fixup! fix quality issues.

common/lib/xmodule/xmodule/modulestore/__init__.py

@@ -905,7 +905,6 @@ class ModuleStoreRead(ModuleStoreAssetBase):
         """
         pass
 
-
     @abstractmethod
     def make_course_usage_key(self, course_key):
         """

lms/djangoapps/course_api/blocks/forms.py

@@ -15,6 +15,7 @@ from opaque_keys.edx.keys import UsageKey
 from transformers.student_view import StudentViewTransformer
 from transformers.block_counts import BlockCountsTransformer
 
+
 class ListField(Field):
     """
     Field for a list of strings
@@ -59,7 +60,6 @@ class BlockListGetForm(Form):
 
         return usage_key
 
-
     def clean(self):
         cleaned_data = super(BlockListGetForm, self).clean()
 

lms/djangoapps/course_blocks/transformers/tests/test_split_test.py

@@ -156,7 +156,7 @@ class SplitTestTransformerTestCase(CourseStructureTestCase):
                             {
                                 '#type': 'vertical',
                                 '#ref': 'L',
-                                '#children': [{'#type': 'vertical', '#ref': 'P',},],
+                                '#children': [{'#type': 'vertical', '#ref': 'P'}],
                             },
                         ],
                     },

lms/djangoapps/course_blocks/transformers/tests/test_user_partitions.py

@@ -173,7 +173,7 @@ class UserPartitionTransformerTestCase(CourseStructureTestCase):
         Test when user is assigned to group in user partition.
         """
         if group_id:
-            add_user_to_cohort(self.cohorts[group_id-1], self.user.username)
+            add_user_to_cohort(self.cohorts[group_id - 1], self.user.username)
 
         trans_block_structure = get_course_blocks(
             self.user,

lms/djangoapps/course_blocks/transformers/user_partitions.py

@@ -6,6 +6,7 @@ from openedx.core.lib.block_cache.transformer import BlockStructureTransformer
 from .split_test import SplitTestTransformer
 from .utils import get_field_on_block
 
+
 class MergedGroupAccess(object):
     """
     ...

openedx/core/lib/block_cache/graph_traversals.py

@@ -129,7 +129,7 @@ def traverse_post_order(start_node, get_children, get_result=None, predicate=Non
 
     while stack:
         # peek at the next item in the stack
-        current_stack_item = stack[len(stack)-1]
+        current_stack_item = stack[len(stack) - 1]
 
         # verify the block wasn't already visited and the block satisfies the predicate
         if current_stack_item.block in visited or not predicate(current_stack_item.block):

openedx/core/lib/block_cache/tests/test_block_structure.py

@@ -68,7 +68,7 @@ class TestBlockStructureData(TestCase, ChildrenMapTestMixin):
         transformers_info = [
             TransformerInfo(
                 transformer=MockTransformer(),
-                structure_wide_data=[("t1.global1", "t1.g.val1"), ("t1.global2", "t1.g.val2"),],
+                structure_wide_data=[("t1.global1", "t1.g.val1"), ("t1.global2", "t1.g.val2")],
                 block_specific_data={
                     "B1": [("t1.key1", "t1.b1.val1"), ("t1.key2", "t1.b1.val2")],
                     "B2": [("t1.key1", "t1.b2.val1"), ("t1.key2", "t1.b2.val2")],
@@ -78,7 +78,7 @@ class TestBlockStructureData(TestCase, ChildrenMapTestMixin):
             ),
             TransformerInfo(
                 transformer=MockTransformer(),
-                structure_wide_data=[("t2.global1", "t2.g.val1"), ("t2.global2", "t2.g.val2"),],
+                structure_wide_data=[("t2.global1", "t2.g.val1"), ("t2.global2", "t2.g.val2")],
                 block_specific_data={
                     "B1": [("t2.key1", "t2.b1.val1"), ("t2.key2", "t2.b1.val2")],
                     "B2": [("t2.key1", "t2.b2.val1"), ("t2.key2", "t2.b2.val2")],

openedx/core/lib/block_cache/tests/test_utils.py

@@ -74,6 +74,7 @@ class MockUserInfo(object):
 
 class MockTransformer(BlockStructureTransformer):
     VERSION = 1
+
     def transform(self, user_info, block_structure):
         pass
 

openedx/core/lib/block_cache/user_info.py

@@ -3,6 +3,7 @@
 """
 from abc import abstractproperty
 
+
 class UserInfo(object):
     """
     ...