Signals in Django

# Signals
1. Create file signals.py

from django.contrib.auth import get_user_model
from django.db.models.signals import post_save
from django.dispatch import receiver

from petstagram.accounts.models import Profile

UserModel = get_user_model()

@receiver(post_save, sender=UserModel)
def user_created(sender, instance, created, **kwargs):
    if not created:
        return

    Profile.objects.create(user=instance)

2. In apps.py we have to write

from django.apps import AppConfig


class AccountsConfig(AppConfig):
    default_auto_field = "django.db.models.BigAutoField"
    name = "my_project_name.accounts"

    def ready(self):
        import my_project_name.accounts.accounts.signals