To view the default admin template you can access it in the django/contrib/admin/templates/admin folder . In this situation you will most likely be using a virtual environment and can find this folder in the directory that contains all the installed libraries.
Read moreHow do forms work in Django?
Django form handling process
Read moreHow do I override a form in Django admin?
You can override forms for django’s built-in admin by setting form attribute of ModelAdmin to your own form class . See: https://docs.djangoproject.com/en/dev/ref/contrib/admin/#django.contrib.admin.ModelAdmin.form. https://docs.djangoproject.com/en/dev/ref/contrib/admin/#adding-custom-validation-to-the-admin.12 Mar 2016
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