Unable to write output from os.path.walk to a file.

Paul Lemelle pdl5000 at yahoo.com
Thu Jun 5 00:07:00 CEST 2008


Jeff,

Thanks for your reply.  I would like to like the absolute path of a directory.  I thought that os.listdir just returns the nam itself in a data list.  

I noticed that none was being return in my example.  Do you think that I have the arguments misplaced?

Thanks,
Paul



--- On Wed, 6/4/08, Jeff McNeil <jeff at jmcneil.net> wrote:

> From: Jeff McNeil <jeff at jmcneil.net>
> Subject: Re: Unable to write output from os.path.walk to a file.
> To: pdl5000 at yahoo.com
> Cc: python-list at python.org
> Date: Wednesday, June 4, 2008, 3:26 PM
> What exactly are you trying to accomplish? If you're
> just looking for
> the contents of a directory, it would be much easier to
> simply call
> os.listdir(dirinput) as that will return a list of strings
> that
> represent the entries in dirinput.
> 
> As it stands, 'os.path.walk' will return None in
> your example, thus
> the reason f.writelines is failing, the error says
> something about a
> required iterable, no?
> 
> You ought to look at os.walk anyways, as I believe it is
> the preferred
> approach when walking a directory hierarchy. It's a
> generator that
> will yield a tuple that contains (dirname, subdirectories,
> filenames).
> It seems that is what you're looking for?
> 
> Thanks,
> 
> Jeff
> 
> 
> 
> 
> On Wed, Jun 4, 2008 at 2:54 PM, Paul Lemelle
> <pdl5000 at yahoo.com> wrote:
> > I Am trying to output the os.path.walk to a file, but
> the writelines method complains....
> >
> > Below is the code, any helpful suggestions would be
> appreciated.
> >
> > def visit(arg, dirnames, names):
> >        print dirnames
> >
> >
> >
> >
> > dirinput = raw_input("Enter directory to read:
> ")
> >
> > listdir = os.path.walk (dirinput, visit, None)
> >
> > f = open("walktxt", "w")
> >
> > f.writelines(listdir)
> >
> > f.close()
> >
> >
> >
> >
> >
> > --
> > http://mail.python.org/mailman/listinfo/python-list
> >


      



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