Notify how much swap space is available (Linux)

memory-notifier.py

#!/usr/bin/env python3
#-*- coding: utf-8 -*-

import re
from gi.repository import Notify


def send_message(summary, message):
    Notify.init (summary)
    notification = Notify.Notification.new (summary,message,"dialog-information")
    notification.show ()


def get_swap_memory_data():
    file = open("/proc/meminfo", "r")
    lines = []
    for line in file:
        if re.search("Swap", line):
            lines.append(line.replace("\n",""))
    return lines


send_message("Swap Summary", "\n".join(get_swap_memory_data()))