IndexError: list index out of range

[mehtaparitosh]

$python3 bandwidth.py 500 MiB

Traceback (most recent call last):
File "bandwidth.py", line 57, in
main()
File "bandwidth.py", line 54, in main
monitor(limit, unit)
File "bandwidth.py", line 29, in monitor
if unit==l[5] and limit<l[4]:
IndexError: list index out of range

[mehtaparitosh]

Altered it for python3

#!/usr/bin/env python

import os
import sys
import time
#import re
import threading
import subprocess
import tkinter
import tkinter.messagebox as tkMessageBox

def monitor(limit, unit):
	check="vnstat"
	#os.system(check)
	proc=subprocess.Popen(check, shell=True, stdout=subprocess.PIPE)
	output=proc.communicate()
	output=str(output)
	#print output
	l = []
	for t in output.split():
		try:
			if t=="MiB" or t=="GiB":
				l.append(t)
			else:
				l.append(float(t))			
		except ValueError:
			pass
	#print(l)
	if unit==l[5] and limit<l[4]:
		print("\nnetwork usage limit exceeded!\n")
		top = Tkinter.Tk()
		def hello():
			tkMessageBox.showinfo("Warning!", "Network usage limit exceeded!!!!")
		B1 = Tkinter.Button(top, text = "Warning", command = hello)
		B1.pack()
		top.mainloop()
	arg=[limit,unit]
	threading.Timer(60.0, monitor, arg).start()
#def callMonitor(limit, unit):
#	t=threading.Timer(4.0, monitor(limit, unit))
#	t.start()
#	monitor(limit, unit)

def main():
	if len(sys.argv) >3 or len(sys.argv)<3:
		print('command usage: python bandwidth.py <data usage in MiB or GiB>')
		print('example: python bandwidth.py 500 MiB')
		print('or python bandwidth.py 2 GiB')
		exit(1)
	else:
		limit=float(sys.argv[1])
		unit=str(sys.argv[2])
		#callMonitor(limit, unit)
		monitor(limit, unit)

if __name__ == '__main__':
	main()