diff --git a/zenmap/radialnet/bestwidgets/boxes.py b/zenmap/radialnet/bestwidgets/boxes.py
index f93ee8d91..326bbf400 100644
--- a/zenmap/radialnet/bestwidgets/boxes.py
+++ b/zenmap/radialnet/bestwidgets/boxes.py
@@ -127,6 +127,9 @@
 
 import gtk
 
+__all__ = ('BWBox', 'BWHBox', 'BWVBox',
+        'BWStatusbar', 'BWTable', 'BWScrolledWindow')
+
 
 class BWBox(gtk.Box):
     """
diff --git a/zenmap/radialnet/gui/Application.py b/zenmap/radialnet/gui/Application.py
index 2796a574d..125a5203a 100644
--- a/zenmap/radialnet/gui/Application.py
+++ b/zenmap/radialnet/gui/Application.py
@@ -133,7 +133,7 @@ from radialnet.core.XMLHandler import XMLReader
 from radialnet.gui.ControlWidget import ControlWidget, ControlFisheye
 from radialnet.gui.Toolbar import Toolbar
 from radialnet.gui.Image import Pixmaps
-from radialnet.gui.RadialNet import *
+import radialnet.gui.RadialNet as RadialNet
 from radialnet.bestwidgets.windows import *
 from radialnet.bestwidgets.boxes import *
 
@@ -160,7 +160,7 @@ class Application(BWMainWindow):
         self.__hbox = BWHBox(spacing=0)
         self.__vbox = BWVBox(spacing=0)
 
-        self.__radialnet = RadialNet(LAYOUT_WEIGHTED)
+        self.__radialnet = RadialNet.RadialNet(RadialNet.LAYOUT_WEIGHTED)
         self.__control = ControlWidget(self.__radialnet)
         self.__fisheye = ControlFisheye(self.__radialnet)
         self.__toolbar = Toolbar(self.__radialnet,
diff --git a/zenmap/radialnet/gui/ControlWidget.py b/zenmap/radialnet/gui/ControlWidget.py
index 850662351..f3f627f00 100644
--- a/zenmap/radialnet/gui/ControlWidget.py
+++ b/zenmap/radialnet/gui/ControlWidget.py
@@ -133,7 +133,7 @@ import radialnet.util.geometry as geometry
 
 from radialnet.bestwidgets.boxes import *
 from radialnet.core.Coordinate import PolarCoordinate
-from radialnet.gui.RadialNet import *
+import radialnet.gui.RadialNet as RadialNet
 from radialnet.bestwidgets.expanders import BWExpander
 
 
@@ -207,7 +207,7 @@ class ControlAction(BWExpander):
         try_set_tooltip_text(self.__jump_to, 'Change focus')
         self.__jump_to.connect('toggled',
                                self.__change_pointer,
-                               POINTER_JUMP_TO)
+                               RadialNet.POINTER_JUMP_TO)
 
         try:
             # gtk.STOCK_INFO is available only in PyGTK 2.8 and later.
@@ -220,20 +220,20 @@ class ControlAction(BWExpander):
         try_set_tooltip_text(self.__info, 'Show information')
         self.__info.connect('toggled',
                             self.__change_pointer,
-                            POINTER_INFO)
+                            RadialNet.POINTER_INFO)
 
         self.__group = gtk.RadioToolButton(self.__jump_to, gtk.STOCK_ADD)
         try_set_tooltip_text(self.__group, 'Group children')
         self.__group.connect('toggled',
                              self.__change_pointer,
-                             POINTER_GROUP)
+                             RadialNet.POINTER_GROUP)
 
         self.__region = gtk.RadioToolButton(self.__jump_to,
                                             gtk.STOCK_SELECT_COLOR)
         try_set_tooltip_text(self.__region, 'Fill region')
         self.__region.connect('toggled',
                               self.__change_pointer,
-                              POINTER_FILL)
+                              RadialNet.POINTER_FILL)
 
         self.__region_color = gtk.combo_box_new_text()
         self.__region_color.append_text(_('Red'))
@@ -262,7 +262,7 @@ class ControlAction(BWExpander):
         if pointer != self.radialnet.get_pointer_status():
             self.radialnet.set_pointer_status(pointer)
 
-        if pointer == POINTER_FILL:
+        if pointer == RadialNet.POINTER_FILL:
             self.__region_color.show()
         else:
             self.__region_color.hide()
@@ -685,10 +685,10 @@ class ControlInterpolation(BWExpander):
                 self.__cartesian_radio, _('Polar'))
         self.__cartesian_radio.connect('toggled',
                                        self.__change_system,
-                                       INTERPOLATION_CARTESIAN)
+                                       RadialNet.INTERPOLATION_CARTESIAN)
         self.__polar_radio.connect('toggled',
                                    self.__change_system,
-                                   INTERPOLATION_POLAR)
+                                   RadialNet.INTERPOLATION_POLAR)
 
         self.__system_box = BWHBox()
         self.__system_box.bw_pack_start_noexpand_nofill(self.__polar_radio)
@@ -718,7 +718,7 @@ class ControlInterpolation(BWExpander):
         """
         active = self.radialnet.get_interpolation()
 
-        if active == INTERPOLATION_CARTESIAN:
+        if active == RadialNet.INTERPOLATION_CARTESIAN:
             self.__cartesian_radio.set_active(True)
 
         else:
@@ -733,7 +733,7 @@ class ControlInterpolation(BWExpander):
 
             active = self.radialnet.get_interpolation()
 
-            if active == INTERPOLATION_CARTESIAN:
+            if active == RadialNet.INTERPOLATION_CARTESIAN:
                 self.__cartesian_radio.set_active(True)
 
             else:
@@ -781,7 +781,7 @@ class ControlLayout(BWExpander):
     def __check_layout(self):
         """
         """
-        if self.__layout.get_active() == LAYOUT_WEIGHTED:
+        if self.__layout.get_active() == RadialNet.LAYOUT_WEIGHTED:
             self.__force.set_sensitive(True)
 
         else:
diff --git a/zenmap/zenmapGUI/TopologyPage.py b/zenmap/zenmapGUI/TopologyPage.py
index 7bd47188d..a6b7882ac 100644
--- a/zenmap/zenmapGUI/TopologyPage.py
+++ b/zenmap/zenmapGUI/TopologyPage.py
@@ -132,7 +132,7 @@ from zenmapGUI.ScanToolbar import *
 
 from zenmapGUI.higwidgets.higboxes import HIGVBox
 
-from radialnet.gui.RadialNet import *
+import radialnet.gui.RadialNet as RadialNet
 from radialnet.gui.ControlWidget import *
 from radialnet.gui.Toolbar import Toolbar
 from radialnet.bestwidgets.boxes import *
@@ -161,7 +161,7 @@ class TopologyPage(HIGVBox):
         self.rn_vbox = gtk.VBox()
 
         # RadialNet's widgets
-        self.radialnet = RadialNet(LAYOUT_WEIGHTED)
+        self.radialnet = RadialNet.RadialNet(RadialNet.LAYOUT_WEIGHTED)
         self.control = ControlWidget(self.radialnet)
         self.fisheye = ControlFisheye(self.radialnet)
         self.rn_toolbar = Toolbar(self.radialnet,