[Head First Python]4.读取文件datafile.txt, 去除两边空格, 存储到列表,从列表格式化(nester.py)后输出到文件man.out,other.out

datafile.txt  #文件

Man: this is the right room for an argument.
Other Man: I've told you once.
Man: No you haven't
Other Man: Yes, I have.
(pause)
Man: When?
Other Man: Just now.
Man: No you didn't
Other Man: Yes I did.
Man: You didn't
Other Man: I'm telling you, I did!

nester.py #输出模块 第2章文件nester.py修改后的模块,安装到你的python环境中

 def print_lol(the_list, indent = False, level = 0, fn = sys.stdout):
     for each_item in the_list:
         if isinstance(each_item,list):
             print_lol(each_item, indent, level + 1, fn);
         else:
             if indent:
                 for tab_stop in range(level):
                     print("\t",end='', file = fn)
             print(each_item, file = fn)

sketch.py #读取文件datafile.txt, 去除两边空格, 存储到列表,从列表格式化(nester.py)后输出到文件man.out,other.out

 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', 'w') as man_out, open('other.out','w') as other_out:
         nester.print_lol(man, fn = man_out)
         nester.print_lol(other, fn = other_out)

 except fileError as err:
     print('file error' + str(err)) 

man.out

this is the right room for an argument.
No you haven't
When?
No you didn't
You didn't

other.out

I've told you once.
Yes, I have.
Just now.
Yes I did.
I'm telling you, I did!