[Answered ]-An Inline class isnt working in django admin

Firstly, do not forget checking all migrations, and It would be more good to keep your models in models.py and do not mix them with admin related changes. I would recommend you to write them in admin.py.

You can use both images and attributes like that:

class ProductAttributesInlineAdmin(admin.TabularInline):
    model = ProductAttributes
    extra = 2


@admin.register(models.Product)
class ProductAdmin(admin.ModelAdmin):
    ...
    inlines = [ProductAttributesInlineAdmin, ProductImageInlineAdmin]