Cleanup some flake8 warnings and pytest warnings

Author: jkimbo

graphene_django/filter/tests/test_fields.py

@@ -183,7 +183,7 @@ class context(object):
     }
     """
     schema = Schema(query=Query)
-    result = schema.execute(query, context_value=context())
+    result = schema.execute(query, context=context())
     assert not result.errors
 
     assert len(result.data["contextArticles"]["edges"]) == 1
@@ -462,15 +462,15 @@ class Meta:
     class Query(ObjectType):
         all_reporters = DjangoFilterConnectionField(ReporterFilterNode)
 
-    r1 = Reporter.objects.create(
+    Reporter.objects.create(
         first_name="A test user", last_name="Last Name", email="[email protected]"
     )
-    r2 = Reporter.objects.create(
+    Reporter.objects.create(
         first_name="Other test user",
         last_name="Other Last Name",
         email="[email protected]",
     )
-    r3 = Reporter.objects.create(
+    Reporter.objects.create(
         first_name="Random", last_name="RandomLast", email="[email protected]"
     )
 
@@ -638,7 +638,7 @@ def resolve_all_reporters(self, info, **args):
     Reporter.objects.create(
         first_name="Bob", last_name="Doe", email="[email protected]", a_choice=2
     )
-    r = Reporter.objects.create(
+    Reporter.objects.create(
         first_name="John", last_name="Doe", email="[email protected]", a_choice=1
     )
 
@@ -684,7 +684,7 @@ def resolve_all_reporters(self, info, reverse_order=False, **args):
             return reporters
 
     Reporter.objects.create(first_name="b")
-    r = Reporter.objects.create(first_name="a")
+    Reporter.objects.create(first_name="a")
 
     schema = Schema(query=Query)
     query = """