diff -r c02818d7e29f -r 7e61baa047f0 editors/LDViewer.py
--- a/editors/LDViewer.py	Mon Aug 14 22:30:41 2017 +0300
+++ b/editors/LDViewer.py	Mon Aug 14 23:27:15 2017 +0300
@@ -28,6 +28,7 @@
 
 from Viewer import *
 
+
 def ExtractNextBlocks(block, block_list):
     current_list = [block]
     while len(current_list) > 0:
@@ -50,6 +51,7 @@
                         next_list.append(next)
         current_list = next_list
 
+
 def CalcBranchSize(elements, stops):
     branch_size = 0
     stop_list = stops
@@ -91,6 +93,7 @@
                 return 1
     return branch_size
 
+
 def RemoveElement(remove, element_tree):
     if remove in element_tree and element_tree[remove]:
         for child in element_tree[remove]["children"]:
@@ -99,6 +102,7 @@
         element_tree.pop(remove)
 ##        element_tree[remove] = None
 
+
 def GenerateTree(element, element_tree, stop_list):
     if element in element_tree:
         connectors = element.GetConnectors()
@@ -128,6 +132,7 @@
                         element_tree[next] = {"parents":[element], "children":[], "weight":None}
                         GenerateTree(next, element_tree, stop_list)
 
+
 def CalcWeight(element, element_tree):
     weight = 0
     parts = None
@@ -160,11 +165,10 @@
 #-------------------------------------------------------------------------------
 
 
-"""
-Class derived from Viewer class that implements a Viewer of Ladder Diagram
-"""
-
 class LD_Viewer(Viewer):
+    """
+    Class derived from Viewer class that implements a Viewer of Ladder Diagram
+    """
 
     def __init__(self, parent, tagname, window, controler, debug = False, instancepath = ""):
         Viewer.__init__(self, parent, tagname, window, controler, debug, instancepath)