tools/qvm-features: fix handling empty list of features

2017-01-14 05:02:56 +01:00 · 2017-01-14 05:02:56 +01:00 · 0c43329188
commit 0c43329188
parent 98edc9779c
1 changed files with 4 additions and 0 deletions
--- a/qubes/tools/qvm_features.py
+++ b/qubes/tools/qvm_features.py
@ -70,6 +70,10 @@ def main(args=None):
        if args.delete:
            parser.error('--unset requires a feature')

+        if not vm.features:
+            # max doesn't like empty list
+            return 0
+
        width = max(len(feature) for feature in vm.features)
        for feature in sorted(vm.features):
            print('{name:{width}s}  {value}'.format(