Pep8 lint

rest_framework/fields.py

@@ -336,13 +336,13 @@ class ModelField(WritableField):
             raise ValueError("ModelField requires 'model_field' kwarg")
 
         self.min_length = kwargs.pop('min_length',
-                            getattr(self.model_field, 'min_length', None))
+                                     getattr(self.model_field, 'min_length', None))
         self.max_length = kwargs.pop('max_length',
-                            getattr(self.model_field, 'max_length', None))
+                                     getattr(self.model_field, 'max_length', None))
         self.min_value = kwargs.pop('min_value',
-                            getattr(self.model_field, 'min_value', None))
+                                    getattr(self.model_field, 'min_value', None))
         self.max_value = kwargs.pop('max_value',
-                            getattr(self.model_field, 'max_value', None))
+                                    getattr(self.model_field, 'max_value', None))
 
         super(ModelField, self).__init__(*args, **kwargs)