Whitespace normalization.
diff --git a/Lib/encodings/__init__.py b/Lib/encodings/__init__.py
index a214190..66bea5c 100644
--- a/Lib/encodings/__init__.py
+++ b/Lib/encodings/__init__.py
@@ -120,4 +120,3 @@
 
 # Register the search_function in the Python codec registry
 codecs.register(search_function)
-
diff --git a/Lib/encodings/idna.py b/Lib/encodings/idna.py
index 7e4d04e..62aa450 100644
--- a/Lib/encodings/idna.py
+++ b/Lib/encodings/idna.py
@@ -19,10 +19,10 @@
             continue
         newlabel.append(stringprep.map_table_b2(c))
     label = u"".join(newlabel)
-    
+
     # Normalize
     label = unicodedata.normalize("NFKC", label)
-    
+
     # Prohibit
     for c in label:
         if stringprep.in_table_c12(c) or \
@@ -139,7 +139,7 @@
 
     # Step 8: return the result of step 5
     return result
-        
+
 ### Codec APIs
 
 class Codec(codecs.Codec):
@@ -156,7 +156,7 @@
         return ".".join(result), len(input)
 
     def decode(self,input,errors='strict'):
-        
+
         if errors != 'strict':
             raise UnicodeError, "Unsupported error handling "+errors
 
diff --git a/Lib/encodings/punycode.py b/Lib/encodings/punycode.py
index e7f2d45..82fd458 100644
--- a/Lib/encodings/punycode.py
+++ b/Lib/encodings/punycode.py
@@ -9,7 +9,7 @@
 ##################### Encoding #####################################
 
 def segregate(str):
-    """3.1 Basic code point segregation""" 
+    """3.1 Basic code point segregation"""
     base = []
     extended = {}
     for c in str:
@@ -66,7 +66,7 @@
             oldindex = index
             delta = 0
         oldchar = char
-            
+
     return result
 
 def T(j, bias):
@@ -103,7 +103,7 @@
         divisions += 36
     bias = divisions + (36 * delta // (delta + 38))
     return bias
-    
+
 
 def generate_integers(baselen, deltas):
     """3.4 Bias adaptation"""
@@ -155,7 +155,7 @@
             return extpos, result
         w = w * (36 - t)
         j += 1
-        
+
 
 def insertion_sort(base, extended, errors):
     """3.2 Insertion unsort coding"""
@@ -193,7 +193,7 @@
     base = unicode(base, "ascii", errors)
     extended = extended.upper()
     return insertion_sort(base, extended, errors)
-        
+
 ### Codec APIs
 
 class Codec(codecs.Codec):