Remove unnecessary app config and make rest_framework an optional dep…

…endency

setup.py

@@ -1,11 +1,4 @@
 #!/usr/bin/env python
-"""
-Installation script:
-
-To release a new version to PyPi:
-- Ensure the version is correctly set in xently.__init__.py
-- Run: make release
-"""
 import os
 import re
 import shutil
@@ -68,9 +61,7 @@ def get_version(package):
     packages=find_packages(),
     include_package_data=True,
     python_requires=">=3.6",
-    install_requires=[
-        "djangorestframework",
-    ],
+    install_requires=["django>=2.2"],
     classifiers=[
         "Development Status :: 5 - Production/Stable",
         "Environment :: Web Environment",

xently/__init__.py

@@ -1 +1 @@
-__version__ = "1.0.0"
+__version__ = "1.0.1"

xently/config.py

@@ -2,11 +2,12 @@
 from django.conf import settings
 from django.core.exceptions import ImproperlyConfigured
 from django.urls import URLPattern, include, re_path, path
-from rest_framework.routers import DefaultRouter
 
 from xently.decorators import permissions_required
 from xently.utils import get_installed_app_config
 
+__all__ = ["AutoLoadURLsConfigMixin", "AppConfigMixin", "XentlyAppConfig"]
+
 
 class AutoLoadURLsConfigMixin:
     include_urls_in_parent = False
@@ -175,14 +176,3 @@ def urls(self):
 
 class XentlyAppConfig(AutoLoadURLsConfigMixin, AppConfigMixin, AppConfig):
     pass
-
-
-class XentlyApiAppConfig(XentlyAppConfig):
-    router = DefaultRouter()
-
-    def register_routers(self):
-        pass
-
-    def ready(self):
-        super().ready()
-        self.register_routers()

xently/decorators.py

@@ -2,7 +2,6 @@
 
 from django.contrib.auth.decorators import user_passes_test
 from django.core import exceptions
-from rest_framework import exceptions as api_exceptions
 
 __all__ = ["check_permissions", "permissions_required"]
 
@@ -57,8 +56,13 @@ def _check_permissions(user):
         outcome = check_permissions(user, permissions)
         if not outcome and user.is_authenticated:
             if api_exception:
-                raise exceptions.PermissionDenied
-            raise api_exceptions.PermissionDenied
+                try:
+                    from rest_framework import exceptions as api_exceptions
+                except ImportError:
+                    pass
+                else:
+                    raise api_exceptions.PermissionDenied
+            raise exceptions.PermissionDenied
         return outcome
 
     return user_passes_test(_check_permissions, login_url=login_url)