From 93c2e72cc7b42c4dec4858babcb2e2a43c05c4dc Mon Sep 17 00:00:00 2001
From: hzy46 <362583303@qq.com>
Date: Wed, 3 Nov 2021 16:51:30 +0800
Subject: [PATCH] fux

---
 python-package/lightgbm/basic.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/python-package/lightgbm/basic.py b/python-package/lightgbm/basic.py
index 9af3e680c732..812fd82a5d97 100644
--- a/python-package/lightgbm/basic.py
+++ b/python-package/lightgbm/basic.py
@@ -1769,7 +1769,8 @@ def __init_from_csc(self, csc, params_str, ref_dataset):
 
     @staticmethod
     def _compare_params_for_warning(params, other_params):
-        """ Compare params.
+        """Compare params.
+
         It is only for the warning purpose. Thus some keys are ignored.
 
         Returns
@@ -1778,6 +1779,10 @@ def _compare_params_for_warning(params, other_params):
           If they are equal, return True; Otherwise, return False.
         """
         ignore_keys = _ConfigAliases.get("categorical_feature")
+        if params is None:
+            params = {}
+        if other_params is None:
+            other_params = {}
         for k in other_params:
             if k not in ignore_keys:
                 if k not in params or params[k] != other_params[k]: