jobs1.py

This demo shows how to use Job to tell the user what's going on. The first example will run the job with the System Console as user interface. See also jobs2.py.

Source code:

## Copyright 2005-2006 Luc Saffre 

## This file is part of the Lino project.

## Lino is free software; you can redistribute it and/or modify it
## under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 2 of the License, or
## (at your option) any later version.

## Lino is distributed in the hope that it will be useful, but WITHOUT
## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
## or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
## License for more details.

## You should have received a copy of the GNU General Public License
## along with Lino; if not, write to the Free Software Foundation,
## Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

from time import sleep

from lino.console import syscon

STEPS = 2

def work(task):
    sess=task.session
    sess.status("Working hard")
    for n in range(1,STEPS+1):
        sess.error('error message %d',n)
        for h in range(1,STEPS+1):
            sess.warning('warning message %d.%d',n,h)
            for i in range(1,STEPS+1):
                sess.notice('notice message %d.%d.%d',n,h,i)
                for j in range(1,STEPS+1):
                    sess.verbose(
                        'verbose message %d.%d.%d.%d',n,h,i,j)
                    for k in range(1,STEPS+1):
                        sess.debug(
                            'debug message %d.%d.%d.%d.%d',n,h,i,j,k)
                        task.increment()
                        sleep(0.05)
        


if __name__ == "__main__":
    syscon.parse_args()
    syscon.loop(work,"loop() with known maxval",pow(STEPS,5))
    syscon.loop(work,"loop() without known maxval")

    
    

Watch this demo by issuing the following command in the demo directory:

python jobs1.py

Invoke this script with different command-line options to get different output:

  python jobs1.py      (normal)
  python jobs1.py -v   (verbose)
  python jobs1.py -vv  (very verbose aka debug)
  python jobs1.py -q   (quiet)
  python jobs1.py -qq  (very quiet)