Nicer handling of user keyboard interruption

tests/modparser.py

@@ -78,6 +78,7 @@ def mod_data(opts, full):
 
 def scan(opts):
     '''
+    Scan the provided root for python source files
     '''
     ret = {}
     for root, dirs, files in os.walk(opts['root']):
@@ -92,6 +93,7 @@ if __name__ == '__main__':
     if not HAS_ARGPARSE:
         print('The argparse python module is required')
     opts = parse()
+    try:
         scand = scan(opts)
         if opts['format'] == 'yaml':
             print(yaml.dump(scand))
@@ -99,3 +101,7 @@ if __name__ == '__main__':
             print(json.dumps(scand))
         else:
             pprint.pprint(scand)
+        exit(0)
+    except KeyboardInterrupt:
+        print('\nInterrupted on user request', file=sys.stderr)
+        exit(1)