slightly improved error message, partially addresses #1

applied-bioinformatics · Jan 15, 2016 · ae9fd9f · ae9fd9f
1 parent 9cbfb18
commit ae9fd9f
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/biab/util.py b/biab/util.py
@@ -63,7 +63,10 @@ def handle_starttag(self, tag, attrs):
         raise Exception("Invalid ID for section")
 
     def get_id(self):
-        return self._ID
+        try:
+            return self._ID
+        except AttributeError:
+            raise ValueError("A section is missing its ID.")
 
 class Node(object):