etesync-server/myauth/admin.py

from django.contrib import admin
from django.contrib.auth.admin import UserAdmin as DjangoUserAdmin
from .models import User
from .forms import AdminUserCreationForm


class UserAdmin(DjangoUserAdmin):
    add_form = AdminUserCreationForm
    add_fieldsets = (
        (None, {
            'classes': ('wide',),
            'fields': ('username', ),
        }),
    )

admin.site.register(User, UserAdmin)