[Tutor] Stuck on Something

[David Porter]

* Britt Green <britt_green@hotmail.com>:
> >#---
> >
> >import string
> >
> >raw_dirs = """\ drwxrwx--- 2 restback privftp 512 Mar 6 21:23 
> >technicolorkitchen drwxrwx--- 2 restback privftp 512 Mar 6 21:58 
> >theclubhouse drwxrwx--- 2 restback privftp 512 Mar 6 21:07 thirdstreet 
> >drwxrwx--- 2 restback privftp 512 Feb 27 11:18 thyme"""
> >
> >dirs = [] raw_dirs = string.split(raw_dirs, '\n') for x in raw_dirs: 
> >dirs.append(string.split(x)[-1])
> >
> >print dirs
> 
> Okay. I see what you're doing with this. Unfortunately, when I run this I 
> get this error:
> 
> >>>
> Traceback (innermost last):
>   File "C:\Program Files\Python20\Code\anotherftpthing.py", line 22, in ?
>     dirs.append(string.split(x)[-1])
> IndexError: list index out of range

Ah. This could be due to empty lines in raw_dirs. How about changing

for x in raw_dirs: 
    dirs.append(string.split(x)[-1])

 TO
    
for x in raw_dirs: 
    try:
        dirs.append(string.split(x)[-1])
    except IndexError:
        pass    

	
This *should* ignore any line without a directory. Another method will trim
trailing and leading whitespace which might address the problem more
directly. just add the line:

raw_dirs = string.strip(raw_dirs)

 right before 

raw_dirs = string.split(raw_dirs, '\n')


HTH,
David