[EMAIL PROTECTED] wrote:
> 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?
Don't wonder, like the ancient philosophers; be an empiricist :-)
> Thanks.
>
If the files are truly huge, you run the risk of exhausting real memory
and having to swap.
Try this:
Having opened the files,
for line in infile:
outfile.write(line)
Otherwise look at the docs for read the method and check out the "size"
argument.
General warnings: (1) If you want to be portable, consider text/binary
differences. (2) Consider what to do if the last line in <outfilename>
is not terminated.
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