django-deprecation

import os import django from django.db import models from django_deprecation import DeprecatedField os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'myproject.settings') # Replace with your project settings django.setup() class Musician(models.Model): name = models.CharField(max_length=50) def __str__(self): return self.name class Album(models.Model): artist = models.ForeignKey(Musician, on_delete=models.CASCADE) # Deprecate 'musician' field, pointing to 'artist' musician = DeprecatedField('artist') name = models.CharField(max_length=100) def __str__(self): return self.name # Example usage (assuming models are migrated and data exists) # No runnable example for DB operations without full Django setup # print('Demonstrating DeprecatedField behavior:') # band = Musician.objects.create(name='The Beatles') # album = Album.objects.create(artist=band, name='Abbey Road') # assert album.musician == album.artist # print(f"Album name: {album.name}, Musician (deprecated): {album.musician.name}, Artist (new): {album.artist.name}")