LITE-25849 Add isort

* Add isort library and settings
* Remove flake8-import-order
* Run isort
* Add isort run information to the README.md
* Fix build.yml

.github/workflows/build.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.6', '3.7', '3.8', '3.9', '3.10']
+        python-version: ['3.7', '3.8', '3.9', '3.10']
     steps:
       - name: Checkout project
         uses: actions/checkout@v2

README.md

@@ -271,7 +271,9 @@ Development
 ===========
 
 1. Python 3.6+
-0. Install dependencies `requirements/dev.txt` and `requirements/extra.txt`
+2. Install dependencies `requirements/dev.txt` and `requirements/extra.txt`
+3. We use `isort` library to order and format our imports, and we check it using `flake8-isort` library (automatically on `flake8` run).  
+For convenience you may run `isort .` to order imports.
 
 Testing
 =======

dj_rql/constants.py

@@ -3,7 +3,6 @@
 #
 
 from django.db import models
-
 from py_rql.constants import FilterLookups, FilterTypes as FT
 
 

dj_rql/drf/backend.py

@@ -3,10 +3,10 @@
 #
 from threading import Lock
 
-from dj_rql.drf._utils import get_query
-
 from rest_framework.filters import BaseFilterBackend
 
+from dj_rql.drf._utils import get_query
+
 
 lock = Lock()
 

dj_rql/drf/compat.py

@@ -4,23 +4,23 @@
 
 from collections import Counter
 
-from dj_rql.constants import DjangoLookups as DJL, FilterTypes
-from dj_rql.drf._utils import get_query
-from dj_rql.drf.backend import RQLFilterBackend
-
 from py_rql.constants import (
-    ComparisonOperators as CO,
     RQL_ANY_SYMBOL,
     RQL_FALSE,
     RQL_LIMIT_PARAM,
     RQL_NULL,
     RQL_OFFSET_PARAM,
     RQL_ORDERING_OPERATOR,
     RQL_TRUE,
+    ComparisonOperators as CO,
     SearchOperators as SO,
 )
 from py_rql.exceptions import RQLFilterParsingError
 
+from dj_rql.constants import DjangoLookups as DJL, FilterTypes
+from dj_rql.drf._utils import get_query
+from dj_rql.drf.backend import RQLFilterBackend
+
 
 class CompatibilityRQLFilterBackend(RQLFilterBackend):
     """

dj_rql/drf/paginations.py

@@ -2,17 +2,15 @@
 #  Copyright © 2022 Ingram Micro Inc. All rights reserved.
 #
 
-from dj_rql.drf._utils import get_query
-from dj_rql.transformer import RQLLimitOffsetTransformer
-
 from lark.exceptions import LarkError
-
 from py_rql.exceptions import RQLFilterParsingError
 from py_rql.parser import RQLParser
-
 from rest_framework.pagination import LimitOffsetPagination, _positive_int
 from rest_framework.response import Response
 
+from dj_rql.drf._utils import get_query
+from dj_rql.transformer import RQLLimitOffsetTransformer
+
 
 class RQLLimitOffsetPagination(LimitOffsetPagination):
     """ RQL limit offset pagination. """

dj_rql/filter_cls.py

@@ -8,23 +8,18 @@
 from datetime import datetime
 from uuid import uuid4
 
-from dj_rql._dataclasses import FilterArgs, OptimizationArgs
-from dj_rql.constants import DjangoLookups, FilterTypes, SUPPORTED_FIELD_TYPES
-from dj_rql.fields import SelectField
-from dj_rql.openapi import RQLFilterClassSpecification
-from dj_rql.qs import Annotation, NPR, NSR
-from dj_rql.transformer import RQLToDjangoORMTransformer
-
-from django.db.models import ForeignKey, ManyToManyField, Model, OneToOneField, OneToOneRel, Q
+from django.db.models import (
+    ForeignKey,
+    ManyToManyField,
+    Model,
+    OneToOneField,
+    OneToOneRel,
+    Q,
+)
 from django.utils.dateparse import parse_date, parse_datetime
 from django.utils.functional import cached_property
-
 from lark.exceptions import LarkError
-
 from py_rql.constants import (
-    ComparisonOperators,
-    FilterLookups,
-    ListOperators,
     RESERVED_FILTER_NAMES,
     RQL_ANY_SYMBOL,
     RQL_EMPTY,
@@ -34,11 +29,21 @@
     RQL_PLUS,
     RQL_SEARCH_PARAM,
     RQL_TRUE,
+    ComparisonOperators,
+    FilterLookups,
+    ListOperators,
     SearchOperators,
 )
 from py_rql.exceptions import RQLFilterLookupError, RQLFilterParsingError, RQLFilterValueError
 from py_rql.parser import RQLParser
 
+from dj_rql._dataclasses import FilterArgs, OptimizationArgs
+from dj_rql.constants import SUPPORTED_FIELD_TYPES, DjangoLookups, FilterTypes
+from dj_rql.fields import SelectField
+from dj_rql.openapi import RQLFilterClassSpecification
+from dj_rql.qs import NPR, NSR, Annotation
+from dj_rql.transformer import RQLToDjangoORMTransformer
+
 
 iterable_types = (list, tuple)
 

dj_rql/management/commands/generate_rql_class.py

@@ -5,12 +5,12 @@
 import json
 import re
 
-from dj_rql.filter_cls import NestedAutoRQLFilterClass
-
 from django.core.management import BaseCommand
 from django.db.models import ForeignKey, OneToOneField, OneToOneRel
 from django.utils.module_loading import import_string
 
+from dj_rql.filter_cls import NestedAutoRQLFilterClass
+
 
 TEMPLATE = """from {model_package} import {model_name}
 

dj_rql/openapi.py

@@ -5,12 +5,15 @@
 from copy import copy
 from numbers import Number
 
-from dj_rql.constants import FilterTypes
-
 from py_rql.constants import (
-    FilterLookups, RQL_NULL, RQL_ORDERING_OPERATOR, RQL_SEARCH_PARAM,
+    RQL_NULL,
+    RQL_ORDERING_OPERATOR,
+    RQL_SEARCH_PARAM,
+    FilterLookups,
 )
 
+from dj_rql.constants import FilterTypes
+
 
 class RQLFilterDescriptionTemplate:
     BASE_TEMPLATE = '{description}\n\n**lookups:** {lookups}'

dj_rql/transformer.py

@@ -2,19 +2,18 @@
 #  Copyright © 2022 Ingram Micro Inc. All rights reserved.
 #
 
-from dj_rql._dataclasses import FilterArgs
-
 from lark import Tree
-
 from py_rql.constants import (
+    RQL_LIMIT_PARAM,
+    RQL_OFFSET_PARAM,
     ComparisonOperators,
     ListOperators,
     LogicalOperators,
-    RQL_LIMIT_PARAM,
-    RQL_OFFSET_PARAM,
 )
 from py_rql.transformer import BaseRQLTransformer
 
+from dj_rql._dataclasses import FilterArgs
+
 
 class RQLToDjangoORMTransformer(BaseRQLTransformer):
     """ Parsed RQL AST tree transformer to Django ORM Query.

docs/conf.py

@@ -3,7 +3,6 @@
 from datetime import datetime
 
 import django
-
 from setuptools_scm import get_version
 
 

requirements/test.txt

@@ -18,6 +18,7 @@ flake8-commas==2.0.0
 flake8-comprehensions==3.7.0
 flake8-debugger==4.0.0
 flake8-eradicate==1.1.0
-flake8-import-order==0.18.1
+flake8-isort==5.0.3
 flake8-string-format==0.3.0
-importlib-metadata>=4.0.0,<5.0.0
+importlib-metadata>=4.0.0,<5.0.0
+isort==5.10.1

setup.cfg

@@ -12,3 +12,15 @@ addopts = --show-capture=no --create-db --nomigrations --junitxml=tests/reports/
 filterwarnings =
     ignore::UserWarning
 DJANGO_SETTINGS_MODULE = tests.dj_rf.settings
+
+[isort]
+src_paths = *
+sections = FUTURE,STDLIB,THIRDPARTY,FIRSTPARTY,LOCALFOLDER
+group_by_package = True
+multi_line_output = 3
+force_grid_wrap = 4
+combine_as_imports = True
+use_parentheses = True
+include_trailing_comma = True
+line_length = 100
+lines_after_imports = 2

tests/constants.py

@@ -3,7 +3,12 @@
 #
 
 from py_rql.constants import (
-    ComparisonOperators, ListOperators, LogicalOperators, RQL_EMPTY, RQL_NULL, SearchOperators,
+    RQL_EMPTY,
+    RQL_NULL,
+    ComparisonOperators,
+    ListOperators,
+    LogicalOperators,
+    SearchOperators,
 )
 
 

tests/dj_rf/filters.py

@@ -4,15 +4,22 @@
 from copy import deepcopy
 
 from cachetools import LFUCache, LRUCache
+from django.db.models import (
+    AutoField,
+    CharField,
+    F,
+    IntegerField,
+)
+from py_rql.constants import RQL_NULL, FilterLookups
 
 from dj_rql.fields import SelectField
 from dj_rql.filter_cls import RQLFilterClass
-from dj_rql.qs import AN, NSR, PR, SR
-
-from django.db.models import AutoField, CharField, F, IntegerField
-
-from py_rql.constants import FilterLookups, RQL_NULL
-
+from dj_rql.qs import (
+    AN,
+    NSR,
+    PR,
+    SR,
+)
 from tests.dj_rf.models import Book
 
 

tests/dj_rf/models.py

@@ -5,9 +5,7 @@
 from uuid import uuid4
 
 from django.db import models
-
 from django_fsm import FSMField
-
 from model_utils import Choices
 
 

tests/dj_rf/serializers.py

@@ -2,11 +2,15 @@
 #  Copyright © 2022 Ingram Micro Inc. All rights reserved.
 #
 
-from dj_rql.drf.serializers import RQLMixin
-
 from rest_framework import serializers
 
-from tests.dj_rf.models import Author, Book, Page, Publisher
+from dj_rql.drf.serializers import RQLMixin
+from tests.dj_rf.models import (
+    Author,
+    Book,
+    Page,
+    Publisher,
+)
 
 
 class PublisherReferenceSerializer(RQLMixin, serializers.ModelSerializer):

tests/dj_rf/settings.py

@@ -4,6 +4,7 @@
 
 import os
 
+
 BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
 
 SECRET_KEY = '6^1@%4#qtc+bookwp4w5k-+nbo+clm!skzdhnyl@rf&06b5tl6'

tests/dj_rf/urls.py

@@ -4,11 +4,14 @@
 
 from django.conf.urls import include
 from django.urls import re_path
-
 from rest_framework.routers import SimpleRouter
 
 from tests.dj_rf.view import (
-    AutoViewSet, DRFViewSet, DjangoFiltersViewSet, DynamicFilterClsViewSet, NoFilterClsViewSet,
+    AutoViewSet,
+    DjangoFiltersViewSet,
+    DRFViewSet,
+    DynamicFilterClsViewSet,
+    NoFilterClsViewSet,
     SelectViewSet,
 )
 

tests/dj_rf/view.py

@@ -2,20 +2,20 @@
 #  Copyright © 2022 Ingram Micro Inc. All rights reserved.
 #
 
-from dj_rql.drf.backend import RQLFilterBackend
-from dj_rql.drf.compat import DjangoFiltersRQLFilterBackend
-from dj_rql.drf.paginations import RQLContentRangeLimitOffsetPagination
-from dj_rql.filter_cls import AutoRQLFilterClass
-
 from django.db.models import CharField, IntegerField, Value
-
 from rest_framework import mixins
 from rest_framework.decorators import action
 from rest_framework.response import Response
 from rest_framework.viewsets import GenericViewSet
 
+from dj_rql.drf.backend import RQLFilterBackend
+from dj_rql.drf.compat import DjangoFiltersRQLFilterBackend
+from dj_rql.drf.paginations import RQLContentRangeLimitOffsetPagination
+from dj_rql.filter_cls import AutoRQLFilterClass
 from tests.dj_rf.filters import (
-    BooksFilterClass, SelectBooksFilterClass, SelectDetailedBooksFilterClass,
+    BooksFilterClass,
+    SelectBooksFilterClass,
+    SelectDetailedBooksFilterClass,
 )
 from tests.dj_rf.models import Book
 from tests.dj_rf.serializers import BookSerializer, SelectBookSerializer

tests/test_commands/test_generate_rql_class.py

@@ -4,9 +4,8 @@
 
 import os
 
-from django.core.management import call_command
-
 import pytest
+from django.core.management import call_command
 
 from tests.dj_rf.models import AutoMain, Publisher
 

tests/test_drf/conftest.py

@@ -2,12 +2,11 @@
 #  Copyright © 2021 Ingram Micro Inc. All rights reserved.
 #
 
-from dj_rql.drf.backend import RQLFilterBackend, _FilterClassCache
-
 import pytest
-
 from rest_framework.test import APIClient
 
+from dj_rql.drf.backend import RQLFilterBackend, _FilterClassCache
+
 
 @pytest.fixture
 def api_client():