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

 1 #--*-- coding:utf-8 --*--
 2 import pickle
 3 import nester
 4 man = []
 5 other = []
 6 try:
 7     data = open ("datafile.txt")
 8 
 9     for each_line in data:
10         try:    
11             (role, line_spoken) = each_line.split(":", 1)
12             line_spoken = line_spoken.strip()
13             if role == ‘Man‘:
14                 man.append(line_spoken)
15             elif role == ‘Other Man‘:
16                 other.append(line_spoken)    
17             
18         except ValueError:
19             pass
20 
21     data.close()
22 except IOError:
23     print(‘this data file is missing!‘)
24 
25 try:
26     with open(‘man.out‘, ‘wb‘) as man_out, open(‘other.out‘,‘wb‘) as other_out:
27         pickle.dump(man, man_out) #二进制存储数据到文件
28         pickle.dump(other, other_out)
29 
30 except pickle.PickleError as perr:
31     print(‘pickle error‘ + str(perr))
32 
33 new_man = []
34 try:
35     with open(‘man.out‘, ‘rb‘) as man_file:
36         new_man = pickle.load(man_file) #二进制文件数据读取到list
37 except IOError as err:
38     print(‘file error‘ + str(err))
39 except pickle.PickleError as perr:
40     print(‘pickle err‘ + str(perr))
41 
42 nester.print_lol(new_man)