grabber.py: Don't blow up if incorrect numbers are typed

diff --git a/grabber.py b/grabber.py
index 9879043f0824c836f34d1ffea87b840e66e42641..7d27ddba64b9f1f08a012144800a90d5dbd73e15 100755 (executable)
--- a/grabber.py
+++ b/grabber.py
@@ -17,7 +17,7 @@ def choose(options, allow_multi):
                                continue
                        if 0 in values:
                                return
-                       values = [reverse_map[value] for value in values]
+                       values = [reverse_map[value] for value in values if value in reverse_map]
                        if allow_multi:
                                return values
                        else: