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()