qr scanner: show error if not installed

2014-09-19 11:08:43 +02:00
parent 44464e7e21
commit 17006e5285
2 changed files with 7 additions and 2 deletions
--- a/lib/qrscanner.py
+++ b/lib/qrscanner.py
@@ -8,7 +8,7 @@ except ImportError:

 def scan_qr(config):
    if not zbar:
-        return
+        raise BaseException("The zbar package is not available.\nOn Linux, try 'sudo apt-get install python-zbar'")
    device = config.get("video_device", "default")
    if device == 'default':
        device = ''