ÏÂÃæÊÇpexpect ÖеÄdf.pyµÄÀý×Ó£º
#!/usr/bin/env python
"""This collects filesystem capacity info using the 'df' command.
Tuples of filesystem name and percentage are stored in a list.
A simple report is printed. Filesystems over 95% capacity are highlighted.
Note that this does not parse filesystem names after the first space, so
names with spaces in them will be truncated. This will produce ambiguous
results for automount filesystems on Apple OSX.
"""
import pexpect

child = pexpect.spawn ('df')

# parse 'df' output into a list.
pattern = "\n(\S+).*?([0-9]+)%"
filesystem_list = []
for dummy in range (0, 1000):
    i = child.expect ([pattern, pexpect.EOF])
    if i == 0:
        filesystem_list.append (child.match.groups())
    else:
        break

# Print report
print
for m in filesystem_list:
    s = "Filesystem %s is at %s%%" % (m[0], m[1])
    # highlight filesystems over 95% capacity
    if int(m[1]) > 95:
        s = '! ' + s
    else:
        s = '  ' + s
    print s


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Îļþϵͳ                   512¿é              ÒÑÓà              ¿ÉÓà   ÈÝÁ¿ °²×°ÔÚ
root_domain#root       2097152          222092     1852288    11%    /
/proc                          0                     0
0   100%    /proc
usr_domain#usr          20971520    15316376     5260720    75%    /usr
usr_domain#var          20971520      205480     5260720     4%    /var

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pattern = "\n(\S+).*?([0-9]+)%"
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root_domain#root       2097152          222092     1852288    11%    /

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child.expect ([pattern, pexpect.EOF])

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child.match.groups() ÊÇ ['root_domain#root'£¬'11'']

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URL: http://python.cn/pipermail/python-chinese/attachments/20061108/2fc48a8d/attachment.html 

Hi 
  无论我是在linux环境下直接运行python进入编辑页面，还是在window下用自带的python的GUI。python的__doc__方法返回的字符串都是不换行的，其实人家已经写了\n,请问怎么设置能让他按照这个换行那？要把看起来太费劲了

>>> def temp():
...   ''' docstring1
...  docstring2
...   '''
...   pass
...
>>> print temp.__doc__
 docstring1
 docstring2

>>>

On 11/8/06, 天才狐狸 <mem_fox at 263.net> wrote:
>
> Hi
>
>   无论我是在linux环境下直接运行python进入编辑页面，还是在window下用自带的python的GUI。python的__doc__方法返回的字符串都是不换行的，其实人家已经写了\n,请问怎么设置能让他按照这个换行那？要把看起来太费劲了
> _______________________________________________
> python-chinese
> Post: send python-chinese at lists.python.cn
> Subscribe: send subscribe to python-chinese-request at lists.python.cn
> Unsubscribe: send unsubscribe to  python-chinese-request at lists.python.cn
> Detail Info: http://python.cn/mailman/listinfo/python-chinese




-- 
http://codeplayer.blogspot.com/
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但是如果直接输入 'A'.__doc__ 这个怎能换行哪？看，输出里面明明有2个\n
'str(object) -> string\n\nReturn a nice string representation of the object.\nIf the argument is a string, the return value is the same object.'

----- Original Message ----- 
From: yi huang 
To: python-chinese at lists.python.cn 
Sent: Wednesday, November 08, 2006 10:35 AM
Subject: Re: [python-chinese]__doc__的输出能换行吗？


>>> def temp():
...   ''' docstring1
...  docstring2
...   '''
...   pass
...
>>> print temp.__doc__
 docstring1
 docstring2

>>>


On 11/8/06, 天才狐狸 <mem_fox at 263.net> wrote:
Hi
  无论我是在linux环境下直接运行python进入编辑页面，还是在window下用自带的python的GUI。python的__doc__方法返回的字符串都是不换行的，其实人家已经写了\n,请问怎么设置能让他按照这个换行那？要把看起来太费劲了
_______________________________________________
python-chinese
Post: send python-chinese at lists.python.cn
Subscribe: send subscribe to python-chinese-request at lists.python.cn
Unsubscribe: send unsubscribe to   python-chinese-request at lists.python.cn
Detail Info: http://python.cn/mailman/listinfo/python-chinese



-- 
http://codeplayer.blogspot.com/ 



_______________________________________________
python-chinese
Post: send python-chinese at lists.python.cn
Subscribe: send subscribe to python-chinese-request at lists.python.cn
Unsubscribe: send unsubscribe to  python-chinese-request at lists.python.cn
Detail Info: http://python.cn/mailman/listinfo/python-chinese

pattern = "\n(\S+).*?([0-9]+)%"  
应该匹配：以换行开始，一连串非空字符，一连串任意字符，到数字加%结束。 
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on 2006-11-08 10:00:09 gao. tan(gao.tan at gmail.com) wrote:
>下面是pexpect 中的df.py的例子：
>#!/usr/bin/env python
>"""This collects filesystem capacity info using the 'df' command.
>Tuples of filesystem name and percentage are stored in a list.
>A simple report is printed. Filesystems over 95% capacity are highlighted.
>Note that this does not parse filesystem names after the first space, so
>names with spaces in them will be truncated. This will produce ambiguous
>results for automount filesystems on Apple OSX.
>"""
>import pexpect
>
>child = pexpect.spawn ('df')
>
># parse 'df' output into a list.
>pattern = "\n(\S+).*?([0-9]+)%"
>filesystem_list = []
>for dummy in range (0, 1000):
>    i = child.expect ([pattern, pexpect.EOF])
>    if i == 0:
>        filesystem_list.append (child.match.groups())
>    else:
>        break
>
># Print report
>print
>for m in filesystem_list:
>    s = "Filesystem %s is at %s%%" % (m[0], m[1])
>    # highlight filesystems over 95% capacity
>    if int(m[1]) > 95:
>        s = '! ' + s
>    else:
>        s = '  ' + s
>    print s
>
>
>我在机器上执行df 命令，获取如下结果：
>文件系统                   512块              已用              可用   容量 安装在
>root_domain#root       2097152          222092     1852288    11%    /
>/proc                          0                     0
>0   100%    /proc
>usr_domain#usr          20971520    15316376     5260720    75%    /usr
>usr_domain#var          20971520      205480     5260720     4%    /var
>
>依我的理解：
>
>pattern = "\n(\S+).*?([0-9]+)%"
>应该匹配：以换行开始，非空字符多个，到数字加%结束。
>也就是匹配：
>
>root_domain#root       2097152          222092     1852288    11%    /
>
>但执行：
>child.expect ([pattern, pexpect.EOF])
>
>后，得到的结果：
>child.match.groups() 是 ['root_domain#root'，'11'']
>
>请问这个正则表达式怎么理解？
>_______________________________________________
pattern = "\n(\S+).*?([0-9]+)%"  
应该匹配：以换行开始，一连串非空字符，一连串任意字符，到数字加%结束。 

On 11/8/06, 天才狐狸 <mem_fox在263.net> wrote:
> 但是如果直接输入 'A'.__doc__ 这个怎能换行哪？看，输出里面明明有2个\n
> 'str(object) -> string\n\nReturn a nice string representation of the object.\nIf the argument is a string, the return value is the same object.'
>
直接看的话它只是一个字符串，而换行符不过是一个字符而已。真正的视觉上的换行是需要通过打印输出才看得到的。

-- 
I like python!
UliPad <>: http://wiki.woodpecker.org.cn/moin/UliPad
My Blog: http://www.donews.net/limodou

°´ÕÕchenyang.cq Ëù˵,
 root_domain#root       2097152          222092     1852288    11%    /
Ó¦¸ÃÆ¥Åä
root_domain#root       2097152          222092     1852288    11%    /

µ«Êä³öÈ·ÊÇ['root_domain#root'£¬'11''],
ÄѵÀÊÇchild.match.groupsÔÙÆð×÷ÓÃ?



ÔÚ06-11-8£¬chenyang.cq <chenyang.cq在gmail.com> дµÀ£º
>
>  pattern = "\n(\S+).*?([0-9]+)%"
> Ó¦¸ÃÆ¥Å䣺ÒÔ»»ÐпªÊ¼£¬Ò»Á¬´®·Ç¿Õ×Ö·û£¬Ò»Á¬´®ÈÎÒâ×Ö·û£¬µ½Êý×Ö¼Ó%½áÊø¡£
>
>
>
> _______________________________________________
> python-chinese
> Post: send python-chinese在lists.python.cn
> Subscribe: send subscribe to python-chinese-request在lists.python.cn
> Unsubscribe: send unsubscribe to  python-chinese-request在lists.python.cn
> Detail Info: http://python.cn/mailman/listinfo/python-chinese
>
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On 11/8/06, gao. tan <gao.tan在gmail.com> wrote:
> 按照chenyang.cq 所说,
>  root_domain#root       2097152          222092     1852288    11%    /
> 应该匹配
>  root_domain#root       2097152          222092     1852288    11%    /
>
> 但输出确是['root_domain#root'，'11''],
> 难道是 child.match.groups再起作用?
>
group()与groups()是两个不同的东西啊。一个是整个匹配结果，一个是分组(括号中的内容)的结果，当然不同了。


-- 
I like python!
UliPad <>: http://wiki.woodpecker.org.cn/moin/UliPad
My Blog: http://www.donews.net/limodou