Suspends laptop to save power during unexpected power outages(they're quite common in Nepal)

loadsave.py

'''Checks the state of AC adapter(online or offline) and suspends the computer if offline'''
#while true ; do python2.7 loadsave.py ; sleep 5m; done
import os

comm = '''dbus-send --system --print-reply --dest="org.freedesktop.UPower" \
/org/freedesktop/UPower org.freedesktop.UPower.Suspend'''

def loadsave():
    os.system("acpi -a > powerinfo.txt")
    f = open('powerinfo.txt', 'r')
    if f.read().strip() == "Adapter 0: off-line":
        print "Putting computer to sleep" 
        os.system(comm) #suspend if ac power is not connected

if __name__ == '__main__':
    loadsave()