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
@@ -26,7 +27,7 @@ class BlockListGetForm(Form):
     """
     A form to validate query parameters in the block list retrieval endpoint
     """
-    user = CharField(required=True) # TODO return all blocks if user is not specified by requesting staff user
+    user = CharField(required=True)  # TODO return all blocks if user is not specified by requesting staff user
     usage_key = CharField(required=True)
     requested_fields = ListField(required=False)
     student_view_data = ListField(required=False)
@@ -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_helpers.py

@@ -312,4 +312,4 @@ def create_location(org, course, run, block_type, block_id):
     Returns the usage key for the given key parameters using the
     default modulestore
     """
-    return modulestore().make_course_key(org, course, run).make_usage_key(block_type, block_id)
\ No newline at end of file
+    return modulestore().make_course_key(org, course, run).make_usage_key(block_type, block_id)

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

@@ -48,7 +48,7 @@ class SplitTestTransformerTestCase(CourseStructureTestCase):
         CourseEnrollmentFactory.create(user=self.user, course_id=self.course.id, is_active=True)
 
         self.transformer = UserPartitionTransformer()
-        
+
     def get_course_hierarchy(self):
         """
         Get a course hierarchy to test with.
@@ -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

@@ -39,7 +39,7 @@ class UserPartitionTransformerTestCase(CourseStructureTestCase):
             scheme=CohortPartitionScheme
         )
         self.user_partition.scheme.name = "cohort"
-        
+
         # Build course.
         self.course_hierarchy = self.get_course_hierarchy()
         self.blocks = self.build_course(self.course_hierarchy)
@@ -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_cache.py

@@ -30,7 +30,7 @@ class TestBlockCache(TestCase, ChildrenMapTestMixin):
                 block_structure.topological_traversal(
                     get_result=lambda block_key: block_structure.set_transformer_block_data(
                         block_key, self, self.block_key(), self.block_val(block_key)
-            )))
+                )))
 
         def transform(self, user_info, block_structure):
             def assert_collected_value(block_key):
@@ -45,7 +45,7 @@ class TestBlockCache(TestCase, ChildrenMapTestMixin):
             list(
                 block_structure.topological_traversal(
                     get_result=lambda block_key: assert_collected_value(block_key)
-            ))
+                ))
 
     def setUp(self):
         super(TestBlockCache, self).setUp()

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

@@ -35,11 +35,11 @@ class TestBlockStructure(TestCase, ChildrenMapTestMixin):
 
         # get_children
         for parent, children in enumerate(children_map):
-           self.assertSetEqual(set(block_structure.get_children(parent)), set(children))
+            self.assertSetEqual(set(block_structure.get_children(parent)), set(children))
 
         # get_parents
         for child, parents in enumerate(self.get_parents_map(children_map)):
-           self.assertSetEqual(set(block_structure.get_parents(child)), set(parents))
+            self.assertSetEqual(set(block_structure.get_parents(child)), set(parents))
 
         # has_block
         for node in range(len(children_map)):
@@ -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_graph_traversals.py

@@ -147,7 +147,7 @@ class GraphTraversalsTestCase(TestCase):
         #                  /   |    \  /   \
         #                 M    N     O     P
         graph = {
-            'root': ['A', 'B', 'C', 'E', 'F', 'K', 'O'], # has additional links than what is drawn above
+            'root': ['A', 'B', 'C', 'E', 'F', 'K', 'O'],  # has additional links than what is drawn above
             'A': ['D', 'E'],
             'B': ['E', 'F', 'G'],
             'C': ['H', 'I'],
@@ -166,7 +166,7 @@ class GraphTraversalsTestCase(TestCase):
             'P': [],
         }
         graph_parents = self.get_parent_map(graph)
-        for _ in range(2): # should get the same result twice
+        for _ in range(2):  # should get the same result twice
             self.assertEqual(
                 list(traverse_topologically(
                     start_node='root',

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
 
@@ -111,7 +112,7 @@ class ChildrenMapTestMixin(object):
         # add_relation
         for parent, children in enumerate(children_map):
             for child in children:
-               block_structure.add_relation(parent, child)
+                block_structure.add_relation(parent, child)
         return block_structure
 
     def get_parents_map(self, children_map):

openedx/core/lib/block_cache/user_info.py

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