reading the last line of a file
mfranklin1 at gatwick.westerngeco.slb.com
Thu Sep 8 11:10:53 CEST 2005
Xah Lee wrote:
> Martin Franklin wrote:
>>log_file = gzip.open("access_log.4.gz")
>>last_line = log_file.readlines()[-1]
> does the
> actually read all the lines first?
Yes I'm afraid it does.
> i switched to system call with tail because originally i was using a
> pure Python solution
> inF = gzip.GzipFile(ff, 'rb');
> and since the log file is 100 megabytes it takes a long time and hogs
> massive memory.
Ok, in that case stick to your shell based solution, although 100
megabytes does not sound that large to me I guess it is relative
to the system you are running on :) (I have over a gig of memory here)
> xah at xahlee.org
> ∑ http://xahlee.org/
More information about the Python-list