Retaining Unix EOL when reading/writing in windows

[Steve Holden]

Nick Wain wrote:
> Hello All,
> 
> I'm relatively new to PYTHON, using PYTHON 2.4 on Windows XP. I'm having a 
> problem as below. I've asked some other people in my office who are more 
> experienced in PYTHON, but they can't help.
> 
> I have a number of files created in UNIX that have the UNIX end of line 
> (EOL) character.
> 
> I want to read these files in python, modify some lines, and then write them 
> to a new file. This appears to work fine, however I find that the output 
> files have Windows EOL characters. This is a pain, as I want to compare the 
> before and after files to see if my changes are correct.
> 
> I've simplified my code down to something that just reads a file and then 
> writes it to a different file. I'm currently doing this with a bit of code 
> that looks something like this:
> 
> filename = "test.lwc"
> outfile = open("test_out.lwc", 'w' )
> readfile = open(filename,'r').readlines()
> 
> for line in readfile:
>     outfile.write(line)
> outfile.close()
> 
> Is there a way I can do this, but retain the UNIX EOL characters?
> 
Yup. Try

outfile = open("test_out.lwc", 'wb' )

to write the file in binary mode. That way the file handling code won;t 
ferkle with what you write.

regards
  Steve
-- 
Steve Holden       +44 150 684 7255  +1 800 494 3119
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