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 7c2a582f16..da59c8f037 100644
--- a/__init__.py
+++ b/__init__.py
@@ -3,8 +3,7 @@
 
 from trytond.pool import Pool
 
-from . import stock
-from . import account
+from . import account, stock
 
 __all__ = ['register']
 
diff --git a/account.py b/account.py
index 45af326047..4aaf66907d 100644
--- a/account.py
+++ b/account.py
@@ -1,6 +1,6 @@
 # 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.pool import PoolMeta, Pool
+from trytond.pool import Pool, PoolMeta
 
 
 class InvoiceLine(metaclass=PoolMeta):
diff --git a/setup.py b/setup.py
index 379cc718bc..66b522e487 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/stock.py b/stock.py
index c83ee0161a..6a7e9681b9 100644
--- a/stock.py
+++ b/stock.py
@@ -3,11 +3,10 @@
 from functools import wraps
 
 from trytond.model import ModelView, Workflow, fields
-from trytond.transaction import Transaction
-from trytond.pool import PoolMeta, Pool
-from trytond.pyson import Eval
-
 from trytond.modules.product import round_price
+from trytond.pool import Pool, PoolMeta
+from trytond.pyson import Eval
+from trytond.transaction import Transaction
 
 
 class Location(metaclass=PoolMeta):
diff --git a/tests/__init__.py b/tests/__init__.py
index 1987cb9ab4..8cce86eb5d 100644
--- a/tests/__init__.py
+++ b/tests/__init__.py
@@ -2,7 +2,8 @@
 # this repository contains the full copyright notices and license terms.
 
 try:
-    from trytond.modules.stock_consignment.tests.test_stock_consignment import suite  # noqa: E501
+    from trytond.modules.stock_consignment.tests.test_stock_consignment import \
+        suite  # noqa: E501
 except ImportError:
     from .test_stock_consignment import suite
 
diff --git a/tests/test_stock_consignment.py b/tests/test_stock_consignment.py
index fca4c3c392..60065138d0 100644
--- a/tests/test_stock_consignment.py
+++ b/tests/test_stock_consignment.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 StockConsignmentTestCase(ModuleTestCase):