Python Query

[Oliver Schaefer]

ns56645 wrote:
> Hi, 
> Can anybody give me a code for the following in python: 
> Program which does directory listing and everything that is a directory, 
> the program puts the word  "Directory" in front of it. 
> The output should be as follows: 
> a1.txt 
> r1.bat 
> k1          Directory 
> a2.txt 
> r2.txt 
> k2         Directory 
> because k1 and k2 are directories 
> Thanking you in anticipation 
> Shah 


>>> help(listdir)
(dirname='.', columns=40, truncate=0)
    sorted directory listing.

    dirname may be relative
    columns [=40] - min length of filenames
    truncate [=0] - max length of filenames
                    0 means don't truncate
    

>>> print listdir('/')
.bash_history                            
.bash_profile                            
.bashrc                                  
AUTOEXEC.BAT                             
COMMAND.COM                              
CONFIG.SYS                               
Eigene Dateien                            directory
IO.SYS                                   
Inetpub                                   directory
MSDOS.SYS                                
Multimedia Files                          directory
Programme                                 directory
RECYCLED                                  directory
Windows                                   directory
html                                      directory
jdk                                       directory
jre                                       directory
>>> print listdir('/', 10, 10)
.bash_hist
.bash_prof
.bashrc
[...]
Eigene Dat directory
[...]


[listdir]----------------------------------------

def listdir(dirname='.', columns=40, truncate=0):
    """\
    sorted directory listing.

    dirname may be relative
    columns [=40] - min length of filenames
    truncate [=0] - max length of filenames
                    0 means don't truncate
    """
    import os, string

    dirname = os.path.abspath(dirname)
    dirlist = os.listdir(dirname)
    dirlist.sort()
    res = []

    isdir = os.path.isdir
    join  = os.path.join

    if truncate:
        # %%      -->  escape %
        # %-m.Ps  -->  left justification, m columns minimum length
        #              P columns precision (maximum length)
        format = '%%-%d.%ds %%s' % (columns, truncate)
    else:
        format = '%%-%ds %%s' % columns

    for filename in dirlist:
        fullname = join(dirname, filename)
        if isdir(fullname):
            typ = 'directory'
        else:
            # you may want to display the file size with
            # typ = '%9d' % os.path.getsize(fullname)
            # (right justification, 9 digits min length)
            typ = ''
        res.append(format % (filename, typ))
    return string.join(res, '\n')

[/listdir]----------------------------------------


Regards,
Oliver Schaefer  [ SchaeferFFM at gmx.de ]

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