Raise an exception when profile not found

Signed-off-by: Olivier Gayot <olivier.gayot@sigexec.com>

1 files changed, 8 insertions, 1 deletions

diff --git a/monitor-menu.py b/monitor-menu.py
index f810f9c..413b12d 100755
--- a/monitor-menu.py
+++ b/monitor-menu.py
@@ -19,6 +19,10 @@ import dialog
 import docopt
 
 
+class NoMatchingProfile(ValueError):
+    pass
+
+
 class MonitorMenu():
     def __init__(self, config_file='~/.config/monitor-profiles.json'):
         with open(expanduser(config_file)) as fh:
@@ -41,7 +45,10 @@ class MonitorMenu():
             if code in (self.d.ESC, self.d.CANCEL):
                 return
 
-        profile = self.profiles[int(profile_idx)]
+        try:
+            profile = self.profiles[int(profile_idx)]
+        except IndexError:
+            raise NoMatchingProfile from None
 
         # We build the command line starting from just "xrandr" and adding
         # arguments.