Fixed linters

Author: barshaul

redis/asyncio/cluster.py

@@ -707,7 +707,7 @@ async def _execute_command(
                 return await target_node.execute_command(*args, **kwargs)
             except (BusyLoadingError, MaxConnectionsError):
                 raise
-            except (ConnectionError, TimeoutError) as e:
+            except (ConnectionError, TimeoutError):
                 # Connection retries are being handled in the node's
                 # Retry object.
                 # Remove the failed node from the startup nodes before we try
@@ -1163,8 +1163,8 @@ async def initialize(self) -> None:
 
         if not startup_nodes_reachable:
             raise RedisClusterException(
-                f"Redis Cluster cannot be connected. Please provide at least "
-                f"one reachable node"
+                "Redis Cluster cannot be connected. Please provide at least "
+                "one reachable node"
             ) from exception
 
         # Check if the slots are not fully covered

redis/cluster.py

@@ -1,4 +1,3 @@
-import copy
 import random
 import socket
 import sys
@@ -474,8 +473,9 @@ def __init__(
              If you use dynamic DNS endpoints for startup nodes but CLUSTER SLOTS lists
              specific IP addresses, it is best to set it to false.
         :param cluster_error_retry_attempts:
-             Number of times to retry before raising an error when :class:`~.TimeoutError`
-             or :class:`~.ConnectionError` or :class:`~.ClusterDownError` are encountered
+             Number of times to retry before raising an error when
+             :class:`~.TimeoutError` or :class:`~.ConnectionError` or
+             :class:`~.ClusterDownError` are encountered
         :param connection_error_retry_attempts:
             Number of times to retry before reinitializing when :class:`~.TimeoutError`
             or :class:`~.ConnectionError` are encountered.
@@ -1510,8 +1510,8 @@ def initialize(self):
 
         if not startup_nodes_reachable:
             raise RedisClusterException(
-                f"Redis Cluster cannot be connected. Please provide at least "
-                f"one reachable node"
+                "Redis Cluster cannot be connected. Please provide at least "
+                "one reachable node"
             ) from exception
 
         # Create Redis connections to all nodes

tests/test_asyncio/test_cluster.py

@@ -14,7 +14,7 @@
 from redis.asyncio.connection import Connection, SSLConnection
 from redis.asyncio.parser import CommandsParser
 from redis.asyncio.retry import Retry
-from redis.backoff import get_default_backoff, ExponentialBackoff, NoBackoff
+from redis.backoff import ExponentialBackoff, NoBackoff, get_default_backoff
 from redis.cluster import PIPELINE_BLOCKED_COMMANDS, PRIMARY, REPLICA, get_node_name
 from redis.crc import REDIS_CLUSTER_HASH_SLOTS, key_slot
 from redis.exceptions import (