Index: compat2and3.py
==================================================================
--- compat2and3.py
+++ compat2and3.py
@@ -21,10 +21,11 @@
     PY3 = 0
 
     # basic functions
     xrange = xrange
     range = xrange
+    unicode = unicode
 
     # urllib modules
     import urllib
     import urllib2
     from urllib import urlencode
@@ -42,10 +43,11 @@
     PY2 = 0
     PY3 = 1
 
     # basic functions
     xrange = range
+    unicode = str
 
     # urllib modules
     import urllib.request as urllib
     import urllib.request as urllib2
     from urllib.parse import urlencode

Index: help/streamtuner2.1
==================================================================
--- help/streamtuner2.1
+++ help/streamtuner2.1
@@ -1,6 +1,5 @@
-.\" this is one of the nanoweb man pages
 .\" (many thanks to the manpage howto!)
 .\"
 .TH streamtuner2 "January 2014" "BSD/Linux" "User Manuals"
 .SH NAME
 streamtuner2 \- Browser for internet radio stations
@@ -58,14 +57,23 @@
 returns all info about the first match as JSON output.
 .TP
 .BI streamtuner2 " play frequence3"
 Looks for the first occourence, and starts the audio player for FREQUENCE3.
 
+
+.SH GRAPHICAL MODE
+
+There's only one option for the graphical UI mode:
+.TP
+.BI --gtk3
+Loads Gtk3 via PyGI instead of Gtk2. This is implicit when running on Python3
+anyway.
+
 
 .SH FILES
 .IR /home/ $USER /.config/streamtuner2/settings.json
 .SH "SEE ALSO"
 .BR streamripper (1) 
 .BR audacious (1)
 .BR json (5)
 .BR m3u (5)
 .BR pls (5)

Index: mygtk.py
==================================================================
--- mygtk.py
+++ mygtk.py
@@ -32,19 +32,17 @@
 # filesystem
 import os.path
 import copy
 import sys
 
-if sys.version_info[0] >= 3:
-    unicode = str
+from compat2and3 import unicode, xrange, PY3
 
 
-# gtk version
-ver = 2   # 2=gtk2, 3=gtk3
-if "--gtk3" in sys.argv:
-    ver = 3
-if sys.version_info >= (3, 0):
+# gtk version (2=gtk2, 3=gtk3)
+ver = 2
+# if running on Python3 or with commandline flag
+if PY3 or "--gtk3" in sys.argv:
     ver = 3
 # load gtk modules
 if ver==3:
     from gi import pygtkcompat as pygtk
     pygtk.enable() 
@@ -51,24 +49,21 @@
     pygtk.enable_gtk(version='3.0')
     from gi.repository import Gtk as gtk
     from gi.repository import GObject as gobject
     from gi.repository import GdkPixbuf
     ui_file = "gtk3.xml"
+    empty_pixbuf = GdkPixbuf.Pixbuf.new_from_data(b"\0\0\0\0", GdkPixbuf.Colorspace.RGB, True, 8, 1, 1, 4, None, None)
     __print__(dbg.PROC, gtk)
     __print__(dbg.PROC, gobject)
 else:
     import pygtk
     import gtk
     import gobject
     ui_file = "gtk2.xml"
+    empty_pixbuf = gtk.gdk.pixbuf_new_from_data(b"\0\0\0\0",gtk.gdk.COLORSPACE_RGB,True,8,1,1,4)
 
 
-try:
-  empty_pixbuf = gtk.gdk.pixbuf_new_from_data(b"\0\0\0\0",gtk.gdk.COLORSPACE_RGB,True,8,1,1,4)
-except:
-  empty_pixbuf = GdkPixbuf.Pixbuf.new_from_data(b"\0\0\0\0", GdkPixbuf.Colorspace.RGB, True, 8, 1, 1, 4, None, None)
-
 
 
 # simplified gtk constructors               ---------------------------------------------
 class mygtk:
 
@@ -114,11 +109,11 @@
                     if (desc[1] > 0):
                         col.set_sizing(gtk.TREE_VIEW_COLUMN_FIXED)
                         col.set_fixed_width(desc[1])
 
                     # loop through cells
-                    for var in range(2, len(desc)):
+                    for var in xrange(2, len(desc)):
                         cell = desc[var]
                         # cell renderer
                         if (cell[2] == "pixbuf"):
                             rend = gtk.CellRendererPixbuf()  # img cell
                             if (cell[1] == str):
@@ -156,11 +151,11 @@
                 #- expand datamap            
                 vartypes = []  #(str, str, bool, str, int, int, gtk.gdk.Pixbuf, str, int)
                 rowmap = []    #["title", "desc", "bookmarked", "name", "count", "max", "img", ...]
                 if (not rowmap):
                     for desc in datamap:
-                        for var in range(2, len(desc)):
+                        for var in xrange(2, len(desc)):
                             vartypes.append(desc[var][1])  # content types
                             rowmap.append(desc[var][0])    # dict{} column keys in entries[] list
                 # create gtk array storage
                 ls = gtk.ListStore(*vartypes)   # could be a TreeStore, too
                 __print__(vartypes)

Index: pson.py
==================================================================
--- pson.py
+++ pson.py
@@ -20,13 +20,11 @@
 
 
 #-- reading and writing json (for the config module)  ----------------------------------
 
 import sys
-if sys.version_info > (2, 9):
-    unicode = str
-    #dict.iteritems = dict.items
+from compat2and3 import unicode
 
 # try to load the system module first
 try:
         from json import dump as json_dump, load as json_load
 except: