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 faa7f2a0c6..80101fa68c 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 carrier
-from . import party
+
+from . import carrier, party
 
 
 def register():
diff --git a/carrier.py b/carrier.py
index 42dfff6d4c..c55f043916 100644
--- a/carrier.py
+++ b/carrier.py
@@ -1,11 +1,11 @@
 # This file is part of Tryton.  The COPYRIGHT file at the top level of
 # this repository contains the full copyright notices and license terms.
-from trytond.model import (
-    ModelView, ModelSQL, DeactivableMixin, MatchMixin, fields,
-    sequence_ordered)
-from trytond.transaction import Transaction
-from trytond.pool import Pool
 from trytond.cache import Cache
+from trytond.model import (
+    DeactivableMixin, MatchMixin, ModelSQL, ModelView, fields,
+    sequence_ordered)
+from trytond.pool import Pool
+from trytond.transaction import Transaction
 
 
 class Carrier(DeactivableMixin, ModelSQL, ModelView):
diff --git a/setup.py b/setup.py
index 3f608b848e..720c9f0530 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_carrier.py b/tests/test_carrier.py
index 792ccdab18..27158bd070 100644
--- a/tests/test_carrier.py
+++ b/tests/test_carrier.py
@@ -1,6 +1,7 @@
 # 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 unittest
+
 import trytond.tests.test_tryton
 from trytond.tests.test_tryton import ModuleTestCase