[问题求助] Python无法做到中文匹配替换，英语字母没问题

#!/usr/bin/python
# -*- coding: UTF-8 -*-
 
import re
 
str = '''TITLE "Leslie Cheung 张国荣 LPCD45"
PERFORMER "张国荣"
REM DATE "2008"
REM DISCID E3103E10
FILE "Leslie Cheung 张国荣 LPCD45.flac" WAVE
  TRACK 01 AUDIO
    TITLE "奔向未来日子"
    PERFORMER "张国荣"
    REM COMMENT "[www.pt80.net]"
    INDEX 01 00:00:00
  TRACK 02 AUDIO
    TITLE "由零开始"
    PERFORMER "张国荣"
    REM COMMENT "[www.pt80.net]"
    INDEX 00 04:29:50
    INDEX 01 04:34:50
  TRACK 03 AUDIO
    TITLE "这是爱"
    PERFORMER "张国荣"
    REM COMMENT "[www.pt80.net]"
    INDEX 00 08:41:70
    INDEX 01 08:46:70
  TRACK 04 AUDIO
    TITLE "似水流年"
    PERFORMER "张国荣"
    REM COMMENT "[www.pt80.net]"
    INDEX 00 12:28:42
    INDEX 01 12:33:42
  TRACK 05 AUDIO
    TITLE "情难自控"
    PERFORMER "张国荣"
    REM COMMENT "[www.pt80.net]"
    INDEX 00 16:50:17
    INDEX 01 16:55:17
  TRACK 06 AUDIO
    TITLE "你在何地"
    PERFORMER "张国荣"
    REM COMMENT "[www.pt80.net]"
    INDEX 00 21:09:35
    INDEX 01 21:14:35
  TRACK 07 AUDIO
    TITLE "烈火灯蛾"
    PERFORMER "张国荣"
    REM COMMENT "[www.pt80.net]"
    INDEX 00 26:16:41
    INDEX 01 26:21:41
  TRACK 08 AUDIO
    TITLE "浓情"
    PERFORMER "张国荣"
    REM COMMENT "[www.pt80.net]"
    INDEX 00 30:37:65
    INDEX 01 30:42:65
  TRACK 09 AUDIO
    TITLE "想你"
    PERFORMER "张国荣"
    REM COMMENT "[www.pt80.net]"
    INDEX 00 34:16:59
    INDEX 01 34:21:59
  TRACK 10 AUDIO
    TITLE "雪中情"
    PERFORMER "张国荣"
    REM COMMENT "[www.pt80.net]"
    INDEX 00 39:16:50
    INDEX 01 39:21:50
  TRACK 11 AUDIO
    TITLE "风再起时"
    PERFORMER "张国荣"
    REM COMMENT "[www.pt80.net]"
    INDEX 00 43:22:08
    INDEX 01 43:27:08
  TRACK 12 AUDIO
    TITLE "沉默是金"
    PERFORMER "张国荣"
    REM COMMENT "[www.pt80.net]"
    INDEX 00 47:55:56
    INDEX 01 48:00:56
  TRACK 13 AUDIO
    TITLE "共同渡过"
    PERFORMER "张国荣"
    REM COMMENT "[www.pt80.net]"
    INDEX 00 52:07:62
    INDEX 01 52:12:62
  TRACK 14 AUDIO
    TITLE "寂寞夜晚"
    PERFORMER "张国荣"
    REM COMMENT "[www.pt80.net]"
    INDEX 00 56:35:65
    INDEX 01 56:40:65
  TRACK 15 AUDIO
    TITLE "无需要太多"
    PERFORMER "张国荣"
    REM COMMENT "[www.pt80.net]"
    INDEX 00 61:05:07
    INDEX 01 61:10:07
  TRACK 16 AUDIO
    TITLE "倩女幽魂"
    PERFORMER "张国荣"
    REM COMMENT "[www.pt80.net]"
    INDEX 00 65:36:17
    INDEX 01 65:41:16'''
print re.sub('\n    REM COMMENT "\[www.pt80.net\]"','',str)COPY