diff --git a/bin/g15ladi b/bin/g15ladi
index 030282a..ea1c2bc 100755
--- a/bin/g15ladi
+++ b/bin/g15ladi
@@ -194,8 +194,8 @@ class jackctl_g15:
                         status_line += " started in non-realtime mode"
                 else:
                     status_line += " stopped"
-        except Exception, e:
-            print repr(e)
+        except Exception as e:
+            print(repr(e))
             status_line = "JACK cannot be connected"
             if self.jack:
                 self.g15.clear(False)
diff --git a/bin/ladiconf b/bin/ladiconf
index 32b6082..3af4e0f 100755
--- a/bin/ladiconf
+++ b/bin/ladiconf
@@ -41,16 +41,16 @@ def check_ladish():
     try:
         proxy = laditools.ladish_proxy()
     except:
-        print "ladish proxy creation failed"
+        print("ladish proxy creation failed")
         return
 
     if not proxy.is_available():
-        print "ladish is not available"
+        print("ladish is not available")
         return
 
     if proxy.studio_is_loaded():
         if not proxy.studio_is_started():
-            print "ladish studio is loaded and not started"
+            print("ladish studio is loaded and not started")
             return
         else:
             msg = "JACK can only be configured with a stopped studio. Please stop your studio first."
@@ -240,7 +240,7 @@ class cell_renderer_param(gtk.GenericCellRenderer):
             else: 
                 self.set_property('mode', gtk.CELL_RENDERER_MODE_EDITABLE)
         else:
-            print pspec.name
+            print(pspec.name)
         setattr(self, pspec.name, value)
 
     def do_get_property(self, pspec):
@@ -335,7 +335,7 @@ class cell_renderer_param(gtk.GenericCellRenderer):
         if typechar == 'u' or typechar == 'i':
             try:
                 value = int(value_str)
-            except ValueError, e:
+            except ValueError as e:
                 # Hide the widget (because it may display something else than what user typed in)
                 widget.hide()
                 # Display the error
diff --git a/bin/ladilog b/bin/ladilog
index 9b72e35..6d8cef9 100755
--- a/bin/ladilog
+++ b/bin/ladilog
@@ -43,7 +43,7 @@ try:
     pygtk.require ('2.0')
     import gtk
     import vte
-except Exception, e:
+except Exception as e:
     error = gtk.MessageDialog (None, gtk.DIALOG_MODAL, gtk.MESSAGE_ERROR, gtk.BUTTONS_OK, _("You need to get you dependencies right before you run this program. Ask your package maintainer why this is happening to you\n%s") % repr(e))
     error.run ()
     exit (1)
@@ -113,9 +113,9 @@ class ladilog(object):
             # skip logfiles that dont exist
             if not os.access(log['logfile_path'], os.R_OK):
                 self.log_files.remove(log)
-                print _("Skipping '%s' because it does not exist") % log['logfile_path']
+                print(_("Skipping '%s' because it does not exist") % log['logfile_path'])
             else:
-                print _("Watching '%s'") % log['logfile_path']
+                print(_("Watching '%s'") % log['logfile_path'])
 
         max_lines_text = self.param_dict['max_lines']
         self.max_lines = int (max_lines_text)
@@ -149,9 +149,9 @@ class ladilog(object):
                     log["term"].feed(line)
 
             except ValueError:
-                print _("You called Popen with invalid arguments... dumbass")
+                print(_("You called Popen with invalid arguments... dumbass"))
             except:
-                print _("Unexpected error:"), sys.exc_info ()[0]
+                print(_("Unexpected error:"), sys.exc_info ()[0])
 
         for log in self.log_files:
             self.logview_notebook.append_page (log["term"])
@@ -191,7 +191,7 @@ class ladilog(object):
 
 try:
     ladilog().run()
-except Exception, e:
+except Exception as e:
     error = gtk.MessageDialog(None, gtk.DIALOG_MODAL, gtk.MESSAGE_ERROR, gtk.BUTTONS_OK, _("Unexpected error\n\n") + repr(e))
     error.run()
     exit(1)
diff --git a/bin/laditray b/bin/laditray
index 2c6df24..abf6203 100755
--- a/bin/laditray
+++ b/bin/laditray
@@ -107,7 +107,7 @@ class laditray (gtk.StatusIcon, laditools.manager):
                 self.set_tooltip_safe ("JACK is stopped")
                 self.set_icon ("stopped")
             self.clear_diagnose_text()
-        except Exception, e:
+        except Exception as e:
             self.set_tooltip_safe ("JACK is sick")
             self.set_diagnose_text(repr(e))
             self.set_icon ("stopped")
diff --git a/bin/wmladi b/bin/wmladi
index aa750ff..fd48ec3 100755
--- a/bin/wmladi
+++ b/bin/wmladi
@@ -144,10 +144,10 @@ class wmladi (wmoo.Application, laditools.manager):
                     self.clear_line(5)
                     self.started = False
             self.clear_diagnose_text()
-        except Exception, e:
+        except Exception as e:
             self.set_diagnose_text(repr(e))
             if debug:
-                print repr (e)
+                print(repr (e))
             self.set_line(0, "JACK")
             self.set_line(1, "is sick")
             self.clear_line(2)
diff --git a/laditools/TreeViewTooltips.py b/laditools/TreeViewTooltips.py
index 1112d3e..77963a6 100644
--- a/laditools/TreeViewTooltips.py
+++ b/laditools/TreeViewTooltips.py
@@ -292,7 +292,7 @@ class TreeViewTooltips:
     def get_tooltip(self, view, column, path):
         'See the module doc string for a description of this method'
         
-        raise NotImplemented, 'Subclass must implement get_tooltip()'
+        raise NotImplemented('Subclass must implement get_tooltip()')
 
 
 if __name__ == '__main__':
diff --git a/laditools/__init__.py b/laditools/__init__.py
index 5ec64c5..7ca3969 100644
--- a/laditools/__init__.py
+++ b/laditools/__init__.py
@@ -15,12 +15,12 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-from jack_controller import jack_controller
-from jack_configure import jack_configure
-from ladimenu import manager, find_data_file
-from a2j_controller import a2j_controller
-from a2j_menu import a2j_menu
-from ladish_controller import ladish_proxy
+from .jack_controller import jack_controller
+from .jack_configure import jack_configure
+from .ladimenu import manager, find_data_file
+from .a2j_controller import a2j_controller
+from .a2j_menu import a2j_menu
+from .ladish_controller import ladish_proxy
 # from error import error
-from config import config
-from TreeViewTooltips import TreeViewTooltips
+from .config import config
+from .TreeViewTooltips import TreeViewTooltips
diff --git a/laditools/a2j_controller.py b/laditools/a2j_controller.py
index 512a0c6..9d7ca5a 100644
--- a/laditools/a2j_controller.py
+++ b/laditools/a2j_controller.py
@@ -31,7 +31,7 @@ class a2j_controller:
         try:
             self.iface.is_started()
             return True
-        except Exception, e:
+        except Exception as e:
             #print repr(e)
             return False
 
diff --git a/laditools/config.py b/laditools/config.py
index ef858bb..fc0c7b6 100644
--- a/laditools/config.py
+++ b/laditools/config.py
@@ -25,7 +25,7 @@ from xdg import BaseDirectory as basedir
 config_dir = path.join(basedir.xdg_config_home, 'laditools')
 config_filename = path.join(config_dir, 'laditools.conf')
 if not exists (config_dir):
-    mkdir (config_dir, 0755)
+    mkdir (config_dir, 0o755)
 
 # Note to users of the config class. Only applications should create an instance
 # of the config object. The ladimenu is *NOT* an application...
diff --git a/laditools/jack_configure.py b/laditools/jack_configure.py
index 2c2ab51..53789ea 100644
--- a/laditools/jack_configure.py
+++ b/laditools/jack_configure.py
@@ -42,7 +42,7 @@ class jack_configure:
 #        self.bus.add_signal_receiver (self.name_owner_changed, dbus_interface = controller_interface_name, signal_name = "NameOwnerChanged")
 
     def name_owner_changed (name = None, old_owner = None, new_owner = None):
-        print "Name changed : %r" % name
+        print("Name changed : %r" % name)
 
     def get_selected_driver (self):
         isset, default, value = self.iface.GetParameterValue (['engine', 'driver'])
diff --git a/laditools/ladimenu.py b/laditools/ladimenu.py
index 6938b19..4912050 100644
--- a/laditools/ladimenu.py
+++ b/laditools/ladimenu.py
@@ -23,11 +23,11 @@ pygtk.require('2.0')
 import gtk
 import gobject
 import subprocess
-from config import config
-from jack_configure import jack_configure
-from jack_controller import jack_controller
-from a2j_controller import a2j_controller
-from ladish_controller import ladish_proxy
+from .config import config
+from .jack_configure import jack_configure
+from .jack_controller import jack_controller
+from .a2j_controller import a2j_controller
+from .ladish_controller import ladish_proxy
 
 # Default launcher menu :
 menu_default = [{"Configure": "ladiconf"},
@@ -239,7 +239,7 @@ class manager:
     def on_menu_command(self, widget, function):
         try:
             function()
-        except Exception, e:
+        except Exception as e:
             error = gtk.MessageDialog(None, gtk.DIALOG_MODAL, gtk.MESSAGE_ERROR, gtk.BUTTONS_OK, "Error executing " + repr(function) + "Unexpected error\n\n" + repr(e))
             error.run()
             error.destroy()
@@ -259,8 +259,8 @@ class manager:
                 item.show()
                 menu.append(item)
                 item.connect("button-release-event", function, studio) # "activate" is not used because of focus bug in pygtk
-        except Exception, e:
-            print e
+        except Exception as e:
+            print(e)
             self.menu_clear(menu)
             item = gtk.MenuItem("Error obtaining studio list")
             item.set_sensitive(False)
@@ -284,8 +284,8 @@ class manager:
 
         # Add the laucher entries at the beginning of the menu
         for items in self.menu_array:
-            menu_label = items.keys()[0] + "..."
-            path = items.values()[0]
+            menu_label = list(items.keys())[0] + "..."
+            path = list(items.values())[0]
             menu_items.append((gtk.ImageMenuItem(menu_label), self.on_menu_launcher, path))
 
         menu = gtk.Menu()
diff --git a/laditools/ladish_controller.py b/laditools/ladish_controller.py
index 14b34c6..99971ed 100644
--- a/laditools/ladish_controller.py
+++ b/laditools/ladish_controller.py
@@ -36,7 +36,7 @@ class ladish_proxy:
         try:
             self.control_iface.IsStudioLoaded()
             return True
-        except Exception, e:
+        except Exception as e:
             #print repr(e)
             return False