使用python的chardet库获得文件编码并修改编码

首先需要安装chardet库,有很多方式,我才用的是比较笨的方式:sudo pip install chardet

代码如下:

#!/usr/bin/env python# coding: utf-8import sysimport osimport chardet def print_usage():  print ”’usage:  change_charset [file|directory] [charset] [output file]\n  for example:   change 1.txt utf-8 n1.txt   change 1.txt utf-8   change . utf-8   change 1.txt”’def get_charset(s):  return chardet.detect(s)[‘encoding’] def remove(file_name):  os.remove(file_name) def change_file_charset(file_name, output_file_name, charset):  f = open(file_name)  s = f.read()  f.close()  if file_name == output_file_name or output_file_name == “”:    remove(file_name)  old_charset = get_charset(s)  u = s.decode(old_charset)  if output_file_name == “”:    output_file_name = file_name  f = open(output_file_name, ‘w’)  s = u.encode(charset)  f.write(s)  f.close() def do(file_name, output_file_name, charset):  if os.path.isdir(file_name):    for item in os.listdir(file_name):      try:        if os.path.isdir(file_name+”/”+item):          do(file_name+”/”+item, “”, charset)        else:          change_file_charset(file_name+”/”+item, “”, charset)      except oserror, e:        print e  else:    change_file_charset(file_name, output_file_name, charset) if __name__ == ‘__main__’:  length = len(sys.argv)  if length == 1:    print_usage()  elif length == 2:    do(sys.argv[1], “”, “utf-8”)  elif length == 3:    do(sys.argv[1], “”, sys.argv[2])  elif length == 4:    do(sys.argv[1], sys.argv[3], sys.argv[2])  else:    print_usage()