append one file to another

[Thomas Guettler]

Am Tue, 12 Jul 2005 06:47:50 -0700 schrieb b83503104 at yahoo.com:

> Hi,
> 
> I want to append one (huge) file to another (huge) file.  The current
> way I'm doing it is to do something like:
> 
> infile = open (infilename, 'r')
> filestr = infile.read()
> outfile = open(outfilename, 'a')
> outfile.write(filestr)
> 
> I wonder if there is a more efficient way doing this?
> Thanks.

I guess (don't know), that this is faster:

for line in infile:
    outfile.write(line)

At least if this a file with "lines".

If it is a binary file, you could read 
N bytes at once: infile.read(N)

 Thomas


-- 
Thomas Güttler, http://www.thomas-guettler.de/