Check total memory and if used more than 3.0GB and make desktop notification with programs which use more than 2.0GB

checkmemory.py

#!/usr/bin/env python2

import commands, pynotify, sys, os, time

while 1:
    lines = commands.getoutput('sudo ps_mem.py').split('\n')
    total = [float(str(l).split(" ")[-2]) for l in lines if l.startswith("                ") and l.find("GiB")]
    progs = [str(l).split("=")[1].strip().split(" ") for l in lines if l.find("GiB") != -1 and not l.startswith("                ")]

    for prog in progs:
        if float(prog[0]) > 2.0 and total[0] > 3.0:
            pynotify.init("Memory usage notification")
            notification = pynotify.Notification(prog[0] + " " + prog[1].replace('\t', ' '), "")
            notification.show()

    time.sleep(300)

i will never learn how to use web broswer with just few tabs. this is a little daemon which notifies me when things get close to screwed up ;)