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 58454d4b10..b3f2573b78 100644
--- a/__init__.py
+++ b/__init__.py
@@ -3,8 +3,7 @@
 
 from trytond.pool import Pool
 
-from . import web
-from . import routes
+from . import routes, web
 
 __all__ = ['register', 'routes']
 
diff --git a/routes.py b/routes.py
index d5dd9c5da2..6b88d16338 100644
--- a/routes.py
+++ b/routes.py
@@ -6,8 +6,8 @@ try:
 except ImportError:
     from http import client as HTTPStatus
 
-from werkzeug.utils import redirect
 from werkzeug.exceptions import abort
+from werkzeug.utils import redirect
 
 from trytond.protocols.wrappers import with_pool, with_transaction
 from trytond.wsgi import app
diff --git a/setup.py b/setup.py
index 9c16a43c5b..a05aa76aab 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_web_shortener.py b/tests/test_web_shortener.py
index 35e5ffcef6..dc0fc59586 100644
--- a/tests/test_web_shortener.py
+++ b/tests/test_web_shortener.py
@@ -5,10 +5,10 @@ import random
 import sys
 import unittest
 
-
-from trytond.tests.test_tryton import ModuleTestCase, with_transaction
-from trytond.tests.test_tryton import suite as test_suite
 from trytond.pool import Pool
+from trytond.tests.test_tryton import ModuleTestCase
+from trytond.tests.test_tryton import suite as test_suite
+from trytond.tests.test_tryton import with_transaction
 
 
 class WebShortenerTestCase(ModuleTestCase):
diff --git a/web.py b/web.py
index 33e7c374bb..10772492b8 100644
--- a/web.py
+++ b/web.py
@@ -1,14 +1,14 @@
 # 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 string
 import logging
-from urllib.parse import urljoin, quote
+import string
+from urllib.parse import quote, urljoin
 
 from sql.aggregate import Count
 
 from trytond.config import config
-from trytond.model import fields, ModelSQL, ModelView
+from trytond.model import ModelSQL, ModelView, fields
 from trytond.pool import Pool
 from trytond.tools import grouped_slice, reduce_ids
 from trytond.transaction import Transaction