Fix pep8 compat

sqlalchemy_utils/expressions.py

@@ -1,7 +1,6 @@
 import sqlalchemy as sa
 from sqlalchemy.dialects.postgresql import ARRAY, JSON
 from sqlalchemy.ext.compiler import compiles
-from sqlalchemy.sql.elements import ColumnClause
 from sqlalchemy.sql.expression import (
     _literal_as_text,
     ClauseElement,
@@ -123,7 +122,7 @@ class array_agg(GenericFunction):
 
 
 @compiles(array_agg, 'postgresql')
-def compile_json_array_length(element, compiler, **kw):
+def compile_array_agg(element, compiler, **kw):
     return "%s(%s)" % (element.name, compiler.process(element.clauses))
 
 

sqlalchemy_utils/functions/orm.py

@@ -9,11 +9,11 @@ from operator import attrgetter
 
 import six
 import sqlalchemy as sa
+from sqlalchemy.engine.interfaces import Dialect
 from sqlalchemy.ext.hybrid import hybrid_property
 from sqlalchemy.orm import mapperlib
 from sqlalchemy.orm.attributes import InstrumentedAttribute
 from sqlalchemy.orm.exc import UnmappedInstanceError
-from sqlalchemy.engine.interfaces import Dialect
 from sqlalchemy.orm.properties import ColumnProperty
 from sqlalchemy.orm.query import _ColumnEntity
 from sqlalchemy.orm.session import object_session

tests/functions/test_has_index.py

@@ -41,12 +41,9 @@ class TestHasIndex(object):
         assert not has_index(self.table.c.is_archived)
 
     def test_table_without_primary_key(self):
-        Base = declarative_base()
-
         article = sa.Table(
             'article',
             sa.MetaData(),
             sa.Column('name', sa.String)
         )
-
         assert not has_index(article.c.name)

tests/functions/test_quote.py

@@ -1,4 +1,5 @@
 from sqlalchemy.dialects import postgresql
+
 from sqlalchemy_utils.functions import quote
 from tests import TestCase
 

tests/test_expressions.py

@@ -97,7 +97,7 @@ class TestAsterisk(object):
 
         assert str(Asterisk(Article.__table__)) == 'article.*'
 
-    def test_with_table_object(self):
+    def test_with_quoted_identifier(self):
         Base = sa.ext.declarative.declarative_base()
 
         class User(Base):