<filename>accounts/admin.py
from django.contrib import admin
from accounts.models import Customer,Seller

# Register your models here.
admin.site.register(Customer)
admin.site.register(Seller)

<filename>accounts/admin.py
from django.contrib import admin
from accounts.models import Customer,Seller

# Register your models here.
admin.site.register(Customer)
admin.site.register(Seller)

# Register your models here.