also check for None in seconds property

JonnyJD · Oct 5, 2013 · 999900e · 999900e
1 parent 314c511
commit 999900e
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/discid/disc.py b/discid/disc.py
@@ -313,7 +313,10 @@ def sectors(self):
     @property
     def seconds(self):
         """Total length in seconds"""
-        return _sectors_to_seconds(self.sectors)
+        if self.sectors is None:
+            return None
+        else:
+            return _sectors_to_seconds(self.sectors)
 
     @property
     def mcn(self):