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 4c097e4e75..c635c374dc 100644
--- a/__init__.py
+++ b/__init__.py
@@ -2,10 +2,8 @@
 # this repository contains the full copyright notices and license terms.
 
 from trytond.pool import Pool
-from . import product
-from . import configuration
-from . import account
-from . import analytic_account
+
+from . import account, analytic_account, configuration, product
 
 
 def register():
diff --git a/account.py b/account.py
index b3b8a48b0f..0bffad1348 100644
--- a/account.py
+++ b/account.py
@@ -1,8 +1,8 @@
 # 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.pyson import Eval
 from trytond.model import fields
+from trytond.pool import Pool, PoolMeta
+from trytond.pyson import Eval
 from trytond.transaction import Transaction
 
 
diff --git a/configuration.py b/configuration.py
index 1c6e533fe7..a37bd6596e 100644
--- a/configuration.py
+++ b/configuration.py
@@ -1,7 +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.
-from trytond.pool import PoolMeta, Pool
 from trytond.model import fields
+from trytond.pool import Pool, PoolMeta
 from trytond.pyson import Eval
 
 
diff --git a/product.py b/product.py
index 28b38b4c67..7af2a7e826 100644
--- a/product.py
+++ b/product.py
@@ -4,15 +4,15 @@ from functools import wraps
 
 from sql import Null
 
+from trytond import backend
 from trytond.i18n import gettext
 from trytond.model import ModelSQL, fields
-from trytond.pyson import Eval, Or, Bool
-from trytond import backend
-from trytond.pool import PoolMeta, Pool
-from trytond.transaction import Transaction
-from trytond.tools.multivalue import migrate_property
 from trytond.modules.company.model import (
     CompanyMultiValueMixin, CompanyValueMixin)
+from trytond.pool import Pool, PoolMeta
+from trytond.pyson import Bool, Eval, Or
+from trytond.tools.multivalue import migrate_property
+from trytond.transaction import Transaction
 
 from .exceptions import AccountError, TaxError
 
diff --git a/setup.py b/setup.py
index 9dfaf27eae..3480ce74fd 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/__init__.py b/tests/__init__.py
index 2f40c9fdf9..ebaee623bd 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.account_product.tests.test_account_product import suite  # noqa: E501
+    from trytond.modules.account_product.tests.test_account_product import \
+        suite  # noqa: E501
 except ImportError:
     from .test_account_product import suite
 
diff --git a/tests/test_account_product.py b/tests/test_account_product.py
index b8743148f6..3b33da8e69 100644
--- a/tests/test_account_product.py
+++ b/tests/test_account_product.py
@@ -4,13 +4,12 @@ import unittest
 from decimal import Decimal
 
 import trytond.tests.test_tryton
-from trytond.tests.test_tryton import ModuleTestCase, with_transaction
-from trytond.pool import Pool
 from trytond.exceptions import UserError
-
-from trytond.modules.company.tests import (
-    create_company, set_company, CompanyTestMixin)
 from trytond.modules.account.tests import create_chart
+from trytond.modules.company.tests import (
+    CompanyTestMixin, create_company, set_company)
+from trytond.pool import Pool
+from trytond.tests.test_tryton import ModuleTestCase, with_transaction
 
 
 class AccountProductTestCase(CompanyTestMixin, ModuleTestCase):