diff --git a/files/diskfree-tracker b/files/diskfree-tracker
index 4631f1e..c98ed6a 100755
--- a/files/diskfree-tracker
+++ b/files/diskfree-tracker
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import sys,os,glob
 from datetime import datetime
@@ -7,7 +7,7 @@ import re,signal,time
 import subprocess
 #,threading
 
-VERSION=2
+VERSION=3
 
 W= '30'
 R= '31'
@@ -40,21 +40,24 @@ Shows the output of df in colour.
     parser.add_argument("--no-colors",'--nc',action="store_false",dest="colors",default=True,
                         help="Disable colored output")
     parser.add_argument("-n",type=int,dest="delay",default=3,
-                        help="Refresh delay")                    
+                        help="Refresh delay")
     parser.add_argument("-1",action="store_true",dest="once",default=False,
                         help="Run once and exit")
-
+    parser.add_argument("-x",'--exclude',type=str,dest="exclude",default="tmpfs,devtmpfs,squashfs",
+                        help="Comma separated list of excluded filesystem types. Defaults: %(default)s")
     parser.add_argument("--version",action='version', version=VERSION)
     options=parser.parse_args()
 
     return options
-    
+
+
 def c(attribs):
     ''' ANSI colorizer '''
     if not options.colors:
         return ""
     return '\033['+';'.join(attribs)+'m'
 
+
 def pos(y,x):
     ''' ANSI absolute position set '''
     return "\033["+str(y)+";"+str(x)+"H"
@@ -71,7 +74,7 @@ def colorize(string):
 
 def count_running(string, stats):
     ''' Counts the running executions '''
-    
+
     spl=[i for i in " ".join(string.split()).split(' ')]
     if len(spl)!=7:
         return stats
@@ -97,18 +100,19 @@ def count_running(string, stats):
                                  int(spl[2])*1024
                                  ))
     stats['running'].sort(key=SORTKEY)
-    
+
     stats['files']=[i[2] for i in stats['running']]
     totalfree=sum([i[0] for i in stats['running']])
     total=sum([i[6] for i in stats['running']])
     stats['totals']=[totalfree, total]
     return stats
 
+
 class EndProgram( Exception ):
     ''' Nice way of exiting the program '''
     pass
 
-    
+
 def is_number(s):
     ''' Check if string is float '''
     try:
@@ -117,6 +121,7 @@ def is_number(s):
     except:
         return False
 
+
 def str_short(s,stats):
     ''' shorten text to fit screen '''
     maxL=stats['size'][1] - 16
@@ -125,7 +130,7 @@ def str_short(s,stats):
     spl=s.split('/')
     sNew=spl[0]+'/...'+'/'.join(spl[1:])[-(maxL-len(spl[0])-5):]
     return sNew
-    
+
 
 def print_stats(stats):
     ''' Prints logged errors, and the status line '''
@@ -157,10 +162,11 @@ def print_stats(stats):
                         CLRLN)
     for i in range(stats['size'][0]-7-len(stats['running'])):
         sys.stdout.write(pos(e+5+ex[0]+i,0)+"    "+CLRLN)
-            
-    sys.stdout.write(DOWN+CLRBLN+CLRLN)            
+
+    sys.stdout.write(DOWN+CLRBLN+CLRLN)
     #sys.stdout.write(LOAD)
 
+
 def print_stats_once(stats):
     ''' Prints logged errors, once '''
     e=0
@@ -182,12 +188,12 @@ def print_stats_once(stats):
                         CLRLN+'\n')
     sys.stdout.write(
                     ' '.join([
-                              human_size(stats['totals'][1]).rjust(8), 
+                              human_size(stats['totals'][1]).rjust(8),
                               human_size(stats['totals'][1]-stats['totals'][0]).rjust(10), '    ',
                               human_size(stats['totals'][0]).rjust(10)
                               ])+
                         CLRLN+'\n')
-            
+
 
 def colorize_usage(string):
     ''' colorizes the usage string '''
@@ -210,11 +216,13 @@ def mean_speed(history):
     speed=sum(history)/len(history)
     return int(speed)
 
+
 def human_time(dt=False):
     if not dt:
         dt=datetime.now()
     return dt.strftime("%H:%M:%S")
 
+
 def human_size(size,precision=1):
     if size==None:
         return 'nan'
@@ -231,6 +239,7 @@ def human_size(size,precision=1):
         defPrecision=precision
     return "%s%.*f%s"%(sign,defPrecision,size,suffixes[suffixIndex])
 
+
 def readinput(lf):
     try:
         line = lf.stdout.readline()
@@ -239,6 +248,7 @@ def readinput(lf):
     except:
         return "CleanerTimeout"
 
+
 def termsize():
     try:
         rows, columns = os.popen('stty size', 'r').read().split()
@@ -255,7 +265,7 @@ color_match={#'line_ends':(re.compile('$'),c.END),
         'percent':(re.compile('([0-9]+%)'),c([Y,S])+'\\1'+c([E])),
 }
 
-stats={'time':datetime.now(), 
+stats={'time':datetime.now(),
        'running':[],
        'files':[],
        'totals':[],
@@ -265,19 +275,23 @@ stats={'time':datetime.now(),
 
 if not options.once:
     sys.stdout.write(CLR+pos(0,0)+"Launching...")
+omit_opts = []
+for omit in options.exclude.split(","):
+    omit_opts.append("-x")
+    omit_opts.append(omit.strip())
 while 1:
 
     try:
 
-        proc = subprocess.Popen(['df','-x','tmpfs','-x','devtmpfs','-T'],stdout=subprocess.PIPE)
+        proc = subprocess.Popen(['df','-T'] + omit_opts,stdout=subprocess.PIPE)
         # set a 5 second timeout for the line read.
         #~ signal.signal(signal.SIGALRM, transfers.readline)
         #~ signal.alarm(5)
         stdout,stderr=proc.communicate()
         if not stdout:
             raise EndProgram
-        
-        for line in stdout.split('\n')[1:]:
+
+        for line in stdout.decode('utf-8').split('\n')[1:]:
             stats=count_running(line,stats)
 
         if options.once:
@@ -286,11 +300,11 @@ while 1:
         print_stats(stats)
         sys.stdout.flush()
         time.sleep(options.delay)
-        
-    except EndProgram,KeyboardInterrupt:
+
+    except (EndProgram, KeyboardInterrupt):
         sys.stdout.write(DOWN+'\n')
         sys.stdout.flush()
-        
-        sys.exit(0)    
+
+        sys.exit(0)