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/currency.py b/currency.py
index 92df3f8685..cfc4386a36 100644
--- a/currency.py
+++ b/currency.py
@@ -9,11 +9,10 @@ from zeep.exceptions import Error
 from trytond.cache import Cache
 from trytond.config import config
 from trytond.model import fields
+from trytond.modules.currency.currency import CronFetchError
 from trytond.pool import PoolMeta
 from trytond.pyson import Eval, If
 
-from trytond.modules.currency.currency import CronFetchError
-
 URL = (
     'https://webservices.nbs.rs/CommunicationOfficeService1_0/'
     'ExchangeRateXmlService.asmx?WSDL')
diff --git a/setup.py b/setup.py
index 1ac7059a4d..24b46b2607 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 3cc4df99c8..318f996b74 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.currency_rs.tests.test_currency_rs import suite  # noqa: E501
+    from trytond.modules.currency_rs.tests.test_currency_rs import \
+        suite  # noqa: E501
 except ImportError:
     from .test_currency_rs import suite
 
diff --git a/tests/test_currency_rs.py b/tests/test_currency_rs.py
index 83f5c92612..2b0bc27000 100644
--- a/tests/test_currency_rs.py
+++ b/tests/test_currency_rs.py
@@ -4,10 +4,9 @@ import doctest
 import os
 import unittest
 
-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 CurrencyRsTestCase(ModuleTestCase):