diff --git a/examples/show_butterfly.py b/examples/show_butterfly.py
index 294084a..875afe5 100755
--- a/examples/show_butterfly.py
+++ b/examples/show_butterfly.py
@@ -23,7 +23,8 @@ import gammalib
 try:
     import matplotlib.pyplot as plt
 except:
-    sys.exit('This script needs the "matplotlib" module')
+    print('This script needs the "matplotlib" module')
+    sys.exit()
 
 
 # ============ #
diff --git a/examples/show_model.py b/examples/show_model.py
index 25d415a..d92a6cc 100755
--- a/examples/show_model.py
+++ b/examples/show_model.py
@@ -24,7 +24,8 @@ import gammalib
 try:
     import matplotlib.pyplot as plt
 except:
-    sys.exit('This script needs the "matplotlib" module')
+    print('This script needs the "matplotlib" module')
+    sys.exit()
 
 
 # ======================= #
diff --git a/examples/show_pha.py b/examples/show_pha.py
index e070435..b68c14c 100755
--- a/examples/show_pha.py
+++ b/examples/show_pha.py
@@ -24,7 +24,8 @@ import gammalib
 try:
     import matplotlib.pyplot as plt
 except:
-    sys.exit('This script needs the "matplotlib" module')
+    print('This script needs the "matplotlib" module')
+    sys.exit()
 
 
 # ================= #
diff --git a/examples/show_pull_evolution.py b/examples/show_pull_evolution.py
index 8361cda..22a47ec 100755
--- a/examples/show_pull_evolution.py
+++ b/examples/show_pull_evolution.py
@@ -23,11 +23,13 @@ import csv
 try:
     import matplotlib.pyplot as plt
 except:
-    sys.exit('This script needs the "matplotlib" module')
+    print('This script needs the "matplotlib" module')
+    sys.exit()
 try:
     import numpy as np
 except:
-    sys.exit('This script needs the "numpy" module')
+    print('This script needs the "numpy" module')
+    sys.exit()
 
 
 # ====================== #
diff --git a/examples/show_pull_histogram.py b/examples/show_pull_histogram.py
index 76aef81..957cced 100755
--- a/examples/show_pull_histogram.py
+++ b/examples/show_pull_histogram.py
@@ -24,11 +24,13 @@ try:
     import matplotlib.pyplot as plt
     import matplotlib.mlab as mlab
 except:
-    sys.exit('This script needs the "matplotlib" module')
+    print('This script needs the "matplotlib" module')
+    sys.exit()
 try:
     import numpy as np
 except:
-    sys.exit('This script needs the "numpy" module')
+    print('This script needs the "numpy" module')
+    sys.exit()
 
 
 # ====================== #