fix linting

Author: jchate6

tom_dataservices/dataservices.py

@@ -116,4 +116,4 @@ def to_target(self, query_results=None, **kwargs):
 
     def create_target_from_query(self, query_results, **kwargs):
         """Create a new target from the query results"""
-        raise NotImplementedError
+        raise NotImplementedError

tom_dataservices/tests/tests.py

@@ -1,5 +1,3 @@
-from abc import ABC
-
 from django import forms
 from django.test import TestCase
 
@@ -52,7 +50,7 @@ class TestDataServiceClass(TestCase):
     """
     def test_query_service(self):
         new_test_query = TestDataService()
-        self.assertEqual(new_test_query.query_results,{})
+        self.assertEqual(new_test_query.query_results, {})
         new_test_query.query_service('mytarget')
         self.assertEqual(new_test_query.query_results, test_query_results)