diff --git a/openpype/hosts/testhost/api/pipeline.py b/openpype/hosts/testhost/api/pipeline.py
index 442c6eeba0..a154ca18b7 100644
--- a/openpype/hosts/testhost/api/pipeline.py
+++ b/openpype/hosts/testhost/api/pipeline.py
@@ -1,6 +1,5 @@
 import os
 import json
-import collections
 
 
 class HostContext:
diff --git a/openpype/hosts/testhost/plugins/create/auto_creator.py b/openpype/hosts/testhost/plugins/create/auto_creator.py
index 40cab97839..c578fae74b 100644
--- a/openpype/hosts/testhost/plugins/create/auto_creator.py
+++ b/openpype/hosts/testhost/plugins/create/auto_creator.py
@@ -1,4 +1,3 @@
-from openpype import resources
 from openpype.hosts.testhost import api
 from openpype.pipeline import (
     AutoCreator,
diff --git a/openpype/hosts/testhost/plugins/publish/collect_instance_1.py b/openpype/hosts/testhost/plugins/publish/collect_instance_1.py
index eee12d02fb..3c035eccb6 100644
--- a/openpype/hosts/testhost/plugins/publish/collect_instance_1.py
+++ b/openpype/hosts/testhost/plugins/publish/collect_instance_1.py
@@ -1,8 +1,6 @@
 import json
 import pyblish.api
-from avalon import io
 
-from openpype.hosts.testhost import api
 from openpype.pipeline import (
     OpenPypePyblishPluginMixin,
     attribute_definitions
diff --git a/openpype/tools/new_publisher/constants.py b/openpype/tools/new_publisher/constants.py
index a44e425cfb..4cb93313ac 100644
--- a/openpype/tools/new_publisher/constants.py
+++ b/openpype/tools/new_publisher/constants.py
@@ -6,7 +6,7 @@ CONTEXT_LABEL = "Options"
 
 # Allowed symbols for subset name (and variant)
 # - characters, numbers, unsercore and dash
-SUBSET_NAME_ALLOWED_SYMBOLS = "a-zA-Z0-9_\."
+SUBSET_NAME_ALLOWED_SYMBOLS = "a-zA-Z0-9_."
 VARIANT_TOOLTIP = (
     "Variant may contain alphabetical characters (a-Z)"
     "\nnumerical characters (0-9) dot (\".\") or underscore (\"_\")."