From 9d8b176374e32da2a8695be4c5efe4e51421e1a2 Mon Sep 17 00:00:00 2001 From: Genaro Camele Date: Mon, 13 Oct 2025 16:29:24 -0300 Subject: [PATCH] Improved ValueError msg --- rest_framework/serializers.py | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/rest_framework/serializers.py b/rest_framework/serializers.py index 74dd34be3..c655f47a9 100644 --- a/rest_framework/serializers.py +++ b/rest_framework/serializers.py @@ -1094,8 +1094,7 @@ class ModelSerializer(Serializer): for field_name in declared_fields.keys(): if field_name in info.relations and info.relations[field_name].to_many and declared_fields[field_name].default is None: raise ValueError( - f"The field '{field_name}' on serializer '{self.__class__.__name__}' is a ManyToMany field and cannot have a default value of None. " - "Please set an appropriate default value, such as an empty list, or remove the default." + f"The field '{field_name}' on serializer '{self.__class__.__name__}' is a ManyToMany field and cannot have a default value of None." ) for field_name in field_names: