diff --git a/ignite/distributed/comp_models/native.py b/ignite/distributed/comp_models/native.py
index 2d19e54a0fb4..4fcde6626684 100644
--- a/ignite/distributed/comp_models/native.py
+++ b/ignite/distributed/comp_models/native.py
@@ -331,8 +331,8 @@ def spawn(  # type: ignore[override]
         def _do_all_reduce(self, tensor: torch.Tensor, op: str = "SUM") -> torch.Tensor:
             if op not in self._reduce_op_map:
                 raise ValueError("Unsupported reduction operation: '{}'".format(op))
-            op = self._reduce_op_map[op]
-            dist.all_reduce(tensor, op)
+            reduce_op = self._reduce_op_map[op]
+            dist.all_reduce(tensor, reduce_op)
             return tensor
 
         def _do_all_gather(self, tensor: torch.Tensor) -> torch.Tensor:
diff --git a/ignite/handlers/checkpoint.py b/ignite/handlers/checkpoint.py
index b793f4fd659c..3090b8eac5f3 100644
--- a/ignite/handlers/checkpoint.py
+++ b/ignite/handlers/checkpoint.py
@@ -4,7 +4,7 @@
 import tempfile
 import warnings
 from abc import ABCMeta, abstractmethod
-from collections import OrderedDict, namedtuple
+from collections import OrderedDict
 from tempfile import _TemporaryFileWrapper  # type: ignore[attr-defined]
 from typing import Any, Callable, Dict, List, Mapping, NamedTuple, Optional, Tuple, Union