--- a/Code/Maths/mathsin2.py
+++ b/Code/Maths/mathsin2.py
@@ -1,4 +1,4 @@
-Example math2.py
+#Example math2.py
 
 import math as m   # Give another madule name
 print m.sin(0.5)   # Refer by the new name
--- a/Code/Maths/plot2.py
+++ b/Code/Maths/plot2.py
@@ -1,4 +1,4 @@
-Example plot2.py
+#Example plot2.py
 
 from pylab import *
 x = [1,2,5]
--- a/Code/PythonBook/chap2/mathsin2.py
+++ b/Code/PythonBook/chap2/mathsin2.py
@@ -1,4 +1,4 @@
-Example math2.py
+#Example math2.py
 
 import math as m   # Give another madule name
 print m.sin(0.5)   # Refer by the new name
--- a/Code/PythonBook/chap4/plot2.py
+++ b/Code/PythonBook/chap4/plot2.py
@@ -1,4 +1,4 @@
-Example plot2.py
+#Example plot2.py
 
 from pylab import *
 x = [1,2,5]