Django - remove duplicate objects where there is more than one field to compare

gistfile1.txt

from django.db.models import Count, Max, Q
from django.db.models.functions import Length
from ma_audience.models import Audience

unique_fields = ['email']

duplicates = (
    Audience.objects.filter(Q(organization_id=81), ~Q(email=''), Q(email__isnull=False)).values(*unique_fields)
    .order_by()
    .annotate(max_id=Max('id'), count_id=Count('id'))
    .filter(count_id__gt=1)
)
for duplicate in duplicates:
    (
        Audience.objects
        .filter(organization_id=81)
        .filter(**{x: duplicate[x] for x in unique_fields})
        .annotate(sn_length=Length('member_sn'))
        .filter(sn_length__lt=7)
        .exclude(id=duplicate['max_id'])
        .delete()
    )
for duplicate in duplicates:
    (
        print(Audience.objects
        .filter(organization_id=81)
        .filter(**{x: duplicate[x] for x in unique_fields})
        .annotate(sn_length=Length('member_sn'))
        .filter(sn_length__lt=7)
        .exclude(id=duplicate['max_id'])
        .values('member_sn'))
    )
for duplicate in duplicates:
    (
        Audience.objects
        .filter(**{x: duplicate[x] for x in unique_fields})
        .exclude(id=duplicate['max_id'])
        .delete()
    )

remove_duplicates.py

from django.db.models import Count, Max

unique_fields = ['field_1', 'field_2']

duplicates = (
    MyModel.objects.values(*unique_fields)
    .order_by()
    .annotate(max_id=Max('id'), count_id=Count('id'))
    .filter(count_id__gt=1)
)

for duplicate in duplicates:
    (
        MyModel.objects
        .filter(**{x: duplicate[x] for x in unique_fields})
        .exclude(id=duplicate['max_id'])
        .delete()
    )