IndentationError: unindent does not match any outer indentation level

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# Author kevin_hou   def sanitize(time_string):　　#格式化时间     if '-' in time_string:         splitter = '-'     elif ':' in time_string:         splitter = ':'     else:         return (time_string)     (mins, secs) = time_string.split(splitter)     return (mins + '.' + secs)   class AthleteList(list):　　#定义类     def __init__(self, a_name, a_dob=None, a_times=[]):         list.__init__([])         self.name = a_name         self.dob = a_dob         self.extend(a_times)     def top3(self):　　#定义排在前3的函数         return (sorted(set([sanitize(t) for t in self]))[0:3])   def get_coach_data(filename):　　#打开文件获取数据     try:         with open(filename) as f:             data = f.readline()             temp1 = data.strip().split(',')             return (AthleteList(temp1.pop(0), temp1.pop(0), temp1))     except IOError as ioerr:         print('File error:' + str(ioerr))         return(None)      james = get_coach_data('james2.txt')    sarah = get_coach_data('sarah2.txt')   print(james.name +" 's fastest times are:" + str(james.top3())) #James Lee 's fastest times are:[' 2.34', '2.01', '2.22'] print(sarah.name +" 's fastest times are: " + str(sarah.top3())) #Sarah Sweeney 's fastest times are: ['2.18', '2.25', '2.39']

　　

 

 出现这个错误的原因是115,116行代码起始位置存在空格，只要将相应的空格去除就OK了。这里强调一下，python的代码对齐要求比较严格，如果书写有误，会自动检查出，并提示此错误。

 

 去掉空格运行正常，输出正常。有时候不是代码逻辑输入错误，而是格式或对齐方式输入错误导致代码执行出错。