default to some value for empty sequences

joschabach · Apr 18, 2016 · 53ccb16 · 53ccb16
1 parent 52b5314
commit 53ccb16
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/micropsi_core/nodenet/theano_engine/theano_nodenet.py b/micropsi_core/nodenet/theano_engine/theano_nodenet.py
@@ -466,7 +466,8 @@ def merge_data(self, nodenet_data, keep_uids=False, native_module_instances_only
         uidmap[self.rootpartition.rootnodespace_uid] = self.rootpartition.rootnodespace_uid
 
         # make sure we have the partition NoNs large enough to store the native modules:
-        node_maxindex = max(n['index'] for n in nodenet_data.get('nodes', {}).values())
+        indexes = [n['index'] for n in nodenet_data.get('nodes', {}).values()]
+        node_maxindex = max(indexes) if indexes else 10
         if self.rootpartition.NoN <= node_maxindex:
             self.rootpartition.grow_number_of_nodes((node_maxindex - self.rootpartition.NoN) + 1)