Post black reformatting

Applied on top of a pure run of black -l 79 in
I7eda77fed3d8e73df84b3651fd6cfcfe858d4dc9,  this set of changes
resolves all remaining flake8 conditions for those codes
we have enabled in setup.cfg.

Included are resolutions for all remaining flake8 issues
including shadowed builtins, long lines, import order, unused
imports, duplicate imports, and docstring issues.

Change-Id: I4f72d3ba1380dd601610ff80b8fb06a2aff8b0fe

1 files changed, 57 insertions, 33 deletions

diff --git a/lib/sqlalchemy/orm/relationships.py b/lib/sqlalchemy/orm/relationships.py
index e89d1542f..27a8c4ca9 100644
--- a/lib/sqlalchemy/orm/relationships.py
+++ b/lib/sqlalchemy/orm/relationships.py
@@ -14,34 +14,38 @@ and `secondaryjoin` aspects of :func:`.relationship`.
 
 """
 from __future__ import absolute_import
-from .. import sql, util, exc as sa_exc, schema, log
 
+import collections
 import weakref
-from .util import CascadeOptions, _orm_annotate, _orm_deannotate
-from . import dependency
+
 from . import attributes
-from ..sql.util import (
-    ClauseAdapter,
-    join_condition,
-    _shallow_annotate,
-    visit_binary_product,
-    _deep_deannotate,
-    selectables_overlap,
-    adapt_criterion_to_null,
-)
+from . import dependency
+from . import mapper as mapperlib
 from .base import state_str
-
-from ..sql import operators, expression, visitors
-from .interfaces import (
-    MANYTOMANY,
-    MANYTOONE,
-    ONETOMANY,
-    StrategizedProperty,
-    PropComparator,
-)
+from .interfaces import MANYTOMANY
+from .interfaces import MANYTOONE
+from .interfaces import ONETOMANY
+from .interfaces import PropComparator
+from .interfaces import StrategizedProperty
+from .util import _orm_annotate
+from .util import _orm_deannotate
+from .util import CascadeOptions
+from .. import exc as sa_exc
+from .. import log
+from .. import schema
+from .. import sql
+from .. import util
 from ..inspection import inspect
-from . import mapper as mapperlib
-import collections
+from ..sql import expression
+from ..sql import operators
+from ..sql import visitors
+from ..sql.util import _deep_deannotate
+from ..sql.util import _shallow_annotate
+from ..sql.util import adapt_criterion_to_null
+from ..sql.util import ClauseAdapter
+from ..sql.util import join_condition
+from ..sql.util import selectables_overlap
+from ..sql.util import visit_binary_product
 
 
 def remote(expr):
@@ -88,7 +92,7 @@ def foreign(expr):
 
 
 @log.class_logger
-@util.langhelpers.dependency_for("sqlalchemy.orm.properties")
+@util.langhelpers.dependency_for("sqlalchemy.orm.properties", add_to_all=True)
 class RelationshipProperty(StrategizedProperty):
     """Describes an object property that holds a single item or list
     of items that correspond to a related database table.
@@ -596,8 +600,8 @@ class RelationshipProperty(StrategizedProperty):
 
           .. seealso::
 
-            :doc:`/orm/loading_relationships` - Full documentation on relationship loader
-            configuration.
+            :doc:`/orm/loading_relationships` - Full documentation on
+            relationship loader configuration.
 
             :ref:`dynamic_relationship` - detail on the ``dynamic`` option.
 
@@ -991,7 +995,14 @@ class RelationshipProperty(StrategizedProperty):
             else:
                 of_type = None
 
-            pj, sj, source, dest, secondary, target_adapter = self.property._create_joins(
+            (
+                pj,
+                sj,
+                source,
+                dest,
+                secondary,
+                target_adapter,
+            ) = self.property._create_joins(
                 source_selectable=adapt_from,
                 source_polymorphic=True,
                 of_type=of_type,
@@ -1112,7 +1123,14 @@ class RelationshipProperty(StrategizedProperty):
             else:
                 source_selectable = None
 
-            pj, sj, source, dest, secondary, target_adapter = self.property._create_joins(
+            (
+                pj,
+                sj,
+                source,
+                dest,
+                secondary,
+                target_adapter,
+            ) = self.property._create_joins(
                 dest_polymorphic=True,
                 dest_selectable=to_selectable,
                 source_selectable=source_selectable,
@@ -1508,7 +1526,7 @@ class RelationshipProperty(StrategizedProperty):
 
         Above, the SQL should be "address.user_id = 5". The callable
         returned by this method produces the value "5" based on the identity
-        of ``u1`.
+        of ``u1``.
 
         """
 
@@ -2108,9 +2126,9 @@ class RelationshipProperty(StrategizedProperty):
         if self.uselist is None:
             self.uselist = self.direction is not MANYTOONE
         if not self.viewonly:
-            self._dependency_processor = dependency.DependencyProcessor.from_relationship(
-                self
-            )
+            self._dependency_processor = (
+                dependency.DependencyProcessor.from_relationship
+            )(self)
 
     @util.memoized_property
     def _use_get(self):
@@ -2155,7 +2173,13 @@ class RelationshipProperty(StrategizedProperty):
         single_crit = dest_mapper._single_table_criterion
         aliased = aliased or (source_selectable is not None)
 
-        primaryjoin, secondaryjoin, secondary, target_adapter, dest_selectable = self._join_condition.join_targets(
+        (
+            primaryjoin,
+            secondaryjoin,
+            secondary,
+            target_adapter,
+            dest_selectable,
+        ) = self._join_condition.join_targets(
             source_selectable, dest_selectable, aliased, single_crit
         )
         if source_selectable is None: