diff --git a/rest_framework/schemas/inspectors.py b/rest_framework/schemas/inspectors.py
index baaa1f20c..135eb6e4e 100644
--- a/rest_framework/schemas/inspectors.py
+++ b/rest_framework/schemas/inspectors.py
@@ -163,7 +163,8 @@ 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
@@ -498,7 +499,8 @@ class DefaultSchema(ViewInspector):
             return result
 
         inspector_class = api_settings.DEFAULT_SCHEMA_CLASS
-        assert issubclass(inspector_class, ViewInspector), "DEFAULT_SCHEMA_CLASS must be set to a ViewInspector (usually an AutoSchema) subclass"
+        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