Follow isort formatting

issue10928

.isort.cfg

@@ -0,0 +1,3 @@
+[settings]
+multi_line_output=4
+known_first_party=trytond

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')

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):

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
 

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):