Minimal working version

* Upgrade dependencies
* Fix ugettext
* Fix bad urls

club/forms.py

@@ -25,7 +25,7 @@
 
 from django.conf import settings
 from django import forms
-from django.utils.translation import ugettext_lazy as _
+from django.utils.translation import gettext_lazy as _
 
 from ajax_select.fields import AutoCompleteSelectField, AutoCompleteSelectMultipleField
 

club/models.py

@@ -26,7 +26,7 @@
 from django.db import models
 from django.core import validators
 from django.conf import settings
-from django.utils.translation import ugettext_lazy as _
+from django.utils.translation import gettext_lazy as _
 from django.core.exceptions import ValidationError, ObjectDoesNotExist
 from django.db import transaction
 from django.urls import reverse

club/tests.py

@@ -25,7 +25,7 @@
 from django.conf import settings
 from django.test import TestCase
 from django.utils import timezone, html
-from django.utils.translation import ugettext as _
+from django.utils.translation import gettext as _
 from django.urls import reverse
 from django.core.management import call_command
 from django.core.exceptions import ValidationError, NON_FIELD_ERRORS

club/views.py

@@ -39,8 +39,8 @@ from django.http import (
 )
 from django.urls import reverse, reverse_lazy
 from django.utils import timezone
-from django.utils.translation import ugettext_lazy as _
-from django.utils.translation import ugettext as _t
+from django.utils.translation import gettext_lazy as _
+from django.utils.translation import gettext as _t
 from django.core.exceptions import PermissionDenied, ValidationError, NON_FIELD_ERRORS
 from django.core.paginator import Paginator, InvalidPage
 from django.shortcuts import get_object_or_404, redirect