If you add Permission in Django via Meta or programatically , then you realized that you need to edit or even delete the permission.
How to edit or delete Permissions?
If you are really sure you want to edit or delete it with any risk, you can add Permission to your admin page. 
from django.contrib.auth.models import Permission admin.site.register(Permission)
and of course you should change (or delete it) first on your model or code.