python实现将汉字转换成汉语拼音的库

#!/usr/bin/env python# -*- coding:utf-8 -*-__version__ = '0.9'__all__ = ["PinYin"]import os.pathclass PinYin(object): def __init__(self, dict_file='word.data'):  self.word_dict = {}  self.dict_file = dict_file def load_word(self):  if not os.path.exists(self.dict_file):   raise IOError("NotFoundFile")  with file(self.dict_file) as f_obj:   for f_line in f_obj.readlines():    try:     line = f_line.split(' ')     self.word_dict[line[0]] = line[1]    except:     line = f_line.split(' ')     self.word_dict[line[0]] = line[1] def hanzi2pinyin(self, string=""):  result = []  if not isinstance(string, unicode):   string = string.decode("utf-8")  for char in string:   key = '%X' % ord(char)   result.append(self.word_dict.get(key,char).split()[0][:-1].lower())  return result def hanzi2pinyin_split(self, string="", split=""):  result = self.hanzi2pinyin(string=string)  if split == "":   return result  else:   return split.join(result)if __name__ == "__main__": test = PinYin() test.load_word() string = "欢迎来到武林网" print "in: %s" % string print "out: %s" % str(test.hanzi2pinyin(string=string)) print "out: %s" % test.hanzi2pinyin_split(string=string, split="-")