Update app.py

app.py

@@ -189,8 +189,9 @@ def rgb_to_hex(rgb):
     return '#{:02x}{:02x}{:02x}'.format(rgb[0], rgb[1], rgb[2])
 
 
-def mol_to_pharm3d(mol, mode='html'):
-    print('pharmco')
+def mol_to_pharm3d(mol):
+    if mol is None:
+        return
     AllChem.Compute2DCoords(mol)
 
     feats = FEAT_FACTORY.GetFeaturesForMol(mol)