diff --git a/rest_framework/schemas/inspectors.py b/rest_framework/schemas/inspectors.py
index 135eb6e4e..aeb19d618 100644
--- a/rest_framework/schemas/inspectors.py
+++ b/rest_framework/schemas/inspectors.py
@@ -163,8 +163,10 @@ class ViewInspector(object):
     @property
     def view(self):
         """View property."""
-        assert self._view is not None, "Schema generation REQUIRES a view instance. (Hint: you accessed `schema` from "\
-                                       "the view class rather than an instance.) "
+        assert self._view is not None, (
+            "Schema generation REQUIRES a view instance. (Hint: you accessed `schema` from "
+            "the view class rather than an instance.) "
+        )
         return self._view
 
     @view.setter
@@ -499,8 +501,9 @@ class DefaultSchema(ViewInspector):
             return result
 
         inspector_class = api_settings.DEFAULT_SCHEMA_CLASS
-        assert issubclass(inspector_class, ViewInspector), \
+        assert issubclass(inspector_class, ViewInspector), (
             "DEFAULT_SCHEMA_CLASS must be set to a ViewInspector (usually an AutoSchema) subclass"
+        )
         inspector = inspector_class()
         inspector.view = instance
         return inspector