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, 133 insertions, 141 deletions

diff --git a/lib/sqlalchemy/util/__init__.py b/lib/sqlalchemy/util/__init__.py
index 103225e2a..13bcc37e7 100644
--- a/lib/sqlalchemy/util/__init__.py
+++ b/lib/sqlalchemy/util/__init__.py
@@ -5,150 +5,142 @@
 # This module is part of SQLAlchemy and is released under
 # the MIT License: http://www.opensource.org/licenses/mit-license.php
 
-from .compat import (
-    callable,
-    cmp,
-    reduce,
-    threading,
-    py3k,
-    py33,
-    py36,
-    py2k,
-    jython,
-    pypy,
-    cpython,
-    win32,
-    pickle,
-    dottedgetter,
-    parse_qsl,
-    namedtuple,
-    next,
-    reraise,
-    raise_from_cause,
-    text_type,
-    safe_kwarg,
-    string_types,
-    int_types,
-    binary_type,
-    nested,
-    quote_plus,
-    with_metaclass,
-    print_,
-    itertools_filterfalse,
-    u,
-    ue,
-    b,
-    unquote_plus,
-    unquote,
-    b64decode,
-    b64encode,
-    byte_buffer,
-    itertools_filter,
-    iterbytes,
-    StringIO,
-    inspect_getargspec,
-    zip_longest,
-)
 
-from ._collections import (
-    KeyedTuple,
-    ImmutableContainer,
-    immutabledict,
-    Properties,
-    OrderedProperties,
-    ImmutableProperties,
-    OrderedDict,
-    OrderedSet,
-    IdentitySet,
-    OrderedIdentitySet,
-    column_set,
-    column_dict,
-    ordered_column_set,
-    populate_column_dict,
-    unique_list,
-    UniqueAppender,
-    PopulateDict,
-    EMPTY_SET,
-    to_list,
-    to_set,
-    to_column_set,
-    update_copy,
-    flatten_iterator,
-    has_intersection,
-    LRUCache,
-    ScopedRegistry,
-    ThreadLocalRegistry,
-    WeakSequence,
-    coerce_generator_arg,
-    lightweight_named_tuple,
-    collections_abc,
-    has_dupes,
-)
+from collections import defaultdict  # noqa
+from contextlib import contextmanager  # noqa
+from functools import partial  # noqa
+from functools import update_wrapper  # noqa
 
-from .langhelpers import (
-    iterate_attributes,
-    class_hierarchy,
-    portable_instancemethod,
-    unbound_method_to_callable,
-    getargspec_init,
-    format_argspec_init,
-    format_argspec_plus,
-    get_func_kwargs,
-    get_cls_kwargs,
-    decorator,
-    as_interface,
-    memoized_property,
-    memoized_instancemethod,
-    md5_hex,
-    group_expirable_memoized_property,
-    dependencies,
-    decode_slice,
-    monkeypatch_proxied_specials,
-    asbool,
-    bool_or_str,
-    coerce_kw_type,
-    duck_type_collection,
-    assert_arg_type,
-    symbol,
-    dictlike_iteritems,
-    classproperty,
-    set_creation_order,
-    warn_exception,
-    warn,
-    NoneType,
-    constructor_copy,
-    methods_equivalent,
-    chop_traceback,
-    asint,
-    generic_repr,
-    counter,
-    PluginLoader,
-    hybridproperty,
-    hybridmethod,
-    safe_reraise,
-    quoted_token_parser,
-    get_callable_argspec,
-    only_once,
-    attrsetter,
-    ellipses_string,
-    warn_limited,
-    map_bits,
-    MemoizedSlots,
-    EnsureKWArgType,
-    wrap_callable,
-)
+from ._collections import coerce_generator_arg  # noqa
+from ._collections import collections_abc  # noqa
+from ._collections import column_dict  # noqa
+from ._collections import column_set  # noqa
+from ._collections import EMPTY_SET  # noqa
+from ._collections import flatten_iterator  # noqa
+from ._collections import has_dupes  # noqa
+from ._collections import has_intersection  # noqa
+from ._collections import IdentitySet  # noqa
+from ._collections import ImmutableContainer  # noqa
+from ._collections import immutabledict  # noqa
+from ._collections import ImmutableProperties  # noqa
+from ._collections import KeyedTuple  # noqa
+from ._collections import lightweight_named_tuple  # noqa
+from ._collections import LRUCache  # noqa
+from ._collections import ordered_column_set  # noqa
+from ._collections import OrderedDict  # noqa
+from ._collections import OrderedIdentitySet  # noqa
+from ._collections import OrderedProperties  # noqa
+from ._collections import OrderedSet  # noqa
+from ._collections import populate_column_dict  # noqa
+from ._collections import PopulateDict  # noqa
+from ._collections import Properties  # noqa
+from ._collections import ScopedRegistry  # noqa
+from ._collections import ThreadLocalRegistry  # noqa
+from ._collections import to_column_set  # noqa
+from ._collections import to_list  # noqa
+from ._collections import to_set  # noqa
+from ._collections import unique_list  # noqa
+from ._collections import UniqueAppender  # noqa
+from ._collections import update_copy  # noqa
+from ._collections import WeakSequence  # noqa
+from .compat import b  # noqa
+from .compat import b64decode  # noqa
+from .compat import b64encode  # noqa
+from .compat import binary_type  # noqa
+from .compat import byte_buffer  # noqa
+from .compat import callable  # noqa
+from .compat import cmp  # noqa
+from .compat import cpython  # noqa
+from .compat import dottedgetter  # noqa
+from .compat import inspect_getargspec  # noqa
+from .compat import int_types  # noqa
+from .compat import iterbytes  # noqa
+from .compat import itertools_filter  # noqa
+from .compat import itertools_filterfalse  # noqa
+from .compat import jython  # noqa
+from .compat import namedtuple  # noqa
+from .compat import nested  # noqa
+from .compat import next  # noqa
+from .compat import parse_qsl  # noqa
+from .compat import pickle  # noqa
+from .compat import print_  # noqa
+from .compat import py2k  # noqa
+from .compat import py33  # noqa
+from .compat import py36  # noqa
+from .compat import py3k  # noqa
+from .compat import pypy  # noqa
+from .compat import quote_plus  # noqa
+from .compat import raise_from_cause  # noqa
+from .compat import reduce  # noqa
+from .compat import reraise  # noqa
+from .compat import safe_kwarg  # noqa
+from .compat import string_types  # noqa
+from .compat import StringIO  # noqa
+from .compat import text_type  # noqa
+from .compat import threading  # noqa
+from .compat import u  # noqa
+from .compat import ue  # noqa
+from .compat import unquote  # noqa
+from .compat import unquote_plus  # noqa
+from .compat import win32  # noqa
+from .compat import with_metaclass  # noqa
+from .compat import zip_longest  # noqa
+from .deprecations import deprecated  # noqa
+from .deprecations import inject_docstring_text  # noqa
+from .deprecations import pending_deprecation  # noqa
+from .deprecations import warn_deprecated  # noqa
+from .deprecations import warn_pending_deprecation  # noqa
+from .langhelpers import as_interface  # noqa
+from .langhelpers import asbool  # noqa
+from .langhelpers import asint  # noqa
+from .langhelpers import assert_arg_type  # noqa
+from .langhelpers import attrsetter  # noqa
+from .langhelpers import bool_or_str  # noqa
+from .langhelpers import chop_traceback  # noqa
+from .langhelpers import class_hierarchy  # noqa
+from .langhelpers import classproperty  # noqa
+from .langhelpers import coerce_kw_type  # noqa
+from .langhelpers import constructor_copy  # noqa
+from .langhelpers import counter  # noqa
+from .langhelpers import decode_slice  # noqa
+from .langhelpers import decorator  # noqa
+from .langhelpers import dependencies  # noqa
+from .langhelpers import dictlike_iteritems  # noqa
+from .langhelpers import duck_type_collection  # noqa
+from .langhelpers import ellipses_string  # noqa
+from .langhelpers import EnsureKWArgType  # noqa
+from .langhelpers import format_argspec_init  # noqa
+from .langhelpers import format_argspec_plus  # noqa
+from .langhelpers import generic_repr  # noqa
+from .langhelpers import get_callable_argspec  # noqa
+from .langhelpers import get_cls_kwargs  # noqa
+from .langhelpers import get_func_kwargs  # noqa
+from .langhelpers import getargspec_init  # noqa
+from .langhelpers import group_expirable_memoized_property  # noqa
+from .langhelpers import hybridmethod  # noqa
+from .langhelpers import hybridproperty  # noqa
+from .langhelpers import iterate_attributes  # noqa
+from .langhelpers import map_bits  # noqa
+from .langhelpers import md5_hex  # noqa
+from .langhelpers import memoized_instancemethod  # noqa
+from .langhelpers import memoized_property  # noqa
+from .langhelpers import MemoizedSlots  # noqa
+from .langhelpers import methods_equivalent  # noqa
+from .langhelpers import monkeypatch_proxied_specials  # noqa
+from .langhelpers import NoneType  # noqa
+from .langhelpers import only_once  # noqa
+from .langhelpers import PluginLoader  # noqa
+from .langhelpers import portable_instancemethod  # noqa
+from .langhelpers import quoted_token_parser  # noqa
+from .langhelpers import safe_reraise  # noqa
+from .langhelpers import set_creation_order  # noqa
+from .langhelpers import symbol  # noqa
+from .langhelpers import unbound_method_to_callable  # noqa
+from .langhelpers import warn  # noqa
+from .langhelpers import warn_exception  # noqa
+from .langhelpers import warn_limited  # noqa
+from .langhelpers import wrap_callable  # noqa
 
-from .deprecations import (
-    warn_deprecated,
-    warn_pending_deprecation,
-    deprecated,
-    pending_deprecation,
-    inject_docstring_text,
-)
 
 # things that used to be not always available,
 # but are now as of current support Python versions
-from collections import defaultdict
-from functools import partial
-from functools import update_wrapper
-from contextlib import contextmanager