#!/usr/bin/env python3

import i3ipc
import subprocess

def on_shutdown(conn=None):
    for ws in range(1, 4):
        file = open('/home/felix/.config/i3/workspace_' + str(ws) + '.json', 'w')
        bashCommand = 'i3-save-tree --workspace ' + str(ws)
        subprocess.Popen(bashCommand.split(), stdout=file)

on_shutdown()
conn = i3ipc.Connection()

conn.on('ipc_shutdown', on_shutdown)

conn.main()