Update interfaces/iupac2smiles.py

interfaces/iupac2smiles.py

@@ -3,7 +3,7 @@ from utils import ChemicalConverter, validate_smiles2iupac, plot_mol, login
 
 def convert(access_code, chemical_name, plot):
     if not login(access_code):
-        return "Currently, you don't have access to the service.", None
+        return "Currently, you don't have access to the service.", ""
     # Initialize the ChemicalConverter
     converter = ChemicalConverter(mode="IUPAC2SMILES")
     converted_name = ""
@@ -18,7 +18,7 @@ iupac2smiles = gr.Interface(
     fn=convert,
     allow_flagging='auto',
     inputs=[
-        gr.Textbox(label="Enter your access code", placeholder="", default=None),
+        gr.Textbox(label="Enter your access code", placeholder=""),
         gr.Textbox(label="Enter your IUPAC name", placeholder="Enter IUPAC name here"),
         gr.Checkbox(label="Plot molecule", value=True)
     ],