Fix style check

Author: alisx255

backend/market/models.py

@@ -1,11 +1,13 @@
+import hashlib
+import math
+from decimal import Decimal
+
 from django.contrib.auth.models import AbstractUser
 from django.core.exceptions import ValidationError
 from django.core.validators import MinValueValidator
 from django.db import models
 from phonenumber_field.modelfields import PhoneNumberField
-import hashlib
-import math
-from decimal import Decimal
+
 
 class User(AbstractUser):
     """
@@ -144,7 +146,7 @@ def clean(self):
             raise ValidationError({"end_date": "End date must be after start date"})
 
     def _calculate_approximate_location(self, latitude, longitude):
-        
+
 
         if latitude is None or longitude is None:
             return None, None

backend/market/serializers.py

@@ -1,3 +1,5 @@
+from decimal import ROUND_DOWN, Decimal
+
 from django.contrib.auth import get_user_model
 from django.core.exceptions import ValidationError as ModelValidationError
 from profanity_check import predict
@@ -14,7 +16,6 @@
 
 from market.mixins import ListingTypeMixin
 from market.models import Category, Item, Listing, ListingImage, Offer, Sublet, Tag
-from decimal import ROUND_DOWN, Decimal
 
 
 User = get_user_model()
@@ -274,14 +275,14 @@ def _create_sublet(self, validated_data, additional_data):
         latitude = additional_data.get("latitude")
         longitude = additional_data.get("longitude")
 
-        
+
         if latitude is not None:
             latitude = Decimal(str(latitude)).quantize(
                 Decimal("0.000001"), rounding=ROUND_DOWN)
         if longitude is not None:
             longitude = Decimal(str(longitude)).quantize(
                 Decimal("0.000001"), rounding=ROUND_DOWN)
-        
+
         sublet = Sublet.objects.create(
             street_address=additional_data.get("street_address"),
             beds=additional_data.get("beds"),