* Cleanup

store/exceptions.py

@@ -12,10 +12,10 @@ class CRMException(APIException):
         self.detail = {'error': detail}
 
 
-class AuthErrorMixin(CRMException):
+class UnauthorizedException(CRMException):
     """Authentication exception error mixin."""
     status_code = status.HTTP_401_UNAUTHORIZED
 
 
-class InvalidCredentialsException(AuthErrorMixin):
+class InvalidCredentialsException(UnauthorizedException):
     default_detail = 'cannot find the worker'

store/serializers.py

@@ -1,7 +1,4 @@
-import base64
-
 from django.contrib.auth import authenticate
-from django.core.files.base import ContentFile
 from drf_extra_fields.fields import Base64ImageField
 from rest_framework import serializers
 
@@ -25,8 +22,7 @@ class LoginSerializer(serializers.Serializer):
                             password=password)
 
         # The authenticate call simply returns None for is_active=False
-        # users. (Assuming the default ModelBackend authentication
+        # users. (Assuming the default ModelBackend authentication backend.)
-        # backend.)
         if not user:
             raise InvalidCredentialsException()
 

store/views.py

@@ -90,7 +90,6 @@ class ChecklistAPI(mixins.ListModelMixin, mixins.CreateModelMixin, mixins.Retrie
             return self.retrieve(request, *args, **kwargs)
         return self.list(request, *args, **kwargs)
 
-    # Update some data on current user
     def patch(self, request, *args, **kwargs):
         data = json.loads(request.body)
         instance = get_object_or_404(self.get_queryset(), id=self.kwargs['id'])