diff --git a/examples/demo_opts.py b/examples/demo_opts.py
index d215eb2..e3ed18a 100755
--- a/examples/demo_opts.py
+++ b/examples/demo_opts.py
@@ -14,7 +14,7 @@
     format='%(asctime)-15s - %(message)s'
 )
 # ignore PIL debug messages
-logging.getLogger("PIL").setLevel(logging.ERROR)
+logging.getLogger('PIL').setLevel(logging.ERROR)
 
 
 def display_settings(args):
@@ -56,12 +56,12 @@ def get_device(actual_args=None):
         config = cmdline.load_config(args.config)
         args = parser.parse_args(config + actual_args)
 
+    print(display_settings(args))
+
     # create device
     try:
         device = cmdline.create_device(args)
     except error.Error as e:
         parser.error(e)
 
-    print(display_settings(args))
-
     return device
diff --git a/examples/sevensegment_demo.py b/examples/sevensegment_demo.py
index 22d97d1..90ff72b 100755
--- a/examples/sevensegment_demo.py
+++ b/examples/sevensegment_demo.py
@@ -7,6 +7,7 @@
 Example for seven segment displays.
 """
 
+import sys
 import time
 from datetime import datetime
 
@@ -68,6 +69,11 @@ def show_message_alt(seg, msg, delay=0.1):
 def main():
     # create seven segment device
     device = get_device()
+
+    if not hasattr(device, 'segment_mapper'):
+        sys.exit('sevensegment is not supported on a {} device'.format(
+            device.__class__.__name__))
+
     seg = sevensegment(device)
 
     print('Simple text...')