diff --git a/client/ayon_core/hosts/max/api/lib.py b/client/ayon_core/hosts/max/api/lib.py
index d9a3af3336..0e3abe25ec 100644
--- a/client/ayon_core/hosts/max/api/lib.py
+++ b/client/ayon_core/hosts/max/api/lib.py
@@ -6,12 +6,9 @@ import json
 from typing import Any, Dict, Union
 
 import six
-import ayon_api
 
 from ayon_core.pipeline import (
     get_current_project_name,
-    get_current_folder_path,
-    get_current_task_name,
     colorspace
 )
 from ayon_core.settings import get_project_settings
diff --git a/client/ayon_core/hosts/maya/plugins/create/create_animation_pointcache.py b/client/ayon_core/hosts/maya/plugins/create/create_animation_pointcache.py
index 08d50a1ab8..069762e4ae 100644
--- a/client/ayon_core/hosts/maya/plugins/create/create_animation_pointcache.py
+++ b/client/ayon_core/hosts/maya/plugins/create/create_animation_pointcache.py
@@ -6,7 +6,6 @@ from ayon_core.lib import (
     BoolDef,
     NumberDef,
 )
-from ayon_core.pipeline import CreatedInstance
 
 
 def _get_animation_attr_defs(cls):
diff --git a/client/ayon_core/hosts/traypublisher/csv_publish.py b/client/ayon_core/hosts/traypublisher/csv_publish.py
index b43792a357..2762172936 100644
--- a/client/ayon_core/hosts/traypublisher/csv_publish.py
+++ b/client/ayon_core/hosts/traypublisher/csv_publish.py
@@ -1,5 +1,3 @@
-import os
-
 import pyblish.api
 import pyblish.util
 
diff --git a/client/ayon_core/modules/deadline/plugins/publish/submit_publish_job.py b/client/ayon_core/modules/deadline/plugins/publish/submit_publish_job.py
index 06dd62e18b..0f505dce78 100644
--- a/client/ayon_core/modules/deadline/plugins/publish/submit_publish_job.py
+++ b/client/ayon_core/modules/deadline/plugins/publish/submit_publish_job.py
@@ -467,8 +467,6 @@ class ProcessSubmittedJobOnFarm(pyblish.api.InstancePlugin,
 
         # Inject deadline url to instances to query DL for job id for overrides
         for inst in instances:
-            if not "deadline" in inst:
-                inst["deadline"] = {}
             inst["deadline"] = instance.data["deadline"]
 
         # publish job file
diff --git a/client/ayon_core/modules/deadline/plugins/publish/validate_deadline_pools.py b/client/ayon_core/modules/deadline/plugins/publish/validate_deadline_pools.py
index 5094b3deaf..2fb511bf51 100644
--- a/client/ayon_core/modules/deadline/plugins/publish/validate_deadline_pools.py
+++ b/client/ayon_core/modules/deadline/plugins/publish/validate_deadline_pools.py
@@ -72,7 +72,7 @@ class ValidateDeadlinePools(OptionalPyblishPluginMixin,
                                                       auth=auth,
                                                       log=self.log)
             # some DL return "none" as a pool name
-            if not "none" in pools:
+            if "none" not in pools:
                 pools.append("none")
             self.log.info("Available pools: {}".format(pools))
             self.pools_per_url[deadline_url] = pools