultencoding("utf-16")

HAS_COLORAMA = True

try:
  import colorama
  colorama.init()
except:
  HAS_COLORAMA = False

p = subprocess.Popen(sys.argv[1:], stdout=subprocess.PIPE)

def decode_ansi(s):
  assert s[0] == '[', "string does not start with control sequence"
  for i in range(1, len(s)):
    if s[i] == 'm':
      break

  return s[i+1:], s[1:i].split(';')

for line in p.stdout:
  substrs = line.split(chr(27))
  sys.stdout.write(substrs[0].decode('utf-8'))
  for s in substrs[1:]:
    s, cs = decode_ansi(s)
    if HAS_COLORAMA:
      sys.stdout.write("\033[%sm" % ';'.join(cs))
    sys.stdout.write(s.decode('utf-8'))