Update app.py

app.py

@@ -102,6 +102,7 @@ def smiles_node(state: State) -> State:
     name = state["query_name"]
     res = pcp.get_compounds(name, "name")
     smiles = res[0].smiles
+    smiles = smiles.replace('#','~')
     smiles_string = f'The SMILES string for the molecule is: {smiles}\n'
   except:
     smiles = "unknown"