Remove ConfigurationError in favor of Django's ImproperlyConfigured

rest_framework/exceptions.py

@@ -86,10 +86,3 @@ def __init__(self, wait=None, detail=None):
             self.detail = format % (self.wait, self.wait != 1 and 's' or '')
         else:
             self.detail = detail or self.default_detail
-
-
-class ConfigurationError(Exception):
-    """
-    Indicates an internal server error.
-    """
-    pass

rest_framework/generics.py

@@ -285,7 +285,7 @@ def get_object(self, queryset=None):
             )
             filter_kwargs = {self.slug_field: slug}
         else:
-            raise exceptions.ConfigurationError(
+            raise ImproperlyConfigured(
                 'Expected view %s to be called with a URL keyword argument '
                 'named "%s". Fix your URL conf, or set the `.lookup_field` '
                 'attribute on the view correctly.' %

rest_framework/renderers.py

@@ -11,14 +11,14 @@
 import copy
 import json
 from django import forms
+from django.core.exceptions import ImproperlyConfigured
 from django.http.multipartparser import parse_header
 from django.template import RequestContext, loader, Template
 from django.utils.xmlutils import SimplerXMLGenerator
 from rest_framework.compat import StringIO
 from rest_framework.compat import six
 from rest_framework.compat import smart_text
 from rest_framework.compat import yaml
-from rest_framework.exceptions import ConfigurationError
 from rest_framework.settings import api_settings
 from rest_framework.request import clone_request
 from rest_framework.utils import encoders
@@ -270,7 +270,7 @@ def get_template_names(self, response, view):
             return [self.template_name]
         elif hasattr(view, 'get_template_names'):
             return view.get_template_names()
-        raise ConfigurationError('Returned a template response with no template_name')
+        raise ImproperlyConfigured('Returned a template response with no template_name')
 
     def get_exception_template(self, response):
         template_names = [name % {'status_code': response.status_code}

rest_framework/throttling.py

@@ -3,7 +3,7 @@
 """
 from __future__ import unicode_literals
 from django.core.cache import cache
-from rest_framework import exceptions
+from django.core.exceptions import ImproperlyConfigured
 from rest_framework.settings import api_settings
 import time
 
@@ -65,13 +65,13 @@ def get_rate(self):
         if not getattr(self, 'scope', None):
             msg = ("You must set either `.scope` or `.rate` for '%s' throttle" %
                    self.__class__.__name__)
-            raise exceptions.ConfigurationError(msg)
+            raise ImproperlyConfigured(msg)
 
         try:
             return self.settings.DEFAULT_THROTTLE_RATES[self.scope]
         except KeyError:
             msg = "No default throttle rate set for '%s' scope" % self.scope
-            raise exceptions.ConfigurationError(msg)
+            raise ImproperlyConfigured(msg)
 
     def parse_rate(self, rate):
         """