Python 通过print_lol将数据保存到文件中

1. 定义一个print_lol函数来控制列表的缩进和写入位置

import sys
"""this is a new fuction, which work for a list"""
def print_lol(the_list,indent=False,level=0,where=sys.stdout):
    """ one arguement is the_list"""
    for each_item in the_list:
        if isinstance(each_item,list):
            print_lol(each_item,indent,level+1,where)
        else:
            if indent:
                    for tab_stop in range(level):
                        print("\t",end='',file=where)
            print(each_item,file=where)

2. 将更新的代码安装到本地库

C:\Users\eric\Documents\Python\nester>c:\Users\eric\AppData\Local\Programs\Python\Python35-32\python.exe setup.py install
running install
running build
running build_py
copying nester.py -> build\lib
running install_lib
copying build\lib\nester.py -> c:\Users\eric\AppData\Local\Programs\Python\Python35-32\Lib\site-packages
byte-compiling c:\Users\eric\AppData\Local\Programs\Python\Python35-32\Lib\site-packages\nester.py to nester.cpython-35.pyc
running install_egg_info
Removing c:\Users\eric\AppData\Local\Programs\Python\Python35-32\Lib\site-packages\iamericnester-1.6.1-py3.5.egg-info
Writing c:\Users\eric\AppData\Local\Programs\Python\Python35-32\Lib\site-packages\iamericnester-1.6.1-py3.5.egg-info

3. 前段代码格式化文件内容并分割将内容存入man和other两个对象，后段代码以写模式打开2个新的文件并man和other对象存入其中。(存入的过程中调用print_lol进行格式再处理)

import nester
import sys
man = []
other = []
try:
    data = open('sketch.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 ('The datafiel is missing!')

try:
    with open('man_data.txt','w') as man_file:
        nester.print_lol(man,where=man_file)

    with open('other_data.txt','w') as other_file:
        nester.print_lol(other,where=other_file)

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