diff -r c74815729afd -r 691083b5682a dialogs/LDElementDialog.py
--- a/dialogs/LDElementDialog.py	Fri Aug 18 12:36:31 2017 +0300
+++ b/dialogs/LDElementDialog.py	Fri Aug 18 20:14:38 2017 +0300
@@ -51,18 +51,18 @@
         @param type: Type of LD element ('contact or 'coil')
         """
         BlockPreviewDialog.__init__(self, parent, controller, tagname,
-              title=(_("Edit Contact Values")
-                     if type == "contact"
-                     else _("Edit Coil Values")))
+                                    title=(_("Edit Contact Values")
+                                           if type == "contact"
+                                           else _("Edit Coil Values")))
 
         # Init common sizers
-        self._init_sizers(2, 0,
-              (7 if type == "contact" else 9), None, 2, 1)
+        self._init_sizers(2, 0, (7 if type == "contact" else 9),
+                          None, 2, 1)
 
         # Create label for LD element modifier
         modifier_label = wx.StaticText(self, label=_('Modifier:'))
         self.LeftGridSizer.AddWindow(modifier_label, border=5,
-              flag=wx.GROW | wx.BOTTOM)
+                                     flag=wx.GROW | wx.BOTTOM)
 
         # Create radio buttons for selecting LD element modifier
         self.ModifierRadioButtons = {}
@@ -79,7 +79,7 @@
 
         for modifier, label in zip(element_modifiers, modifiers_label):
             radio_button = wx.RadioButton(self, label=label,
-                  style=(wx.RB_GROUP if first else 0))
+                                          style=(wx.RB_GROUP if first else 0))
             radio_button.SetValue(first)
             self.Bind(wx.EVT_RADIOBUTTON, self.OnModifierChanged, radio_button)
             self.LeftGridSizer.AddWindow(radio_button, flag=wx.GROW)
@@ -89,7 +89,7 @@
         # Create label for LD element variable
         element_variable_label = wx.StaticText(self, label=_('Variable:'))
         self.LeftGridSizer.AddWindow(element_variable_label, border=5,
-              flag=wx.GROW | wx.TOP)
+                                     flag=wx.GROW | wx.TOP)
 
         # Create a combo box for defining LD element variable
         self.ElementVariable = wx.ComboBox(self, style=wx.CB_SORT)
@@ -98,7 +98,7 @@
         self.Bind(wx.EVT_TEXT, self.OnVariableChanged,
                   self.ElementVariable)
         self.LeftGridSizer.AddWindow(self.ElementVariable, border=5,
-             flag=wx.GROW | wx.TOP)
+                                     flag=wx.GROW | wx.TOP)
 
         # Add preview panel and associated label to sizers
         self.RightGridSizer.AddWindow(self.PreviewLabel, flag=wx.GROW)
@@ -106,7 +106,7 @@
 
         # Add buttons sizer to sizers
         self.MainSizer.AddSizer(self.ButtonSizer, border=20,
-              flag=wx.ALIGN_RIGHT | wx.BOTTOM | wx.LEFT | wx.RIGHT)
+                                flag=wx.ALIGN_RIGHT | wx.BOTTOM | wx.LEFT | wx.RIGHT)
 
         # Save LD element class
         self.ElementClass = (LD_Contact if type == "contact" else LD_Coil)