[Tutor] Reading text files

[Remco Gerlich]

On Thu, Apr 27, 2000 at 04:24:59PM -0700, John Choi wrote:
> I've got another text file question and was hoping I could glean more
> knowledge...
> 
> Problem:
> Over a hundred text files by the following file name convention:
> 
> quickYYYYMMDD.txt
> 
> For each file, read the 1st and 7th line, and then write those lines to
> another file named aggy.txt in the following format:
> 
> <1st line>, "~", <7th line>
> 
> Any help or suggestions on how to go about doing this would be greatly
> appreciated.  As it stands, I'm opening each file copy/pasting the lines.

I can't test here, but I think something like this works:

import glob

aggy = open('aggy.txt','w')

files = glob.glob('quick*.txt')
for file in files:
   f = open(file,'r')
   line1 = f.readline()
   for i in range(6): 
     spam = f.readline() # Skip 5 lines
   line2 = f.readline()
   f.write('%s~%s' % (line1, line2))
   f.close()
aggy.close()
   


Not sure if I got the format right though.

-- 
Remco Gerlich,  scarblac@pino.selwerd.nl