Enforce import order

.flake8

@@ -1,5 +1,7 @@
 [flake8]
 max-line-length = 120
+application-import-names = dmoj,judge,django_ace,event_socket_server
+import-order-style = pycharm
 ignore =
     W504, # line break occurred after a binary operator
 per-file-ignores =

.travis.yml

@@ -1,6 +1,6 @@
 language: python
 python: 3.7
-install: pip install flake8
+install: pip install flake8 flake8-import-order
 script:
   - flake8 --version
   - flake8

dmoj/celery.py

@@ -10,7 +10,7 @@ os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'dmoj.settings')
 
 app = Celery('dmoj')
 
-from django.conf import settings  # noqa: E402, django must be imported here
+from django.conf import settings  # noqa: E402, I202, django must be imported here
 app.config_from_object(settings, namespace='CELERY')
 
 if hasattr(settings, 'CELERY_BROKER_URL_SECRET'):

dmoj/throttle_mail.py

@@ -1,8 +1,8 @@
 import traceback
 
+from django.conf import settings
 from django.core.cache import cache
 from django.utils.log import AdminEmailHandler
-from django.conf import settings
 
 DEFAULT_THROTTLE = (10, 60)
 

dmoj/urls.py

@@ -6,22 +6,23 @@ from django.contrib.sitemaps.views import sitemap
 from django.http import Http404, HttpResponsePermanentRedirect
 from django.templatetags.static import static
 from django.urls import reverse
-from django.utils.translation import ugettext_lazy as _
 from django.utils.functional import lazystr
+from django.utils.translation import ugettext_lazy as _
 from django.views.generic import RedirectView
 
-from judge.feed import CommentFeed, AtomCommentFeed, BlogFeed, AtomBlogFeed, ProblemFeed, AtomProblemFeed
+from judge.feed import AtomBlogFeed, AtomCommentFeed, AtomProblemFeed, BlogFeed, CommentFeed, ProblemFeed
 from judge.forms import CustomAuthenticationForm
-from judge.sitemap import ProblemSitemap, UserSitemap, HomePageSitemap, UrlSitemap, ContestSitemap, \
-    OrganizationSitemap, BlogPostSitemap, SolutionSitemap
-from judge.views import TitledTemplateView
-from judge.views import organization, language, status, blog, problem, mailgun, license, register, user, \
-    submission, widgets, comment, contests, api, ranked_submission, stats, preview, ticket, totp, tasks, problem_manage
+from judge.sitemap import BlogPostSitemap, ContestSitemap, HomePageSitemap, OrganizationSitemap, ProblemSitemap, \
+    SolutionSitemap, UrlSitemap, UserSitemap
+from judge.views import TitledTemplateView, api, blog, comment, contests, language, license, mailgun, organization, \
+    preview, problem, problem_manage, ranked_submission, register, stats, status, submission, tasks, ticket, totp, \
+    user, widgets
 from judge.views.problem_data import ProblemDataView, ProblemSubmissionDiff, \
     problem_data_file, problem_init_view
-from judge.views.register import RegistrationView, ActivationView
-from judge.views.select2 import UserSelect2View, OrganizationSelect2View, ProblemSelect2View, CommentSelect2View, \
-    ContestSelect2View, UserSearchSelect2View, ContestUserSearchSelect2View, TicketUserSelect2View, AssigneeSelect2View
+from judge.views.register import ActivationView, RegistrationView
+from judge.views.select2 import AssigneeSelect2View, CommentSelect2View, ContestSelect2View, \
+    ContestUserSearchSelect2View, OrganizationSelect2View, ProblemSelect2View, TicketUserSelect2View, \
+    UserSearchSelect2View, UserSelect2View
 
 admin.autodiscover()
 

dmoj/wsgi_async.py

@@ -21,5 +21,5 @@ else:
         partial(MySQLdb.connect, waiter=gevent_waiter)
     )
 
-from django.core.wsgi import get_wsgi_application  # noqa: E402, django must be imported here
+from django.core.wsgi import get_wsgi_application  # noqa: E402, I202, django must be imported here
 application = get_wsgi_application()

event_socket_server/__init__.py

@@ -1,7 +1,7 @@
 from .base_server import BaseServer
 from .engines import *
 from .handler import Handler
-from .helpers import SizedPacketHandler, ZlibPacketHandler, ProxyProtocolMixin
+from .helpers import ProxyProtocolMixin, SizedPacketHandler, ZlibPacketHandler
 
 
 def get_preferred_engine(choices=('epoll', 'poll', 'select')):

event_socket_server/base_server.py

@@ -2,10 +2,9 @@ import logging
 import socket
 import threading
 import time
-
 from collections import defaultdict, deque
 from functools import total_ordering
-from heapq import heappush, heappop
+from heapq import heappop, heappush
 
 logger = logging.getLogger('event_socket_server')
 

event_socket_server/helpers.py

@@ -2,7 +2,6 @@ import struct
 import zlib
 
 from judge.utils.unicode import utf8text
-
 from .handler import Handler
 
 size_pack = struct.Struct('!I')

judge/admin/__init__.py

@@ -2,8 +2,8 @@ from django.contrib import admin
 from django.contrib.admin.models import LogEntry
 
 from judge.admin.comments import CommentAdmin
-from judge.admin.contest import ContestTagAdmin, ContestAdmin, ContestParticipationAdmin
-from judge.admin.interface import NavigationBarAdmin, BlogPostAdmin, LicenseAdmin, LogEntryAdmin
+from judge.admin.contest import ContestAdmin, ContestParticipationAdmin, ContestTagAdmin
+from judge.admin.interface import BlogPostAdmin, LicenseAdmin, LogEntryAdmin, NavigationBarAdmin
 from judge.admin.organization import OrganizationAdmin, OrganizationRequestAdmin
 from judge.admin.problem import ProblemAdmin
 from judge.admin.profile import ProfileAdmin

judge/admin/comments.py

@@ -1,7 +1,7 @@
 from django.forms import ModelForm
 from django.urls import reverse_lazy
 from django.utils.html import format_html
-from django.utils.translation import ungettext, gettext_lazy as _
+from django.utils.translation import gettext_lazy as _, ungettext
 from reversion.admin import VersionAdmin
 
 from judge.models import Comment

judge/admin/contest.py

@@ -2,20 +2,20 @@ from django.conf import settings
 from django.conf.urls import url
 from django.contrib import admin, messages
 from django.core.exceptions import PermissionDenied
-from django.db import transaction, connection
-from django.db.models import TextField, Q
+from django.db import connection, transaction
+from django.db.models import Q, TextField
 from django.forms import ModelForm, ModelMultipleChoiceField
-from django.http import HttpResponseRedirect, Http404
+from django.http import Http404, HttpResponseRedirect
 from django.shortcuts import get_object_or_404
-from django.urls import reverse_lazy, reverse
+from django.urls import reverse, reverse_lazy
 from django.utils.html import format_html
 from django.utils.translation import gettext_lazy as _, ugettext, ungettext
 from reversion.admin import VersionAdmin
 
 from judge.models import Contest, ContestProblem, ContestSubmission, Profile, Rating
 from judge.ratings import rate_contest
-from judge.widgets import HeavySelect2Widget, HeavySelect2MultipleWidget, AdminPagedownWidget, Select2MultipleWidget, \
-    HeavyPreviewAdminPageDownWidget, Select2Widget
+from judge.widgets import AdminPagedownWidget, HeavyPreviewAdminPageDownWidget, HeavySelect2MultipleWidget, \
+    HeavySelect2Widget, Select2MultipleWidget, Select2Widget
 
 
 class HeavySelect2Widget(HeavySelect2Widget):

judge/admin/interface.py

@@ -1,7 +1,7 @@
 from django.contrib import admin
 from django.contrib.auth.models import User
 from django.forms import ModelForm
-from django.urls import reverse, reverse_lazy, NoReverseMatch
+from django.urls import NoReverseMatch, reverse, reverse_lazy
 from django.utils.html import format_html
 from django.utils.translation import gettext_lazy as _
 from mptt.admin import DraggableMPTTAdmin
@@ -9,7 +9,7 @@ from reversion.admin import VersionAdmin
 
 from judge.dblock import LockModel
 from judge.models import NavigationBar
-from judge.widgets import HeavySelect2MultipleWidget, HeavyPreviewAdminPageDownWidget, HeavySelect2Widget
+from judge.widgets import HeavyPreviewAdminPageDownWidget, HeavySelect2MultipleWidget, HeavySelect2Widget
 
 
 class NavigationBarAdmin(DraggableMPTTAdmin):

judge/admin/organization.py

@@ -6,7 +6,7 @@ from django.utils.translation import gettext, gettext_lazy as _
 from reversion.admin import VersionAdmin
 
 from judge.models import Organization
-from judge.widgets import HeavySelect2MultipleWidget, HeavySelect2Widget, HeavyPreviewAdminPageDownWidget
+from judge.widgets import HeavyPreviewAdminPageDownWidget, HeavySelect2MultipleWidget, HeavySelect2Widget
 
 
 class OrganizationForm(ModelForm):

judge/admin/problem.py

@@ -7,13 +7,12 @@ from django.db.models import Q
 from django.forms import ModelForm
 from django.urls import reverse_lazy
 from django.utils.html import format_html
-from django.utils.translation import gettext, ungettext, gettext_lazy as _
+from django.utils.translation import gettext, gettext_lazy as _, ungettext
 from reversion.admin import VersionAdmin
 
-from judge.models import Profile, LanguageLimit, ProblemTranslation, Problem, ProblemClarification
-from judge.models import Solution
-from judge.widgets import HeavySelect2MultipleWidget, Select2MultipleWidget, Select2Widget, \
-    HeavyPreviewAdminPageDownWidget, HeavyPreviewPageDownWidget, CheckboxSelectMultipleWithSelectAll
+from judge.models import LanguageLimit, Problem, ProblemClarification, ProblemTranslation, Profile, Solution
+from judge.widgets import CheckboxSelectMultipleWithSelectAll, HeavyPreviewAdminPageDownWidget, \
+    HeavyPreviewPageDownWidget, HeavySelect2MultipleWidget, Select2MultipleWidget, Select2Widget
 
 
 class ProblemForm(ModelForm):

judge/admin/profile.py

@@ -1,12 +1,12 @@
 from django.contrib import admin
 from django.forms import ModelForm
 from django.utils.html import format_html
-from django.utils.translation import gettext_lazy as _, gettext, ungettext
+from django.utils.translation import gettext, gettext_lazy as _, ungettext
 from reversion.admin import VersionAdmin
 
 from django_ace import AceWidget
 from judge.models import Profile
-from judge.widgets import Select2Widget, AdminPagedownWidget
+from judge.widgets import AdminPagedownWidget, Select2Widget
 
 
 class ProfileForm(ModelForm):

judge/admin/runtime.py

@@ -1,6 +1,6 @@
 from django.conf.urls import url
 from django.db.models import TextField
-from django.forms import TextInput, ModelForm, ModelMultipleChoiceField
+from django.forms import ModelForm, ModelMultipleChoiceField, TextInput
 from django.http import HttpResponseRedirect
 from django.shortcuts import get_object_or_404
 from django.urls import reverse

judge/admin/submission.py

@@ -10,11 +10,11 @@ from django.db.models import Q
 from django.http import HttpResponseRedirect
 from django.shortcuts import get_object_or_404
 from django.utils.html import format_html
-from django.utils.translation import gettext_lazy as _, pgettext, gettext, ungettext
+from django.utils.translation import gettext, gettext_lazy as _, pgettext, ungettext
 
 from django_ace import AceWidget
-from judge.models import Submission, SubmissionTestCase, SubmissionSource, ContestSubmission, ContestParticipation, \
-    ContestProblem, Profile
+from judge.models import ContestParticipation, ContestProblem, ContestSubmission, Profile, Submission, \
+    SubmissionSource, SubmissionTestCase
 from judge.utils.raw_sql import use_straight_join
 
 

judge/admin/ticket.py

@@ -4,7 +4,7 @@ from django.forms import ModelForm
 from django.urls import reverse_lazy
 
 from judge.models import TicketMessage
-from judge.widgets import HeavySelect2Widget, HeavySelect2MultipleWidget, HeavyPreviewAdminPageDownWidget
+from judge.widgets import HeavyPreviewAdminPageDownWidget, HeavySelect2MultipleWidget, HeavySelect2Widget
 
 
 class TicketMessageForm(ModelForm):

judge/bridge/__init__.py

@@ -1,7 +1,6 @@
-from .judgelist import JudgeList
-from .judgehandler import JudgeHandler
-from .judgeserver import JudgeServer
-
 from .djangohandler import DjangoHandler
-from .judgecallback import DjangoJudgeHandler
 from .djangoserver import DjangoServer
+from .judgecallback import DjangoJudgeHandler
+from .judgehandler import JudgeHandler
+from .judgelist import JudgeList
+from .judgeserver import JudgeServer

judge/bridge/djangohandler.py

@@ -1,5 +1,5 @@
-import logging
 import json
+import logging
 import struct
 
 from event_socket_server import ZlibPacketHandler

judge/bridge/judgecallback.py

@@ -8,7 +8,7 @@ from django.utils import timezone
 
 from judge import event_poster as event
 from judge.caching import finished_submission
-from judge.models import Submission, SubmissionTestCase, Problem, Judge, Language, LanguageLimit, RuntimeVersion
+from judge.models import Judge, Language, LanguageLimit, Problem, RuntimeVersion, Submission, SubmissionTestCase
 from .judgehandler import JudgeHandler, SubmissionData
 
 logger = logging.getLogger('judge.bridge')

judge/bridge/judgehandler.py

@@ -3,7 +3,7 @@ import logging
 import time
 from collections import deque, namedtuple
 
-from event_socket_server import ZlibPacketHandler, ProxyProtocolMixin
+from event_socket_server import ProxyProtocolMixin, ZlibPacketHandler
 
 logger = logging.getLogger('judge.bridge')
 

judge/comments.py

@@ -4,7 +4,7 @@ from django.contrib.auth.decorators import login_required
 from django.contrib.contenttypes.models import ContentType
 from django.core.exceptions import ValidationError
 from django.db.models import Count
-from django.db.models.expressions import Value, F
+from django.db.models.expressions import F, Value
 from django.db.models.functions import Coalesce
 from django.forms import ModelForm
 from django.http import HttpResponseForbidden, HttpResponseNotFound, HttpResponseRedirect
@@ -19,7 +19,7 @@ from reversion.models import Revision, Version
 
 from judge.dblock import LockModel
 from judge.models import Comment, CommentLock, CommentVote
-from judge.utils.raw_sql import unique_together_left_join, RawSQLColumn
+from judge.utils.raw_sql import RawSQLColumn, unique_together_left_join
 from judge.widgets import HeavyPreviewPageDownWidget
 
 

judge/contest_format/__init__.py

@@ -2,4 +2,4 @@ from judge.contest_format.atcoder import AtCoderContestFormat
 from judge.contest_format.default import DefaultContestFormat
 from judge.contest_format.ecoo import ECOOContestFormat
 from judge.contest_format.ioi import IOIContestFormat
-from judge.contest_format.registry import formats, choices
+from judge.contest_format.registry import choices, formats

judge/contest_format/default.py

@@ -1,4 +1,5 @@
 from datetime import timedelta
+
 from django.core.exceptions import ValidationError
 from django.db.models import Max
 from django.template.defaultfilters import floatformat

judge/contest_format/ecoo.py

@@ -1,4 +1,5 @@
 from datetime import timedelta
+
 from django.core.exceptions import ValidationError
 from django.db import connection
 from django.template.defaultfilters import floatformat

judge/event_poster_amqp.py

@@ -2,11 +2,10 @@ import json
 import threading
 from time import time
 
-from django.conf import settings
 import pika
+from django.conf import settings
 from pika.exceptions import AMQPError
 
-
 __all__ = ['EventPoster', 'post', 'last']
 
 

judge/event_poster_ws.py

@@ -3,7 +3,7 @@ import socket
 import threading
 
 from django.conf import settings
-from websocket import create_connection, WebSocketException
+from websocket import WebSocketException, create_connection
 
 __all__ = ['EventPostingError', 'EventPoster', 'post', 'last']
 _local = threading.local()

judge/feed.py

@@ -6,7 +6,7 @@ from django.utils import timezone
 from django.utils.feedgenerator import Atom1Feed
 
 from judge.jinja2.markdown import markdown
-from judge.models import Comment, BlogPost, Problem
+from judge.models import BlogPost, Comment, Problem
 
 
 class ProblemFeed(Feed):

judge/forms.py

@@ -7,15 +7,15 @@ from django.contrib.auth.forms import AuthenticationForm
 from django.core.exceptions import ValidationError
 from django.core.validators import RegexValidator
 from django.db.models import Q
-from django.forms import ModelForm, CharField, Form
+from django.forms import CharField, Form, ModelForm
 from django.urls import reverse_lazy
 from django.utils.translation import gettext_lazy as _
 
 from django_ace import AceWidget
-from judge.models import Organization, Problem, Profile, Submission, PrivateMessage, Language
+from judge.models import Language, Organization, PrivateMessage, Problem, Profile, Submission
 from judge.utils.subscription import newsletter_id
-from judge.widgets import MathJaxPagedownWidget, HeavyPreviewPageDownWidget, PagedownWidget, \
-    Select2Widget, Select2MultipleWidget
+from judge.widgets import HeavyPreviewPageDownWidget, MathJaxPagedownWidget, PagedownWidget, Select2MultipleWidget, \
+    Select2Widget
 
 
 def fix_unicode(string, unsafe=tuple('\u202a\u202b\u202d\u202e')):

judge/fulltext.py

@@ -1,6 +1,6 @@
 # From: http://www.mercurytide.co.uk/news/article/django-full-text-search/
 
-from django.db import models, connection
+from django.db import connection, models
 from django.db.models.query import QuerySet
 
 

judge/jinja2/camo.py

@@ -1,5 +1,4 @@
 from judge.utils.camo import client as camo_client
-
 from . import registry
 
 

judge/jinja2/markdown/__init__.py

@@ -7,11 +7,11 @@ import mistune
 from django.conf import settings
 from jinja2 import Markup
 from lxml import html
-from lxml.etree import XMLSyntaxError, ParserError
+from lxml.etree import ParserError, XMLSyntaxError
 
 from judge.highlight_code import highlight_code
 from judge.jinja2.markdown.lazy_load import lazy_load as lazy_load_processor
-from judge.jinja2.markdown.math import MathRenderer, MathInlineLexer, MathInlineGrammar
+from judge.jinja2.markdown.math import MathInlineGrammar, MathInlineLexer, MathRenderer
 from judge.utils.camo import client as camo_client
 from judge.utils.texoid import TEXOID_ENABLED, TexoidRenderer
 from .. import registry

judge/jinja2/render.py

@@ -1,5 +1,5 @@
-from django.template import (Template as DjangoTemplate, TemplateSyntaxError as DjangoTemplateSyntaxError,
-                             VariableDoesNotExist, Context)
+from django.template import (Context, Template as DjangoTemplate, TemplateSyntaxError as DjangoTemplateSyntaxError,
+                             VariableDoesNotExist)
 
 from . import registry
 

judge/jinja2/social.py

@@ -1,6 +1,6 @@
 from django.template.loader import get_template
 from django.utils.safestring import mark_safe
-from django_social_share.templatetags.social_share import post_to_gplus_url, post_to_twitter_url, post_to_facebook_url
+from django_social_share.templatetags.social_share import post_to_facebook_url, post_to_gplus_url, post_to_twitter_url
 
 from . import registry
 

judge/jinja2/spaceless.py

@@ -1,6 +1,6 @@
 import re
 
-from jinja2 import nodes, Markup
+from jinja2 import Markup, nodes
 from jinja2.ext import Extension
 
 

judge/jinja2/timedelta.py

@@ -1,7 +1,6 @@
 import datetime
 
 from judge.utils.timedelta import nice_repr
-
 from . import registry
 
 

judge/lxml_tree.py

@@ -1,6 +1,6 @@
 import logging
 
-from django.utils.safestring import mark_safe, SafeData
+from django.utils.safestring import SafeData, mark_safe
 from lxml import html
 from lxml.etree import ParserError, XMLSyntaxError
 

judge/management/commands/adduser.py

@@ -1,7 +1,7 @@
-from django.core.management.base import BaseCommand
 from django.contrib.auth.models import User
+from django.core.management.base import BaseCommand
 
-from judge.models import Profile, Language
+from judge.models import Language, Profile
 
 
 class Command(BaseCommand):

judge/management/commands/render_pdf.py

@@ -8,7 +8,7 @@ from django.template.loader import get_template
 from django.utils import translation
 
 from judge.models import Problem, ProblemTranslation
-from judge.pdf_problems import DefaultPdfMaker, PhantomJSPdfMaker, SlimerJSPdfMaker, PuppeteerPDFRender
+from judge.pdf_problems import DefaultPdfMaker, PhantomJSPdfMaker, PuppeteerPDFRender, SlimerJSPdfMaker
 
 
 class Command(BaseCommand):

judge/middleware.py

@@ -1,6 +1,6 @@
 from django.conf import settings
 from django.http import HttpResponseRedirect
-from django.urls import reverse, resolve, Resolver404
+from django.urls import Resolver404, resolve, reverse
 from django.utils.http import urlquote
 
 

judge/migrations/0001_squashed_0084_contest_formats.py

@@ -2,18 +2,16 @@
 # Generated by Django 1.11.20 on 2019-04-18 02:06
 from __future__ import unicode_literals
 
-from django.conf import settings
 import django.core.validators
-from django.db import migrations, models
-import django.db.models.deletion
 import django.utils.timezone
 import jsonfield.fields
-import judge.models.interface
-import judge.models.problem_data
-import judge.models.profile
-import judge.utils.problem_data
 import mptt.fields
 import sortedm2m.fields
+from django.conf import settings
+from django.db import migrations, models
+
+import judge.models.interface
+import judge.utils.problem_data
 
 
 class Migration(migrations.Migration):

judge/migrations/0085_submission_source.py

@@ -2,8 +2,8 @@
 # Generated by Django 1.11.15 on 2019-01-31 22:18
 from __future__ import unicode_literals
 
-from django.db import migrations, models
 import django.db.models.deletion
+from django.db import migrations, models
 
 
 class Migration(migrations.Migration):

judge/models/__init__.py

@@ -1,16 +1,16 @@
 from reversion import revisions
 
-from judge.models.choices import TIMEZONE, ACE_THEMES, MATH_ENGINES_CHOICES, EFFECTIVE_MATH_ENGINES
+from judge.models.choices import ACE_THEMES, EFFECTIVE_MATH_ENGINES, MATH_ENGINES_CHOICES, TIMEZONE
 from judge.models.comment import Comment, CommentLock, CommentVote
-from judge.models.contest import Contest, ContestTag, ContestParticipation, ContestProblem, ContestSubmission, Rating
-from judge.models.interface import MiscConfig, validate_regex, NavigationBar, BlogPost
+from judge.models.contest import Contest, ContestParticipation, ContestProblem, ContestSubmission, ContestTag, Rating
+from judge.models.interface import BlogPost, MiscConfig, NavigationBar, validate_regex
 from judge.models.message import PrivateMessage, PrivateMessageThread
-from judge.models.problem import ProblemGroup, ProblemType, Problem, ProblemClarification, ProblemTranslation, \
-    TranslatedProblemQuerySet, TranslatedProblemForeignKeyQuerySet, License, LanguageLimit, Solution
-from judge.models.problem_data import problem_data_storage, problem_directory_file, ProblemData, ProblemTestCase, \
-    CHECKERS
-from judge.models.profile import Profile, Organization, OrganizationRequest
-from judge.models.runtime import Language, RuntimeVersion, Judge
+from judge.models.problem import LanguageLimit, License, Problem, ProblemClarification, ProblemGroup, \
+    ProblemTranslation, ProblemType, Solution, TranslatedProblemForeignKeyQuerySet, TranslatedProblemQuerySet
+from judge.models.problem_data import CHECKERS, ProblemData, ProblemTestCase, problem_data_storage, \
+    problem_directory_file
+from judge.models.profile import Organization, OrganizationRequest, Profile
+from judge.models.runtime import Judge, Language, RuntimeVersion
 from judge.models.submission import SUBMISSION_RESULT, Submission, SubmissionSource, SubmissionTestCase
 from judge.models.ticket import Ticket, TicketMessage
 

judge/models/contest.py

@@ -5,12 +5,12 @@ from django.db.models import CASCADE
 from django.urls import reverse
 from django.utils import timezone
 from django.utils.functional import cached_property
-from django.utils.translation import gettext_lazy as _, gettext
+from django.utils.translation import gettext, gettext_lazy as _
 from jsonfield import JSONField
 
 from judge import contest_format
 from judge.models.problem import Problem
-from judge.models.profile import Profile, Organization
+from judge.models.profile import Organization, Profile
 from judge.models.submission import Submission
 
 __all__ = ['Contest', 'ContestTag', 'ContestParticipation', 'ContestProblem', 'ContestSubmission', 'Rating']

judge/models/problem.py

@@ -5,7 +5,7 @@ from django.contrib.contenttypes.fields import GenericRelation
 from django.core.cache import cache
 from django.core.validators import MaxValueValidator, MinValueValidator, RegexValidator
 from django.db import models
-from django.db.models import F, QuerySet, CASCADE, SET_NULL
+from django.db.models import CASCADE, F, QuerySet, SET_NULL
 from django.db.models.expressions import RawSQL
 from django.db.models.functions import Coalesce
 from django.urls import reverse
@@ -13,10 +13,10 @@ from django.utils.functional import cached_property
 from django.utils.translation import gettext_lazy as _
 
 from judge.fulltext import SearchQuerySet
-from judge.models.profile import Profile, Organization
+from judge.models.profile import Organization, Profile
 from judge.models.runtime import Language
 from judge.user_translations import gettext as user_gettext
-from judge.utils.raw_sql import unique_together_left_join, RawSQLColumn
+from judge.utils.raw_sql import RawSQLColumn, unique_together_left_join
 
 __all__ = ['ProblemGroup', 'ProblemType', 'Problem', 'ProblemTranslation', 'ProblemClarification',
            'License', 'Solution', 'TranslatedProblemQuerySet', 'TranslatedProblemForeignKeyQuerySet']

judge/models/profile.py

@@ -12,7 +12,7 @@ from django.utils.translation import gettext_lazy as _
 from fernet_fields import EncryptedCharField
 from sortedm2m.fields import SortedManyToManyField
 
-from judge.models.choices import TIMEZONE, ACE_THEMES, MATH_ENGINES_CHOICES
+from judge.models.choices import ACE_THEMES, MATH_ENGINES_CHOICES, TIMEZONE
 from judge.ratings import rating_class
 
 __all__ = ['Organization', 'Profile', 'OrganizationRequest']

judge/models/runtime.py

@@ -2,9 +2,9 @@ from collections import OrderedDict, defaultdict
 from operator import attrgetter
 
 from django.core.cache import cache
+from django.db import models
 from django.db.models import CASCADE
 from django.urls import reverse
-from django.db import models
 from django.utils import timezone
 from django.utils.functional import cached_property
 from django.utils.translation import gettext_lazy as _

judge/models/submission.py

@@ -8,13 +8,12 @@ from django.urls import reverse
 from django.utils.functional import cached_property
 from django.utils.translation import gettext_lazy as _
 
-from judge.judgeapi import judge_submission, abort_submission
+from judge.judgeapi import abort_submission, judge_submission
 from judge.models.problem import Problem, TranslatedProblemForeignKeyQuerySet
 from judge.models.profile import Profile
 from judge.models.runtime import Language
 from judge.utils.unicode import utf8bytes
 
-
 __all__ = ['SUBMISSION_RESULT', 'Submission', 'SubmissionSource', 'SubmissionTestCase']
 
 SUBMISSION_RESULT = (

judge/pdf_problems.py

@@ -1,8 +1,7 @@
 import errno
-import logging
-
 import io
 import json
+import logging
 import os
 import shutil
 import subprocess

judge/signals.py

@@ -5,12 +5,12 @@ from django.conf import settings
 from django.contrib.sites.models import Site
 from django.core.cache import cache
 from django.core.cache.utils import make_template_fragment_key
-from django.db.models.signals import post_save, post_delete
+from django.db.models.signals import post_delete, post_save
 from django.dispatch import receiver
 
 from .caching import finished_submission
-from .models import Problem, Contest, Submission, Organization, Profile, MiscConfig, Language, Judge, \
-    BlogPost, ContestSubmission, Comment, License, EFFECTIVE_MATH_ENGINES
+from .models import BlogPost, Comment, Contest, ContestSubmission, EFFECTIVE_MATH_ENGINES, Judge, Language, License, \
+    MiscConfig, Organization, Problem, Profile, Submission
 
 
 def get_pdf_path(basename):

judge/sitemap.py

@@ -3,7 +3,7 @@ from django.contrib.sitemaps import Sitemap
 from django.urls import reverse
 from django.utils import timezone
 
-from judge.models import Problem, Organization, Contest, BlogPost, Solution
+from judge.models import BlogPost, Contest, Organization, Problem, Solution
 
 
 class ProblemSitemap(Sitemap):

judge/social_auth.py

@@ -17,7 +17,7 @@ from social_core.pipeline.partial import partial
 from social_django.middleware import SocialAuthExceptionMiddleware as OldSocialAuthExceptionMiddleware
 
 from judge.forms import ProfileForm
-from judge.models import Profile, Language
+from judge.models import Language, Profile
 
 logger = logging.getLogger('judge.social_auth')
 

judge/tasks/submission.py

@@ -2,7 +2,7 @@ from celery import shared_task
 from django.core.cache import cache
 from django.utils.translation import gettext as _
 
-from judge.models import Submission, Profile, Problem
+from judge.models import Problem, Profile, Submission
 from judge.utils.celery import Progress
 
 __all__ = ('apply_submission_filter', 'rejudge_problem_filter', 'rescore_problem')

judge/template_context.py

@@ -7,7 +7,7 @@ from django.core.cache import cache
 from django.utils.functional import SimpleLazyObject, new_method_proxy
 
 from judge.utils.caniuse import CanIUse, SUPPORT
-from .models import Profile, MiscConfig, NavigationBar
+from .models import MiscConfig, NavigationBar, Profile
 
 
 class FixedSimpleLazyObject(SimpleLazyObject):

judge/templatetags/list_processor.py

@@ -1,4 +1,4 @@
-from operator import itemgetter, attrgetter
+from operator import attrgetter, itemgetter
 
 from django import template
 

judge/user_log.py

@@ -1,6 +1,7 @@
-from judge.models import Profile
 from django.utils.timezone import now
 
+from judge.models import Profile
+
 
 class LogUserAccessMiddleware(object):
     def __init__(self, get_response=None):

judge/utils/caniuse.py

@@ -1,5 +1,4 @@
 import requests
-
 from ua_parser import user_agent_parser
 
 _SUPPORT_DATA = requests.get('https://raw.githubusercontent.com/Fyrd/caniuse/master/data.json').json()['data']

judge/utils/diggpaginator.py

@@ -1,8 +1,7 @@
 import math
-
 from functools import reduce
 
-from django.core.paginator import Paginator, Page, InvalidPage
+from django.core.paginator import InvalidPage, Page, Paginator
 
 __all__ = (
     'InvalidPage',

judge/utils/problems.py

@@ -2,12 +2,12 @@ from collections import defaultdict
 from math import e
 
 from django.core.cache import cache
-from django.db.models import F, Count, Max, Q, ExpressionWrapper, Case, When
+from django.db.models import Case, Count, ExpressionWrapper, F, Max, Q, When
 from django.db.models.fields import FloatField
 from django.utils import timezone
 from django.utils.translation import gettext as _, gettext_noop
 
-from judge.models import Submission, Problem
+from judge.models import Problem, Submission
 
 __all__ = ['contest_completed_ids', 'get_result_data', 'user_completed_ids', 'user_authored_ids', 'user_editable_ids']
 

judge/utils/raw_sql.py

@@ -3,7 +3,7 @@ from copy import copy
 from django.db import connections
 from django.db.models import Field
 from django.db.models.expressions import RawSQL
-from django.db.models.sql.constants import LOUTER, INNER
+from django.db.models.sql.constants import INNER, LOUTER
 from django.db.models.sql.datastructures import Join
 from django.utils import six
 

judge/utils/timedelta.py

@@ -1,4 +1,5 @@
 import datetime
+
 from django.utils.translation import npgettext, pgettext, ungettext
 
 

judge/views/api/api_v1.py

@@ -1,7 +1,7 @@
 from operator import attrgetter
 
-from django.db.models import Prefetch, F
-from django.http import JsonResponse, Http404
+from django.db.models import F, Prefetch
+from django.http import Http404, JsonResponse
 from django.shortcuts import get_object_or_404
 
 from dmoj import settings

judge/views/api/api_v2.py

@@ -3,7 +3,7 @@ from operator import attrgetter
 from django.db.models import Max
 from django.http import JsonResponse
 
-from judge.models import Problem, Profile, Submission, ContestParticipation
+from judge.models import ContestParticipation, Problem, Profile, Submission
 from judge.utils.ranker import ranker
 from judge.views.contests import contest_ranking_list
 

judge/views/blog.py

@@ -1,4 +1,4 @@
-from django.db.models import Q, Max, Count
+from django.db.models import Count, Max, Q
 from django.http import Http404
 from django.urls import reverse
 from django.utils import timezone
@@ -7,8 +7,8 @@ from django.utils.translation import ugettext as _
 from django.views.generic import ListView
 
 from judge.comments import CommentedDetailView
-from judge.models import BlogPost, Comment, Problem, Contest, Profile, Submission, Language, ProblemClarification
-from judge.models import Ticket
+from judge.models import BlogPost, Comment, Contest, Language, Problem, ProblemClarification, Profile, Submission, \
+    Ticket
 from judge.utils.cachedict import CacheDict
 from judge.utils.diggpaginator import DiggPaginator
 from judge.utils.problems import user_completed_ids

judge/views/comment.py

@@ -4,7 +4,7 @@ from django.core.exceptions import PermissionDenied
 from django.db import IntegrityError, transaction
 from django.db.models import F
 from django.forms.models import ModelForm
-from django.http import HttpResponseForbidden, HttpResponseBadRequest, HttpResponse, Http404
+from django.http import Http404, HttpResponse, HttpResponseBadRequest, HttpResponseForbidden
 from django.shortcuts import get_object_or_404
 from django.utils.translation import gettext as _
 from django.views.decorators.http import require_POST

judge/views/contests.py

@@ -1,6 +1,6 @@
 from calendar import Calendar, SUNDAY
-from collections import namedtuple, defaultdict
-from datetime import timedelta, date, datetime, time
+from collections import defaultdict, namedtuple
+from datetime import date, datetime, time, timedelta
 from functools import partial
 from itertools import chain
 from operator import attrgetter
@@ -8,11 +8,11 @@ from operator import attrgetter
 from django import forms
 from django.contrib.auth.mixins import LoginRequiredMixin
 from django.core.cache import cache
-from django.core.exceptions import ObjectDoesNotExist, ImproperlyConfigured
+from django.core.exceptions import ImproperlyConfigured, ObjectDoesNotExist
 from django.db import IntegrityError
-from django.db.models import Q, Min, Max, Sum, Case, When, IntegerField
-from django.http import HttpResponseRedirect, HttpResponseBadRequest, Http404, HttpResponse
-from django.shortcuts import render, get_object_or_404
+from django.db.models import Case, IntegerField, Max, Min, Q, Sum, When
+from django.http import Http404, HttpResponse, HttpResponseBadRequest, HttpResponseRedirect
+from django.shortcuts import get_object_or_404, render
 from django.template.defaultfilters import date as date_filter
 from django.urls import reverse
 from django.utils import timezone
@@ -25,8 +25,7 @@ from django.views.generic.detail import BaseDetailView, DetailView
 
 from judge import event_poster as event
 from judge.comments import CommentedDetailView
-from judge.models import Contest, ContestParticipation, ContestTag, Profile
-from judge.models import Problem
+from judge.models import Contest, ContestParticipation, ContestTag, Problem, Profile
 from judge.utils.opengraph import generate_opengraph
 from judge.utils.ranker import ranker
 from judge.utils.views import DiggPaginatorMixin, TitleMixin, generic_message

judge/views/organization.py

@@ -8,17 +8,17 @@ from django.core.exceptions import PermissionDenied
 from django.db import transaction
 from django.db.models import Count, Q
 from django.forms import Form, modelformset_factory
-from django.http import Http404, HttpResponseRedirect, HttpResponsePermanentRedirect
+from django.http import Http404, HttpResponsePermanentRedirect, HttpResponseRedirect
 from django.urls import reverse
 from django.utils.translation import gettext as _, gettext_lazy, ungettext
-from django.views.generic import DetailView, ListView, View, UpdateView, FormView
+from django.views.generic import DetailView, FormView, ListView, UpdateView, View
 from django.views.generic.detail import SingleObjectMixin, SingleObjectTemplateResponseMixin
 from reversion import revisions
 
 from judge.forms import EditOrganizationForm
 from judge.models import Organization, OrganizationRequest, Profile
 from judge.utils.ranker import ranker
-from judge.utils.views import generic_message, TitleMixin
+from judge.utils.views import TitleMixin, generic_message
 
 __all__ = ['OrganizationList', 'OrganizationHome', 'OrganizationUsers', 'OrganizationMembershipChange',
            'JoinOrganization', 'LeaveOrganization', 'EditOrganization', 'RequestJoinOrganization',

judge/views/preview.py

@@ -1,5 +1,5 @@
 from django.http import HttpResponseBadRequest
-from django.views.generic.base import TemplateResponseMixin, ContextMixin, View
+from django.views.generic.base import ContextMixin, TemplateResponseMixin, View
 
 
 class MarkdownPreviewView(TemplateResponseMixin, ContextMixin, View):

judge/views/problem.py

@@ -10,15 +10,15 @@ from django.contrib.auth.decorators import login_required
 from django.contrib.auth.mixins import PermissionRequiredMixin
 from django.core.exceptions import ObjectDoesNotExist, PermissionDenied
 from django.db import transaction
-from django.db.models import Count, Q, F, Prefetch
+from django.db.models import Count, F, Prefetch, Q
 from django.db.utils import ProgrammingError
-from django.http import Http404, HttpResponseRedirect, HttpResponse, HttpResponseForbidden
-from django.shortcuts import render, get_object_or_404
+from django.http import Http404, HttpResponse, HttpResponseForbidden, HttpResponseRedirect
+from django.shortcuts import get_object_or_404, render
 from django.template.loader import get_template
 from django.urls import reverse
-from django.utils import translation, timezone
+from django.utils import timezone, translation
 from django.utils.functional import cached_property
-from django.utils.html import format_html, escape
+from django.utils.html import escape, format_html
 from django.utils.safestring import mark_safe
 from django.utils.translation import gettext as _, gettext_lazy
 from django.views.generic import ListView, View
@@ -28,17 +28,17 @@ from django.views.generic.detail import SingleObjectMixin
 from django_ace.widgets import ACE_URL
 from judge.comments import CommentedDetailView
 from judge.forms import ProblemCloneForm, ProblemSubmitForm
-from judge.models import ContestSubmission, ContestProblem, Judge, Language, Problem, ProblemGroup, \
+from judge.models import ContestProblem, ContestSubmission, Judge, Language, Problem, ProblemGroup, \
     ProblemTranslation, ProblemType, RuntimeVersion, Solution, Submission, SubmissionSource, \
     TranslatedProblemForeignKeyQuerySet
-from judge.pdf_problems import HAS_PDF, DefaultPdfMaker
+from judge.pdf_problems import DefaultPdfMaker, HAS_PDF
 from judge.utils.diggpaginator import DiggPaginator
 from judge.utils.opengraph import generate_opengraph
-from judge.utils.problems import contest_completed_ids, user_completed_ids, contest_attempted_ids, user_attempted_ids, \
-    hot_problems
-from judge.utils.strings import safe_int_or_none, safe_float_or_none
+from judge.utils.problems import contest_attempted_ids, contest_completed_ids, hot_problems, user_attempted_ids, \
+    user_completed_ids
+from judge.utils.strings import safe_float_or_none, safe_int_or_none
 from judge.utils.tickets import own_ticket_filter
-from judge.utils.views import SingleObjectFormView, TitleMixin, generic_message, QueryStringSortMixin
+from judge.utils.views import QueryStringSortMixin, SingleObjectFormView, TitleMixin, generic_message
 
 
 def get_contest_problem(problem, profile):

judge/views/problem_data.py

@@ -2,14 +2,14 @@ import json
 import mimetypes
 import os
 from itertools import chain
-from zipfile import ZipFile, BadZipfile
+from zipfile import BadZipfile, ZipFile
 
 from django.conf import settings
 from django.contrib.auth.decorators import login_required
 from django.contrib.auth.mixins import LoginRequiredMixin
 from django.core.exceptions import ValidationError
-from django.forms import ModelForm, formset_factory, HiddenInput, NumberInput, Select, BaseModelFormSet
-from django.http import HttpResponseRedirect, HttpResponse, Http404
+from django.forms import BaseModelFormSet, HiddenInput, ModelForm, NumberInput, Select, formset_factory
+from django.http import Http404, HttpResponse, HttpResponseRedirect
 from django.shortcuts import get_object_or_404, render
 from django.urls import reverse
 from django.utils.html import escape, format_html
@@ -18,7 +18,7 @@ from django.utils.translation import gettext as _
 from django.views.generic import DetailView
 
 from judge.highlight_code import highlight_code
-from judge.models import ProblemData, Problem, ProblemTestCase, problem_data_storage, Submission
+from judge.models import Problem, ProblemData, ProblemTestCase, Submission, problem_data_storage
 from judge.utils.problem_data import ProblemDataCompiler
 from judge.utils.unicode import utf8text
 from judge.utils.views import TitleMixin

judge/views/problem_manage.py

@@ -2,7 +2,7 @@ from operator import itemgetter
 
 from celery.result import AsyncResult
 from django.contrib import messages
-from django.http import Http404, HttpResponseRedirect, HttpResponseBadRequest, HttpResponse
+from django.http import Http404, HttpResponse, HttpResponseBadRequest, HttpResponseRedirect
 from django.urls import reverse
 from django.utils.html import escape, format_html
 from django.utils.safestring import mark_safe
@@ -11,7 +11,7 @@ from django.views.generic import DetailView
 from django.views.generic.detail import BaseDetailView
 
 from judge.models import Language, Submission
-from judge.tasks import rejudge_problem_filter, rescore_problem, apply_submission_filter
+from judge.tasks import apply_submission_filter, rejudge_problem_filter, rescore_problem
 from judge.utils.celery import redirect_to_task_status
 from judge.utils.views import TitleMixin
 from judge.views.problem import ProblemMixin

judge/views/ranked_submission.py

@@ -5,7 +5,7 @@ from django.utils.translation import gettext as _
 from judge.models import Submission
 from judge.utils.problems import get_result_data
 from judge.utils.raw_sql import join_sql_subquery
-from judge.views.submission import ProblemSubmissions, ForceContestMixin
+from judge.views.submission import ForceContestMixin, ProblemSubmissions
 
 __all__ = ['RankedSubmissions', 'ContestRankedSubmission']
 

judge/views/register.py

@@ -8,15 +8,15 @@ from django.contrib.auth.password_validation import get_default_password_validat
 from django.forms import ChoiceField, ModelChoiceField
 from django.shortcuts import render
 from django.utils.translation import gettext, gettext_lazy as _
-from registration.backends.default.views import (RegistrationView as OldRegistrationView,
-                                                 ActivationView as OldActivationView)
+from registration.backends.default.views import (ActivationView as OldActivationView,
+                                                 RegistrationView as OldRegistrationView)
 from registration.forms import RegistrationForm
 from sortedm2m.forms import SortedMultipleChoiceField
 
-from judge.models import Profile, Language, Organization, TIMEZONE
-from judge.utils.recaptcha import ReCaptchaWidget, ReCaptchaField
+from judge.models import Language, Organization, Profile, TIMEZONE
+from judge.utils.recaptcha import ReCaptchaField, ReCaptchaWidget
 from judge.utils.subscription import Subscription, newsletter_id
-from judge.widgets import Select2Widget, Select2MultipleWidget
+from judge.widgets import Select2MultipleWidget, Select2Widget
 
 valid_id = re.compile(r'^\w+$')
 bad_mail_regex = list(map(re.compile, getattr(settings, 'BAD_MAIL_PROVIDER_REGEX', ())))

judge/views/select2.py

@@ -1,11 +1,11 @@
-from django.db.models import Q, F
-from django.http import JsonResponse, Http404
+from django.db.models import F, Q
+from django.http import Http404, JsonResponse
 from django.shortcuts import get_object_or_404
 from django.utils.encoding import smart_text
 from django.views.generic.list import BaseListView
 
 from judge.jinja2.gravatar import gravatar
-from judge.models import Profile, Organization, Problem, Comment, Contest
+from judge.models import Comment, Contest, Organization, Problem, Profile
 
 
 def _get_user_queryset(term):

judge/views/stats.py

@@ -1,8 +1,8 @@
-from itertools import repeat, chain
+from itertools import chain, repeat
 from operator import itemgetter
 
 from django.conf import settings
-from django.db.models import Count, Case, When, IntegerField, Value, FloatField
+from django.db.models import Case, Count, FloatField, IntegerField, Value, When
 from django.db.models.expressions import CombinedExpression
 from django.http import JsonResponse
 from django.shortcuts import render

judge/views/status.py

@@ -1,12 +1,12 @@
 from collections import defaultdict
 from functools import partial
-from packaging import version
 
 from django.shortcuts import render
 from django.utils import six
 from django.utils.translation import gettext as _
+from packaging import version
 
-from judge.models import Judge, RuntimeVersion, Language
+from judge.models import Judge, Language, RuntimeVersion
 
 __all__ = ['status_all', 'status_table']
 

judge/views/submission.py

@@ -3,25 +3,25 @@ from operator import attrgetter
 
 from django.contrib.auth.mixins import LoginRequiredMixin
 from django.core.cache import cache
-from django.core.exceptions import ObjectDoesNotExist, PermissionDenied, ImproperlyConfigured
+from django.core.exceptions import ImproperlyConfigured, ObjectDoesNotExist, PermissionDenied
 from django.db.models import Prefetch, Q
-from django.http import Http404, HttpResponse, HttpResponseRedirect, HttpResponseBadRequest, JsonResponse
-from django.shortcuts import render, get_object_or_404
+from django.http import Http404, HttpResponse, HttpResponseBadRequest, HttpResponseRedirect, JsonResponse
+from django.shortcuts import get_object_or_404, render
 from django.urls import reverse
 from django.utils import timezone
 from django.utils.functional import cached_property
-from django.utils.html import format_html, escape
+from django.utils.html import escape, format_html
 from django.utils.safestring import mark_safe
 from django.utils.translation import gettext as _, gettext_lazy
 from django.views.decorators.http import require_POST
-from django.views.generic import ListView, DetailView
+from django.views.generic import DetailView, ListView
 
 from judge import event_poster as event
 from judge.highlight_code import highlight_code
-from judge.models import Problem, Submission, Profile, Contest, ProblemTranslation, Language
-from judge.utils.problems import get_result_data, user_completed_ids, user_authored_ids, user_editable_ids
+from judge.models import Contest, Language, Problem, ProblemTranslation, Profile, Submission
+from judge.utils.problems import get_result_data, user_authored_ids, user_completed_ids, user_editable_ids
 from judge.utils.raw_sql import use_straight_join
-from judge.utils.views import TitleMixin, DiggPaginatorMixin
+from judge.utils.views import DiggPaginatorMixin, TitleMixin
 
 
 def submission_related(queryset):

judge/views/tasks.py

@@ -4,12 +4,12 @@ from uuid import UUID
 
 from celery.result import AsyncResult
 from django.core.exceptions import PermissionDenied
-from django.http import Http404, JsonResponse, HttpResponseBadRequest, HttpResponseRedirect
+from django.http import Http404, HttpResponseBadRequest, HttpResponseRedirect, JsonResponse
 from django.shortcuts import render
 from django.urls import reverse
 from django.utils.http import is_safe_url
 
-from judge.tasks import success, failure, progress
+from judge.tasks import failure, progress, success
 from judge.utils.celery import redirect_to_task_status
 from judge.utils.views import short_circuit_middleware
 

judge/views/ticket.py

@@ -2,30 +2,24 @@ import json
 
 from django import forms
 from django.contrib.auth.mixins import LoginRequiredMixin
-from django.core.exceptions import PermissionDenied, ImproperlyConfigured, ValidationError
-from django.http import Http404
-from django.http import HttpResponse
-from django.http import HttpResponseBadRequest
-from django.http import HttpResponseRedirect
-from django.http import JsonResponse
+from django.core.exceptions import ImproperlyConfigured, PermissionDenied, ValidationError
+from django.http import Http404, HttpResponse, HttpResponseBadRequest, HttpResponseRedirect, JsonResponse
+from django.shortcuts import get_object_or_404
 from django.template.defaultfilters import truncatechars
 from django.template.loader import get_template
-from django.urls import reverse
-from django.urls import reverse_lazy
+from django.urls import reverse, reverse_lazy
 from django.utils.functional import cached_property
 from django.utils.html import escape, format_html, linebreaks
 from django.utils.safestring import mark_safe
-from django.utils.translation import gettext_lazy, gettext as _
+from django.utils.translation import gettext as _, gettext_lazy
 from django.views import View
 from django.views.generic import ListView
 from django.views.generic.detail import SingleObjectMixin
-from django.shortcuts import get_object_or_404
 
 from judge import event_poster as event
-from judge.models import Profile
-from judge.models import Ticket, TicketMessage, Problem
+from judge.models import Problem, Profile, Ticket, TicketMessage
 from judge.utils.diggpaginator import DiggPaginator
-from judge.utils.tickets import own_ticket_filter, filter_visible_tickets
+from judge.utils.tickets import filter_visible_tickets, own_ticket_filter
 from judge.utils.views import SingleObjectFormView, TitleMixin, paginate_query_context
 from judge.views.problem import ProblemMixin
 from judge.widgets import HeavyPreviewPageDownWidget

judge/views/totp.py

@@ -1,4 +1,5 @@
 import base64
+from io import BytesIO
 
 import pyotp
 import qrcode
@@ -10,7 +11,6 @@ from django.urls import reverse
 from django.utils.http import is_safe_url
 from django.utils.translation import gettext as _
 from django.views.generic import FormView
-from io import BytesIO
 
 from judge.forms import TOTPForm
 from judge.utils.views import TitleMixin

judge/views/user.py

@@ -10,9 +10,9 @@ from django.contrib.auth.models import Permission
 from django.contrib.auth.views import redirect_to_login
 from django.contrib.contenttypes.models import ContentType
 from django.db import transaction
-from django.db.models import Max, Count, Min
+from django.db.models import Count, Max, Min
 from django.http import Http404, HttpResponseRedirect, JsonResponse
-from django.shortcuts import render, get_object_or_404
+from django.shortcuts import get_object_or_404, render
 from django.urls import reverse
 from django.utils import timezone
 from django.utils.formats import date_format
@@ -23,14 +23,14 @@ from django.views.generic import DetailView, ListView, TemplateView
 from reversion import revisions
 
 from judge.forms import ProfileForm, newsletter_id
-from judge.models import Profile, Submission, Rating
-from judge.performance_points import get_pp_breakdown, PP_ENTRIES
+from judge.models import Profile, Rating, Submission
+from judge.performance_points import PP_ENTRIES, get_pp_breakdown
 from judge.ratings import rating_class, rating_progress
 from judge.utils.problems import contest_completed_ids, user_completed_ids
 from judge.utils.ranker import ranker
 from judge.utils.subscription import Subscription
 from judge.utils.unicode import utf8text
-from judge.utils.views import TitleMixin, generic_message, DiggPaginatorMixin, QueryStringSortMixin
+from judge.utils.views import DiggPaginatorMixin, QueryStringSortMixin, TitleMixin, generic_message
 from .contests import ContestRanking
 
 __all__ = ['UserPage', 'UserAboutPage', 'UserProblemsPage', 'users', 'edit_profile']

judge/views/widgets.py

@@ -2,7 +2,7 @@ import requests
 from django.conf import settings
 from django.contrib.auth.decorators import login_required
 from django.core.exceptions import ImproperlyConfigured
-from django.http import HttpResponseForbidden, HttpResponseBadRequest, HttpResponse, Http404, HttpResponseRedirect
+from django.http import Http404, HttpResponse, HttpResponseBadRequest, HttpResponseForbidden, HttpResponseRedirect
 from django.utils.translation import gettext as _
 from django.views.generic import View
 

judge/widgets/mixins.py

@@ -2,7 +2,7 @@ from textwrap import dedent
 
 from django import forms
 from django.conf import settings
-from django.template import Template, Context
+from django.template import Context, Template
 from lxml import html