PEP fixes

InvenTree/supplier/models.py

@@ -5,54 +5,57 @@ from django.db import models
 from InvenTree.models import Company
 from part.models import Part
 
+
 class Supplier(Company):
     """ Represents a manufacturer or supplier
     """
     
     pass
-    
+
+
 class Customer(Company):
     pass
-    
+
+
 class SupplierPart(models.Model):
     """ Represents a unique part as provided by a Supplier
     Each SupplierPart is identified by a MPN (Manufacturer Part Number)
     Each SupplierPart is also linked to a Part object
     - A Part may be available from multiple suppliers
     """
-    
+
     supplier = models.ForeignKey(Supplier,
                                  on_delete=models.CASCADE)
     part = models.ForeignKey(Part,
                              on_delete=models.CASCADE)
-    
+
     MPN = models.CharField(max_length=100)
     URL = models.URLField(blank=True)
     description = models.CharField(max_length=250,
                                    blank=True)
-    
+
     def __str__(self):
         return "{mpn} - {supplier}".format(
             mpn = self.MPN,
             supplier = self.supplier.name)
-    
-    
+
+
 class SupplierPriceBreak(models.Model):
     """ Represents a quantity price break for a SupplierPart
     - Suppliers can offer discounts at larger quantities
     - SupplierPart(s) may have zero-or-more associated SupplierPriceBreak(s)
     """
-    
+
     part = models.ForeignKey(SupplierPart,
                              on_delete=models.CASCADE)
     quantity = models.IntegerField()
     cost = models.DecimalField(max_digits=10, decimal_places=3)
     currency = models.CharField(max_length=10,
                                 blank=True)
-    
+
     def __str__(self):
         return "{mpn} - {cost}{currency} @ {quan}".format(
-            mpn = part.MPN,
-            cost = self.cost,
-            currency = self.currency if self.currency else '',
-            quan = self.quantity)
+            mpn=part.MPN,
+            cost=self.cost,
+            currency=self.currency if self.currency else '',
+            quan=self.quantity)