tail -f with python
Skip Montanaro
skip at pobox.com
Sat Aug 3 15:01:47 EDT 2002
Roy> How can I write in Python something like 'tail -f filename'? I
Roy> mean, when there is an append to the file, it will be displayed
Roy> real time.
Try something like this (only very lightly tested):
#!/usr/bin/env python
import os
import sys
import time
offset = 0
fname = sys.argv[1]
try:
while 1:
size = os.path.getsize(fname)
if size > offset:
f = open(fname, 'r')
f.seek(offset)
sys.stdout.write(f.read())
f.close()
offset = size
time.sleep(0.1)
except KeyboardInterrupt:
pass
--
Skip Montanaro
skip at pobox.com
consulting: http://manatee.mojam.com/~skip/resume.html
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