Update app.py

app.py

@@ -47,7 +47,7 @@ def update(inp, file, mode, custom_resids, clustering_threshold):
                     f"http://files.rcsb.org/download/{pdb_file.lower()}.pdb1",
                     f"files/{pdb_file}.pdb",
                 )
-            filepath = f"files/{pdb_file}.pdb"
+                filepath = f"files/{pdb_file}.pdb"
             else:
                 return "pdb code must be 4 letters or Uniprot code does not match", ""