Thank you David!
I've incorporated your parts into my code, and after some fiddling it
worked!
I've kept the glob.glob though because having to type all filenames (as in
your code) would take me too long.
Solved problem:
Add a casenumber to every line in a directory filled with .arff files, write
back to same filename prefixed with TRE_
Code:
import os, glob
fileprefix = 'TRE_'
path = '/bla/example/'
for infile in glob.glob( os.path.join(path, '*.arff') ):
print "current file is: " + infile
lines= open(infile).readlines()
(filepath, filename) = os.path.split(infile)
outname = ('%s%s'%(fileprefix,filename))
outtext = ['%d %s' % (i, line) for i, line in enumerate(lines)]
outfile = open(outname, "w")
outfile.writelines(outtext)
outfile.close()
Sincerely,
Daan
-----Original Message-----
From: David Hutto [mailto:smokefl...@gmail.com]
Sent: zaterdag 15 januari 2011 22:50
To: Daan Raemdonck
Cc: tutor@python.org
Subject: Re: [Tutor] Add rownumber to list of .arff files
>>> filename = ['file1','file2','file3']
>>> fileprefix = 'TRE_'
>>> for item in filename: print('%s%s'%(fileprefix,item))
...
TRE_file1
TRE_file2
TRE_file3
or with list comp
>>> combined = [('%s%s'%(fileprefix,item)) for item in filename]
>>> combined
['TRE_file1', 'TRE_file2', 'TRE_file3']
>>>
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