Update app.py

app.py

@@ -130,7 +130,7 @@ def similars_node(state: State) -> State:
   print(state['query_name'])
   try:
   #while x == 2:
-    if (state['query_smiles'] != None):
+    if (state['query_smiles'] != None) and (state['query_smiles'] != '') and (state['query_smiles'] != 'none'):
       try:
         smiles = state["query_smiles"]
         print('trying with smiles')
@@ -139,7 +139,7 @@ def similars_node(state: State) -> State:
         print('got similar molecules with smiles')
       except:
         print('No SMILES.')
-    elif (state['query_name'] != None):
+    elif (state['query_name'] != None) and (state['query_name'] != '') and (state['query_name'] != 'none'):
       try:
         name = state["query_name"]
         print('trying with name', name)