Update linked-lists-python.py

Author: pedropregueiro

linked-lists-python/linked-lists-python.py

@@ -49,7 +49,7 @@ def add_after(self, target_node_data, new_node):
             raise Exception("List is empty")
 
         for node in self:
-            if node.data == target_node_data:    
+            if node.data == target_node_data:
                 new_node.next = node.next
                 node.next = new_node
                 return