On 9/2/2012 6:36 AM, Gilles wrote:
On Sun, 02 Sep 2012 12:19:02 +0200, Gilles <nos...@nospam.com> wrote:
(snip)
Found it:
#rewrite lines to new file
output = open('output.txt','w')
for line in textlines:
#edit each line
line = "just a test"
output.write("%s" % line)
output.close()
If you process each line separately, there is no reason to read them all
at once. Use the file as an iterator directly. Since line is already a
string, there is no reason to copy it into a new string. Combining these
two changes with Mark's suggestion to use with and we have the following
simple code:
with open('input.txt', 'r') as inp, open('output.txt', 'w') as out:
for line in inp:
out.write(process(line))
where for your example, process(line) == 'just a test\n'
(you need explicit line ending for .write())
--
Terry Jan Reedy
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