Update app.py

app.py

@@ -101,13 +101,13 @@ def opt_process(opt_input):
     smis_input = sf.decoder(input)
     mols_input = []
     mol = Chem.MolFromSmiles(smis_input)
-    mols_input.append(mol)
+    mol_input.append(mol)
     
     opt_input_img = Draw.MolsToGridImage(
-        mols_input,
+        mol_input,
         molsPerRow=4,
         subImgSize=(200,200),
-        legends=['' for x in mols]
+        legends=['' for x in mol_input]
     )
     
     sf_input = tokenizer(input, return_tensors="pt")