python program to watch a file - example.

[Isaac To]

>>>>> "Tim" == Tim Hoffman <timh at zute.net> writes:

    Tim> If it is always the same file and seeing you are looking at *nix
    Tim> varient, one of the unix like ways would be to tail -f the file,
    Tim> and hook it up to your process which just does blocking reads on
    Tim> stdin.

    Tim> ie tail -f somfile | python my_watch.py

tail -f is doing a polling loop, polling each second by default.  In python
you are probably better off coding even the polling loop in Python as well,
rather than calling tail.

Regards,
Isaac.