python 转换数字为钱数

目标：

输入一串数字，将其输出为几元几角几分

程序：

    #!/usr/bin/env python  
    #coding:utf8  
      
    num_dict = {'1':'一','2':'二','3':'三','4':'四','5':'五',  
                '6':'六','7':'七','8':'八','9':'九'}  
    money_dict = {'-2':'分','-1':'角','0':'元','1':'十',  
                '2':'百','3':'千','4':'万','8':'亿'}  
      
    def trans(money):  
        money_str = []  
        for index,value in enumerate(money[0][::-1]):  
            remain = index%4  
            if value != '0':  
                if remain != 0:  
                    money_str.insert(0,num_dict[value]+money_dict[str(remain)])  
                else:  
                    money_str.insert(0,num_dict[value]+money_dict[str(index)])  
     18         elif remain == 0 and (index+1) != len(money[0]):  
     19             money_str.insert(0,money_dict[str(index)])  
     20     if len(money) > 1:  
     21         for index,value in enumerate(money[1]):  
     22             if index > 1:  
     23                 break  
     24             if value != 0:  
     25                 money_str.append(num_dict[value]+money_dict['-'+str(index+1)])  
     26     print ''.join(money_str)  
     27  
     28 def main():  
     29     input_str = raw_input('Entry your money:')  
     30     money = input_str.split('.')  
     31     trans(money)  
     32  
     33 if __name__ == '__main__':  
     34     main()