Stop using deprecated Django APIs

pretix_servicefees/__init__.py

@@ -1,21 +1 @@
-from django.apps import AppConfig
-from django.utils.translation import gettext_lazy
-
-
-class PluginApp(AppConfig):
-    name = 'pretix_servicefees'
-    verbose_name = 'Service Fees'
-
-    class PretixPluginMeta:
-        name = gettext_lazy('Service Fees')
-        author = 'Raphael Michel'
-        category = 'FEATURE'
-        description = gettext_lazy('This plugin allows to charge a service fee on all non-free orders.')
-        visible = True
-        version = '1.10.0'
-
-    def ready(self):
-        from . import signals  # NOQA
-
-
-default_app_config = 'pretix_servicefees.PluginApp'
+__version__ = '1.10.0'

pretix_servicefees/apps.py

@@ -0,0 +1,21 @@
+from django.apps import AppConfig
+from django.utils.translation import gettext_lazy
+from . import __version__
+
+
+class PluginApp(AppConfig):
+    name = 'pretix_servicefees'
+    verbose_name = 'Service Fees'
+
+    class PretixPluginMeta:
+        name = gettext_lazy('Service Fees')
+        author = 'Raphael Michel'
+        category = 'FEATURE'
+        description = gettext_lazy('This plugin allows to charge a service fee on all non-free orders.')
+        visible = True
+        version = __version__
+
+    def ready(self):
+        from . import signals  # NOQA
+
+

pretix_servicefees/urls.py

@@ -1,8 +1,8 @@
-from django.conf.urls import url
+from django.urls import path
 
 from .views import SettingsView
 
 urlpatterns = [
-    url(r'^control/event/(?P<organizer>[^/]+)/(?P<event>[^/]+)/settings/servicefees/$',
+    path('control/event/<str:organizer>/<str:event>/settings/servicefees/',
         SettingsView.as_view(), name='settings'),
 ]

setup.py

@@ -3,6 +3,7 @@ from distutils.command.build import build
 
 from django.core import management
 from setuptools import setup, find_packages
+from pretix_servicefees import __version__
 
 
 try:
@@ -25,7 +26,7 @@ cmdclass = {
 
 setup(
     name='pretix-servicefees',
-    version='1.10.0',
+    version=__version__,
     description='Allows you to impose a service fee on all non-free orders.',
     long_description=long_description,
     url='https://github.com/pretix/pretix-servicefees',