244         if isinstance(cls_or_self, type):

   244         if isinstance(cls_or_self, type):

   245             fields = cls_or_self._fields_

   245             fields = cls_or_self._fields_

   246         else:

   246         else:

   247             fields = cls_or_self.fields

   247             fields = cls_or_self.fields

   248         fields.remove(field)

   248         fields.remove(field)

   249     

   257     

   250     @property

   258     @property

   251     def form_needs_multipart(self):

   259     def form_needs_multipart(self):

   252         return any(field.needs_multipart for field in self.fields) 

   260         return any(field.needs_multipart for field in self.fields) 

   253 

   261