coderedcms/coderedcms/admin_urls.py

from django.urls import include, path, re_path
from wagtailimportexport import urls as wagtailimportexport_urls
from wagtail.admin import urls as wagtailadmin_urls
from coderedcms.views import import_pages_from_csv_file


urlpatterns = [
    path('codered/import-export/import_from_csv/',
         import_pages_from_csv_file, name="import_from_csv"),
    re_path(r'', include(wagtailadmin_urls)),
    re_path(r'', include(wagtailimportexport_urls)),
]