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 4314810344..7c35129030 100644
--- a/__init__.py
+++ b/__init__.py
@@ -2,11 +2,8 @@
 # this repository contains the full copyright notices and license terms.
 
 from trytond.pool import Pool
-from . import ir
-from . import uom
-from . import category
-from . import product
-from . import configuration
+
+from . import category, configuration, ir, product, uom
 from .product import price_digits, round_price
 from .uom import uom_conversion_digits
 
diff --git a/category.py b/category.py
index e62f351b76..f03b278e27 100644
--- a/category.py
+++ b/category.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.model import ModelView, ModelSQL, fields, tree
+from trytond.model import ModelSQL, ModelView, fields, tree
 from trytond.pyson import PYSONEncoder
 
 
diff --git a/configuration.py b/configuration.py
index 7b20f5153d..a35634e42a 100644
--- a/configuration.py
+++ b/configuration.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 import backend
-from trytond.model import (ModelView, ModelSQL, ModelSingleton,
-    MultiValueMixin, ValueMixin, fields)
+from trytond.model import (
+    ModelSingleton, ModelSQL, ModelView, MultiValueMixin, ValueMixin, fields)
 from trytond.pool import Pool
-from trytond.tools.multivalue import migrate_property
 from trytond.pyson import Id
+from trytond.tools.multivalue import migrate_property
 
 default_cost_price_method = fields.Selection(
     'get_cost_price_methods', "Default Cost Method",
diff --git a/product.py b/product.py
index 8df2fe74b9..c55470bb31 100644
--- a/product.py
+++ b/product.py
@@ -7,25 +7,25 @@ from importlib import import_module
 
 import stdnum
 import stdnum.exceptions
-from sql import Null, Column, Literal
+from sql import Column, Literal, Null
 from sql.operators import Equal
 
+from trytond import backend
 from trytond.i18n import gettext
 from trytond.model import (
-    ModelView, ModelSQL, Model, UnionMixin, DeactivableMixin, sequence_ordered,
-    Exclude, fields)
-from trytond.pyson import Eval, If, Get
-from trytond.transaction import Transaction
-from trytond.pool import Pool
-from trytond import backend
-from trytond.tools import lstrip_wildcard
-from trytond.tools.multivalue import migrate_property
+    DeactivableMixin, Exclude, Model, ModelSQL, ModelView, UnionMixin, fields,
+    sequence_ordered)
 from trytond.modules.company.model import (
     CompanyMultiValueMixin, CompanyValueMixin)
+from trytond.pool import Pool
+from trytond.pyson import Eval, Get, If
+from trytond.tools import lstrip_wildcard
+from trytond.tools.multivalue import migrate_property
+from trytond.transaction import Transaction
+
 from .exceptions import InvalidIdentifierCode
 from .ir import price_decimal
 
-
 __all__ = ['price_digits', 'round_price', 'TemplateFunction']
 logger = logging.getLogger(__name__)
 
diff --git a/setup.py b/setup.py
index ce5b623f12..92481d26e9 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_product.py b/tests/test_product.py
index 9b033663a8..27d4bc8021 100644
--- a/tests/test_product.py
+++ b/tests/test_product.py
@@ -3,14 +3,13 @@
 import doctest
 import unittest
 from decimal import Decimal
-import trytond.tests.test_tryton
-from trytond.tests.test_tryton import ModuleTestCase, with_transaction
-from trytond.tests.test_tryton import doctest_teardown
-from trytond.tests.test_tryton import doctest_checker
-from trytond.transaction import Transaction
-from trytond.pool import Pool
 
+import trytond.tests.test_tryton
 from trytond.modules.company.tests import CompanyTestMixin
+from trytond.pool import Pool
+from trytond.tests.test_tryton import (
+    ModuleTestCase, doctest_checker, doctest_teardown, with_transaction)
+from trytond.transaction import Transaction
 
 from ..product import round_price
 
diff --git a/uom.py b/uom.py
index f5ea20f6ad..74ee707a79 100644
--- a/uom.py
+++ b/uom.py
@@ -7,8 +7,8 @@ from math import ceil, floor, log10
 from trytond.config import config
 from trytond.i18n import gettext
 from trytond.model import (
-    ModelView, ModelSQL, DeactivableMixin, fields, Check, SymbolMixin,
-    DigitsMixin)
+    Check, DeactivableMixin, DigitsMixin, ModelSQL, ModelView, SymbolMixin,
+    fields)
 from trytond.model.exceptions import AccessError
 from trytond.pyson import Eval
 from trytond.transaction import Transaction