python的__doc__问题

luofeiyu_cu

好像python得__doc__，只能导出class或者function或者method里面用'''     '''   ,包裹起来的部分，某个模块开头的注释部分，可否在python console状态下，抓取出来？
例如

# mget.py
#
# by Nelson Rush
#
# MIT/X license.
#
# A simple program to download files in segments.
#
# - Fixes by David Loaiza for Python 2.5 added.
# - Nelson added fixes to bring the code to 2.7 and add portability between Windows/Linux.
# - The output of segment information has been corrected and cleaned up.
# - In outside cases where the client instances were not being closed, they are now closed.
#
import sys
import os
import asyncore
import socket
import platform
from string import *
from math import *
from time import *
from mmap import *

上面是一个mget.py的开头部分，从第一行到第13行的部分，可否在交互模式下，用  .__doc__的方式显示出来，或者其他的方式？

jun413947139

1. python 中__doc__是第一个未赋值的字符串(docstring),并不是注释， 所以你用# 开头的注释是不行的
2. __doc__ 支持 python的modules, functions, classes, and methods
3.  以你的mget.py为例 ：

1. #! /usr/bin/python
   
2. '''
   
3. mget.py
   
4. by Nelson Rush
   
5. 
   
6. MIT/X license.
   
7. 
   
8. A simple program to download files in segments.
   
9. 
   
10. - Fixes by David Loaiza for Python 2.5 added.
    
11. - Nelson added fixes to bring the code to 2.7 and add portability between Windows/Linux.
    
12. - The output of segment information has been corrected and cleaned up.
    
13. - In outside cases where the client instances were not being closed, they are now closed.
    
14. '''
    
15. 
    
16. import sys
    
17. import os
    
18. import asyncore
    
19. import socket
    
20. import platform
    
21. from string import *
    
22. from math import *
    
23. from time import *
    
24. from mmap import *

复制代码

在python shell中执行

1. >>> import mget
   
2. >>> mget.__doc__

复制代码

icymirror

回复 1# luofeiyu_cu
可以考虑使用自省。
import inspect
然后，使用inspect的get系列函数，可以得到对应的源文件。
之后，你可以根据需要过滤。