PEP fixes for /part

InvenTree/part/api.py

@@ -3,7 +3,7 @@ from __future__ import unicode_literals
 
 from django_filters.rest_framework import DjangoFilterBackend
 from rest_framework import filters
-from rest_framework import generics, permissions, mixins
+from rest_framework import generics, permissions
 
 from django.conf.urls import url, include
 
@@ -17,6 +17,7 @@ from .serializers import CategorySerializer
 from InvenTree.views import TreeSerializer
 from InvenTree.serializers import DraftRUDView
 
+
 class PartCategoryTree(TreeSerializer):
 
     title = "Parts"
@@ -33,7 +34,7 @@ class CategoryList(generics.ListCreateAPIView):
 
     filter_backends = [
         DjangoFilterBackend,
-        #filters.SearchFilter,
+        # filters.SearchFilter,
         filters.OrderingFilter,
     ]
 
@@ -61,6 +62,7 @@ class PartDetail(DraftRUDView):
         permissions.IsAuthenticatedOrReadOnly,
     ]
 
+
 class PartList(generics.ListCreateAPIView):
 
     queryset = Part.objects.all()
@@ -133,13 +135,12 @@ class SupplierPartList(generics.ListAPIView):
         'supplier'
     ]
 
-cat_api_urls = [
 
+cat_api_urls = [
     url(r'^$', CategoryList.as_view(), name='api-part-category-list'),
 ]
 
 part_api_urls = [
-
     url(r'^tree/?', PartCategoryTree.as_view(), name='api-part-tree'),
 
     url(r'^category/', include(cat_api_urls)),

InvenTree/part/models.py

@@ -7,7 +7,6 @@ from django.utils.translation import gettext_lazy as _
 from django.core.exceptions import ValidationError
 
 from django.db import models
-from django.db.models import Sum
 from django.core.validators import MinValueValidator
 
 from django.db.models.signals import pre_delete
@@ -250,7 +249,6 @@ class Part(models.Model):
             self.allocated_build_count,
         ])
 
-
     @property
     def stock_entries(self):
         return [loc for loc in self.locations.all() if loc.in_stock]
@@ -263,7 +261,6 @@ class Part(models.Model):
 
         return sum([loc.quantity for loc in self.stock_entries])
 
-
     @property
     def has_bom(self):
         return self.bom_count > 0

InvenTree/part/serializers.py

@@ -5,6 +5,7 @@ from .models import SupplierPart
 
 from company.serializers import CompanyBriefSerializer
 
+
 class CategorySerializer(serializers.ModelSerializer):
 
     url = serializers.CharField(source='get_absolute_url', read_only=True)
@@ -99,4 +100,4 @@ class SupplierPartSerializer(serializers.ModelSerializer):
             'SKU',
             'manufacturer',
             'MPN',
-        ]
+        ]