On Thu, Jan 1, 2009 at 2:19 PM, Barak, Ron <ron.ba...@lsi.com> wrote:
> I have a very big text file: I need to find the place where the last line
> begins (namely, the offset of the one-before-the-last '\n' + 1).
> Could you suggest a way to do that without getting all the file into memory
> (as I said, it's a big file), or heaving to readline() all lines (ditto) ?
for line in open(filename):
lastline = line
print "the lastline is: %s",%lastline
This will read all the lines, but line by line, so you will never have
the whole file in memory.
There may be more eficient ways to do this, like using the itertools.
Best,
SB.
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