[Head First Python]4. pickle.dump pickle.load

sketch.py

 #--*-- coding:utf-8 --*--
 import pickle
 import nester
 man = []
 other = []
 try:
     data = open ("datafile.txt")

     for each_line in data:
         try:
             (role, line_spoken) = each_line.split(":", 1)
             line_spoken = line_spoken.strip()
             if role == 'Man':
                 man.append(line_spoken)
             elif role == 'Other Man':
                 other.append(line_spoken)    

         except ValueError:
             pass

     data.close()
 except IOError:
     print('this data file is missing!')

 try:
     with open('man.out', 'wb') as man_out, open('other.out','wb') as other_out:
         pickle.dump(man, man_out) #二进制存储数据到文件
         pickle.dump(other, other_out)

 except pickle.PickleError as perr:
     print('pickle error' + str(perr))

 new_man = []
 try:
     with open('man.out', 'rb') as man_file:
         new_man = pickle.load(man_file) #二进制文件数据读取到list
 except IOError as err:
     print('file error' + str(err))
 except pickle.PickleError as perr:
     print('pickle err' + str(perr))

 nester.print_lol(new_man)