Question

How can I find out the power state(whether it’s plugged to a power source, or not) of a laptop running on Ubuntu? I need to use that info. to trigger a python script, so I want to know if there is a way to do this using Python?

Answer 1

Ubuntu has support for the acpi protocol. By using the -b flag, you can get battery info. One way you may want to use this is:

import os
os.system("acpi -b > batteryinfo.txt")
#code to parse batteryinfo.txt

Having to parse the batteryinfo.txt file may be a bit of a pain. In addition you will have to set up permissions because normally acpi is only run as root.