python: Reorder imports with isort

Related to T2610

swh/lister/packagist/__init__.py

@@ -4,8 +4,8 @@
 
 
 def register():
-    from .models import PackagistModel
     from .lister import PackagistLister
+    from .models import PackagistModel
 
     return {
         "models": [PackagistModel],

swh/lister/packagist/lister.py

@@ -6,16 +6,14 @@
 import json
 import logging
 import random
-
 from typing import Any, Dict, List, Mapping
 
-from swh.scheduler import utils
-from swh.lister.core.simple_lister import SimpleLister
 from swh.lister.core.lister_transports import ListerOnePageApiTransport
+from swh.lister.core.simple_lister import SimpleLister
+from swh.scheduler import utils
 
 from .models import PackagistModel
 
-
 logger = logging.getLogger(__name__)
 
 

swh/lister/packagist/tests/test_lister.py

@@ -4,13 +4,12 @@
 # See top-level LICENSE file for more information
 
 import unittest
-import requests_mock
-
 from unittest.mock import patch
 
-from swh.lister.packagist.lister import PackagistLister, compute_package_url
-from swh.lister.core.tests.test_lister import HttpSimpleListerTester
+import requests_mock
 
+from swh.lister.core.tests.test_lister import HttpSimpleListerTester
+from swh.lister.packagist.lister import PackagistLister, compute_package_url
 
 expected_packages = [
     "0.0.0/composer-include-files",