fixed isort errors

- sorting inside project files
- configuration of sections (removed LIB since it is not defined as "known")
- changes for isort 5:
  - removed deprecated "-rc" (recursive is done by default now)
  - "-df" -> "--df"

.github/workflows/lint.yml

@@ -35,4 +35,4 @@ jobs:
         uses: liskin/gh-problem-matcher-wrap@v1
         with:
           linters: isort
-          run: isort -c -rc -df djangocms_transfer
+          run: isort --check-only --df djangocms_transfer

djangocms_transfer/datastructures.py

@@ -1,7 +1,7 @@
 from collections import namedtuple
 
-from django.core.serializers import deserialize
 from django.conf import settings
+from django.core.serializers import deserialize
 from django.db import transaction
 from django.utils.encoding import force_str
 from django.utils.functional import cached_property

djangocms_transfer/helpers.py

@@ -1,7 +1,7 @@
 from collections import defaultdict
 
-from django.core import serializers
 from django.conf import settings
+from django.core import serializers
 
 from . import get_serializer_name
 from .utils import get_plugin_fields, get_plugin_model

setup.cfg

@@ -21,7 +21,7 @@ include_trailing_comma = true
 multi_line_output = 5
 lines_after_imports = 2
 default_section = THIRDPARTY
-sections = FUTURE, STDLIB, DJANGO, CMS, THIRDPARTY, FIRSTPARTY, LIB, LOCALFOLDER
+sections = FUTURE, STDLIB, DJANGO, CMS, THIRDPARTY, FIRSTPARTY, LOCALFOLDER
 known_first_party = djangocms_transfer
 known_cms = cms, menus
 known_django = django

tox.ini

@@ -32,7 +32,7 @@ include_trailing_comma = true
 multi_line_output = 5
 lines_after_imports = 2
 default_section = THIRDPARTY
-sections = FUTURE, STDLIB, DJANGO, CMS, THIRDPARTY, FIRSTPARTY, LIB, LOCALFOLDER
+sections = FUTURE, STDLIB, DJANGO, CMS, THIRDPARTY, FIRSTPARTY, LOCALFOLDER
 known_first_party = djangocms_transfer
 known_cms = cms, menus
 known_django = django
@@ -63,7 +63,7 @@ commands = flake8 djangocms_transfer
 
 [testenv:isort]
 deps = isort
-commands = isort -c -rc -df djangocms_transfer
+commands = isort -c --df djangocms_transfer
 skip_install = true
 
 [testenv:black]