diff --git a/lang/python/docs/dita/howto/part06/group-lines.dita b/lang/python/docs/dita/howto/part06/group-lines.dita
index 50d63df0..f4aca74c 100644
--- a/lang/python/docs/dita/howto/part06/group-lines.dita
+++ b/lang/python/docs/dita/howto/part06/group-lines.dita
@@ -22,11 +22,13 @@ for i in range(len(lines)):
 
 groups = line.split(":")[-1].replace('"', '').split(',')
 
-group_lines = groups
-for i in range(len(group_lines)):
-    group_lines[i] = group_lines[i].split("=")
+group_lines = []
+group_lists = []
+
+for i in range(len(groups)):
+    group_lines.append(groups[i].split("="))
+    group_lists.append(groups[i].split("="))
 
-group_lists = group_lines
 for i in range(len(group_lists)):
     group_lists[i][1] = group_lists[i][1].split()
 </codeblock>