Django Rest Framework playground

custom_error_messages.py

# https://www.django-rest-framework.org/api-guide/fields/#error_messages
from rest_framework import serializers as s


class User(s.Serializer):
    name = s.CharField(error_messages={"blank": "This is a custom message! Yeah!"})
    
    
user = User(data={"name": ""})
user.is_valid()
print(user.errors)

In [9]: from rest_framework import serializers as s
   ...:
   ...:
   ...: class User(s.Serializer):
   ...:     name = s.CharField(error_messages={"blank": "This is a custom message! Yeah!"})
   ...:
   ...:
   ...: user = User(data={"name": ""})
   ...: user.is_valid()
   ...: print(user.errors)
{'name': [ErrorDetail(string='This is a custom message! Yeah!', code='blank')]}