[tanken] specify expected Errors

1 files changed, 1 insertions, 1 deletions

diff --git a/tanken.py b/tanken.py
index 303e3b3..b19fb53 100644
--- a/tanken.py
+++ b/tanken.py
@@ -10,7 +10,7 @@ def tanken(drives, cost, service_charge=0):
     for d in drives:
         try:
             d[0] = int(d[0])
-        except:
+        except (IndexError, ValueError):
             return None, "Lines have to start with the driven distance!"
 
         # calculate overall distance