fix warning when executing getAvailableCellModels

Author: facu.r

netpyne_ui/netpyne_geppetto.py

@@ -348,17 +348,19 @@ def getAvailablePops(self):
     def getAvailableCellModels(self):
         cellModels = set([])
         for p in netParams.popParams:
-            cm = netParams.popParams[p]['cellModel']
-            if cm not in cellModels:
-                cellModels.add(cm)
+            if 'cellModel' in netParams.popParams[p]:
+                cm = netParams.popParams[p]['cellModel']
+                if cm not in cellModels:
+                    cellModels.add(cm)
         return cellModels
 
     def getAvailableCellTypes(self):
         cellTypes = set([])
         for p in netParams.popParams:
-            ct = netParams.popParams[p]['cellType']
-            if ct not in cellTypes:
-                cellTypes.add(ct)
+            if 'celltype' in netParams.popParams[p]:
+                ct = netParams.popParams[p]['cellType']
+                if ct not in cellTypes:
+                    cellTypes.add(ct)
         return cellTypes
 
     def getAvailableSections(self):