Update app.py

app.py

@@ -231,7 +231,7 @@ def handler(file: BinaryIO, algorithm: str, filtered: bool, truncated: bool, see
 
     df_result['rank'] = df_result['score'].rank(na_option='bottom', ascending=False).astype(int)
 
-    df_result.fillna(np.NINF, inplace=True)
+    df_result.fillna(-np.inf, inplace=True)
     df_result.sort_values(by=['rank', 'score'], ascending=[True, False], inplace=True)
     df_result.reset_index(inplace=True)