Fix flake8

pyproject.toml

@@ -50,7 +50,7 @@ max_complexity = 10
 format = "grouped"
 
 [tool.flakeheaven.plugins]
-"flake8-*" = [
+"*" = [
     "+*",
     # long lines
     "-E501",

src/common/tests.py

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

src/purchase/tests.py

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

src/purchase/views/reports.py

@@ -9,7 +9,6 @@ from matplotlib import ticker
 
 from purchase.models import (
     Basket,
-    BasketQuerySet,
     PaymentMethod,
     Product,
     ProductQuerySet,