small fixes

InvenTree/InvenTree/helpers.py

@@ -14,6 +14,7 @@ from wsgiref.util import FileWrapper
 from django.http import StreamingHttpResponse
 from django.core.exceptions import ValidationError, FieldError
 from django.utils.translation import ugettext_lazy as _
+
 from django.contrib.auth.models import Permission
 
 import InvenTree.version

InvenTree/plugin/builtin/integration/mixins.py

@@ -1,4 +1,4 @@
-"""default shpping mixins for IntegrationMixins"""
+"""default mixins for IntegrationMixins"""
 from django.conf.urls import url, include
 
 from plugin.urls import PLUGIN_BASE