Update app.py

app.py

@@ -246,7 +246,7 @@ similars_tool: queries Pubchem for similar molecules based on the smiles string
 returns the names, SMILES strings, molecular weights and logP values for the similar molecules. \n \
 '
 
-  res = chat_model.invoke(prompt
+  res = chat_model.invoke(prompt)
   print(res)
 
   tool_choices = str(res).replace('smilars', 'similars').split('<|assistant|>')[1].split('#')[0].strip()