Update app.py

app.py

@@ -49,7 +49,8 @@ def convert(file):
             try:
                 obj = joblib.load(in_file)
             except:
-                obj = pickle.load(in_file)
+                with open(in_file, "rb") as f:
+                    obj = pickle.load(f)
 
             if "." in in_file.name:
                 out_file = ".".join(in_file.name.split(".")[:-1])