Try the correct NoReverseMatch location.

rest_framework/relations.py

 from __future__ import unicode_literals
-from django.core.exceptions import ObjectDoesNotExist, ValidationError, NoReverseMatch
-from django.core.urlresolvers import resolve, get_script_prefix
+from django.core.exceptions import ObjectDoesNotExist, ValidationError
+from django.core.urlresolvers import resolve, get_script_prefix, NoReverseMatch
 from django import forms
 from django.forms import widgets
 from django.forms.models import ModelChoiceIterator

rest_framework/templatetags/rest_framework.py

 from __future__ import unicode_literals, absolute_import
 from django import template
-from django.core.exceptions import NoReverseMatch
-from django.core.urlresolvers import reverse
+from django.core.urlresolvers import reverse, NoReverseMatch
 from django.http import QueryDict
 from django.utils.html import escape
 from django.utils.safestring import SafeData, mark_safe