为数据建模

把文本文件中的数据转换为AthleteList对象实例，存储在一个字典中（按选手索引），然后保存为一个pickle文件。

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# Author kevin_hou import pickle from athletelist import AthleteList   def get_coach_data(filename):         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)   def put_to_store(files_list):     all_athletes = {}     for each_file in files_list:         ath = get_coach_data(each_file) #将各个文件转换为一个AthleteList对象实例，并把选手的数据增加到字典。         all_athletes[ath.name] = ath #每个选手的名字作为字典的"键"，"值"是AthleteList对象实例     try:         with open('athletes.pickle', 'wb') as athf:             pickle.dump(all_athletes, athf)  #将整个AthleteList增加到一个pickle中     except IOError as ioerr:    #不要忘记用一个try/except来保护你的文件I/O代码         print('File error (put_and_store):' + str(ioerr))     return (all_athletes)   def get_from_store():     all_athletes = {}     try:         with open('athletes.pickle', 'rb') as athf:             all_athletes = pickle.load(athf) #只需将整个pickle读入字典     except IOError as ioerr:         print('File error(get_from_store):' + str(ioerr))         return (all_athletes) print(dir()) #['AthleteList', '__annotations__', '__builtins__', '__cached__', # '__doc__', '__file__', '__loader__', '__name__', '__package__', '__spec__', # 'get_coach_data', 'get_from_store', 'pickle', 'put_to_store']   the_files = ['sarah.txt', 'james.txt', 'mikey.txt', 'julie.txt'] data = put_to_store(the_files) print(data) #{'Sarah Sweeney': ['2.58', '2:39', '2-25', '2-25', '2:54', '2.18', '2:55', '2:55'], # 'James Lee': ['3:21', '2:34', '2.45', '3.01', '2:01', '2:01', '3:10', '2:22'], # 'Mikey': ['3.01', '3:01', '3.02', '3:02', '3.02', '3:22', '2.49', '2:38'], #  'Julie Jones': ['2.11', '2:11', '2:23', '3:10', '2:23', '3:10', '3:21', '3-21']}   for each_athlete in data:     print(data[each_athlete].name + '' + data[each_athlete].dob)   # Sarah Sweeney2002-6-17 # James Lee2002-3-4 # Mikey McManus 2002-2-24 # Julie Jones 2002-8-17