PEP fixes

InvenTree/plugin/admin.py

@@ -2,11 +2,11 @@
 from __future__ import unicode_literals
 
 from django.contrib import admin
-from django.apps import apps
 
 import plugin.models as models
 from plugin import plugin_reg
 
+
 def plugin_update(queryset, new_status: bool):
     """general function for bulk changing plugins"""
     apps_changed = False

InvenTree/plugin/models.py

@@ -7,7 +7,6 @@ from __future__ import unicode_literals
 
 from django.utils.translation import gettext_lazy as _
 from django.db import models
-from django.apps import apps
 
 from plugin import plugin_reg