Fixing python errors

InvenTree/part/admin.py

@@ -4,14 +4,14 @@ from .models import PartCategory, Part, PartParameter, PartParameterTemplate, Ca
 
 
 class PartAdmin(admin.ModelAdmin):
-    
+
     list_display = ('name', 'IPN', 'stock', 'category')
 
 
 class PartCategoryAdmin(admin.ModelAdmin):
-    
+
     list_display = ('name', 'path', 'description')
-    
+
 
 class ParameterTemplateAdmin(admin.ModelAdmin):
     list_display = ('name', 'units', 'format')
@@ -20,7 +20,7 @@ class ParameterTemplateAdmin(admin.ModelAdmin):
 class ParameterAdmin(admin.ModelAdmin):
     list_display = ('part', 'template', 'value')
 
-    
+
 admin.site.register(Part, PartAdmin)
 admin.site.register(PartCategory, PartCategoryAdmin)
 

InvenTree/part/models.py

@@ -2,7 +2,6 @@ from __future__ import unicode_literals
 from django.utils.translation import ugettext as _
 from django.db import models
 from django.db.models import Sum
-from django.core.exceptions import ObjectDoesNotExist, ValidationError
 
 from InvenTree.models import InvenTreeTree
 
@@ -116,7 +115,7 @@ class PartParameterTemplate(models.Model):
         PARAM_BOOL: _("Bool")
     }
 
-    format = models.IntegerField(
+    format = models.PositiveIntegerField(
         default=PARAM_NUMERIC,
         choices=PARAM_TYPE_CODES.items())
 

InvenTree/part/tests.py

@@ -1,3 +1,3 @@
-from django.test import TestCase
+# from django.test import TestCase
 
 # Create your tests here.

InvenTree/part/views.py

@@ -1,6 +1,4 @@
-from django.shortcuts import render, get_object_or_404
-from django.http import HttpResponse, Http404
-
+from django.http import HttpResponse
 from rest_framework import generics
 
 from .models import PartCategory, Part
@@ -11,9 +9,11 @@ from .serializers import PartCategoryBriefSerializer, PartCategoryDetailSerializ
 def part_index(request):
     return HttpResponse("Hello world. This is the parts page")
 
+
 def category_index(request):
     return HttpResponse("This is the category page")
 
+
 class PartDetail(generics.RetrieveAPIView):
 
     queryset = Part.objects.all()