--- a/dialogs/ActionBlockDialog.py	Tue Aug 15 22:38:43 2017 +0300
+++ b/dialogs/ActionBlockDialog.py	Wed Aug 16 11:47:27 2017 +0300
@@ -132,7 +132,7 @@
         top_sizer.AddGrowableCol(0)
         top_sizer.AddGrowableRow(0)
         main_sizer.AddSizer(top_sizer, border=20,
-              flag=wx.GROW|wx.TOP|wx.LEFT|wx.RIGHT)
+              flag=wx.GROW | wx.TOP | wx.LEFT | wx.RIGHT)
 
         actions_label = wx.StaticText(self, label=_('Actions:'))
         top_sizer.AddWindow(actions_label, flag=wx.ALIGN_BOTTOM)
@@ -154,12 +154,12 @@
         self.ActionsGrid.Bind(wx.grid.EVT_GRID_CELL_CHANGE,
                               self.OnActionsGridCellChange)
         main_sizer.AddSizer(self.ActionsGrid, border=20,
-              flag=wx.GROW|wx.LEFT|wx.RIGHT)
-
-        button_sizer = self.CreateButtonSizer(wx.OK|wx.CANCEL|wx.CENTRE)
+              flag=wx.GROW | wx.LEFT | wx.RIGHT)
+
+        button_sizer = self.CreateButtonSizer(wx.OK | wx.CANCEL | wx.CENTRE)
         self.Bind(wx.EVT_BUTTON, self.OnOK, button_sizer.GetAffirmativeButton())
         main_sizer.AddSizer(button_sizer, border=20,
-              flag=wx.ALIGN_RIGHT|wx.BOTTOM|wx.LEFT|wx.RIGHT)
+              flag=wx.ALIGN_RIGHT | wx.BOTTOM | wx.LEFT | wx.RIGHT)
 
         self.SetSizer(main_sizer)