Update app.py

app.py

@@ -101,8 +101,8 @@ def get_leaderboard_models():
     filenames = glob.glob(path + "/*.csv")
     data = []
     for filename in filenames:
-        dfs.append(pd.read_csv(filename))
-    leaderboard_data = pd.concat(dfs, ignore_index=True)
+        data.append(pd.read_csv(filename))
+    leaderboard_data = pd.concat(data, ignore_index=True)
     return leaderboard_data