pythonもプライベートカスタマイズをします.小さなタイマー

import time as t
class Time():    
    def __str__(self):        
    return  self.prompt    
__repr__ = __str__    
def __iadd__(self, other):        
    tips='       '        
    result = []       
    print(other.lasted)        
    print(self.lasted)        
    for index in range(6):            
    result.append(self.lasted[index] + other.lasted[index])                                                  
    print(index)            
    if result[index]:                
         tips +=(str(result[index])+self.un[index])       
         return tips   
 #              
def __init__(self):       
    self.begin = 0        
    self.end = 0        
    self.lasted = []        
    self.prompt = '       。  start  ？'        
    self.un=[' ',' ',' ',' ',' ',' ']
#         
def start(self):              
    self.gegin = t.localtime()        
    print('    ')
#        
def stop(self):            
    self.end = t.localtime()            
    if self.begin == 0:                
          print('    start（）  ！！！')           
    else:               
          self.calc()                
          print('    ')#          
def calc(self):        
    self.prompt = '     '        
    lasted = []        
    for index in range(6) :            
    lasted.append(self.end[index]-self.begin[index])            
    if lasted[index]:                
          self.prompt += (str(lasted[index]) + self.un[index])                        
          print(list(lasted))       
    self.begin=0        
    self.end=0