Barak, Ron wrote:
Hi,
I need to read the end of a 20 MB gzip archives (To extract the date
from the last line of a a gzipped log file).
The solution I have below takes noticeable time to reach the end of the
gzip archive.
Does anyone have a faster solution to read the last line of a gzip archive ?
Thanks,
Ron.
#!/usr/bin/env python
import gzip
path = "./a/20/mb/file.tgz"
in_file = gzip.open(path, "r")
first_line = in_file.readline()
print "first_line ==",first_line
in_file.seek(-500)
last_line = in_file.readlines()[-1]
print "last_line ==",last_line
It takes a noticeable time to reach the end because, well, the data is
compressed! The compression method used requires the preceding data to
be read first.
--
http://mail.python.org/mailman/listinfo/python-list
