diff --git a/.isort.cfg b/.isort.cfg
new file mode 100644
index 0000000000..e1c6495da9
--- /dev/null
+++ b/.isort.cfg
@@ -0,0 +1,3 @@
+[settings]
+multi_line_output=4
+known_first_party=trytond
diff --git a/__init__.py b/__init__.py
index 752dca49bf..742290f2a1 100644
--- a/__init__.py
+++ b/__init__.py
@@ -2,8 +2,8 @@
 # this repository contains the full copyright notices and license terms.
 
 from trytond.pool import Pool
-from . import res
-from . import ir
+
+from . import ir, res
 
 __all__ = ['register']
 
diff --git a/res.py b/res.py
index 9b437ed6de..8b2577c752 100644
--- a/res.py
+++ b/res.py
@@ -3,8 +3,8 @@
 import datetime
 
 from trytond.model import ModelSQL, ModelView, fields
-from trytond.pool import PoolMeta, Pool
-from trytond.pyson import Eval, If, Bool
+from trytond.pool import Pool, PoolMeta
+from trytond.pyson import Bool, Eval, If
 
 
 class Role(ModelSQL, ModelView):
diff --git a/setup.py b/setup.py
index a4f851685a..e9b7502611 100755
--- a/setup.py
+++ b/setup.py
@@ -6,7 +6,8 @@ import io
 import os
 import re
 from configparser import ConfigParser
-from setuptools import setup, find_packages
+
+from setuptools import find_packages, setup
 
 
 def read(fname):
diff --git a/tests/test_user_role.py b/tests/test_user_role.py
index f8820a3ed8..448a872ce0 100644
--- a/tests/test_user_role.py
+++ b/tests/test_user_role.py
@@ -1,14 +1,12 @@
 # This file is part of Tryton.  The COPYRIGHT file at the top level of
 # this repository contains the full copyright notices and license terms.
 
+import doctest
 import unittest
 
-import doctest
-
-from trytond.tests.test_tryton import ModuleTestCase
+from trytond.tests.test_tryton import (
+    ModuleTestCase, doctest_checker, doctest_teardown)
 from trytond.tests.test_tryton import suite as test_suite
-from trytond.tests.test_tryton import doctest_teardown
-from trytond.tests.test_tryton import doctest_checker
 
 
 class UserRoleTestCase(ModuleTestCase):