Python 模块chardet安装过程(windows环境)

　　最近需要一个txt文件的批量转码功能，在网上找到一段批量处理java源文件的py程序如下：

#-*- coding: utf-8 -*-

import codecs
import os
import shutil
import re
import chardet

def convert_encoding(filename, target_encoding):
    # Backup the origin file.
    shutil.copyfile(filename, filename + '.bak')

    # convert file from the source encoding to target encoding
    content = codecs.open(filename, 'r').read()
    source_encoding = chardet.detect(content)['encoding']
    print source_encoding, filename
    content = content.decode(source_encoding) #.encode(source_encoding)
    codecs.open(filename, 'w', encoding=target_encoding).write(content)

def main():
    for root, dirs, files in os.walk(os.getcwd()):
        for f in files:
            if f.lower().endswith('.txt'):
                filename = os.path.join(root, f)
                try:
                    convert_encoding(filename, 'utf-8')
                except Exception, e:
                    print filename

def process_bak_files(action='restore'):
    for root, dirs, files in os.walk(os.getcwd()):
        for f in files:
            if f.lower().endswith('.txt.bak'):
                source = os.path.join(root, f)
                target = os.path.join(root, re.sub('.txt.bak$', '.txt', f, flags=re.IGNORECASE))
                try:
                    if action == 'restore':
                        shutil.move(source, target)
                    elif action == 'clear':
                        os.remove(source)
                except Exception, e:
                    print source

if __name__ == '__main__':
    # process_bak_files(action='clear')
    main()

　　其中import了python的chardet模块，此模块需要单独安装，到http://pypi.python.org/pypi/chardet#downloads下载chardet-2.1.1.tar.gz，

解压后其中有setup.py文件，用于模块的安装，执行命令：python setup.py install  ，报错：ImportError: No module named setuptools ，

需要安装setup tools，网上下载ez_setup.py，cmd执行之。重跑一遍setup.py，chardet安装成功！

另：ubuntu安装命令：　　# apt-get install python-setuptools